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This study will evaluate two dose regimens of mepolizumab [75mg intravenous (i.v.) or 100mg subcutaneous (SC) every 4 weeks] compared with placebo over a 32 week treatment period in subjects with severe refractory asthma with elevated blood eosinophils. Efficacy will be measured by a reduction in the frequency of asthma exacerbations. Additional efficacy assessments will include measurements of lung function, symptom scores, and quality of life. Safety will be assessed by clinical laboratory samples, ECGs, immunogenicity and adverse events.
This study is intended to replicate the Phase IIb/III study MEA112997. Subjects in MEA115588, who meet all eligibility criteria at screening visit, will enter the run-in period. Those subjects that are not able/eligible to be randomised at the end of the 6 week run-in period will be deemed run-in failures. Subjects will remain on their current maintenance therapy throughout the run-in, double-blind treatment administration and follow-up periods. Subjects who meet the randomisation eligibility criteria will be randomised in a 1:1:1 ratio to receive one of the following treatments every 4 weeks for a total of 8 doses: Mepolizumab 75 miligram (mg) i.v. and placebo SC, or Mepolizumab 100 mg SC and placebo i.v. or Placebo i.v. and placebo SC.
Subjects that receive all 8 doses of double-blind treatment, and meet the eligibility criteria for the Open-Label Extension (OLE) Study, will be offered the opportunity to participate in the OLE trial.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Mepolizumab IV | Experimental | Mepolizumab 75 mg will be administered intravenously approximately every 4 weeks with the last dose at week 32. Subjects in the Mepolizumab IV arm will receive mepolizumab 75 mg intravenously and placebo SC once every 4 weeks with the last dose at Week 28 (total of 8 doses) |
|
| Mepolizumab SC | Experimental | Subjects in the Mepolizumab SC arm will receive mepolizumab 100 mg SC and placebo IV once every 4 weeks with the last dose at Week 28 (total of 8 doses) |
|
| Placebo | Placebo Comparator | Subjects in the Placebo arm will receive matching placebo SC and placebo IV once every 4 weeks with the last dose at Week 28 (total of 8 doses) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Mepolizumab IV | Drug | Mepolizumab 75 mg IV will be administered every 4 weeks with the last dose at Week 28 |
|
| Measure | Description | Time Frame |
|---|---|---|
| Number of Clinically Significant Exacerbations of Asthma Per Year | Clinically significant exacerbations of asthma are defined as worsening of asthma which required use of systemic corticosteroids (IV or oral steroid like prednisone, for at least 3 days or a single intramuscular (IM) corticosteroid (CS) dose is required. For maintenance of systemic corticosteroids, at least double the existing maintenance dose for at least 3 days was required) and/or hospitalization and/or emergency department (ED) visits. The frequency of clinically significant exacerbations of asthma over the 32-week treatment period is expressed as the number of exacerbations per year. Analysis of the number of exacerbations performed using a negative binomial model with covariates of treatment group, baseline maintenance OCS therapy (OCS vs. no OCS), region, exacerbations in the year prior to the study (as an ordinal variable) and baseline % predicted FEV1, and with logarithm of time on treatment as an offset variable. | From randomization (Week 0) to Week 32 or if Early Withdrawal (EW) 4 weeks post last dose |
| Measure | Description | Time Frame |
|---|---|---|
| Number of Clinically Significant Exacerbations Requiring Hospitalization (Including Intubation and Admittance to an Intensive Care Unit [ICU]) or ED Visits Per Year | Clinically significant exacerbations of asthma are defined as worsening of asthma which required use of systemic corticosteroids (IV or oral steroid like prednisone, for at least 3 days or a single intramuscular (IM) corticosteroid (CS) dose is required. For maintenance of systemic corticosteroids, at least double the existing maintenance dose for at least 3 days was required) and/or hospitalization and/or emergency department (ED) visits. The frequency of clinically significant exacerbations of asthma over the 32-week treatment period is expressed as the number of exacerbations per year. Analysis of the number of exacerbations performed using a negative binomial model with covariates of treatment group, baseline maintenance OCS therapy (OCS vs. no OCS), region, exacerbations in the year prior to the study (as an ordinal variable) and baseline % predicted FEV1, and with logarithm of time on treatment as an offset variable. |
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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 | Birmingham | Alabama | 35294 | United States | ||
| GSK Investigational Site |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 37131185 | Derived | Chen W, Reddel HK, FitzGerald JM, Beasley R, Janson C, Sadatsafavi M. Can we predict who will benefit most from biologics in severe asthma? A post-hoc analysis of two phase 3 trials. Respir Res. 2023 May 2;24(1):120. doi: 10.1186/s12931-023-02409-2. | |
| 34158028 | Derived | Lemiere C, Taille C, Lee JK, Smith SG, Mallett S, Albers FC, Bradford ES, Yancey SW, Liu MC. Impact of baseline clinical asthma characteristics on the response to mepolizumab: a post hoc meta-analysis of two Phase III trials. Respir Res. 2021 Jun 22;22(1):184. doi: 10.1186/s12931-021-01767-z. |
| Label | URL |
|---|---|
| Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research. | View source |
| ID | Type | URL | Comment |
|---|---|---|---|
| 115588 | Informed Consent Form | View IPD |
Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.
