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Phase II, multi-center, 3 part, staggered cohort, open-label and double blind, randomized, placebo controlled study involving 3 age-determined cohorts (Cohort 1: between 12 and 17 years old; Cohort 2: between 6 and 11 years old; Cohort 3: between 1 and 5 years old). Daily dosing with eltrombopag will begin with 5 patients in the oldest age cohort in an open label fashion, and a review of safety, pharmacokinetic and platelet count data will be performed regularly. If no safety concerns are identified after 12 weeks, 18 additional patients will be randomised to placebo or eltrombopag (2:1 randomisation). After 7 weeks of randomized treatment, all patients will receive eltrombopag in an open label fashion. The total duration of treatment with eltrombopag will be 24 weeks. If at the time of the aforementioned 12 week review of the first 5 patients no safety issues are identified, dosing will begin in the next lower age cohort with an initial group of 5 patients. The same procedure will be followed in terms of safety review and subsequent enrolment and randomisation of the additional patients. Initiation of the younger age cohort will take place once data from the previous has been evaluated. Doses will be adjusted according to platelet counts and tolerability. The study will include a review of the safety data by a Data Safety Monitoring Board.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| eltrombopag plus standard of care | Experimental | eltrombopag |
|
| placebo plus standard of care | Placebo Comparator | placebo |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| eltrombopag | Drug | thrombopoietin receptor agonist |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Percentage of Participants Achieving a Platelet Count >=50 Giga Cells Per Liter (Gi/L) at Least Once, Between Day 8 and Day 43 (Weeks 1 to 6) of the Randomized Period of the Study (Part 2) | Participants who achieved a platelet count >=50 Gi/L at least once between Day 8 and Day 43 (first 6 weeks of Part 2) in the absense of rescue treatment were reported. A 95% confidence interval was calculated by the exact binomial method. | From Day 8 up to Day 43 of Part 2 |
| Measure | Description | Time Frame |
|---|---|---|
| Percentage of Participants Achieving Platelet Counts >=50Gi/L During Treatment With Eltrombopag in >= 60% of Assessments Between Day 15 and Day 43 (Weeks 2 Through 6) of the Randomized Treatment Period (Part 2) | Sustained platelet response between the treatment groups was assessed by determining the number of participants who achieved a platelet count >=50 Gi/L during treatment with eltrombopag in >= 60% of assessments between Day 15 and Day 43 in the absence of rescue treatment were reported here. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| GSK Clinical Trials | GlaxoSmithKline | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| GSK Investigational Site | Phoenix | Arizona | 85016 | United States | ||
| GSK Investigational Site |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 30592022 | Derived | Grainger JD, Blanchette VS, Grotzinger KM, Roy A, Bussel JB. Health-related quality of life in children with chronic immune thrombocytopenia treated with eltrombopag in the PETIT study. Br J Haematol. 2019 Apr;185(1):102-106. doi: 10.1111/bjh.15732. Epub 2018 Dec 27. | |
| 29536526 | Derived | Wire MB, Li X, Zhang J, Sallas W, Aslanis V, Ouatas T. Modeling and Simulation Support Eltrombopag Dosing in Pediatric Patients With Immune Thrombocytopenia. Clin Pharmacol Ther. 2018 Dec;104(6):1199-1207. doi: 10.1002/cpt.1066. Epub 2018 Apr 17. |
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15 par. were randomized to a 24-Week (Wk) Open-Label (OL) eltrombopag Dose-Finding period (pd) (Part 1) then did not continue. 67 par. were randomized to a 7-Wk Double-Blind placebo-controlled pd (Part 2), followed by a 24-Wk OL eltrombopag-only pd (Part 2/3) and a 4-Wk Follow-Up pd.
Pediatric participants (par.) meeting eligibility criteria were enrolled into 3 cohorts depending upon age. Cohort 1 enrolled participants who were between 12 and 17 years old, Cohort 2 enrolled participants who were between 6 and 11 years old, and Cohort 3 enrolled participants who were between 1 and 5 years old.
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| ID | Title | Description |
|---|---|---|
| FG000 | Part 1 (Dose-Finding Period) Cohort 1 | Participants aged between 12 and 17 years received a 24-week Open-Label treatment of eltrombopag administered as a tablet. The starting dose of eltrombopag was 25 milligrams (mg), once daily (QD). The participants of East Asian ancestry began at 12.5 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| Title | Milestones | Reasons Not Completed | |||||
|---|---|---|---|---|---|---|---|
| Part1 (24 Week Dose-Finding Period) |
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| Placebo |
| Drug |
placebo for comparison |
|
| Between Day 15 and Day 43 of Part 2 |
| Weighted Mean Platelet Count | The weighted mean platelet count is defined as the area under the platelet-time curve divided by the duration of the treatment (12 weeks). Based on the Analysis of Covariance (ANCOVA) model, the weighted mean platelet count is the sum of the Baseline count plus the age cohort plus the treatment. Baseline was defined as the platelet count taken on Day 1 or within 48 hours prior to the first dose of treatment. | Baseline and Day 43 of Part 2 |
| Percentage of Participants Achieving Platelet Counts >=50Gi/L at Any Time During the 24 Weeks of Eltrombopag Dosing During Part 1. | The percentage of participants achieving platelet counts >=50Gi/L at least once at any time during the 24 weeks of eltrombopag treatment were reported. | From Day 1 of treatment up to Week 24 of Part 1 |
| Percentage of Participants Achieving Platelet Counts >=50 Gi/L at Any Time During the 31 Weeks of Eltrombopag Treatment During Part 2/ 3. | The percentage of participants achieving platelet counts >=50Gi/L at least once at any time during the 24 weeks of eltrombopag treatment during Part 2/3 of the study were reported. Participants randmoized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | Part 2/3 up to Study Week 31 |
| Population Pharmacokinetic (PK) Assessment for Eltrombopag for AUC(0-t) During Part 1, 2, and 2/3. | The area under the concentration-time curve over the dosing interval (AUC0-t) data was collected to estimate primary model-based PK parameters. PK samples were collected within 3 hours prior to dosing and 2, 4, 6, 8 and 24 hours after dosing. Doses were normalized to 50mg for comparison. PK samples were collected at each on-treatment visit during Part 1, Part 2, and Part 2/3. The concentration data were pooled across visits to identify population PK and variability parameter estimates and covariate effects. AUC(0-t) is defined as the area under the concentration-time curve over the dosing interval. From the final model, a single value of AUC(0-t) was estimated for each subject, and geometric mean (95% CI) values are presented for each cohort for a 50mg dose. | From Day 1 of treatment up to Study Week 31 |
| Population Pharmacokinetic (PK) Assessments for Eltrombopag for Cmax and Ct During Part 1, 2, and 2/3. | The maximum observed concentration (Cmax) and the concentration at the end of the dosing interval (Ct) data were collected to estimate primary model-based PK parameters. PK samples were collected within 3 hours prior to dosing and 2, 4, 6, 8 and 24 hours after dosing. Doses were normalized to 50mg for comparison. PK samples were collected at each on-treatment visit during Part 1, Part 2, and Part 2/3. The concentration data were pooled across visits to identify population PK and variability parameter estimates and covariate effects. From the final model, a single value of Cmax and Ct were estimated for each subject, and geometric mean (95% CI) values are presented for each cohort for a 50mg dose. | From Day 1 of treatment up to Study Week 31 |
| Population Pharmacokinetic (PK) Assessments for Eltrombopag for Tmax During Part 1, 2, and 2/3 | The time to maximum concentration (tmax) was collected to estimate primary model-based PK parameters. PK samples were collected within 3 hours prior to dosing and 2, 4, 6, 8 and 24 hours after dosing. PK samples were collected at each on-treatment visit during Part 1, Part 2, and Part 2/3. The concentration data were pooled across visits to identify population PK and variability parameter estimates and covariate effects. From the final model, a single value of tmax was estimated for each subject, and geometric mean (95% CI) values are presented for each cohort for a 50mg dose. | From Day 1 of treatment up to Study Week 31 |
| Population Pharmacokinetic (PK) Assessments for Eltrombopag for CL/F During Part 1, 2, and 2/3 | The apparent plasma clearance following oral dosing of eltrombopag (CL/F) was collected to estimate primary model-based PK parameters. PK samples were collected within 3 hours prior to dosing and 2, 4, 6, 8 and 24 hours after dosing. PK samples were collected at each on-treatment visit during Part 1, Part 2, and Part 2/3. The concentration data were pooled across visits to identify population PK and variability parameter estimates and covariate effects. From the final model, a single value of CL/F was estimated for each subject, and geometric mean (95% CI) values are presented for each cohort for a 50mg dose. | From Day 1 of treatment up to Study Week 31 |
| Maximum Duration for Which a Participant Continuously Maintained a Platelet Count of >=50 Gi/L During the 7 Weeks of Eltrombopag Treatment in Part 2 | The maximum duration for which a participant continuously maintained a platelet count >=50 Gi/L in the absence of rescue treatment was calculated and summarized during the 24 weeks of eltrombopag treatment in Part 2. Participants with non-weekly assessments were assumed to have maintained a positive response for each week between two assessments that had positive responses. If a particpant achieved a positive response at an assessment and then achieved a negative response at the next assessment, then it was assumed that the participant had achieved a positive response for one day. Excludes periods from initiation of rescue medication until platelet count falls to below 50Gi/L, irrespective of platelet count | From Baseline through Week 7 of Part 2 |
| Maximum Duration for Which a Participant Continuously Maintained a Platelet Count of >=50 Gi/L During the 24 Weeks of Eltrombopag Treatment in Part 2/ 3 | The maximum duration for which a participant continuously maintained a platelet count >=50 Gi/L in the absence of rescue treatment was calculated and summarized during the 24 weeks of eltrombopag treatment in Part 2/3. Participants with non-weekly assessments were assumed to have maintained a positive response for each week between two assessments that had positive responses. If a particpant achieved a positive response at an assessment and then achieved a negative response at the next assessment, then it was assumed that the participant had achieved a positive response for one day. Participants randmoized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | From Baseline up to Study Week 31 |
| Percentage of Participants Who Reduced or Discontinued Baseline Concomitant Idiopathic Thrombocytopenic Purpura (ITP) Medications During the 24 Weeks of Eltrombopag Treatment During Part 1. | The participants who discontinued (dis) or had a sustained reduction (red) of a Baseline (BL) ITP medication for at least one day during the period of Day 1 of Part 1 to the last dose of study medication +1 day are reported. The denominator is the number of subjects taking an ITP medication at baseline. For participants in Part 1, Baseline is defined as Day 1 of Part 1. A sustained reduction is defined as reduction for 4 weeks or more. An attempted red or dis is a decrease in the dose or frequency from the BL dose or frequency of an ITP medication for at least one day during the period Part 1 Day 1 to the last dose of study medication + 1 day. | From Baseline up to Week 24+ 1 day of Part 1 |
| Percentage of Participants Who Reduced or Discontinued Baseline Concomitant ITP Medications During the 24 Weeks of Eltrombopag Treatment During Part 2/ 3 | Participants who discontinued (dis) or had a sustained reduction (red) of a Baseline (BL) ITP medication for at least one day during the period of Day 1 of Part 2/3 to the last dose of study medication +1 day are reported. The denominator is the number of subjects taking an ITP medication at baseline. For participants randomized to placebo in Part 2, BL is defined as Week 7 of Part 2. For participants randomized to eltrombopag in Part 2, BL is defined as Day 1 of Part 2. A sustained reduction is defined as reduction for 4 weeks or more. An attempted reduction or discontinuation is a decrease in the dose or frequency from the BL dose or frequency of an ITP medication for at least one day during the period Part 2/3 Day 1 to the last dose of study medication + 1 day. | From Baseline to the end of treatment up to Week 31 + 1 day of Part 2/3 |
| Number of Participants Who Required a Protocol-defined Rescue Treatment During Part 2/3 | Rescue treatment was defined as either a new immune (idiopathic) thrombocytopenic purpura (ITP) medication, an increase in the dose of a concomitant ITP medication from Baseline, a platelet transfusion, or a splenectomy. For particpants randomized to placebo in Part 2, Baseline is defined as Week 7 of Part 2. For participants randomized to eltrombopag in Part 2, Baseline is defined as Day 1 of Part 2. Participants randmoized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | From Baseline to the end of treatment up to Week 31 + 1 day of Part2/3 |
| Kids' ITP Tool (KIT) Questionnaire Total Score at Baseline, Week 6, Week 12, and Week 24 as Assessed Using the KIT Questionnaire During the Dose Finding Period, Part 1 | The KIT questionnaire measures the impact on the quality of life determined by the participant and the guardian by self reported outcomes at Baseline or the Screening Visit, after 6 weeks of treatment, after 12 weeks of treatment and at the end of treatment or withdrawal from the study. The KIT total score is calculated from the scores of each of the individual questions from Q1 - Q26 (excluding any answer that is 'Not applicable'). The code list used for the individual question scores is: 1 = never, 2 = seldom, 3 = sometimes, 4 = often, 5 = always and 9 = not applicable. The range of values the total score can take is 0 (worst) to 100 (best). For subjects under the age of six, the family questionnaire (parental proxy) has been used. | Baseline, Week 6, Week 12, and Week 24 of Part 1 |
| Kids' ITP Tool (KIT) Questionnaire Total Score at Baseline and Week 6as Assessed Using the KIT Questionnaire During the Randomized Period, Part 2 | The KIT questionnaire measures the impact on the quality of life determined by the participant and the guardian by self reported outcomes at Baseline or the Screening Visit, after 6 weeks of treatment or withdrawal from the study. The KIT total score is calculated from the scores of each of the individual questions from Q1 - Q26 (excluding any answer that is 'Not applicable'). The code list used for the individual question scores is: 1 = never, 2 = seldom, 3 = sometimes, 4 = often, 5 = always and 9 = not applicable. The range of values the total score can take is 0 (worst) to 100 (best). For subjects under the age of six, the family questionnaire (parental proxy) has been used. | Baseline and Week 6 of Part 2 |
| Kids' ITP Tools (KIT) Questionnaire Total Score at Baseline, Week, 6, Week 12, and End of Treatment Visit as Assessed Using the KIT Questionnaire During the Eltrombopag Open-Label Period, Part 2/3 | The KIT questionnaire measures the impact on the quality of life determined by the participant and the guardian by self reported outcomes at Baseline or the Screening Visit, after 6 weeks of treatment, after 12 weeks of treatment and at the end of treatment or withdrawal from the study. The KIT total score is calculated from the scores of each of the individual questions from Q1 - Q26 (excluding any answer that is 'Not applicable'). The code list used for the individual question scores is: 1=never, 2=seldom, 3=sometimes, 4=often, 5=always and 9=not applicable. The range of values the total score can take is 0 (worst) to 100 (best). For subjects under the age of six, the family questionnaire (parental proxy) has been used. | From Baseline to end of treatment up to Study Week 31 |
