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The program priority for execution of this clinical trial changed prior to enrollment of the first patient. The study was not withdrawn due to any safety concerns.
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The purpose of this study is to explore the safety and tolerability of BGE-117 and gain information on the effectiveness of different doses when given to patients 65 years or older with moderate to severe anemia following major hip surgery. BGE-117 is given once daily in a capsule by mouth for up to 12 weeks. Patients are also given oral iron supplements. Anemia following surgery has been associated with decreases in patient functioning. This study will measure improvement of anemia, as well as various patient functioning.
BGE-117 is being investigated to determine whether it is an effective treatment for moderate to severe anemia in older individuals (65 years of age or older) after major hip surgery. Currently, there are limited treatment options for postoperative anemia, in this patient population, available in the USA, Australia, or New Zealand. The increased risk of morbidity, mortality, and poor quality of life in the population of older individuals with postoperative anemia highlights the unmet medical need for a therapeutic agent that can alleviate physical and functional deficits in these patients. Study BGE-117-203 will be the first clinical study conducted in older patients with postoperative anemia. The study will collect important safety, efficacy, and dosing information across this population of patients to provide key data for designing further clinical studies in the development programs for BGE-117.
The study will enroll 2 populations of patients requiring hip surgery:
These individuals must also meet the inclusion criterion for a hemoglobin level of ≤ 10 g/dL and ≥ 7.0 g/dL from postoperative Day 1 to postoperative Day 7.
The total planned enrollment for the study is approximately 192 subjects. The first 96 subjects who are enrolled will be randomized in a 1:2:1 ratio to 1 of 3 treatment groups:
A Safety Review Meeting will be conducted when approximately 48 subjects have completed 4 weeks of treatment. Enrollment will remain ongoing for up to 96 subjects pending the Safety Review Meeting. If no safety concerns are identified that would preclude the inclusion of additional subjects, the subsequent 96 subjects who would be dosed up to 16 mg will be allowed to proceed without interruption. Additional safety reviews will be completed after 96 subjects and 144 subjects have completed 4 weeks of treatment.
The subsequent 96 subjects enrolled will be randomized in a 1:2:1 ratio to 1 of 3 treatment groups:
At study completion, the goal is to have approximately 48 subjects in each of the 4 treatment groups (placebo, BGE-117 4 mg, BGE-117 8 mg, and BGE-117 16 mg) with each treatment group having a similar number of subjects with acute hip fracture or elective hip surgery.
The Treatment Period is 12 weeks, and all enrolled subjects will be followed for a total of 6 months after surgery (14 weeks after cessation of IP) to monitor hemoglobin progression and functional outcome as well as to continue to monitor for any potential AEs.
There will be no dose increases, however, dose decreases will be allowed if the rate of increase in hemoglobin exceeds the protocol defined limits. The goal is to maintain an approximate rate of hemoglobin increase of ≤ 1.5 g/dL every 2 weeks, and a maximum hemoglobin level of 12.0 g/dL. Dosing will be considered completed and no additional IP will be administered after the maximum hemoglobin value is confirmed.
Subjects will be randomized within 24 hours of meeting the hemoglobin entry criteria. The baseline hemoglobin value for the primary endpoint analysis will be the last (most recent) hemoglobin level obtained via central laboratory before administration of the first dose of blinded IP on Day 1. Treatment will start as soon as the subject has been randomized and is able to take oral medications. Subjects enrolled in the study will continue once daily treatment for a total of 12 weeks. Supplemental iron, provided by the Sponsor, will be administered orally as ferrous sulfate 325 mg 3 times per week (e.g., every Monday, Wednesday, and Friday).
Subjects may be discharged from the hospital as soon as it is medically appropriate, but they will continue to be seen at the study site at the following visits: Visit 2 (Day 1), Visit 4 (Day 15), Visit 8 (Day 43), and Visit 14 (Day 85). Home visits (including visits to rehabilitation facilities, assisted living facilities, and nursing home facilities) will be conducted at Visits 3, 5, 6, 7, 9, 10, 11, 12, and 13 to assess vital signs and collect a central blood sample for CBC and reticulocytes. There will be a home study visit approximately 14 days after administration of the last dose of IP (Visit 15). Additional home visits will be completed approximately 4 months after surgery on Day 127 (Visit 16), and approximately 5 months after surgery on Day 155 (Visit 17). A final Follow up Visit at the study site will be completed approximately 6 months after surgery on Day 183 (Visit 18).