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A total of 802 participants (par.) were screened; 82 were Screen failures; 140 were Run-in failures; 580 were randomized, of which 576 received at least 1 dose of study drug.
Par. who met the eligibility criteria at screening, entered the Run-in period for a minimum of 1 week and a maximum of 6 weeks. Par. who received all 8 doses and met the eligibility criteria were offered the opportunity to participate in an open label extension (OLE) study. Par. not entering the OLE study completed the Follow-up Visit.
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| ID | Title | Description |
|---|---|---|
| FG000 | Placebo | Participants received placebo intravenously (IV) plus placebo subcutaneously (SC) every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| Title | Milestones | Reasons Not Completed | |||||
|---|---|---|---|---|---|---|---|
| Overall Study |
|
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| Mepolizumab SC | Drug | Mepolizumab 100 mg SC will be administered every 4 weeks with the last dose at Week 28 |
|
| IV Placebo | Drug | Normal saline (placebo) will be administered IV every 4 weeks with the last dose at Week 28 |
|
| SC Placebo | Drug | Normal saline (placebo) will be administered SC every 4 weeks with the last dose at Week 28 |
|
| From randomization (Week 0) to Week 32 or if Early Withdrawal (EW) 4 weeks post last dose |
| Number of Clinically Significant Exacerbations Requiring Hospitalization (Including Intubation and Admittance to an ICU) Per Year | Clinically significant exacerbations of asthma is defined as worsening of asthma which required use of systemic corticosteroids (IV or oral steroid like prednisone, for at least 3 days or a single intramuscular (IM) corticosteroid (CS) dose is required. For maintenance of systemic corticosteroids, at least double the existing maintenance dose for at least 3 days was required) and/or hospitalization. The frequency of clinically significant exacerbations of asthma over the 32-week treatment period is expressed as the number of exacerbations per year. Analysis of the number of exacerbations performed using a negative binomial model with covariates of treatment group, baseline maintenance OCS therapy (OCS vs. no OCS), region, exacerbations in the year prior to the study (as an ordinal variable) and baseline % predicted FEV1, and with logarithm of time on treatment as an offset variable. | From randomization (Week 0) to Week 32 or if Early Withdrawal (EW) 4 weeks post last dose |
| Mean Change From Baseline in Clinic Pre-bronchodilator Forced Expiratory Volume in 1 Second (FEV1) at Week 32 | FEV1 is defined as the volume of air expelled from the lungs in 1 second. Pre-bronchodilator FEV1 measurements were taken by spirometry. The change from Baseline is defined as the difference between the value of the endpoint at the time point of interest and the baseline value. Analysis performed using mixed model repeated measures with covariates of baseline, region, baseline maintenance OCS therapy (OCS vs. no OCS), exacerbations in the year prior to the study (as an ordinal variable), treatment and visit, plus interaction terms for visit by baseline and visit by treatment group. | Baseline, Week 32 |
| Mean Change From Baseline in the St. George's Respiratory Questionnaire Total Score at Week 32 | The St. George's Respiratory Questionnaire is an established instrument, comprising 50 questions, evaluating symptoms, activity, and impacts; to measure Quality of Life in participants with diseases of airway obstruction and to elicit the participant's opinion of his/her health. The lowest possible value is zero and the highest possible value is 100. The higher values correspond to greater impairment in quality of life. The questionnaire was administered at Baseline (Visit 2) and at the Exit Visit (approximately 4 weeks after the last dose of study treatment). The change from baseline is defined as the difference between the value of the endpoint at the time point of interest and the baseline value. Analysis performed using analysis of covariance with covariates of baseline, region, baseline maintenance OCS therapy (OCS vs. no OCS), exacerbations in the year prior to the study (as an ordinal variable), baseline % predicted FEV1, and treatment. | Baseline, Week 32 |