| Number of Participants With Any Bleeding, no Clinically Significant Bleeding and Significant Bleeding as Assessed Using the World Health Organization (WHO) Bleeding Scale During Part 2 | The WHO Bleeding Scale is a measure of bleeding severity with the following grades: Grade 0 = no bleeding, Grade 1 = petechiae, Grade 2 = mild blood loss, Grade 3 = gross bleeding and Grade 4 = debilitating blood loss. The WHO grades were dichotomized into the following categories: no bleeding=Grade 0; any bleeding=Grades 1 to 4; no clinically significant bleeding=Grades 0 to 1; clinically significant bleeding=Grades 2 to 4. For participants randomized to Placebo in Part 2, Baseline defined as Week 7 of Part 2. For participants randomized to Eltrombopag in Part 2, Baseline defined as Day 1 of Part 2. | From Baseline through Week 7 of Part 2 |
| Number of Participants With Any Bleeding, no Clinically Significant Bleeding and Significant Bleeding as Assessed Using the World Health Organization (WHO) Bleeding Scale During Part 2/3 | The WHO Bleeding Scale is a measure of bleeding severity with the following grades: Grade 0 = no bleeding, Grade 1 = petechiae, Grade 2 = mild blood loss, Grade 3 = gross bleeding and Grade 4 = debilitating blood loss. The WHO grades were dichotomized into the following categories: no bleeding=Grade 0; any bleeding=Grades 1 to 4; no clinically significant bleeding=Grades 0 to 1; clinically significant bleeding=Grades 2 to 4. For participants randomized to Placebo in Part 2, Baseline defined as Week 7 of Part 2. For participants randomized to Eltrombopag in Part 2, Baseline defined as Day 1 of Part 2. | From Baseline of Part 2/3 through Follow-up |
| Number of Participants With the Indicated Clinical Chemistry Parameter Falling Outside of the Reference Range Any Time Post-Baseline During Part 1, Part 2, and Part 2/3 | Clinical chemistry parameters included: aspartate amino transferase (AST, reference range [RR]: 0-38 International Units per Liter [IU/L]), alkaline phosphatase (ALP: RR: 50 - 375 IU/L), total bilirubin (RR: 3.42 - 22.23 micromoles [umol]/L), albumin grams [g/L], alanine amino transferase (ALT, RR: 5-30 IU/L), prothrombin international normalized ratio (PT INR, RR-0.9 - 1.2), activated partial thromboplastin time (APTT, RR: 24.2 - 32.9 seconds), glucose (RR: 4.107- 6.55018 millimoles [mmol]/L), potassium (3 - 5 mmol/L), and sodium (135 - 143 mmol/L). Baseline values were obtained at Day 1. The number of participants with the indicated clinical chemistry data outside of the reference range (with high and low) any time post-Baseline are presented. Anytime post-Baseline assesments included any scheduled and unscheduled post-Baseline assessment | Post-Baseline from Week 1 through Follow-up up to Study Week 35 |
| Number of Participants With the Indicated Hematology Parameters Falling Outside of the Reference Range at Any Time Post-Baseline During Part 1, Part 2, and Part 2/3 | Hematology parameters included: erythrocytes (RR: 4.2 - 6.1 teragrams per liter [TI/L]), hemoglobin (RR: 125 - 165 g/L), hematocrit (RR: 0.36 - 0.46), platelets (RR: 170 - 430 gigagrams per liter [GI/L]), mean platelet volume (MPV, RR: 4 - 14 femotoliter [fL]), leukocytes (RR: 3.4 - 11.2 GI/L), total neutrophils (RR: 2.1 - 4.9 GI/L), lymphocytes (RR: 1.4 - 2.9 GI/L), monocytes (RR: 0.2 - 0.9 GI/L), eosinophils (RR: 0.2 - 0.7 GI/L), and basophils (RR: 0.02 - 0.12 GI/L). Baseline values were obtained at Day 1. The number of participants with the indicated hematology parameters data outside of the reference range (with high and low) any time post-baseline are presented. Anytime post-Baseline assesments included any scheduled and unscheduled post-Baseline assessment | Post-Baseline from Week 1 through Follow-up up to Study Week 35 |
| Number of Participants With the Indicated Renal Parameters Falling Outside of the Reference Range Any Time Post-Baseline During Part 1, Part 2, and Part 2/3 | Renal parameters included: creatinine (RR: 44.2 - 88.4 umol/L), creatinine clearance derived (RR: 89.0 - 165.0 milliliter per minute [ ml/min]), protein/creatinine (RR: 0.113- 18.0992 microgram per millimoles [mg/mmol]), and urea (RR: 1.785- 8.925 mmol/L). Baseline values were obtained at Day 1. The number of participants with the indicated renal parameters data outside the reference range (with high and low) any time post-Baseline are presented. Anytime post-Baseline assesments included any scheduled and unscheduled post-baseline assessment | Post-Baseline from Week 1 through Follow-up up to Study Week 35 |
| Number of Participants With a Positive Urine Microscopy Parameters Any Time Post-Baseline During Part 1 | Urine microscopy included Red Blood Cell (RBC) casts, white blood cell (WBC) casts, and epithelial renal tubular cell casts. Urine microscopy data was reviewed by the Medical Monitor in order to classify the results as positive or negative. The number of participants with a positive result at any time post Baseline were reported. A positive result indicated if the result was positive for at least one of RBC casts, WBC casts, or epithelial renal tubular cell casts. | From Baseline up to Study Week 24 of Part 1 |
| Number of Participants With a Positive Urine Microscopy Parameters Any Time Post-Baseline During Part 2 | Urine microscopy included Red Blood Cell (RBC) casts, white blood cell (WBC) casts, and epithelial renal tubular cell casts. Urine microscopy data was reviewed by the Medical Monitor in order to classify the results as positive or negative. The nmber of participants with positive finding at Baseline and at anytime post-Baseline (Post-BL) were reported. Baseline was defined as the value obtained at the first visit before treatment (Pre-trt). A positive result indicated if the result was positive for at least one of RBC casts, WBC casts, or epithelial renal tubular cell casts. | From Baseline and post-Baseline up to Study Week 7 of Part 2 |
| Number of Participants With a Positive Urine Microscopy Parameters Any Time Post-Baseline During Part 2/3 | Urine microscopy included Red Blood Cell (RBC) casts, white blood cell (WBC) casts, and epithelial renal tubular cell casts. Urine microscopy data was reviewed by the Medical Monitor in order to classify the results as positive or negative. The number of participants with positive finding at Baseline and at anytime post-Baseline (Post-BL) were reported. Baseline was defined as the value obtained at the first visit before treatment (Pre-trt). A positive result indicated if the result was positive for at least one of RBC casts, WBC casts, or epithelial renal tubular cell casts. Participants randomized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | From Baseline and post-Baseline up to Study Week 31 of Part 2/3 |
| Number of Participants With the Indicated Vital Signs Falling Outside of the Reference Range During Part 1, Part 2, and Part 2/3 | Vital sign assessments included systolic blood pressure (SBP) and diastolic blood pressure (DBP) measurements that were measured before any blood draw at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, at each Follow-up week (Week 1-4) and the maximum post- Baseline (BL) visit. BL is defined as the value obtained on Day 1of treatment. The maximum post-BL visit (MPB) included any scheduled and unscheduled post-BL assessment. Reference ranges (RR) for SBP (mmHg) (Lower limit of normal, normal, Upper limit of normal) for Cohort 1: <85, 85-115, >115; for Cohort 2: <85, 85-120,>120; and Cohort 3: <95, 95-135, >135. RR for DBP (mmHg) for Cohort 1: <45, 45-70,>70; for Cohort 2: <50, 50-75, >75; and Cohort 3: <55, 55-85, >85. | From Baseline through Study Week 35 |
| Mean Respiratory Rate at Baseline and the Maximum Post-Baseline Value Recorded During the Dose-Finding Period, Part 1 | Respiratory rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline value included any scheduled and unscheduled post-Baseline assessment. | From Baseline through Week 24 |
| Mean Respiratory Rate at Baseline and the Maximum Post-Baseline Value Recorded During the Randomized Period, Part 2 | Respiratory rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline value included any scheduled and unscheduled post-Baseline assessment. | From Week 1 to Week 7 of Part 2 |
| Mean Respiratory Rate at Baseline and Maximum Post-Baseline Visit During Part 2/3 | Respiratory rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline visit included any scheduled and unscheduled post-Baseline assessment. Participants randomized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | From Week 1 to Follow-up Week 4 of Part 2/3 up to Study Week 35 |
| Mean Pulse Rate at Baseline and the Maximum Post-Baseline Visit Recorded During the Dose-Finding Period, Part 1 | Pulse rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline (MPB) visit included any scheduled and unscheduled post-Baseline assessment.. | From Week 1 to Follow-up Week 4 of Part 1, up to Study Week 28 |
| Mean Pulse Rate at Baseline and the Maximum Post-Baseline Visit Recorded During the Randomized Period, Part 2 | Pulse rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline visit included any scheduled and unscheduled post-Baseline assessment. | From Week 1 to Week 7 of Part 2 |
| Mean Pulse Rate at Baseline and the Maximum Post-Baseline Visit Recorded During the Eltrombopag Only Period Part 2/3 | Pulse rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline visit included any scheduled and unscheduled post-Baseline assessment. Participants randomized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | From Week 1to Follow-up Week 4 of Part 2/3, up to Study Week 35 |
| Number of Participants for the Indicated Urinalysis Parameters Tested by Dipstick at Baseline and Week 24 During the Dose-Finding Period, Part 1 | Urinalysis parameters included: urine protein (UP), urine glucose (UG), urine ketones (UK), urine occult blood (UOB), and pH. The dipstick test gives results in a semi-quantitative manner. UP was categorized as missing (MS), no result (NR), negative (Neg), Trace, 1+, 2+, 3+ and 4+. UG results were categorized as MS, NR, Neg, normal, 5, 15(1+), 30(2+), 60(3+), 110(4+)UK parameters were categorized as as MS, NR, Neg, Trace(5), Small(15), Moderate(40), Large(80), Large(160). UOB parameters were categorized as MS, NR, Neg, 1+, 2+, 3+, Non haemolysed trace, and haemolysed trace. PH results were categorized as MS. NR, normalresult, Neg, and range of pH (from 5-9in increments of 0.5). Data for indicated parameters was reported at Baseline (BL) and Week 24 (W24). The Baseline value was the measurement taken at Day 1. | Baseline and Week 24 of Part 1 |
| Number of Participants for the Indicated Urinalysis Parameters Tested by Dipstick at Baseline and Week 7 During the Randomized Period,Part 2 | Urinalysis parameters included: urine protein (UP), urine glucose (UG), urine ketones (UK), urine occult blood (UOB), and pH. The dipstick test gives results in a semi-quantitative manner. UP was categorized as missing (MS), no result (NR), negative (Neg), Trace, 1+, 2+, 3+ and 4+. UG results were categorized as MS, NR, Neg, normal, 5, 15(1+), 30(2+), 60(3+), 110(4+)UK parameters were categorized as as MS, NR, Neg, Trace(5), Small(15), Moderate(40), Large(80), Large(160). UOB parameters were categorized as MS, NR, Neg, 1+, 2+, 3+, Non haemolysed trace, and haemolysed trace. PH results were categorized as MS. NR, normalresult, Neg, and range of pH (from 5-9in increments of 0.5). Data for indicated parameters was reported at Baseline (BL) and Week 7 (W7). The Baseline value was the measurement taken at Day 1. | Baseline and Week 7 of Part 2 |
| Number of Participants for the Indicated Urinalysis Parameters Tested by Dipstick at Baseline and Week 24 During the Eltrombopag Open-label Period, Part 2/3 | Urinalysis parameters included: urine protein (UP), urine glucose (UG), urine ketones (UK), urine occult blood (UOB), and pH. The dipstick test gives results in a semi-quantitative manner. UP was categorized as missing (MS), no result (NR), negative (Neg), Trace, 1+, 2+, 3+ and 4+. UG results were categorized as MS, NR, Neg, normal, 5, 15(1+), 30(2+), 60(3+), 110(4+)UK parameters were categorized as as MS, NR, Neg, Trace(5), Small(15), Moderate(40), Large(80), Large(160). UOB parameters were categorized as MS, NR, Neg, 1+, 2+, 3+, Non haemolysed trace, and haemolysed trace. PH results were categorized as MS. NR, normalresult, Neg, and range of pH (from 5-9in increments of 0.5). Data for indicated parameters was reported at Baseline (BL) and Week 24 (W24). The Baseline value was the measurement taken at Day 1. | Baseline and Week 24 of Part 2/3 up to Study Week 31 |
| Number of Participants With Any Adverse Event (AE) or Serious Adverse Event (SAE) During Part 1 | An adverse event (AE) is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A serious adverse event (SAE) is defined as any untoward medical occurrence that, at any dose: results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability or incapacity, or is a congenital anomaly or birth defect. Medical or scientific judgment should be exercised in other situations. | From Treatment + 1 day up to Week 24 of Part1 |
| Number of Participants With Any Adverse Event (AE) or Serious Adverse Event (SAE) During Part 2 | An adverse event (AE) is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A serious adverse event (SAE) is defined as any untoward medical occurrence that, at any dose: results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability or incapacity, or is a congenital anomaly or birth defect. Medical or scientific judgment should be exercised in other situations. | From Treatment + 1 day up to Week 7 of Part 2 |
| Number of Participants With Any Adverse Event (AE) or Serious Adverse Event (SAE) During Part 2/3 | An adverse event (AE) is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A serious adverse event (SAE) is defined as any untoward medical occurrence that, at any dose: results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability or incapacity, or is a congenital anomaly or birth defect. Medical or scientific judgment should be exercised in other situations. | From Treatment + 1 day up to Week 31 of Part2/3 |
| Number of Participants With a Change in Visual Acuity and a Change Due to Worsening of Cataracts During Part 1 | The visual acuity assessment was performed by an ophthalmologist or an optometrist under the guidance of an ophthalmologist. Visual acuity is defined as acuteness or clearness of vision. The number of participants with a change in visual acuity and worsening visual acuity due to cataracts since Baseline are presented for Part 1 Follow-up Visits at 3-months (FU3) and at 6-months (FU6). Change in visual acuity since Baseline is displayed under the left eye but applies to both eyes. Change in visual acuity (VA) is categorized as "yes" or "no". Change due to cataracts is categorized as "yes" or "no". | Baseline, 3and 6-mo Follow-up of Part 1 |
| Number of Participants With a Change in Visual Acuity and a Change Due to Worsening of Cataracts | The visual acuity assessment was performed by an ophthalmologist or an optometrist under the guidance of an ophthalmologist. Visual acuity is defined as acuteness or clearness of vision. Number of participants with a change in visual acuity and change in visual acuity due to the worsening of cataracts since Baseline are presented for Part 2/3 Follow-up Visits at 3-months (FU3) and 6-months (FU6). Change in visual acuity since Baseline is displayed under the left eye but applies to both eyes. Change in visual acuity (VA) is categorized as "yes" or "no". Change due to cataracts is categorized as "yes" or "no". | BL, 3 and 6mo Follow-up of Part 2/3 |
| Orange |
| California |
| 92868 |
| United States |
| GSK Investigational Site | Jacksonville | Florida | 32207 | United States |
| GSK Investigational Site | Orlando | Florida | 32806 | United States |
| GSK Investigational Site | Orlando | Florida | 32827 | United States |
| GSK Investigational Site | Chicago | Illinois | 60611-2605 | United States |
| GSK Investigational Site | Peoria | Illinois | 61614 | United States |