All enrolled subjects must be able to personally give informed consent. Consent by guardian or proxy will not be permitted. Screening will include a full physical examination and baseline laboratory evaluation. Consent and screening procedures may be done preoperatively or postoperatively based on type of surgery. If a subject consents and meets eligibility criteria preoperatively, they must also meet eligibility criteria postoperatively to remain eligible for enrollment.
If a subject does not consent preoperatively (e.g., hip fracture), they can consent postoperatively. If enrolled, subjects will receive their first dose of IP at the study site. They will be instructed to take IP orally once daily, approximately 1 hour before breakfast for up to 83 additional days. Study medication will be administered in addition to oral iron supplements and standard of care as deemed appropriate by the subject's treating physicians. Oral iron in the form of ferrous sulfate 325 mg (supplied by the Sponsor) will be administered 3 times per week after an overnight fast at the same time-of-day as IP. Subjects will be monitored throughout the study for AEs and all relevant efficacy outcomes. Blood samples will be obtained periodically for safety laboratory tests, biomarkers of BGE 117 activity, inflammation, lipid, and iron status, and plasma pharmacokinetics (PK). Subjects will be followed until 6 months after their surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| BGE-117 4mg | Experimental | BGE-117 4mg, Capsules, Oral-administered Once Per Day up to 12 weeks Ferrous sulfate 325mg, Tablets, Oral-administered 3 Times Per Week up to 12 weeks |
|
| BGE-117 8mg | Experimental | BGE-117 8mg, Capsules, Oral-administered Once Per Day up to 12 weeks Ferrous sulfate 325mg, Tablets, Oral-administered 3 Times Per Week up to 12 weeks |
|
| BGE-117 16mg | Experimental | BGE-117 16mg, Capsules, Oral-administered Once Per Day up to 12 weeks Ferrous sulfate 325mg, Tablets, Oral-administered 3 Times Per Week up to 12 weeks |
|
| Placebo | Placebo Comparator | Matching Placebo Capsules, Oral-administered Once Per Day up to 12 weeks Ferrous sulfate 325mg, Tablets, Oral-administered 3 Times Per Week up to 12 weeks |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| BGE-117, 4mg | Drug | BGE-117, 4mg Capsules |
|
| Measure | Description | Time Frame |
|---|---|---|
| Time to 2.0 g/dL Increase in Hemoglobin Level | The time to a 2.0 g/dL increase in hemoglobin level over the postoperative baseline hemoglobin level. The primary comparison is the high-dose group compared to placebo. Note: Baseline hemoglobin level is the postoperative hemoglobin level most recently obtained before the start of investigational product administration. | Up to Day 85 |
| Measure | Description | Time Frame |
|---|---|---|
| Hemoglobin Level from Baseline | Change in hemoglobin level from baseline. | Day 8, 15, 22, 29, 36, 43, 57, and 85 |
| Hemoglobin Level from Nadir Hemoglobin | Change in hemoglobin level from nadir hemoglobin. |
| Measure | Description | Time Frame |
|---|---|---|
| Days Alive and At Home (DAH) | Number of days that the subject has been at home. Home is defined as the subject's place of residence before surgery. | Day 90 |
| Days Alive and At Home (DAH) | Number of days that the subject has been at home. Home is defined as the subject's place of residence before surgery. |
Inclusion Criteria:
Alert and able to voluntarily provide written, signed, and dated informed consent
≥ 65 years of age at the time of completing informed consent
Major hip surgery, that has occurred within the previous 7 days or is scheduled to occur within the next 7 days, defined as:
Postoperative anemia defined as a hemoglobin level ≤ 10.0 g/dL and ≥ 7.0 g/dL from postoperative Day 1 to postoperative Day 7
For hip fracture subjects only: score between 1 and 5 on the Clinical Frailty Scale (CFS) at baseline before fracture
Estimated glomerular filtration rate (eGFR) of ≥ 60 mL/min/m2 as measured by the Modification of Diet in Renal Disease (MDRD) method
Current or planned perioperative use of mechanical or chemical antithrombotic prophylaxis in accordance with local standard of care
Exclusion Criteria:
Any current unstable medical condition that the investigator considers would put the subject at unacceptable risk, affect study compliance, or prevent the understanding of the study's objectives or investigational procedures or possible consequences; for example, increased risk of falls that is judged to be clinically significant, clinically significant autonomic dysfunction, active infections requiring antimicrobial treatment