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| 34098955 | Derived | Gibson PG, Prazma CM, Chupp GL, Bradford ES, Forshag M, Mallett SA, Yancey SW, Smith SG, Bel EH. Mepolizumab improves clinical outcomes in patients with severe asthma and comorbid conditions. Respir Res. 2021 Jun 7;22(1):171. doi: 10.1186/s12931-021-01746-4. |
| 33475231 | Derived | Best N, Price RG, Pouliquen IJ, Keene ON. Assessing efficacy in important subgroups in confirmatory trials: An example using Bayesian dynamic borrowing. Pharm Stat. 2021 May;20(3):551-562. doi: 10.1002/pst.2093. Epub 2021 Jan 21. |
| 32515118 | Derived | Wardlaw A, Howarth PH, Israel E, Taille C, Quirce S, Mallett S, Bates S, Albers FC, Kwon N. Fungal sensitization and its relationship to mepolizumab response in patients with severe eosinophilic asthma. Clin Exp Allergy. 2020 Jul;50(7):869-872. doi: 10.1111/cea.13680. Epub 2020 Jun 25. No abstract available. |
| 32450626 | Derived | Kim MK, Park HS, Park CS, Min SJ, Albers FC, Yancey SW, Mayer B, Kwon N. Efficacy and safety of mepolizumab in Korean patients with severe eosinophilic asthma from the DREAM and MENSA studies. Korean J Intern Med. 2021 Mar;36(2):362-370. doi: 10.3904/kjim.2019.198. Epub 2020 May 26. |
| 31447130 | Derived | Khurana S, Brusselle GG, Bel EH, FitzGerald JM, Masoli M, Korn S, Kato M, Albers FC, Bradford ES, Gilson MJ, Price RG, Humbert M. Long-term Safety and Clinical Benefit of Mepolizumab in Patients With the Most Severe Eosinophilic Asthma: The COSMEX Study. Clin Ther. 2019 Oct;41(10):2041-2056.e5. doi: 10.1016/j.clinthera.2019.07.007. Epub 2019 Aug 22. |
| 31262378 | Derived | Khurana S, Lyness JM, Mallett S, Nelsen LM, Prazma CM, Albers FC, Forshag M, Llanos JP, Yancey SW, Ortega HG. Association of depressive symptoms with health status and markers of uncontrolled severe asthma. Allergy Asthma Proc. 2019 Jul 1;40(4):230-239. doi: 10.2500/aap.2019.40.4229. |
| 31251094 | Derived | Nelsen LM, Cockle SM, Gunsoy NB, Jones P, Albers FC, Bradford ES, Mullerova H. Impact of exacerbations on St George's Respiratory Questionnaire score in patients with severe asthma: post hoc analyses of two clinical trials and an observational study. J Asthma. 2020 Sep;57(9):1006-1016. doi: 10.1080/02770903.2019.1630640. Epub 2019 Jun 28. |
| 31047111 | Derived | Yancey SW, Bradford ES, Keene ON. Disease burden and efficacy of mepolizumab in patients with severe asthma and blood eosinophil counts of >/=150-300 cells/muL. Respir Med. 2019 May;151:139-141. doi: 10.1016/j.rmed.2019.04.008. Epub 2019 Apr 8. |
| 30954640 | Derived | Ortega HG, Meyer E, Brusselle G, Asano K, Prazma CM, Albers FC, Mallett SA, Yancey SW, Gleich GJ. Update on immunogenicity in severe asthma: Experience with mepolizumab. J Allergy Clin Immunol Pract. 2019 Sep-Oct;7(7):2469-2475.e1. doi: 10.1016/j.jaip.2019.03.042. Epub 2019 Apr 5. No abstract available. |
| 29949045 | Derived | Ortega H, Menzies-Gow A, Llanos JP, Forshag M, Albers F, Gunsoy N, Bradford ES, Yancey SW, Kraft M. Rapid and Consistent Improvements in Morning PEF in Patients with Severe Eosinophilic Asthma Treated with Mepolizumab. Adv Ther. 2018 Jul;35(7):1059-1068. doi: 10.1007/s12325-018-0727-8. Epub 2018 Jun 15. |
| 29398640 | Derived | Ortega H, Yancey SW, Keene ON, Gunsoy NB, Albers FC, Howarth PH. Asthma Exacerbations Associated with Lung Function Decline in Patients with Severe Eosinophilic Asthma. J Allergy Clin Immunol Pract. 2018 May-Jun;6(3):980-986.e1. doi: 10.1016/j.jaip.2017.12.019. Epub 2018 Feb 15. |
| 29258789 | Derived | Gunsoy NB, Cockle SM, Yancey SW, Keene ON, Bradford ES, Albers FC, Pavord ID. Evaluation of Potential Continuation Rules for Mepolizumab Treatment of Severe Eosinophilic Asthma. J Allergy Clin Immunol Pract. 2018 May-Jun;6(3):874-882.e4. doi: 10.1016/j.jaip.2017.11.026. Epub 2017 Dec 16. |
| 28687231 | Derived | Albers FC, Price RG, Smith SG, Yancey SW. Mepolizumab efficacy in patients with severe eosinophilic asthma receiving different controller therapies. J Allergy Clin Immunol. 2017 Nov;140(5):1464-1466.e4. doi: 10.1016/j.jaci.2017.06.010. Epub 2017 Jul 4. No abstract available. |
| 27087007 | Derived | Magnan A, Bourdin A, Prazma CM, Albers FC, Price RG, Yancey SW, Ortega H. Treatment response with mepolizumab in severe eosinophilic asthma patients with previous omalizumab treatment. Allergy. 2016 Sep;71(9):1335-44. doi: 10.1111/all.12914. Epub 2016 May 24. |