| GSK Investigational Site | Boston | Massachusetts | 02115 | United States |
| GSK Investigational Site | Albuquerque | New Mexico | 87106 | United States |
| GSK Investigational Site | New York | New York | 10021 | United States |
| GSK Investigational Site | Charlotte | North Carolina | 28203 | United States |
| GSK Investigational Site | Durham | North Carolina | 27710 | United States |
| GSK Investigational Site | Cincinnati | Ohio | 45229 | United States |
| GSK Investigational Site | Philadelphia | Pennsylvania | 19104 | United States |
| GSK Investigational Site | Pittsburgh | Pennsylvania | 15224 | United States |
| GSK Investigational Site | Memphis | Tennessee | 38105 | United States |
| GSK Investigational Site | Houston | Texas | 77030 | United States |
| GSK Investigational Site | Seattle | Washington | 98105 | United States |
| GSK Investigational Site | Toronto | Ontario | M5G 1X8 | Canada |
| GSK Investigational Site | Montreal | Quebec | H3T 1C5 | Canada |
| GSK Investigational Site | Bordeaux | 33076 | France |
| GSK Investigational Site | Paris | 75571 | France |
| GSK Investigational Site | Paris | 75935 | France |
| GSK Investigational Site | Rotterdam | 3015 GJ | Netherlands |
| GSK Investigational Site | Barakaldo (Vizcaya) | 48903 | Spain |
| GSK Investigational Site | Barcelona | 08035 | Spain |
| GSK Investigational Site | Madrid | 28009 | Spain |
| GSK Investigational Site | Madrid | 28046 | Spain |
| GSK Investigational Site | Cardiff | CF14 4XW | United Kingdom |
| GSK Investigational Site | London | W2 1NY | United Kingdom |
| GSK Investigational Site | Manchester | M13 9WL | United Kingdom |
| GSK Investigational Site | Newcastle upon Tyne | NE1 4LP | United Kingdom |
| GSK Investigational Site | Southampton | SO16 6YD | United Kingdom |
| 26688484 | Derived | Bussel JB, de Miguel PG, Despotovic JM, Grainger JD, Sevilla J, Blanchette VS, Krishnamurti L, Connor P, David M, Boayue KB, Matthews DC, Lambert MP, Marcello LM, Iyengar M, Chan GW, Chagin KD, Theodore D, Bailey CK, Bakshi KK. Eltrombopag for the treatment of children with persistent and chronic immune thrombocytopenia (PETIT): a randomised, multicentre, placebo-controlled study. Lancet Haematol. 2015 Aug;2(8):e315-25. doi: 10.1016/S2352-3026(15)00114-3. Epub 2015 Jul 28. |
| FG001 | Part 1 (Dose-Finding Period) Cohort 2 | Participants aged between 6 and 11 years received a 24-week Open-Label treatment of eltrombopag administered as a tablet. The starting dose of eltrombopag was based on the body weight. Participants with a weight of <27 kilograms (kg) received 12.5 mg QD (approximately 0.5 - 0.7 mg/kg QD) and participants with a weight of >=27 kg received 25 mg QD (approximately 0.5 - 0.8 mg/kg QD). The maximum dose allowed was 2 mg/kg and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| FG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| FG003 | Part 2 (Randomized Period) Cohort 1-Placebo | Participants aged between 12 and 17 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| FG004 | Part 2 (Randomized Period) Cohort 1- Eltrombopag | Participants aged between 12 and 17 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was 37.5 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| FG005 | Part 2 (Randomized Period) Cohort 2-Placebo | Participants aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| FG006 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Participants aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, participants with a weight of <27 kg received 25 mg QD and participants with a weight of >=27 kg received 50 mg QD. Participants of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and participants with a weight of >=27 kg received 25 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| FG007 | Part 2 (Randomized Period) Cohort 3-Placebo | Participants aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. |
| FG008 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Participants aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Participants of East Asian ancestry began at 0.8 mg/kg/day. The maximum dose allowed was 2 mg/kg, unless otherwise approved by the investigator, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| FG009 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 1 | All participants aged between 12 and 17 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag starting at 37.5 mg QD up to Week 31 of the study. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| FG010 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| FG011 | Part 2/3 (Eltrombopag Open- Label Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| COMPLETED |
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| NOT COMPLETED |
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| Part 2 (7 Week Randomized Period) |
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| Part 2/3(Eltrombopag Open-Label Period) |
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Not provided
| ID | Title | Description |
|---|---|---|
| BG000 | Part 1 Eltrombopag Dose-Finding Period | Participants (par) aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag for 24 weeks. The starting dose for Cohort 1 was 25 mg, and par of East Asian ancestry received 12.5mg QD. For Cohort 2 starting dose was based on the body weight. Par with a bodyweight of <27 kg received 12.5 mg QD, par with a body weight of >=27 kg received 25 mg QD; par of East Asian ancestry with a body weight <27 kg received 12.5 mg QD, and with a body weight of >=27 kg received 25 mg QD. For Cohort 3, the starting dose was 0.7 mg/kg QD and 0.5 mg/kg/day for par of East Asian ancestry and the dose calculations were based on the body weight. The maximum dose allowed for all Cohorts was 75mg daily. For all par, individual dose titration was allowed based upon platelet response. |
| BG001 | Part 2 (Randomized Period) Cohort 1-Placebo | Par aged between 12 and 17 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. All par completing Part 2 of the study received an OL treatment of eltrombopag administered as a tablet in Part 2/3. Par who received placebo in Part 2 received 24 weeks of OL treatment of eltrombopag in Part 2/3 starting at 37.5 mg QD up to Week 31 of the study. The maximum dose allowed was 75 mg daily. All par enrolled in the study underwent individual dose titration based upon platelet response. |
| BG002 | Part 2 (Randomized Period) Cohort 1- Eltrombopag | Par aged between 12 and 17 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was 37.5 mg QD. All par completing Part 2 of the study received an OL treatment of eltrombopag administered as a tablet in Part 2/3. Par who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All par enrolled in the study underwent individual dose titration based upon platelet response. |
| BG003 | Part 2 (Randomized Period) Cohort 2-Placebo | Par aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. All par completing Part 2 of the study received an OL treatment of eltrombopag administered as a tablet in Part 2/3. Par with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Par who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Par with a body weight of <=27 kg received 25 mg QD and par with a body weight of >=27 kg QD received 50 mg QD. The maximum dose allowed was 75 mg daily. All par enrolled in the study underwent individual dose titration based upon platelet response. |
| BG004 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Par aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, par with a weight of <27 kg received 25 mg QD and par with a weight of >=27 kg received 50 mg QD. Par of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and par with a weight of >=27 kg received 25 mg QD. All par completing Part 2 of the study received an OL treatment of eltrombopag administered as a tablet in Part 2/3. Par with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Par who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All par enrolled in the study underwent individual dose titration based upon platelet response. |
| BG005 | Part 2 (Randomized Period) Cohort 3-Placebo | Par aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. All par completing Part 2 of the study received an OL treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Par who received placebo in Part 2 received 24 weeks of OL treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Par of East Asian ancestry received 0.8 mg/kg/day. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| BG006 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Par aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Par of East Asian ancestry began at 0.8 mg/kg/day. All par completing Part 2 of the study received an OL treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Par who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All par enrolled in the study underwent individual dose titration based upon platelet response. |
| BG007 | Total | Total of all reporting groups |
| Units | Counts |
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| Participants |
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| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean | Standard Deviation | Years |
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| Sex: Female, Male | Count of Participants | Participants |
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| Race/Ethnicity, Customized | Number | Participants |
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| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||||||||||||||||||||||||||||||||||
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| Primary | Percentage of Participants Achieving a Platelet Count >=50 Giga Cells Per Liter (Gi/L) at Least Once, Between Day 8 and Day 43 (Weeks 1 to 6) of the Randomized Period of the Study (Part 2) | Participants who achieved a platelet count >=50 Gi/L at least once between Day 8 and Day 43 (first 6 weeks of Part 2) in the absense of rescue treatment were reported. A 95% confidence interval was calculated by the exact binomial method. | Intent-to-Treat (ITT) Population: all enrolled participants during Part 2. The ITT Population was the primary population used for assessing efficacy. Only evaluable participants were considered for analysis where participants with a Baseline platelet count >10Gi/L was considered as evaluable. | Posted | Number | Percentage of Participants | From Day 8 up to Day 43 of Part 2 |
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| Secondary | Percentage of Participants Achieving Platelet Counts >=50Gi/L During Treatment With Eltrombopag in >= 60% of Assessments Between Day 15 and Day 43 (Weeks 2 Through 6) of the Randomized Treatment Period (Part 2) | Sustained platelet response between the treatment groups was assessed by determining the number of participants who achieved a platelet count >=50 Gi/L during treatment with eltrombopag in >= 60% of assessments between Day 15 and Day 43 in the absence of rescue treatment were reported here. | Intent-to-Treat (ITT) Population, only those participants enrolled in Part 2 of this study were analyzed. | Posted | Number | Percentage of Participants | Between Day 15 and Day 43 of Part 2 |
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| Secondary | Weighted Mean Platelet Count | The weighted mean platelet count is defined as the area under the platelet-time curve divided by the duration of the treatment (12 weeks). Based on the Analysis of Covariance (ANCOVA) model, the weighted mean platelet count is the sum of the Baseline count plus the age cohort plus the treatment. Baseline was defined as the platelet count taken on Day 1 or within 48 hours prior to the first dose of treatment. | ITT Population. Only participants during Part 2 with a value at baseline and post-baseline were considered for analysis | Posted | Mean | Standard Deviation | Gi/L | Baseline and Day 43 of Part 2 |
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| Secondary | Percentage of Participants Achieving Platelet Counts >=50Gi/L at Any Time During the 24 Weeks of Eltrombopag Dosing During Part 1. | The percentage of participants achieving platelet counts >=50Gi/L at least once at any time during the 24 weeks of eltrombopag treatment were reported. | ITT Population only those participants enrolled during Part 1 were analyzed. | Posted | Number | Percentage of Participants | From Day 1 of treatment up to Week 24 of Part 1 |
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| Secondary | Percentage of Participants Achieving Platelet Counts >=50 Gi/L at Any Time During the 31 Weeks of Eltrombopag Treatment During Part 2/ 3. | The percentage of participants achieving platelet counts >=50Gi/L at least once at any time during the 24 weeks of eltrombopag treatment during Part 2/3 of the study were reported. Participants randmoized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | ITT Population. Only evaluable participants were included for this analysis, where participants with a baseline platelet count >10 Gi/L was considered as evaluable. | Posted | Number | Percentage of Participants | Part 2/3 up to Study Week 31 |
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| Secondary | Population Pharmacokinetic (PK) Assessment for Eltrombopag for AUC(0-t) During Part 1, 2, and 2/3. | The area under the concentration-time curve over the dosing interval (AUC0-t) data was collected to estimate primary model-based PK parameters. PK samples were collected within 3 hours prior to dosing and 2, 4, 6, 8 and 24 hours after dosing. Doses were normalized to 50mg for comparison. PK samples were collected at each on-treatment visit during Part 1, Part 2, and Part 2/3. The concentration data were pooled across visits to identify population PK and variability parameter estimates and covariate effects. AUC(0-t) is defined as the area under the concentration-time curve over the dosing interval. From the final model, a single value of AUC(0-t) was estimated for each subject, and geometric mean (95% CI) values are presented for each cohort for a 50mg dose. | Pharmacokinetic (PK) population. All subjects who had received at least one dose of the investigational product and provided a PK sample were included in this analysis. | Posted | Geometric Mean | 95% Confidence Interval | Microgram*hour per milliliter (ug*h/mL) | From Day 1 of treatment up to Study Week 31 |
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| Secondary | Population Pharmacokinetic (PK) Assessments for Eltrombopag for Cmax and Ct During Part 1, 2, and 2/3. | The maximum observed concentration (Cmax) and the concentration at the end of the dosing interval (Ct) data were collected to estimate primary model-based PK parameters. PK samples were collected within 3 hours prior to dosing and 2, 4, 6, 8 and 24 hours after dosing. Doses were normalized to 50mg for comparison. PK samples were collected at each on-treatment visit during Part 1, Part 2, and Part 2/3. The concentration data were pooled across visits to identify population PK and variability parameter estimates and covariate effects. From the final model, a single value of Cmax and Ct were estimated for each subject, and geometric mean (95% CI) values are presented for each cohort for a 50mg dose. | Pharmacokinetic (PK) population. All subjects who had received at least one dose of the investigational product and provided a PK sample were included in this analysis. | Posted | Geometric Mean | 95% Confidence Interval | micrograms per milliliter (ug/mL) | From Day 1 of treatment up to Study Week 31 |
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| Secondary | Population Pharmacokinetic (PK) Assessments for Eltrombopag for Tmax During Part 1, 2, and 2/3 | The time to maximum concentration (tmax) was collected to estimate primary model-based PK parameters. PK samples were collected within 3 hours prior to dosing and 2, 4, 6, 8 and 24 hours after dosing. PK samples were collected at each on-treatment visit during Part 1, Part 2, and Part 2/3. The concentration data were pooled across visits to identify population PK and variability parameter estimates and covariate effects. From the final model, a single value of tmax was estimated for each subject, and geometric mean (95% CI) values are presented for each cohort for a 50mg dose. | Pharmacokinetic (PK) population. All subjects who had received at least one dose of the investigational product and provided a PK sample were included in this analysis. | Posted | Median | Full Range | hour (hr) | From Day 1 of treatment up to Study Week 31 |