History of thromboembolic disease in the previous 6 months
Other medically significant injuries (e.g., head injuries, internal bleeding, or other as judged by the study investigator) that occur concurrently with hip fractures that complicate endpoint assessments, subject safety, and/or study conduct
History of seizures within the previous 2 years
History of coagulation disorder (e.g., Factor V Leiden, idiopathic thrombocytopenic purpura) or use of concomitant medications that increase the risk of thromboembolic events (TEEs) as judged by the study investigator
Class III or IV heart failure, as defined by the New York Heart Association (NYHA) functional classification system
QTcF > 500 msec or QTcF > 530 msec in subjects with bundle branch block. A triplicate electrocardiogram (ECG) should be performed if the initial ECG indicates prolonged QTc interval using the automated or manually calculated QTcF value.
Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) levels ≥ 3 × the upper limit of normal (ULN) (Historical standard-of-care laboratory results may be used to confirm eligibility if collected within 14 days before informed consent)
Bilirubin level > 1.5 × ULN (isolated bilirubin level > 1.5 × ULN is acceptable if bilirubin is fractionated and direct bilirubin is < 35%) (Historical standard of care laboratory results may be used to confirm eligibility if collected within 14 days before informed consent)
Recent or planned administration of an erythropoietin stimulating agent (ESA) or a HIF-PHI within 12 weeks of informed consent
History of malignant hypertension or current uncontrolled hypertension (average systolic blood pressure ≥ 160 mmHg and/or average diastolic blood pressure ≥ 100 mmHg based on 3 readings). Blood pressure should be measured after 5 minutes of unattended rest, with 2 repeated readings 1 to 2 minutes apart
History of diabetic retinopathy
History or diagnosis of any of the following:
Planned intravenous (IV) iron therapy scheduled to start after informed consent and to continue during the expected time of participation in the study
Presence of acute kidney injury (AKI) based upon the Kidney Disease: Improving Global Outcomes (KDIGO) guidelines:
Chronic bleeding condition such as active gastrointestinal (GI) bleeding
Inability or unwillingness to adhere to protocol specified visits, procedures, and contraception requirements
Receipt of an investigational drug or device within 30 days before informed consent
Previously screened for or enrolled in the BGE-117-203 study
Known allergy to or intolerance of BGE-117, or other components of the IP (BGE-117 or matching placebo)
Known allergy to ferrous sulfate preparations
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Renal Research | Gosford | New South Wales | 2250 | Australia |
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| Ferrous Sulfate | Dietary Supplement | Ferrous Sulfate, 325mg Tablets |
|
| Matching Placebo | Other | Matching Placebo to BGE-117 Capsules |
|
| BGE-117, 12mg | Drug | BGE-117, 12mg Capsules |
|
| Day 8, 15, 22, 29, 36, 43, 57, and 85 |
| Time to 1.0 g/dL Increase in Hemoglobin Level | The time to a 1.0 g/dL increase in hemoglobin level over the postoperative baseline hemoglobin level. Note: Baseline hemoglobin level is the postoperative hemoglobin level most recently obtained before the start of investigational product administration. | Up to Day 85 |
| Time to 3.0 g/dL Increase in Hemoglobin Level | The time to a 3.0 g/dL increase in hemoglobin level over the postoperative baseline hemoglobin level. Note: Baseline hemoglobin level is the postoperative hemoglobin level most recently obtained before the start of investigational product administration. | Up to Day 85 |
| Hemoglobin Level Return to Baseline for Elective Hip Replacement | Proportion of elective hip replacement subjects who return to preoperative baseline hemoglobin level. | Day 8, 15, 22, 29, 36, 43, 57, and 85 |
| 1.0 g/dL Improvement in Hemoglobin Level | Proportion of subjects with a 1.0 g/dL improvement in hemoglobin level from the postoperative baseline hemoglobin value | Day 8, 15, 22, 29, 36, 43, 57, and 85 |
| 2.0 g/dL Improvement in Hemoglobin Level | Proportion of subjects with a 2.0 g/dL improvement in hemoglobin level from the postoperative baseline hemoglobin value | Day 8, 15, 22, 29, 36, 43, 57, and 85 |