| 25199059 | Derived | Ortega HG, Liu MC, Pavord ID, Brusselle GG, FitzGerald JM, Chetta A, Humbert M, Katz LE, Keene ON, Yancey SW, Chanez P; MENSA Investigators. Mepolizumab treatment in patients with severe eosinophilic asthma. N Engl J Med. 2014 Sep 25;371(13):1198-207. doi: 10.1056/NEJMoa1403290. Epub 2014 Sep 8. |
For additional information about this study please refer to the GSK Clinical Study Register |
| 115588 | Annotated Case Report Form | View IPD | For additional information about this study please refer to the GSK Clinical Study Register |
| 115588 | Statistical Analysis Plan | View IPD | For additional information about this study please refer to the GSK Clinical Study Register |
| 115588 | Clinical Study Report | View IPD | For additional information about this study please refer to the GSK Clinical Study Register |
| 115588 | Individual Participant Data Set | View IPD | For additional information about this study please refer to the GSK Clinical Study Register |
| 115588 | Study Protocol | View IPD | For additional information about this study please refer to the GSK Clinical Study Register |
| 115588 | Dataset Specification | View IPD | For additional information about this study please refer to the GSK Clinical Study Register |
| FG001 | Mepolizumab 75 mg IV | Participants received mepolizumab 75 milligrams (mg) IV plus placebo SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| FG002 | Mepolizumab 100 mg SC | Participants received placebo IV plus mepolizumab 100 mg SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| COMPLETED |
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| NOT COMPLETED |
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| ID | Title | Description |
|---|---|---|
| BG000 | Placebo | Participants received placebo IV plus placebo SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| BG001 | Mepolizumab 75 mg IV | Participants received mepolizumab 75 mg IV plus placebo SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| BG002 | Mepolizumab 100 mg SC | Participants received placebo IV plus mepolizumab 100 mg SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| BG003 | Total | Total of all reporting groups |
| Units | Counts |
|---|---|
| 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 | Number of Clinically Significant Exacerbations of Asthma Per Year | Clinically significant exacerbations of asthma are defined as worsening of asthma which required use of systemic corticosteroids (IV or oral steroid like prednisone, for at least 3 days or a single intramuscular (IM) corticosteroid (CS) dose is required. For maintenance of systemic corticosteroids, at least double the existing maintenance dose for at least 3 days was required) and/or hospitalization and/or emergency department (ED) visits. The frequency of clinically significant exacerbations of asthma over the 32-week treatment period is expressed as the number of exacerbations per year. Analysis of the number of exacerbations performed using a negative binomial model with covariates of treatment group, baseline maintenance OCS therapy (OCS vs. no OCS), region, exacerbations in the year prior to the study (as an ordinal variable) and baseline % predicted FEV1, and with logarithm of time on treatment as an offset variable. | Modified Intent-to-Treat (ITT) Population: all participants who were randomized and who received at least one dose of trial medication. 'Modified' implies that, in cases where there is is a discrepancy between randomized and actual treatment the analysis used the actual treatment received by the participant rather than the randomized treatment. | Posted | Number | Number of exacerbations per year | From randomization (Week 0) to Week 32 or if Early Withdrawal (EW) 4 weeks post last dose |
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| Secondary | Number of Clinically Significant Exacerbations Requiring Hospitalization (Including Intubation and Admittance to an Intensive Care Unit [ICU]) or ED Visits Per Year | Clinically significant exacerbations of asthma are defined as worsening of asthma which required use of systemic corticosteroids (IV or oral steroid like prednisone, for at least 3 days or a single intramuscular (IM) corticosteroid (CS) dose is required. For maintenance of systemic corticosteroids, at least double the existing maintenance dose for at least 3 days was required) and/or hospitalization and/or emergency department (ED) visits. The frequency of clinically significant exacerbations of asthma over the 32-week treatment period is expressed as the number of exacerbations per year. Analysis of the number of exacerbations performed using a negative binomial model with covariates of treatment group, baseline maintenance OCS therapy (OCS vs. no OCS), region, exacerbations in the year prior to the study (as an ordinal variable) and baseline % predicted FEV1, and with logarithm of time on treatment as an offset variable. | ITT Population | Posted | Number | Number of exacerbations per year | From randomization (Week 0) to Week 32 or if Early Withdrawal (EW) 4 weeks post last dose |