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| Secondary | Population Pharmacokinetic (PK) Assessments for Eltrombopag for CL/F During Part 1, 2, and 2/3 | The apparent plasma clearance following oral dosing of eltrombopag (CL/F) was collected to estimate primary model-based PK parameters. PK samples were collected within 3 hours prior to dosing and 2, 4, 6, 8 and 24 hours after dosing. PK samples were collected at each on-treatment visit during Part 1, Part 2, and Part 2/3. The concentration data were pooled across visits to identify population PK and variability parameter estimates and covariate effects. From the final model, a single value of CL/F was estimated for each subject, and geometric mean (95% CI) values are presented for each cohort for a 50mg dose. | Pharmacokinetic (PK) population. All subjects who had received at least one dose of the investigational product and provided a PK sample were included in this analysis. | Posted | Geometric Mean | 95% Confidence Interval | liter per hour (L/hr) | From Day 1 of treatment up to Study Week 31 |
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| Secondary | Maximum Duration for Which a Participant Continuously Maintained a Platelet Count of >=50 Gi/L During the 7 Weeks of Eltrombopag Treatment in Part 2 | The maximum duration for which a participant continuously maintained a platelet count >=50 Gi/L in the absence of rescue treatment was calculated and summarized during the 24 weeks of eltrombopag treatment in Part 2. Participants with non-weekly assessments were assumed to have maintained a positive response for each week between two assessments that had positive responses. If a particpant achieved a positive response at an assessment and then achieved a negative response at the next assessment, then it was assumed that the participant had achieved a positive response for one day. Excludes periods from initiation of rescue medication until platelet count falls to below 50Gi/L, irrespective of platelet count | ITT Population, only those participants enrolled in Part 2 were analyzed. The number of participants used to compute the summary statistics reflect the ITT poplation through out the analyses during Part 2. | Posted | Median | Full Range | Weeks | From Baseline through Week 7 of Part 2 |
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| Secondary | Maximum Duration for Which a Participant Continuously Maintained a Platelet Count of >=50 Gi/L During the 24 Weeks of Eltrombopag Treatment in Part 2/ 3 | The maximum duration for which a participant continuously maintained a platelet count >=50 Gi/L in the absence of rescue treatment was calculated and summarized during the 24 weeks of eltrombopag treatment in Part 2/3. Participants with non-weekly assessments were assumed to have maintained a positive response for each week between two assessments that had positive responses. If a particpant achieved a positive response at an assessment and then achieved a negative response at the next assessment, then it was assumed that the participant had achieved a positive response for one day. Participants randmoized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | ITT Population only those participants enrolled in Part 2/3 were analyzed. The number of participants used to compute the summary statistics reflect the ITT poplation through out the analyses during Part 2/3. | Posted | Median | Full Range | Weeks | From Baseline up to Study Week 31 |
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| Secondary | Percentage of Participants Who Reduced or Discontinued Baseline Concomitant Idiopathic Thrombocytopenic Purpura (ITP) Medications During the 24 Weeks of Eltrombopag Treatment During Part 1. | The participants who discontinued (dis) or had a sustained reduction (red) of a Baseline (BL) ITP medication for at least one day during the period of Day 1 of Part 1 to the last dose of study medication +1 day are reported. The denominator is the number of subjects taking an ITP medication at baseline. For participants in Part 1, Baseline is defined as Day 1 of Part 1. A sustained reduction is defined as reduction for 4 weeks or more. An attempted red or dis is a decrease in the dose or frequency from the BL dose or frequency of an ITP medication for at least one day during the period Part 1 Day 1 to the last dose of study medication + 1 day. | ITT Population, only those participants enrolled during Part 1 were analyzed. | Posted | Number | Percentage of Participants | From Baseline up to Week 24+ 1 day of Part 1 |
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| Secondary | Percentage of Participants Who Reduced or Discontinued Baseline Concomitant ITP Medications During the 24 Weeks of Eltrombopag Treatment During Part 2/ 3 | Participants who discontinued (dis) or had a sustained reduction (red) of a Baseline (BL) ITP medication for at least one day during the period of Day 1 of Part 2/3 to the last dose of study medication +1 day are reported. The denominator is the number of subjects taking an ITP medication at baseline. For participants randomized to placebo in Part 2, BL is defined as Week 7 of Part 2. For participants randomized to eltrombopag in Part 2, BL is defined as Day 1 of Part 2. A sustained reduction is defined as reduction for 4 weeks or more. An attempted reduction or discontinuation is a decrease in the dose or frequency from the BL dose or frequency of an ITP medication for at least one day during the period Part 2/3 Day 1 to the last dose of study medication + 1 day. | ITT Population, only those participants enrolled during Part 2/3 were analyzed. | Posted | Number | Percentage of Participants | From Baseline to the end of treatment up to Week 31 + 1 day of Part 2/3 |
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| Secondary | Number of Participants Who Required a Protocol-defined Rescue Treatment During Part 2/3 | Rescue treatment was defined as either a new immune (idiopathic) thrombocytopenic purpura (ITP) medication, an increase in the dose of a concomitant ITP medication from Baseline, a platelet transfusion, or a splenectomy. For particpants randomized to placebo in Part 2, Baseline is defined as Week 7 of Part 2. For participants randomized to eltrombopag in Part 2, Baseline is defined as Day 1 of Part 2. Participants randmoized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | ITT Population, only those participants enrolled during Part 2/3 were analyzed. | Posted | Number | Participants | From Baseline to the end of treatment up to Week 31 + 1 day of Part2/3 |
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| Secondary | Kids' ITP Tool (KIT) Questionnaire Total Score at Baseline, Week 6, Week 12, and Week 24 as Assessed Using the KIT Questionnaire During the Dose Finding Period, Part 1 | The KIT questionnaire measures the impact on the quality of life determined by the participant and the guardian by self reported outcomes at Baseline or the Screening Visit, after 6 weeks of treatment, after 12 weeks of treatment and at the end of treatment or withdrawal from the study. The KIT total score is calculated from the scores of each of the individual questions from Q1 - Q26 (excluding any answer that is 'Not applicable'). The code list used for the individual question scores is: 1 = never, 2 = seldom, 3 = sometimes, 4 = often, 5 = always and 9 = not applicable. The range of values the total score can take is 0 (worst) to 100 (best). For subjects under the age of six, the family questionnaire (parental proxy) has been used. | ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the ITT Population. | Posted | Mean | Standard Deviation | Score on scale | Baseline, Week 6, Week 12, and Week 24 of Part 1 |
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| Secondary | Kids' ITP Tool (KIT) Questionnaire Total Score at Baseline and Week 6as Assessed Using the KIT Questionnaire During the Randomized Period, Part 2 | The KIT questionnaire measures the impact on the quality of life determined by the participant and the guardian by self reported outcomes at Baseline or the Screening Visit, after 6 weeks of treatment or withdrawal from the study. The KIT total score is calculated from the scores of each of the individual questions from Q1 - Q26 (excluding any answer that is 'Not applicable'). The code list used for the individual question scores is: 1 = never, 2 = seldom, 3 = sometimes, 4 = often, 5 = always and 9 = not applicable. The range of values the total score can take is 0 (worst) to 100 (best). For subjects under the age of six, the family questionnaire (parental proxy) has been used. | ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the ITT Population. | Posted | Mean | Standard Deviation | Score on scale | Baseline and Week 6 of Part 2 |
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| Secondary | Kids' ITP Tools (KIT) Questionnaire Total Score at Baseline, Week, 6, Week 12, and End of Treatment Visit as Assessed Using the KIT Questionnaire During the Eltrombopag Open-Label Period, Part 2/3 | The KIT questionnaire measures the impact on the quality of life determined by the participant and the guardian by self reported outcomes at Baseline or the Screening Visit, after 6 weeks of treatment, after 12 weeks of treatment and at the end of treatment or withdrawal from the study. The KIT total score is calculated from the scores of each of the individual questions from Q1 - Q26 (excluding any answer that is 'Not applicable'). The code list used for the individual question scores is: 1=never, 2=seldom, 3=sometimes, 4=often, 5=always and 9=not applicable. The range of values the total score can take is 0 (worst) to 100 (best). For subjects under the age of six, the family questionnaire (parental proxy) has been used. | ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the ITT Population. | Posted | Mean | Standard Deviation | Score on scale | From Baseline to end of treatment up to Study Week 31 |
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| Secondary | Number of Participants With Any Bleeding, no Clinically Significant Bleeding and Significant Bleeding as Assessed Using the World Health Organization (WHO) Bleeding Scale During Part 2 | The WHO Bleeding Scale is a measure of bleeding severity with the following grades: Grade 0 = no bleeding, Grade 1 = petechiae, Grade 2 = mild blood loss, Grade 3 = gross bleeding and Grade 4 = debilitating blood loss. The WHO grades were dichotomized into the following categories: no bleeding=Grade 0; any bleeding=Grades 1 to 4; no clinically significant bleeding=Grades 0 to 1; clinically significant bleeding=Grades 2 to 4. For participants randomized to Placebo in Part 2, Baseline defined as Week 7 of Part 2. For participants randomized to Eltrombopag in Part 2, Baseline defined as Day 1 of Part 2. | ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the ITT Population. | Posted | Number | Participants | From Baseline through Week 7 of Part 2 |
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| Secondary | Number of Participants With Any Bleeding, no Clinically Significant Bleeding and Significant Bleeding as Assessed Using the World Health Organization (WHO) Bleeding Scale During Part 2/3 | The WHO Bleeding Scale is a measure of bleeding severity with the following grades: Grade 0 = no bleeding, Grade 1 = petechiae, Grade 2 = mild blood loss, Grade 3 = gross bleeding and Grade 4 = debilitating blood loss. The WHO grades were dichotomized into the following categories: no bleeding=Grade 0; any bleeding=Grades 1 to 4; no clinically significant bleeding=Grades 0 to 1; clinically significant bleeding=Grades 2 to 4. For participants randomized to Placebo in Part 2, Baseline defined as Week 7 of Part 2. For participants randomized to Eltrombopag in Part 2, Baseline defined as Day 1 of Part 2. | ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the ITT Population. | Posted | Number | Participants | From Baseline of Part 2/3 through Follow-up |
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| Secondary | Number of Participants With the Indicated Clinical Chemistry Parameter Falling Outside of the Reference Range Any Time Post-Baseline During Part 1, Part 2, and Part 2/3 | Clinical chemistry parameters included: aspartate amino transferase (AST, reference range [RR]: 0-38 International Units per Liter [IU/L]), alkaline phosphatase (ALP: RR: 50 - 375 IU/L), total bilirubin (RR: 3.42 - 22.23 micromoles [umol]/L), albumin grams [g/L], alanine amino transferase (ALT, RR: 5-30 IU/L), prothrombin international normalized ratio (PT INR, RR-0.9 - 1.2), activated partial thromboplastin time (APTT, RR: 24.2 - 32.9 seconds), glucose (RR: 4.107- 6.55018 millimoles [mmol]/L), potassium (3 - 5 mmol/L), and sodium (135 - 143 mmol/L). Baseline values were obtained at Day 1. The number of participants with the indicated clinical chemistry data outside of the reference range (with high and low) any time post-Baseline are presented. Anytime post-Baseline assesments included any scheduled and unscheduled post-Baseline assessment | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the Safety Population. | Posted | Number | Participants | Post-Baseline from Week 1 through Follow-up up to Study Week 35 |
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| Secondary | Number of Participants With the Indicated Hematology Parameters Falling Outside of the Reference Range at Any Time Post-Baseline During Part 1, Part 2, and Part 2/3 | Hematology parameters included: erythrocytes (RR: 4.2 - 6.1 teragrams per liter [TI/L]), hemoglobin (RR: 125 - 165 g/L), hematocrit (RR: 0.36 - 0.46), platelets (RR: 170 - 430 gigagrams per liter [GI/L]), mean platelet volume (MPV, RR: 4 - 14 femotoliter [fL]), leukocytes (RR: 3.4 - 11.2 GI/L), total neutrophils (RR: 2.1 - 4.9 GI/L), lymphocytes (RR: 1.4 - 2.9 GI/L), monocytes (RR: 0.2 - 0.9 GI/L), eosinophils (RR: 0.2 - 0.7 GI/L), and basophils (RR: 0.02 - 0.12 GI/L). Baseline values were obtained at Day 1. The number of participants with the indicated hematology parameters data outside of the reference range (with high and low) any time post-baseline are presented. Anytime post-Baseline assesments included any scheduled and unscheduled post-Baseline assessment | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the Safety Population. | Posted | Number | Participants | Post-Baseline from Week 1 through Follow-up up to Study Week 35 |
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| Secondary | Number of Participants With the Indicated Renal Parameters Falling Outside of the Reference Range Any Time Post-Baseline During Part 1, Part 2, and Part 2/3 | Renal parameters included: creatinine (RR: 44.2 - 88.4 umol/L), creatinine clearance derived (RR: 89.0 - 165.0 milliliter per minute [ ml/min]), protein/creatinine (RR: 0.113- 18.0992 microgram per millimoles [mg/mmol]), and urea (RR: 1.785- 8.925 mmol/L). Baseline values were obtained at Day 1. The number of participants with the indicated renal parameters data outside the reference range (with high and low) any time post-Baseline are presented. Anytime post-Baseline assesments included any scheduled and unscheduled post-baseline assessment | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the Safety Population. | Posted | Number | Participants | Post-Baseline from Week 1 through Follow-up up to Study Week 35 |
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| Secondary | Number of Participants With a Positive Urine Microscopy Parameters Any Time Post-Baseline During Part 1 | Urine microscopy included Red Blood Cell (RBC) casts, white blood cell (WBC) casts, and epithelial renal tubular cell casts. Urine microscopy data was reviewed by the Medical Monitor in order to classify the results as positive or negative. The number of participants with a positive result at any time post Baseline were reported. A positive result indicated if the result was positive for at least one of RBC casts, WBC casts, or epithelial renal tubular cell casts. | Safety Population, only those participants enrolled during Part 1 were analyzed. | Posted | Number | Participants | From Baseline up to Study Week 24 of Part 1 |