| 3.0 g/dL Improvement in Hemoglobin Level | Proportion of subjects with a 3.0 g/dL improvement in hemoglobin level from the postoperative baseline hemoglobin value | Day 8, 15, 22, 29, 36, 43, 57, and 85 |
| All-Cause Mortality | The rate of all-cause mortality. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Hospital Readmission - Any Cause | The rate of hospital readmissions for any cause. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Hospital Readmission - Surgery-Related | The rate of hospital readmissions for causes related to surgery. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Surgical Complications | The rate of surgical complications (e.g., dislocation, nonunion, infection, chronic pain, posttraumatic arthritic changes, avascular necrosis). | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Surgical Complications by Clavien-Dindo Classification | The rate of surgical complications as defined by the Clavien-Dindo Classification of ≥ Grade II Defined as follows: Grade II: Requiring pharmacological treatment with drugs other than such allowed for grade I complications. Blood transfusions and total parenteral nutrition are also included. Grade III-IIIB: Requiring surgical, endoscopic or radiological intervention. Intervention not under general anesthesia. Intervention under general anesthesia. Grade IV-IVb: Life-threatening complication (including CNS complications) requiring IC/ICU-management. Single organ dysfunction (including dialysis). Multiorgan dysfunction. Grade V: Death of a patient. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Change in Ambulation Status | The time to change in ambulation status (e.g., from ambulation with human assistance to ambulation with assistive device, or to independent ambulation). | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Days Alive and At Home (DAH) | Number of days that the subject has been at home. Home is defined as the subject's place of residence before surgery. | Day 30 |
| Days Alive and At Home (DAH) | Number of days that the subject has been at home. Home is defined as the subject's place of residence before surgery. | Day 60 |
| Analysis of Pharmacokinetic Parameters to Develop a Population Pharmacokinetic Model for BGE-117 (AUC(0-24)/Dose) | Single blood samples for pharmacokinetic analysis will be collected just prior to first dose and on Days 43 and 85. Time of last dose and time of blood draw will be collected and these data will be used to attempt to develop a population pharmacokinetic model of BGE-117. If possible, AUC(0-24)/dose will be determined. Age, gender and renal function will be explored as covariates. | Day 1, 43, and 85 |
| Analysis of Pharmacokinetic Parameters to Develop a Population Pharmacokinetic Model for BGE-117 (Clearance) | Single blood samples for pharmacokinetic analysis will be collected just prior to first dose and on Days 43 and 85. Time of last dose and time of blood draw will be collected and these data will be used to attempt to develop a population pharmacokinetic model of BGE-117. If possible, clearance will be determined. Age, gender and renal function will be explored as covariates. | Day 1, 43, and 85 |
| Analysis of Pharmacokinetic Parameters to Develop a Population Pharmacokinetic Model for BGE-117 (Volume of Distribution) | Single blood samples for pharmacokinetic analysis will be collected just prior to first dose and on Days 43 and 85. Time of last dose and time of blood draw will be collected and these data will be used to attempt to develop a population pharmacokinetic model of BGE-117. If possible, volume of distribution will be determined. Age, gender and renal function will be explored as covariates. | Day 1, 43, and 85 |
| Analysis of Pharmacokinetic Parameters to Develop a Population Pharmacokinetic Model for BGE-117 (Half-Life) | Single blood samples for pharmacokinetic analysis will be collected just prior to first dose and on Days 43 and 85. Time of last dose and time of blood draw will be collected and these data will be used to attempt to develop a population pharmacokinetic model of BGE-117. If possible, half-life will be determined. Age, gender and renal function will be explored as covariates. | Day 1, 43, and 85 |
| Subjects Requiring a Dose Decrease | The proportion of subjects requiring a decrease in the investigational product dose. Dose decreases are allowed for safety, tolerability, and to maintain an approximate rate of hemoglobin increase of ≤ 1.5 g/dL every 2 weeks, and a maximum hemoglobin level of 12.0 g/dL. | Up to Day 85 |
| Mean Dose at End of Study | The mean dose at the end of the treatment period including any dose decreases and/or termination of dose. | Day 85 |