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| Secondary | Number of Clinically Significant Exacerbations Requiring Hospitalization (Including Intubation and Admittance to an ICU) Per Year | Clinically significant exacerbations of asthma is defined as worsening of asthma which required use of systemic corticosteroids (IV or oral steroid like prednisone, for at least 3 days or a single intramuscular (IM) corticosteroid (CS) dose is required. For maintenance of systemic corticosteroids, at least double the existing maintenance dose for at least 3 days was required) and/or hospitalization. The frequency of clinically significant exacerbations of asthma over the 32-week treatment period is expressed as the number of exacerbations per year. Analysis of the number of exacerbations performed using a negative binomial model with covariates of treatment group, baseline maintenance OCS therapy (OCS vs. no OCS), region, exacerbations in the year prior to the study (as an ordinal variable) and baseline % predicted FEV1, and with logarithm of time on treatment as an offset variable. | ITT Population | Posted | Number | Number of exacerbations per year | From randomization (Week 0) to Week 32 or if Early Withdrawal (EW) 4 weeks post last dose |
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| Secondary | Mean Change From Baseline in Clinic Pre-bronchodilator Forced Expiratory Volume in 1 Second (FEV1) at Week 32 | FEV1 is defined as the volume of air expelled from the lungs in 1 second. Pre-bronchodilator FEV1 measurements were taken by spirometry. The change from Baseline is defined as the difference between the value of the endpoint at the time point of interest and the baseline value. Analysis performed using mixed model repeated measures with covariates of baseline, region, baseline maintenance OCS therapy (OCS vs. no OCS), exacerbations in the year prior to the study (as an ordinal variable), treatment and visit, plus interaction terms for visit by baseline and visit by treatment group. | ITT Population. Only participants with a Baseline FEV1 available and at least one post-Baseline FEV1 measurement were analyzed. | Posted | Least Squares Mean | Standard Error | Milliliters (mL) | Baseline, Week 32 |
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| Secondary | Mean Change From Baseline in the St. George's Respiratory Questionnaire Total Score at Week 32 | The St. George's Respiratory Questionnaire is an established instrument, comprising 50 questions, evaluating symptoms, activity, and impacts; to measure Quality of Life in participants with diseases of airway obstruction and to elicit the participant's opinion of his/her health. The lowest possible value is zero and the highest possible value is 100. The higher values correspond to greater impairment in quality of life. The questionnaire was administered at Baseline (Visit 2) and at the Exit Visit (approximately 4 weeks after the last dose of study treatment). The change from baseline is defined as the difference between the value of the endpoint at the time point of interest and the baseline value. Analysis performed using analysis of covariance with covariates of baseline, region, baseline maintenance OCS therapy (OCS vs. no OCS), exacerbations in the year prior to the study (as an ordinal variable), baseline % predicted FEV1, and treatment. | ITT Population. Note that only participants with a Baseline and Week 32 assessment were included in the analysis. | Posted | Least Squares Mean | Standard Error | Scores on a scale | Baseline, Week 32 |
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On-treatment serious adverse events (SAEs) and non-serious AEs were defined as events occurring from the first dose of investigational product until 28 days after the last dose of investigational product, up to 32 weeks.