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| Secondary | Number of Participants With a Positive Urine Microscopy Parameters Any Time Post-Baseline During Part 2 | Urine microscopy included Red Blood Cell (RBC) casts, white blood cell (WBC) casts, and epithelial renal tubular cell casts. Urine microscopy data was reviewed by the Medical Monitor in order to classify the results as positive or negative. The nmber of participants with positive finding at Baseline and at anytime post-Baseline (Post-BL) were reported. Baseline was defined as the value obtained at the first visit before treatment (Pre-trt). A positive result indicated if the result was positive for at least one of RBC casts, WBC casts, or epithelial renal tubular cell casts. | Safety Population, only those participants enrolled during Part 2 were analyzed. | Posted | Number | Participants | From Baseline and post-Baseline up to Study Week 7 of Part 2 |
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| Secondary | Number of Participants With a Positive Urine Microscopy Parameters Any Time Post-Baseline During Part 2/3 | Urine microscopy included Red Blood Cell (RBC) casts, white blood cell (WBC) casts, and epithelial renal tubular cell casts. Urine microscopy data was reviewed by the Medical Monitor in order to classify the results as positive or negative. The number of participants with positive finding at Baseline and at anytime post-Baseline (Post-BL) were reported. Baseline was defined as the value obtained at the first visit before treatment (Pre-trt). A positive result indicated if the result was positive for at least one of RBC casts, WBC casts, or epithelial renal tubular cell casts. Participants randomized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | Safety Population, only those participants enrolled during Part 2/3 were analyzed. | Posted | Number | Participants | From Baseline and post-Baseline up to Study Week 31 of Part 2/3 |
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| Secondary | Number of Participants With the Indicated Vital Signs Falling Outside of the Reference Range During Part 1, Part 2, and Part 2/3 | Vital sign assessments included systolic blood pressure (SBP) and diastolic blood pressure (DBP) measurements that were measured before any blood draw at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, at each Follow-up week (Week 1-4) and the maximum post- Baseline (BL) visit. BL is defined as the value obtained on Day 1of treatment. The maximum post-BL visit (MPB) included any scheduled and unscheduled post-BL assessment. Reference ranges (RR) for SBP (mmHg) (Lower limit of normal, normal, Upper limit of normal) for Cohort 1: <85, 85-115, >115; for Cohort 2: <85, 85-120,>120; and Cohort 3: <95, 95-135, >135. RR for DBP (mmHg) for Cohort 1: <45, 45-70,>70; for Cohort 2: <50, 50-75, >75; and Cohort 3: <55, 55-85, >85. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the Safety Population. | Posted | Number | Participants | From Baseline through Study Week 35 |
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| Secondary | Mean Respiratory Rate at Baseline and the Maximum Post-Baseline Value Recorded During the Dose-Finding Period, Part 1 | Respiratory rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline value included any scheduled and unscheduled post-Baseline assessment. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the Safety Population . | Posted | Mean | Standard Deviation | Breaths per min | From Baseline through Week 24 |
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| Secondary | Mean Respiratory Rate at Baseline and the Maximum Post-Baseline Value Recorded During the Randomized Period, Part 2 | Respiratory rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline value included any scheduled and unscheduled post-Baseline assessment. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X,X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the safety Population | Posted | Mean | Standard Deviation | Breaths per min | From Week 1 to Week 7 of Part 2 |
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| Secondary | Mean Respiratory Rate at Baseline and Maximum Post-Baseline Visit During Part 2/3 | Respiratory rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline visit included any scheduled and unscheduled post-Baseline assessment. Participants randomized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the Safety Population. | Posted | Mean | Standard Deviation | Breaths per minute | From Week 1 to Follow-up Week 4 of Part 2/3 up to Study Week 35 |
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| Secondary | Mean Pulse Rate at Baseline and the Maximum Post-Baseline Visit Recorded During the Dose-Finding Period, Part 1 | Pulse rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline (MPB) visit included any scheduled and unscheduled post-Baseline assessment.. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the Safety Population | Posted | Mean | Standard Deviation | Beats per minute | From Week 1 to Follow-up Week 4 of Part 1, up to Study Week 28 |
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| Secondary | Mean Pulse Rate at Baseline and the Maximum Post-Baseline Visit Recorded During the Randomized Period, Part 2 | Pulse rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline visit included any scheduled and unscheduled post-Baseline assessment. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the ITT Population. | Posted | Mean | Standard Deviation | Beats per minute | From Week 1 to Week 7 of Part 2 |
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| Secondary | Mean Pulse Rate at Baseline and the Maximum Post-Baseline Visit Recorded During the Eltrombopag Only Period Part 2/3 | Pulse rate was measured at the following scheduled time points: Screening, Day 1, each week from Week 1 to Week 24, and at each Follow-up Weeks 1-4. Baseline is defined as the value obtained on Day 1 of treatment. The maximum post-Baseline visit included any scheduled and unscheduled post-Baseline assessment. Participants randomized to receive eltrombopag for 7 weeks in Part 2 continued receiving eltrombopag for an additional 17 weeks in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 24. Participants randomized to receive placebo for 7 weeks in Part 2, received 24 weeks of eltrombopag in Part 2/3 (for a total of 24 weeks of treatment) up to Study Week 31. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the safety Population. | Posted | Mean | Standard Deviation | Beats per minute | From Week 1to Follow-up Week 4 of Part 2/3, up to Study Week 35 |
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| Secondary | Number of Participants for the Indicated Urinalysis Parameters Tested by Dipstick at Baseline and Week 24 During the Dose-Finding Period, Part 1 | Urinalysis parameters included: urine protein (UP), urine glucose (UG), urine ketones (UK), urine occult blood (UOB), and pH. The dipstick test gives results in a semi-quantitative manner. UP was categorized as missing (MS), no result (NR), negative (Neg), Trace, 1+, 2+, 3+ and 4+. UG results were categorized as MS, NR, Neg, normal, 5, 15(1+), 30(2+), 60(3+), 110(4+)UK parameters were categorized as as MS, NR, Neg, Trace(5), Small(15), Moderate(40), Large(80), Large(160). UOB parameters were categorized as MS, NR, Neg, 1+, 2+, 3+, Non haemolysed trace, and haemolysed trace. PH results were categorized as MS. NR, normalresult, Neg, and range of pH (from 5-9in increments of 0.5). Data for indicated parameters was reported at Baseline (BL) and Week 24 (W24). The Baseline value was the measurement taken at Day 1. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the safety Population. | Posted | Number | Participants | Baseline and Week 24 of Part 1 |
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| Secondary | Number of Participants for the Indicated Urinalysis Parameters Tested by Dipstick at Baseline and Week 7 During the Randomized Period,Part 2 | Urinalysis parameters included: urine protein (UP), urine glucose (UG), urine ketones (UK), urine occult blood (UOB), and pH. The dipstick test gives results in a semi-quantitative manner. UP was categorized as missing (MS), no result (NR), negative (Neg), Trace, 1+, 2+, 3+ and 4+. UG results were categorized as MS, NR, Neg, normal, 5, 15(1+), 30(2+), 60(3+), 110(4+)UK parameters were categorized as as MS, NR, Neg, Trace(5), Small(15), Moderate(40), Large(80), Large(160). UOB parameters were categorized as MS, NR, Neg, 1+, 2+, 3+, Non haemolysed trace, and haemolysed trace. PH results were categorized as MS. NR, normalresult, Neg, and range of pH (from 5-9in increments of 0.5). Data for indicated parameters was reported at Baseline (BL) and Week 7 (W7). The Baseline value was the measurement taken at Day 1. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X,X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the safety Population | Posted | Number | Participants | Baseline and Week 7 of Part 2 |
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| Secondary | Number of Participants for the Indicated Urinalysis Parameters Tested by Dipstick at Baseline and Week 24 During the Eltrombopag Open-label Period, Part 2/3 | Urinalysis parameters included: urine protein (UP), urine glucose (UG), urine ketones (UK), urine occult blood (UOB), and pH. The dipstick test gives results in a semi-quantitative manner. UP was categorized as missing (MS), no result (NR), negative (Neg), Trace, 1+, 2+, 3+ and 4+. UG results were categorized as MS, NR, Neg, normal, 5, 15(1+), 30(2+), 60(3+), 110(4+)UK parameters were categorized as as MS, NR, Neg, Trace(5), Small(15), Moderate(40), Large(80), Large(160). UOB parameters were categorized as MS, NR, Neg, 1+, 2+, 3+, Non haemolysed trace, and haemolysed trace. PH results were categorized as MS. NR, normalresult, Neg, and range of pH (from 5-9in increments of 0.5). Data for indicated parameters was reported at Baseline (BL) and Week 24 (W24). The Baseline value was the measurement taken at Day 1. | Safety Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed at different time points, so the overall number of participants analyzed reflects everyone in the safety population | Posted | Number | Participants | Baseline and Week 24 of Part 2/3 up to Study Week 31 |
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| Secondary | Number of Participants With Any Adverse Event (AE) or Serious Adverse Event (SAE) During Part 1 | An adverse event (AE) is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A serious adverse event (SAE) is defined as any untoward medical occurrence that, at any dose: results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability or incapacity, or is a congenital anomaly or birth defect. Medical or scientific judgment should be exercised in other situations. | Safety Population: all participants who received at least one dose of the investigational product during Part 1 were analyzed. | Posted | Number | Participants | From Treatment + 1 day up to Week 24 of Part1 |
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| Secondary | Number of Participants With Any Adverse Event (AE) or Serious Adverse Event (SAE) During Part 2 | An adverse event (AE) is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A serious adverse event (SAE) is defined as any untoward medical occurrence that, at any dose: results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability or incapacity, or is a congenital anomaly or birth defect. Medical or scientific judgment should be exercised in other situations. | Safety Population: all participants who received at least one dose of the investigational product during Part 2 were analyzed. | Posted | Number | Participants | From Treatment + 1 day up to Week 7 of Part 2 |
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| Secondary | Number of Participants With Any Adverse Event (AE) or Serious Adverse Event (SAE) During Part 2/3 | An adverse event (AE) is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A serious adverse event (SAE) is defined as any untoward medical occurrence that, at any dose: results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability or incapacity, or is a congenital anomaly or birth defect. Medical or scientific judgment should be exercised in other situations. | Safety Population: all participants who received at least one dose of the investigational product during Part 2/3 were analyzed | Posted | Number | Participants | From Treatment + 1 day up to Week 31 of Part2/3 |
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| Secondary | Number of Participants With a Change in Visual Acuity and a Change Due to Worsening of Cataracts During Part 1 | The visual acuity assessment was performed by an ophthalmologist or an optometrist under the guidance of an ophthalmologist. Visual acuity is defined as acuteness or clearness of vision. The number of participants with a change in visual acuity and worsening visual acuity due to cataracts since Baseline are presented for Part 1 Follow-up Visits at 3-months (FU3) and at 6-months (FU6). Change in visual acuity since Baseline is displayed under the left eye but applies to both eyes. Change in visual acuity (VA) is categorized as "yes" or "no". Change due to cataracts is categorized as "yes" or "no". | Safety Population: all subjects who have received at least one dose of the investigational product during Part 1 were analyzed. | Posted | Number | Participants | Baseline, 3and 6-mo Follow-up of Part 1 |
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| Secondary | Number of Participants With a Change in Visual Acuity and a Change Due to Worsening of Cataracts | The visual acuity assessment was performed by an ophthalmologist or an optometrist under the guidance of an ophthalmologist. Visual acuity is defined as acuteness or clearness of vision. Number of participants with a change in visual acuity and change in visual acuity due to the worsening of cataracts since Baseline are presented for Part 2/3 Follow-up Visits at 3-months (FU3) and 6-months (FU6). Change in visual acuity since Baseline is displayed under the left eye but applies to both eyes. Change in visual acuity (VA) is categorized as "yes" or "no". Change due to cataracts is categorized as "yes" or "no". | Safety Population: all subjects who have received at least one dose of the investigational product during Part 2/3 were analyzed. | Posted | Number | Participants | BL, 3 and 6mo Follow-up of Part 2/3 |
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On-treatment adverse events (AEs) and serious adverse events (SAEs) are defined as events occuring from the start of the investigational product until the end of treatment (up to Study Week 31)
SAEs and non-serious AEs were collected in members of the Safety Population, comprised of all participants who had received at least one dose of the investigational product.
Not provided
| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Part 1 (Dose-Finding Period) | Participants aged between 1 and 17 years (Cohort 1 age group- 12 to 17 years, Cohort 2- 6 to 11 years and Cohort 3-1 to 5 years) received eltrombopag for 24 weeks. The starting dose for cohort 1 was eltrombopag 25 mg, (East Asian ancestry: 12.5mg, QD). For cohort 2 starting dose was based on the body weight (Weight <27 kg: 25 mg QD, Weight >=27 kg: 50 mg QD; east Asian ancestry subjects Weight <27 kg: 12.5 mg QD, Weight >=27 kg: 25 mg QD). For cohort 1 and 2 maximum dose allowed was 75mg. For cohort 3 starting dose was 0.7 mg/kg, QD and the dose calculations were based on the body weight. For all participants individual dose titration was allowed based upon platelet response. | 2 | 15 | 15 | 15 | ||
| EG001 | Part 2 (Randomized Period) -Placebo | Participants aged between 1 and 17 years (Cohort 1 age group- 12 to 17 years, Cohort 2- 6 to 11 years and Cohort 3- 1 to 5 years) received eltrombopag matching placebo for 7 weeks. | 2 | 21 | 20 | 21 | ||
| EG002 | Part 2 (Randomized Period) - Eltrombopag | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag for 7 weeks. The starting dose for Cohort 1 was 37.5 mg QD. For Cohort 2, starting dose was based on the body weight. Par with a body weight of <27 kg received 25 mg QD, and par with a body weight of >=27 kg received 50 mg QD. Par of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD, and with a body weight of >=27 kg received 25 mg QD. For Cohort 3, the starting dose was 1.5 mg/kg QD and 0.8 mg/kg/day for par of East Asian ancestry. The maximum dose allowed was 2mg/kg and could not exceed 75 mg daily. For all par, individual dose titration was allowed based upon platelet response. | 4 | 44 | 36 | 44 | ||
| EG003 | Part 2/ 3 (Eltrombopag Open-Label Period) | Par aged between 1 and 17 years (Cohort 1 age group- 12 to 17 years, Cohort 2- 6 to 11 years and Cohort 3-1 to 5 years), completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet or dry powder for oral suspension in Part 2/3. Par who received eltrombopag during the Randomized Period continued on the same dose unless adjustments were warranted according to the dosing guidelines. Par who received placebo during the Randomized Period followed the starting doses for each age Cohort specified for Part 2. | 8 | 65 | 62 | 65 |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Neutropenia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Epistaxis | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Anaemia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Febrile neutropenia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Pyrexia | General disorders | MedDRA | Systematic Assessment |
| |
| Urinary tract infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Impetigo | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Varicella | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Conjunctivitis | Eye disorders | MedDRA | Systematic Assessment |
| |
| Lenticular opacities | Eye disorders | MedDRA | Systematic Assessment |
| |
| Vitreous opacities | Eye disorders | MedDRA | Systematic Assessment |
| |
| Alanine aminotransferase increased | Investigations | MedDRA | Systematic Assessment |
|
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Vomiting | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Diarrhoea | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Abdominal pain | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Abdominal pain upper | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Toothache | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Gingival bleeding | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Haematochezia | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Nausea | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Stomatitis | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Abdominal discomfort | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Breath odour | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Constipation | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Dyspepsia | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Oral pain | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Mouth ulceration | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Mouth haemorrhage | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Tongue discolouration | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Abdominal distension | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Anal ulcer | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Melaena | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Tooth loss | Gastrointestinal disorders | MedDRA | Systematic Assessment |
| |
| Upper respiratory tract infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Nasopharyngitis | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Viral upper respiratory tract infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Gastroenteritis | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Lower respiratory tract infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Molluscum contagiosum | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Otitis media | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Respiratory tract infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Skin infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Tonsillitis | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Viral pharyngitis | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Herpes simplex | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Lobar pneumonia | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Nail infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Otitis externa | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Pharyngitis streptococcal | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Pharyngotonsillitis | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Tonsillitis bacterial | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Urinary tract infections | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Viral infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Influenza | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Rhinitis | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Vulvovaginal mycotic infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Ear infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Pharyngitis | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Sinusitis | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Candida infection | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Gastroenteritis viral | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Gastrointestinal pain | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Herpes zoster | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Oral herpes | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Pneumonia | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Headache | Nervous system disorders | MedDRA | Systematic Assessment |
| |
| Paraesthesia | Nervous system disorders | MedDRA | Systematic Assessment |
| |
| Dizziness | Nervous system disorders | MedDRA | Systematic Assessment |
| |
| Hypersomnia | Nervous system disorders | MedDRA | Systematic Assessment |
| |
| Migraine | Nervous system disorders | MedDRA | Systematic Assessment |
| |
| Sinus headache | Nervous system disorders | MedDRA | Systematic Assessment |
| |
| Epistaxis | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Cough | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Oropharyngeal pain | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Sneezing | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Rhinorrhoea | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Nasal congestion | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Rhinitis allergic | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Bronchospasm | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Dyspnoea | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Nasal discharge discolouration | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Upper respiratory tract congestion | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Wheezing | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
| |
| Animal bite | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Fall | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Injury | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Laceration | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Concussion | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Contusion | Infections and infestations | MedDRA | Systematic Assessment |
| |
| Incision site pruritus | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Periorbital contusion | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Tooth fracture | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Wound haemorrhage | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Excoriation | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Joint injury | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Limb injury | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Wrist fracture | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Head injury | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Ligament sprain | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Post procedural haemorrhage | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Upper limb fracture | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
| |
| Acne | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Pruritus | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Rash | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Petechiae | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Blister | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Eczema | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Erythema multiforme | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Rash papular | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Skin haemorrhage | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Skin hyperpigmentation | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Rash pruritic | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Urticaria | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Alopecia | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Dermatitis allergic | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Dry skin | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Erythema | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Pityriasis rosea | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Rash macular | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Swelling face | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
| |
| Blood glucose decreased | Investigations | MedDRA | Systematic Assessment |
| |
| Weight increased | Investigations | MedDRA | Systematic Assessment |
| |
| White blood cell count decreased | Investigations | MedDRA | Systematic Assessment |
| |
| Activated partial thromboplastin time prolonged | Investigations | MedDRA | Systematic Assessment |
| |
| Blood creatinine increased | Investigations | MedDRA | Systematic Assessment |
| |
| Blood urea increased | Investigations | MedDRA | Systematic Assessment |
| |
| Alanine aminotransferase increased | Investigations | MedDRA | Systematic Assessment |
| |
| Blood albumin decreased | Investigations | MedDRA | Systematic Assessment |
| |
| Blood fibrinogen decreased | Investigations | MedDRA | Systematic Assessment |
| |
| Haemoglobin decreased | Investigations | MedDRA | Systematic Assessment |
| |
| Neutrophil count decreased | Investigations | MedDRA | Systematic Assessment |
| |
| Prothrombin time prolonged | Investigations | MedDRA | Systematic Assessment |
| |
| Transaminases increased | Investigations | MedDRA | Systematic Assessment |
| |
| Weight decreased | Investigations | MedDRA | Systematic Assessment |
| |
| Dysmenorrhoea | Reproductive system and breast disorders | MedDRA | Systematic Assessment |
| |
| Menorrhagia | Reproductive system and breast disorders | MedDRA | Systematic Assessment |
| |
| Metrorrhagia | Reproductive system and breast disorders | MedDRA | Systematic Assessment |
| |
| Uterine pain | Reproductive system and breast disorders | MedDRA | Systematic Assessment |
| |
| Vulvovaginal erythema | Reproductive system and breast disorders | MedDRA | Systematic Assessment |
| |
| Vulvovaginal pruritus | Reproductive system and breast disorders | MedDRA | Systematic Assessment |
| |
| Astigmatism | Eye disorders | MedDRA | Systematic Assessment |
| |
| Eyelid oedema | Eye disorders | MedDRA | Systematic Assessment |
| |
| Ocular hyperaemia | Eye disorders | MedDRA | Systematic Assessment |
| |
| Conjunctivitis | Eye disorders | MedDRA | Systematic Assessment |
| |
| Vision blurred | Eye disorders | MedDRA | Systematic Assessment |
| |
| Asthenia | General disorders | MedDRA | Systematic Assessment |
| |
| Pyrexia | General disorders | MedDRA | Systematic Assessment |
| |
| Fatigue | General disorders | MedDRA | Systematic Assessment |
| |
| Malaise | General disorders | MedDRA | Systematic Assessment |
| |
| Mucosal haemorrhage | General disorders | MedDRA | Systematic Assessment |
| |
| Pain | General disorders | MedDRA | Systematic Assessment |
| |
| Adverse drug reaction | General disorders | MedDRA | Systematic Assessment |
| |
| Influenza like illness | General disorders | MedDRA | Systematic Assessment |
| |
| Local swelling | General disorders | MedDRA | Systematic Assessment |
| |
| Feeling jittery | General disorders | MedDRA | Systematic Assessment |
| |
| Pain in extremity | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Arthralgia | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Back pain | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Musculoskeletal discomfort | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Musculoskeletal pain | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Neck pain | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Pain in jaw | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Joint effusion | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Muscular weakness | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Myalgia | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
| |
| Middle insomnia | Psychiatric disorders | MedDRA | Systematic Assessment |
| |
| Agitation | Psychiatric disorders | MedDRA | Systematic Assessment |
| |
| Anxiety | Psychiatric disorders | MedDRA | Systematic Assessment |
| |
| Initial insomnia | Psychiatric disorders | MedDRA | Systematic Assessment |
| |
| Nightmare | Psychiatric disorders | MedDRA | Systematic Assessment |
| |
| Tic | Psychiatric disorders | MedDRA | Systematic Assessment |
| |
| Insomnia | Psychiatric disorders | MedDRA | Systematic Assessment |
| |
| Restlessness | Psychiatric disorders | MedDRA | Systematic Assessment |
| |
| Ear pain | Ear and labyrinth disorders | MedDRA | Systematic Assessment |
| |
| Tympanic membrane perforation | Ear and labyrinth disorders | MedDRA | Systematic Assessment |
| |
| Haematotympanum | Ear and labyrinth disorders | MedDRA | Systematic Assessment |
| |
| Otorrhoea | Ear and labyrinth disorders | MedDRA | Systematic Assessment |
| |
| Leukopenia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Lymphopenia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Neutropenia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Thrombocytosis | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Thrombocytopenia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Anaemia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Coagulopathy | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Granulocytopenia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Haemolytic anaemia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Iron deficiency anaemia | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Lymphadenopathy | Blood and lymphatic system disorders | MedDRA | Systematic Assessment |
| |
| Dehydration | Metabolism and nutrition disorders | MedDRA | Systematic Assessment |
| |
| Hypoalbuminaemia | Metabolism and nutrition disorders | MedDRA | Systematic Assessment |
| |
| Iron deficiency | Metabolism and nutrition disorders | MedDRA | Systematic Assessment |
| |
| Hyperglycaemia | Metabolism and nutrition disorders | MedDRA | Systematic Assessment |
| |
| Hyperkalaemia | Metabolism and nutrition disorders | MedDRA | Systematic Assessment |
| |
| Hypokalaemia | Metabolism and nutrition disorders | MedDRA | Systematic Assessment |
| |
| Dysuria | Renal and urinary disorders | MedDRA | Systematic Assessment |
| |
| Enuresis | Renal and urinary disorders | MedDRA | Systematic Assessment |
| |
| Decreased appetite | Renal and urinary disorders | MedDRA | Systematic Assessment |
| |
| Proteinuria | Renal and urinary disorders | MedDRA | Systematic Assessment |
| |
| Hypertension | Vascular disorders | MedDRA | Systematic Assessment |
| |
| Flushing | Vascular disorders | MedDRA | Systematic Assessment |
| |
| Haematoma | Vascular disorders | MedDRA | Systematic Assessment |
| |
| Hot flush | Vascular disorders | MedDRA | Systematic Assessment |
| |
| Hyperbilirubinaemia | Hepatobiliary disorders | MedDRA | Systematic Assessment |
| |
| Seasonal allergy | Immune system disorders | MedDRA | Systematic Assessment |
| |
| Drug hypersensitivity | Immune system disorders | MedDRA | Systematic Assessment |
| |
| Hypersensitivity | Immune system disorders | MedDRA | Systematic Assessment |
|
GSK agreements may vary with individual investigators, but will not prohibit any investigator from publishing. GSK supports the publication of results from all centers of a multi-center trial but requests that reports based on single-site data not precede the primary publication of the entire clinical trial.