Serious adverse events (SAEs) and Non-serious AEs were collected in members of Intent-to-Treat (ITT) Population, comprised of all participants who were randomized and who received at least one dose of study medication.
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 | Placebo | Participants received placebo IV plus placebo SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. | 27 | 191 | 143 | 191 | ||
| EG001 | Mepolizumab 75 mg IV | Participants received mepolizumab 75 mg IV plus placebo SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. | 14 | 191 | 142 | 191 | ||
| EG002 | Mepolizumab 100 mg SC | Participants received placebo IV plus mepolizumab 100 mg SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study | 16 | 194 | 132 | 194 |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Asthma | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
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| Pulmonary fibrosis | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
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| Bronchitis | Infections and infestations | MedDRA | Systematic Assessment |
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| Herpes zoster | Infections and infestations | MedDRA | Systematic Assessment |
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| Clostridium difficile infection | Infections and infestations | MedDRA | Systematic Assessment |
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| Croup infectious | Infections and infestations | MedDRA | Systematic Assessment |
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| Diverticulitis | Infections and infestations | MedDRA | Systematic Assessment |
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| Influenza | Infections and infestations | MedDRA | Systematic Assessment |
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| Pneumonia | Infections and infestations | MedDRA | Systematic Assessment |
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| Postoperative wound infection | Infections and infestations | MedDRA | Systematic Assessment |
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| Urosepsis | Infections and infestations | MedDRA | Systematic Assessment |
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| Viral upper respiratory tract infection | Infections and infestations | MedDRA | Systematic Assessment |
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| Vulval abscess | Infections and infestations | MedDRA | Systematic Assessment |
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| Contusion | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
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| Fractured coccyx | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
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| Heat stroke | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
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| Inflammation of wound | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
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| Rib fracture | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
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| Road traffic accident | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
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| Tendon rupture | Injury, poisoning and procedural complications | MedDRA | Systematic Assessment |
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| Nephrolithiasis | Renal and urinary disorders | MedDRA | Systematic Assessment |
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| Calculus ureteric | Renal and urinary disorders | MedDRA | Systematic Assessment |
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| Calculus urethral | Renal and urinary disorders | MedDRA | Systematic Assessment |
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| Nephrogenic diabetes insipidus | Renal and urinary disorders | MedDRA | Systematic Assessment |
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| Renal colic | Renal and urinary disorders | MedDRA | Systematic Assessment |
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| Gastrointestinal motility disorder | Gastrointestinal disorders | MedDRA | Systematic Assessment |
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| Large intestine perforation | Gastrointestinal disorders | MedDRA | Systematic Assessment |
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| Oesophageal spasm | Gastrointestinal disorders | MedDRA | Systematic Assessment |
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| Intervertebral disc protrusion | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
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| Musculoskeletal chest pain | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
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| Spinal osteoarthritis | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
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| Hypersensitivity | Immune system disorders | MedDRA | Systematic Assessment |
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| Epilepsy | Nervous system disorders | MedDRA | Systematic Assessment |
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| Sciatica | Nervous system disorders | MedDRA | Systematic Assessment |
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| Angioedema | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
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| Dyshidrotic eczema | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
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| Atrial flutter | Cardiac disorders | MedDRA | Systematic Assessment |
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| Intracranial lipoma | Congenital, familial and genetic disorders | MedDRA | Systematic Assessment |
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| Gallbladder disorder | Hepatobiliary disorders | MedDRA | Systematic Assessment |
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| Major depression | Psychiatric disorders | MedDRA | Systematic Assessment |
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| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Nasopharyngitis | Infections and infestations | MedDRA | Systematic Assessment |
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| Headache | Nervous system disorders | MedDRA | Systematic Assessment |
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| Upper respiratory tract infection | Infections and infestations | MedDRA | Systematic Assessment |
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| Sinusitis | Infections and infestations | MedDRA | Systematic Assessment |