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| GSK Response Center | GlaxoSmithKline | 866-435-7343 |
| ID | Term |
|---|---|
| D011693 | Purpura |
| D016553 | Purpura, Thrombocytopenic, Idiopathic |
| D013921 | Thrombocytopenia |
| ID | Term |
|---|---|
| D001778 | Blood Coagulation Disorders |
| D006402 | Hematologic Diseases |
| D006425 | Hemic and Lymphatic Diseases |
| D006470 | Hemorrhage |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012877 | Skin Manifestations |
| D012816 | Signs and Symptoms |
| D011696 | Purpura, Thrombocytopenic |
| D057049 | Thrombotic Microangiopathies |
| D001791 | Blood Platelet Disorders |
| D000095542 | Cytopenia |
| D006474 | Hemorrhagic Disorders |
| D001327 | Autoimmune Diseases |
| D007154 | Immune System Diseases |
Not provided
Not provided
| ID | Term |
|---|---|
| C520809 | eltrombopag |
Not provided
Not provided
Not provided
| Lost to Follow-up |
|
| Withdrawal by parent/ guardian |
|
| Lost to Follow-up |
|
| Withdrawal by parent/guardian |
|
| Adverse Event |
|
| Physician Decision |
|
| Randomized but did not receive treatment |
|
| Male |
|
| Asian - Japanese/East Asian Heritage |
|
| White - White/Caucasian/European |
|
| Unknown |
|
| White - Arabic/North African Heritage |
|
| Mixed Race |
|
|
|
|
|
| OG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
|
|
| OG001 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Particpiants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Particpiants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
|
|
| OG001 | Eltrombopag Cohort 2 - 6-11 Years | Par aged between 6 and 11 years received eltrombopag administered as a tablet or dry powder for oral suspension for a total of 24 weeks. Par in Part 1 received an OL trt based on body weight for 24 weeks. Par weighing <27 kilograms (kg) started at 12.5mg QD and par weighing >=27kg started at 25mg QD. Par randomized to eltrombopag in Part 2 received trt based on body weight for 7 weeks. Par weighing <27kg started at 25mg QD and par weighing >=27kg started at 50mg QD. Par of East Asian ancestry weighing <27kg began at 12.5mg QD and those >=27kg began at 25mg QD. Par who received 7 weeks of eltrombopag in Part 2 continued the same dose in Part 2/3 for an additional 17 weeks of trt to complete a total of 24 weeks. Par who received placebo in Part 2, received 24 weeks of trt of eltrombopag in Part 2/3 using the same dosing guidelines as Part 2 up to Week 31 of the study. The maximum dose allowed was 75mg daily. All par underwent individual dose titration based upon platelet response. |
| OG002 | Eltrombopag Cohort 3 - 1-5 Years | Par aged between 1 and 5 years received eltrombopag administered as a dry powder for oral suspension for a total of 24 weeks. Par in Part 1 received an OL trt based on body weight for 24 weeks. Par starting dose was 0.7mg/kg QD, par of East Asian ancestry began at 0.5mg/kg/day. Par randomized to eltrombopag in Part 2 received trt based on body weight for 7 weeks. Par starting dose was 1.5mg/kg QD, par of East Asian ancestry weighing began at 0.8 mg/kg/day. Par who received 7 weeks of eltrombopag in Part 2 continued the same dose in Part 2/3 for an additional 17 weeks of trt to complete a total of 24 weeks. Par who received placebo in Part 2, received 24 weeks of trt of eltrombopag in Part 2/3 using the same dosing guidelines as Part 2 up to Week 31 of the study. The maximum dose allowed was 75mg daily. All par underwent individual dose titration based upon platelet response. |
|
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| OG001 | Eltrombopag Cohort 2 - 6-11 Years | Par aged between 6 and 11 years received eltrombopag administered as a tablet or dry powder for oral suspension for a total of 24 weeks. Par in Part 1 received an OL trt based on body weight for 24 weeks. Par weighing <27 kilograms (kg) started at 12.5mg QD and par weighing >=27kg started at 25mg QD. Par randomized to eltrombopag in Part 2 received trt based on body weight for 7 weeks. Par weighing <27kg started at 25mg QD and par weighing >=27kg started at 50mg QD. Par of East Asian ancestry weighing <27kg began at 12.5mg QD and those >=27kg began at 25mg QD. Par who received 7 weeks of eltrombopag in Part 2 continued the same dose in Part 2/3 for an additional 17 weeks of trt to complete a total of 24 weeks. Par who received placebo in Part 2, received 24 weeks of trt of eltrombopag in Part 2/3 using the same dosing guidelines as Part 2 up to Week 31 of the study. The maximum dose allowed was 75mg daily. All par underwent individual dose titration based upon platelet response. |
| OG002 | Eltrombopag Cohort 3 - 1-5 Years | Par aged between 1 and 5 years received eltrombopag administered as a dry powder for oral suspension for a total of 24 weeks. Par in Part 1 received an OL trt based on body weight for 24 weeks. Par starting dose was 0.7mg/kg QD, par of East Asian ancestry began at 0.5mg/kg/day. Par randomized to eltrombopag in Part 2 received trt based on body weight for 7 weeks. Par starting dose was 1.5mg/kg QD, par of East Asian ancestry weighing began at 0.8 mg/kg/day. Par who received 7 weeks of eltrombopag in Part 2 continued the same dose in Part 2/3 for an additional 17 weeks of trt to complete a total of 24 weeks. Par who received placebo in Part 2, received 24 weeks of trt of eltrombopag in Part 2/3 using the same dosing guidelines as Part 2 up to Week 31 of the study. The maximum dose allowed was 75mg daily. All par underwent individual dose titration based upon platelet response. |
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| OG001 | Eltrombopag Cohort 2 - 6-11 Years | Par aged between 6 and 11 years received eltrombopag administered as a tablet or dry powder for oral suspension for a total of 24 weeks. Par in Part 1 received an OL trt based on body weight for 24 weeks. Par weighing <27 kilograms (kg) started at 12.5mg QD and par weighing >=27kg started at 25mg QD. Par randomized to eltrombopag in Part 2 received trt based on body weight for 7 weeks. Par weighing <27kg started at 25mg QD and par weighing >=27kg started at 50mg QD. Par of East Asian ancestry weighing <27kg began at 12.5mg QD and those >=27kg began at 25mg QD. Par who received 7 weeks of eltrombopag in Part 2 continued the same dose in Part 2/3 for an additional 17 weeks of trt to complete a total of 24 weeks. Par who received placebo in Part 2, received 24 weeks of trt of eltrombopag in Part 2/3 using the same dosing guidelines as Part 2 up to Week 31 of the study. The maximum dose allowed was 75mg daily. All par underwent individual dose titration based upon platelet response. |
| OG002 | Eltrombopag Cohort 3 - 1-5 Years | Par aged between 1 and 5 years received eltrombopag administered as a dry powder for oral suspension for a total of 24 weeks. Par in Part 1 received an OL trt based on body weight for 24 weeks. Par starting dose was 0.7mg/kg QD, par of East Asian ancestry began at 0.5mg/kg/day. Par randomized to eltrombopag in Part 2 received trt based on body weight for 7 weeks. Par starting dose was 1.5mg/kg QD, par of East Asian ancestry weighing began at 0.8 mg/kg/day. Par who received 7 weeks of eltrombopag in Part 2 continued the same dose in Part 2/3 for an additional 17 weeks of trt to complete a total of 24 weeks. Par who received placebo in Part 2, received 24 weeks of trt of eltrombopag in Part 2/3 using the same dosing guidelines as Part 2 up to Week 31 of the study. The maximum dose allowed was 75mg daily. All par underwent individual dose titration based upon platelet response. |
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| OG001 | Eltrombopag Cohort 2 - 6-11 Years | Par aged between 6 and 11 years received eltrombopag administered as a tablet or dry powder for oral suspension for a total of 24 weeks. Par in Part 1 received an OL trt based on body weight for 24 weeks. Par weighing <27 kilograms (kg) started at 12.5mg QD and par weighing >=27kg started at 25mg QD. Par randomized to eltrombopag in Part 2 received trt based on body weight for 7 weeks. Par weighing <27kg started at 25mg QD and par weighing >=27kg started at 50mg QD. Par of East Asian ancestry weighing <27kg began at 12.5mg QD and those >=27kg began at 25mg QD. Par who received 7 weeks of eltrombopag in Part 2 continued the same dose in Part 2/3 for an additional 17 weeks of trt to complete a total of 24 weeks. Par who received placebo in Part 2, received 24 weeks of trt of eltrombopag in Part 2/3 using the same dosing guidelines as Part 2 up to Week 31 of the study. The maximum dose allowed was 75mg daily. All par underwent individual dose titration based upon platelet response. |
| OG002 | Eltrombopag Cohort 3 - 1-5 Years | Par aged between 1 and 5 years received eltrombopag administered as a dry powder for oral suspension for a total of 24 weeks. Par in Part 1 received an OL trt based on body weight for 24 weeks. Par starting dose was 0.7mg/kg QD, par of East Asian ancestry began at 0.5mg/kg/day. Par randomized to eltrombopag in Part 2 received trt based on body weight for 7 weeks. Par starting dose was 1.5mg/kg QD, par of East Asian ancestry weighing began at 0.8 mg/kg/day. Par who received 7 weeks of eltrombopag in Part 2 continued the same dose in Part 2/3 for an additional 17 weeks of trt to complete a total of 24 weeks. Par who received placebo in Part 2, received 24 weeks of trt of eltrombopag in Part 2/3 using the same dosing guidelines as Part 2 up to Week 31 of the study. The maximum dose allowed was 75mg daily. All par underwent individual dose titration based upon platelet response. |
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| OG002 | Part 2 (Randomized Period) Cohort 2-Placebo | Participants aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| OG003 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Participants aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, participants with a weight of <27 kg received 25 mg QD and participants with a weight of >=27 kg received 50 mg QD. Participants of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and participants with a weight of >=27 kg received 25 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG004 | Part 2 (Randomized Period) Cohort 3-Placebo | Participants aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. |
| OG005 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Participants aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Participants of East Asian ancestry began at 0.8 mg/kg/day. The maximum dose allowed was 2 mg/kg, unless otherwise approved by the investigator, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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Participants aged between 6 and 11 years received a 24-week Open-Label treatment of eltrombopag administered as a tablet. The starting dose of eltrombopag was based on the body weight. Participants with a weight of <27 kilograms (kg) received 12.5 mg QD (approximately 0.5 - 0.7 mg/kg QD) and participants with a weight of >=27 kg received 25 mg QD (approximately 0.5 - 0.8 mg/kg QD). The maximum dose allowed was 2 mg/kg and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 1 (Dose-Finding Period) Cohort 2 | Participants aged between 6 and 11 years received a 24-week Open-Label treatment of eltrombopag administered as a tablet. The starting dose of eltrombopag was based on the body weight. Participants with a weight of <27 kilograms (kg) received 12.5 mg QD (approximately 0.5 - 0.7 mg/kg QD) and participants with a weight of >=27 kg received 25 mg QD (approximately 0.5 - 0.8 mg/kg QD). The maximum dose allowed was 2 mg/kg and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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Participants aged between 12 and 17 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was 37.5 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response.