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| Bronchitis | Infections and infestations | MedDRA | Systematic Assessment |
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| Asthma | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
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| Oropharyngeal pain | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
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| Back pain | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
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| Arthralgia | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
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| Injection site reaction | General disorders | MedDRA | Systematic Assessment |
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| Cough | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
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| Fatigue | General disorders | MedDRA | Systematic Assessment |
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| Gastroenteritis | Infections and infestations | MedDRA | Systematic Assessment |
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| Pain in extremity | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
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| Diarrhoea | Gastrointestinal disorders | MedDRA | Systematic Assessment |
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| Influenza | Infections and infestations | MedDRA | Systematic Assessment |
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| Abdominal pain upper | Gastrointestinal disorders | MedDRA | Systematic Assessment |
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| Dizziness | Nervous system disorders | MedDRA | Systematic Assessment |
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| Nausea | Gastrointestinal disorders | MedDRA | Systematic Assessment |
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| Urinary tract infection | Infections and infestations | MedDRA | Systematic Assessment |
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| Pharyngitis | Infections and infestations | MedDRA | Systematic Assessment |
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| Eczema | Skin and subcutaneous tissue disorders | MedDRA | Systematic Assessment |
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| Hypertension | Vascular disorders | MedDRA | Systematic Assessment |
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| Nasal congestion | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
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| Gastrooesophageal reflux disease | Gastrointestinal disorders | MedDRA | Systematic Assessment |
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| Migraine | Nervous system disorders | MedDRA | Systematic Assessment |
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| Myalgia | Musculoskeletal and connective tissue disorders | MedDRA | Systematic Assessment |
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| Rhinitis | Infections and infestations | MedDRA | Systematic Assessment |
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| Rhinitis allergic | Respiratory, thoracic and mediastinal disorders | MedDRA | Systematic Assessment |
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| Hypersensitivity | Immune system disorders | MedDRA | Systematic Assessment |
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| Toothache | Gastrointestinal disorders | MedDRA | Systematic Assessment |
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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 |
|---|---|
| D001249 | Asthma |
| ID | Term |
|---|---|
| D001982 | Bronchial Diseases |
| D012140 | Respiratory Tract Diseases |
| D008173 | Lung Diseases, Obstructive |
| D008171 | Lung Diseases |
| D012130 | Respiratory Hypersensitivity |
| D006969 | Hypersensitivity, Immediate |
| D006967 | Hypersensitivity |
| D007154 | Immune System Diseases |
Not provided
Not provided
| Male |
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| American Indian or Alaskan Native |
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| Asian - Central/South Asian Heritage |
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| Asian - East Asian Heritage |
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| Asian - Japanese Heritage |
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| Asian - South East Asian Heritage |
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| White - Arabic/North African Heritage |
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| White - White/Caucasian/European Heritage |
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| Mixed Race |
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| Negative binomial model |
| <0.001 |
Hochberg procedure with a gamma parameter of 1 used for multiplicity adjustment. |
| Rate Ratio |
| 0.47 |
| 2-Sided |
| 95 |
| 0.35 |
| 0.64 |
Number of exacerbations per year in the mepolizumab 100 mg SC arm divided by the number of exacerbations per year in the placebo arm. |
| Superiority or Other |
| OG001 | Mepolizumab 75 mg IV | Participants received mepolizumab 75 mg IV plus placebo SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| OG002 | Mepolizumab 100 mg SC | Participants received placebo IV plus mepolizumab 100 mg SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study |
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| Mepolizumab 75 mg IV |
Participants received mepolizumab 75 mg IV plus placebo SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| OG002 | Mepolizumab 100 mg SC | Participants received placebo IV plus mepolizumab 100 mg SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study |
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| OG002 | Mepolizumab 100 mg SC | Participants received placebo IV plus mepolizumab 100 mg SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study |
|
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| OG001 | Mepolizumab 75 mg IV | Participants received mepolizumab 75 mg IV plus placebo SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study. |
| OG002 | Mepolizumab 100 mg SC | Participants received placebo IV plus mepolizumab 100 mg SC every 4 weeks (for a total of 8 doses), with the last dose at Week 28. The SC dose and the IV dose were administered into separate arms. A topical anaesthetic was permitted at the injection site to minimize discomfort, as needed. Rescue personnel and rescue medications (salbutamol/albuterol) /equipment were available throughout the study |
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