| OG002 | Part 2 (Randomized Period) Cohort 2-Placebo | Participants aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| OG003 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Participants aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, participants with a weight of <27 kg received 25 mg QD and participants with a weight of >=27 kg received 50 mg QD. Participants of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and participants with a weight of >=27 kg received 25 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG004 | Part 2 (Randomized Period) Cohort 3-Placebo | Participants aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. |
| OG005 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Participants aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Participants of East Asian ancestry began at 0.8 mg/kg/day. The maximum dose allowed was 2 mg/kg, unless otherwise approved by the investigator, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2/3 (Eltrombopag Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG002 | Part 2 (Randomized Period) Cohort 2-Placebo | Participants aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| OG003 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Participants aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, participants with a weight of <27 kg received 25 mg QD and participants with a weight of >=27 kg received 50 mg QD. Participants of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and participants with a weight of >=27 kg received 25 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG004 | Part 2 (Randomized Period) Cohort 3-Placebo | Participants aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. |
| OG005 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Participants aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Participants of East Asian ancestry began at 0.8 mg/kg/day. The maximum dose allowed was 2 mg/kg, unless otherwise approved by the investigator, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2/3 (Eltrombopag Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Particpiants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Particpiants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the studyat 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2 (Randomized Period) -Placebo | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag matching placebo for 7 weeks. |
| OG002 | Part 2 (Randomized Period) - Eltrombopag | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag for 7 weeks. The starting dose for Cohort 1 was 37.5 mg QD. For Cohort 2, starting dose was based on the body weight. Par with a body weight of <27 kg received 25 mg QD, and par with a body weight of >=27 kg received 50 mg QD. Par of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD, and with a body weight of >=27 kg received 25 mg QD. For Cohort 3, the starting dose was 1.5 mg/kg QD and 0.8 mg/kg/day for par of East Asian ancestry. The maximum dose allowed was 2mg/kg and could not exceed 75 mg daily. For all par, individual dose titration was allowed based upon platelet response. |
| OG003 | Part 2/3 (Eltrombopag Open-Label Period) | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3: 1 to 5 years), completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet or dry powder for oral suspension in Part 2/3. Par who received eltrombopag during the Randomized Period continued on the same dose, unless adjustments were warranted according to the dosing guidelines, for 17 additional weeks (for a total of 24 weeks of treatment). Par who received placebo during the Randomized Period followed the starting doses for each age Cohort specified for Part 2, and received a total of 24 weeks of eltrombopag treatment. |
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| OG001 | Part 2 (Randomized Period) -Placebo | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag matching placebo for 7 weeks. |
| OG002 | Part 2 (Randomized Period) - Eltrombopag | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag for 7 weeks. The starting dose for Cohort 1 was 37.5 mg QD. For Cohort 2, starting dose was based on the body weight. Par with a body weight of <27 kg received 25 mg QD, and par with a body weight of >=27 kg received 50 mg QD. Par of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD, and with a body weight of >=27 kg received 25 mg QD. For Cohort 3, the starting dose was 1.5 mg/kg QD and 0.8 mg/kg/day for par of East Asian ancestry. The maximum dose allowed was 2mg/kg and could not exceed 75 mg daily. For all par, individual dose titration was allowed based upon platelet response. |
| OG003 | Part 2/ 3 (Eltrombopag Open-Label Period) | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3: 1 to 5 years), completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet or dry powder for oral suspension in Part 2/3. Par who received eltrombopag during the Randomized Period continued on the same dose, unless adjustments were warranted according to the dosing guidelines, for 17 additional weeks (for a total of 24 weeks of treatment). Par who received placebo during the Randomized Period followed the starting doses for each age Cohort specified for Part 2, and received a total of 24 weeks of eltrombopag treatment. |
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| OG001 | Part 2 (Randomized Period) -Placebo | Participants aged between 1 and 17 years (Cohort 1 age group- 12 to 17 years, Cohort 2- 6 to 11 years and Cohort 3- 1 to 5 years) received eltrombopag matching placebo for 7 weeks. |
| OG002 | Part 2 (Randomized Period) - Eltrombopag | Participants aged between 1 and 17 years (Cohort 1 age group- 12 to 17 years, Cohort 2- 6 to 11 years and Cohort 3-1 to 5 years) received eltrombopag for 7 weeks. The starting dose for cohort 1 was eltrombopag 25 mg, (East Asian ancestry: 12.5mg, QD). For cohort 2 starting dose was based on the body weight (Weight <27 kg: 25 mg QD, Weight >=27 kg: 50 mg QD; east Asian ancestry subjects Weight <27 kg: 12.5 mg QD, Weight >=27 kg: 25 mg QD). For cohort 1 and 2 maximum dose allowed was 75mg. For cohort 3 starting dose was 0.7 mg/kg, QD and the dose calculations were based on the body weight. For all participants individual dose titration was allowed based upon platelet response. |
| OG003 | Part 2/ 3 (Eltrombopag Open-Label Period) | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3: 1 to 5 years), completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet or dry powder for oral suspension in Part 2/3. Par who received eltrombopag during the Randomized Period continued on the same dose, unless adjustments were warranted according to the dosing guidelines, for 17 additional weeks (for a total of 24 weeks of treatment). Par who received placebo during the Randomized Period followed the starting doses for each age Cohort specified for Part 2, and received a total of 24 weeks of eltrombopag treatment. |
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| OG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG002 | Part 2 (Randomized Period) Cohort 2-Placebo | Participants aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| OG003 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Participants aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, participants with a weight of <27 kg received 25 mg QD and participants with a weight of >=27 kg received 50 mg QD. Participants of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and participants with a weight of >=27 kg received 25 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG004 | Part 2 (Randomized Period) Cohort 3-Placebo | Participants aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. |
| OG005 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Participants aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Participants of East Asian ancestry began at 0.8 mg/kg/day. The maximum dose allowed was 2 mg/kg, unless otherwise approved by the investigator, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2/3 (Eltrombopag Open-Label Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Open- Label Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2 Randomized Period - Placebo | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag matching placebo for 7 weeks. |
| OG002 | Part 2 Randomized Period - Eltrombopag | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag for 7 weeks. The starting dose for Cohort 1 was 37.5 mg QD. For Cohort 2, starting dose was based on the body weight. Par with a body weight of <27 kg received 25 mg QD, and par with a body weight of >=27 kg received 50 mg QD. Par of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD, and with a body weight of >=27 kg received 25 mg QD. For Cohort 3, the starting dose was 1.5 mg/kg QD and 0.8 mg/kg/day for par of East Asian ancestry. The maximum dose allowed was 2mg/kg and could not exceed 75 mg daily. For all par, individual dose titration was allowed based upon platelet response. |
| OG003 | Part 2/ 3 (Eltrombopag Open-Label Period) | Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3: 1 to 5 years), completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet or dry powder for oral suspension in Part 2/3. Par who received eltrombopag during the Randomized Period continued on the same dose, unless adjustments were warranted according to the dosing guidelines, for 17 additional weeks (for a total of 24 weeks of treatment). Par who received placebo during the Randomized Period followed the starting doses for each age Cohort specified for Part 2, and received a total of 24 weeks of eltrombopag treatment. |
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| OG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG002 |
| Part 2 (Randomized Period) Cohort 2-Placebo |
Participants aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| OG003 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Participants aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, participants with a weight of <27 kg received 25 mg QD and participants with a weight of >=27 kg received 50 mg QD. Participants of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and participants with a weight of >=27 kg received 25 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG004 | Part 2 (Randomized Period) Cohort 3-Placebo | Participants aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. |
| OG005 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Participants aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Participants of East Asian ancestry began at 0.8 mg/kg/day. The maximum dose allowed was 2 mg/kg, unless otherwise approved by the investigator, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2/3 (Eltrombopag Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG002 |
| Part 2 (Randomized Period) Cohort 2-Placebo |
Participants aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| OG003 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Participants aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, participants with a weight of <27 kg received 25 mg QD and participants with a weight of >=27 kg received 50 mg QD. Participants of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and participants with a weight of >=27 kg received 25 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG004 | Part 2 (Randomized Period) Cohort 3-Placebo | Participants aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. |
| OG005 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Participants aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Participants of East Asian ancestry began at 0.8 mg/kg/day. The maximum dose allowed was 2 mg/kg, unless otherwise approved by the investigator, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 | Part 2/3 (Eltrombopag Period) Cohort 2 | All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| Part 2 Randomized Period - Eltrombopag |
Par aged between 1 and 17 years (Cohort 1 age group: 12 to 17 years, Cohort 2: 6 to 11 years and Cohort 3:1 to 5 years) received eltrombopag for 7 weeks. The starting dose for Cohort 1 was 37.5 mg QD. For Cohort 2, starting dose was based on the body weight. Par with a body weight of <27 kg received 25 mg QD, and par with a body weight of >=27 kg received 50 mg QD. Par of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD, and with a body weight of >=27 kg received 25 mg QD. For Cohort 3, the starting dose was 1.5 mg/kg QD and 0.8 mg/kg/day for par of East Asian ancestry. The maximum dose allowed was 2mg/kg and could not exceed 75 mg daily. For all par, individual dose titration was allowed based upon platelet response. |
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| OG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG002 | Part 2 (Randomized Period) Cohort 2-Placebo | Participants aged between 6 and 11 years received eltrombopag matching placebo administered as a tablet QD for 7 weeks. |
| OG003 | Part 2 (Randomized Period) Cohort 2-Eltrombopag | Participants aged between 6 and 11 years received eltrombopag administered as a tablet for 7 weeks. The starting dose of eltrombopag was based on the body weight, participants with a weight of <27 kg received 25 mg QD and participants with a weight of >=27 kg received 50 mg QD. Participants of East Asian ancestry with a body weight of <27 kg received 12.5 mg QD and participants with a weight of >=27 kg received 25 mg QD. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG004 | Part 2 (Randomized Period) Cohort 3-Placebo | Participants aged between 1 to 5 years received eltrombopag matching placebo administered as a dry powder for oral suspension QD for 7 weeks. |
| OG005 | Part 2 (Randomized Period) Cohort 3- Eltrombopag | Participants aged between 1 to 5 years received eltrombopag administered as a dry powder for oral suspension for 7 weeks. The starting dose of eltrombopag was 1.5 mg/kg QD and the dose calculations were based on the body weight. Participants of East Asian ancestry began at 0.8 mg/kg/day. The maximum dose allowed was 2 mg/kg, as approved by the investigator, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| Part 2/3 (Eltrombopag Open-Label Period) Cohort 2 |
All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Open- Label Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG002 | Part 1 (Dose-Finding Period) Cohort 3 | Participants aged between 1 and 5 years received a 24-week Open-Label treatment of eltrombopag administered as a dry powder for oral suspension. The starting dose of eltrombopag was 0.7 mg/kg QD. Participants of East Asian ancestry began at 0.5 mg/kg/day. The maximum dose allowed was 2 mg/kg, and could not exceed 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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| OG001 |
| Part 2/3 (Eltrombopag Open-Label Period) Cohort 2 |
All participants aged between 6 and 11 years and completing Part 2 of the study received an Open -Label treatment of eltrombopag administered as a tablet in Part 2/3. Participants with difficulty swallowing a tablet in Part 2 were administered eltrombopag as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag based on body weight up to Week 31 of the study. Participants with a body weight of <=27 kg received 25 mg QD and participants with a body weight of >=27 kg QD received 50 mg QD. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
| OG002 | Part 2/3 (Eltrombopag Open- Label Period) Cohort 3 | All participants aged between 1 and 5 years and completing Part 2 of the study received an Open-Label treatment of eltrombopag administered as a dry powder for oral suspension in Part 2/3. Participants who received placebo in Part 2 received 24 weeks of treatment of eltrombopag up to Week 31 of the study at 1.5 mg/kg QD. Participants of East Asian ancestry received 0.8 mg/kg/day. Participants who received 7 weeks of eltrombopag treatment in Part 2 received an additional 17 weeks of treatment to complete a total of 24 weeks continuing at the same dosage at the end of Part 2. The maximum dose allowed was 75 mg daily. All participants enrolled in the study underwent individual dose titration based upon platelet response. |
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