| Disposition after Hospital Discharge | The location where the subject is discharged following discharge from the hospital (e.g., home, rehabilitation center, nursing-care facility, etc.) | Up to Day 85 |
| Hemoglobin Response as a Function of Iron Status and Hepcidin | The rate of hemoglobin level increase as a function of subject baseline iron status and hepcidin. | Up to Day 85 |
| Hemoglobin Response as a Function of Clinical Outcome Assessment | The rate of hemoglobin level increase as a function of the results from defined clinical outcome assessments (QoR-15 questionnaire, VAS-pain related to the surgical site, WHODAS, EQ-5D-5L, 6MWT, TUG test) | Up to Day 85 |
| Quality of Recovery-15 (QoR-15) Questionnaire | Change in QoR-15 Questionnaire compared to baseline. The QoR-15 questionnaire is a 15 item questionnaire used to evaluate postoperative quality of recovery in the areas of pain, physical comfort, physical independence, psychological support and emotional state. Each question is scored from 0 (very poor recovery) to 10 (excellent recovery). A higher score is considered a better outcome. | Day 8, 15, 22, and 29 |
| Visual Analog Scale for Pain (VAS-Pain) | Change in VAS-Pain compared to baseline. The VAS-Pain is used to assess the subject's pain at the surgical site at that moment in time. The scale is from 0 (no pain) to 10 (extreme pain). A lower score is considered a better outcome. | Up to Day 15 |
| World Health Organization Disability Assessment Schedule (WHODAS) Questionnaire | Change in WHODAS Questionnaire compared to baseline. The WHODAS is a general health status questionnaire designed to produce standardized disability levels by elucidating the subject's perception of health on several domains, including cognition, mobility, self-care, getting along, life activities (household and work), and participation. The questionnaire contains 36 questions that ask the subject to recall difficulty in performing activities he/she felt during the previous 30 days. The scale is from 1 (none) to 5 (extreme or cannot do). A lower score is considered a better outcome. | Day 29, 57, and 85 |
| European Quality of Life Five Day (EQ-5D-5L) Questionnaire | Change in EQ-5D-5L Questionnaire compared to baseline. The EQ-5D-5L questionnaire is a 5 question tool used to assess treatment effects by measuring the gains (or losses) in subject-reported health status. The questionnaire assesses five dimensions: mobility, self care, usual activities, pain/discomfort, and anxiety/depression. Each item is scored on a scale from 1 (no problems) to 5 (extreme or cannot perform). A lower score is considered a better outcome. | Day 15, 43, and 85 |
| 6-minute Walk Test (6MWT) Distance | Change in 6MWT Distance compared to baseline. Increased distance is considered a better outcome. | Day 15, 43, and 85 |
| Timed Up and Go (TUG) Test | Change in TUG test time compared to baseline. The TUG test is used to assess mobility and consists of the subject standing up from a chair, walking 3 meters away, turning, walking back 3 meters, and sitting down again. A shorter time is considered a better outcome. | Day 15, 43, and 85 |
| Safety Analyses (Treatment-Emergent Adverse Events) - Incidence | Safety analyses will be performed based on the corresponding safety set. The incidence of treatment-emergent AEs (TEAEs) will be calculated overall by system organ class, preferred term, and treatment group for each cohort and treatment group. The number and percentage of subjects with TEAEs will be further summarized by severity and relationship to the investigational product and dose level. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Safety Analyses (Treatment-Emergent Adverse Events) - Number of Events | Safety analyses will be performed based on the corresponding safety set. The number of events of treatment-emergent AEs (TEAEs) will be calculated overall by system organ class, preferred term, and treatment group for each cohort and treatment group. The number of subjects with TEAEs will be further summarized by severity and relationship to the investigational product and dose level. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Safety Analyses (Treatment-Emergent Adverse Events) - Percentage | Safety analyses will be performed based on the corresponding safety set. The percentage of treatment-emergent AEs (TEAEs) will be calculated overall by system organ class, preferred term, and treatment group for each cohort and treatment group. The percentage of subjects with TEAEs will be further summarized by severity and relationship to the investigational product and dose level. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Safety Analyses (Adverse Events) - Individual Summary | Adverse events related to investigational product, AEs leading to withdrawal, SAEs, and deaths will be summarized/listed as part of the overall analysis of safety. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Safety Analyses (Quantitative Safety Data) - Clinical Laboratory Tests | Clinical laboratory tests (complete blood count, HemoCue, serum clinical chemistries, coagulation, serum erythropoietin levels, hemoglobin electrophoresis, inflammation panel, iron panel, folate and vitamin B12, lipid panel, thyroid, and urinalysis) findings will be summarized by treatment group and visit. Descriptive statistics will be calculated for quantitative safety data as well as for the difference from baseline, if applicable. Frequency counts will be compiled for the classification of qualitative safety data. The baseline for safety data will be defined as the last value prior to the first dose of investigational product. Potentially clinically important findings will also be summarized or listed. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Safety Analyses (Quantitative Safety Data) - Vital Signs | Vital signs (systolic and diastolic blood pressure and pulse rate) findings will be summarized by treatment group and visit. Descriptive statistics will be calculated for quantitative safety data as well as for the difference from baseline, if applicable. Frequency counts will be compiled for the classification of qualitative safety data. The baseline for safety data will be defined as the last value prior to the first dose of investigational product. Potentially clinically important findings will also be summarized or listed. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Safety Analyses (Quantitative Safety Data) - Wells Score for DVT | The Well's Criteria will be used to evaluate for the presence of deep vein thrombosis (DVT) and summarized by treatment group and visit. Descriptive statistics will be calculated for quantitative safety data as well as for the difference from baseline, if applicable. Frequency counts will be compiled for the classification of qualitative safety data. The baseline for safety data will be defined as the last value prior to the first dose of investigational product. Potentially clinically important findings will also be summarized or listed. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Safety Analyses (Quantitative Safety Data) - Electrocardiogram (ECG) | Electrocardiogram (ECG) will be performed with heart rate, PR, QRS, and QT (pre-corrected) intervals will be measured and QTcF will be calculated. ECG findings will be summarized by treatment group and visit. Descriptive statistics will be calculated for quantitative safety data as well as for the difference from baseline, if applicable. Frequency counts will be compiled for the classification of qualitative safety data. The baseline for safety data will be defined as the last value prior to the first dose of investigational product. Potentially clinically important findings will also be summarized or listed. | First Dose to Day 85 and Follow-up (Up to Day 183) |
| Day 120 |
| Days Alive and At Home (DAH) | Number of days that the subject has been at home. Home is defined as the subject's place of residence before surgery. | Day 183 |
| Hemoglobin Level from Baseline | Change in hemoglobin level from baseline. | Day 99, 127, 155 and 183 |
| Hemoglobin Level from Nadir Hemoglobin | Change in hemoglobin level from nadir hemoglobin. | Day 99, 127, 155 and 183 |
| Subjects Who are Non-anemic per WHO Criteria | The proportion of subjects who are non-anemic by WHO criteria (Hemoglobin of ≥12 g/dL for women, ≥13 g/dL for men). | Day 99, 127, 155 and 183 |
| Hemoglobin Level Return to Baseline for Elective Hip Replacement | Proportion of elective hip replacement subjects who return to preoperative baseline hemoglobin level. | Day 99, 127, 155, and 183 |
| Subjects with 2.0 g/dL Increase in Hemoglobin Level | Proportion of subjects with a ≥2.0 g/dL increase in hemoglobin level. | Day 99, 127, 155, and 183 |
| Visual Analog Scale for Pain (VAS-Pain) | Change in VAS-Pain compared to baseline. The VAS-Pain is used to assess the subject's pain at the surgical site at that moment in time. The scale is from 0 (no pain) to 10 (extreme pain). A lower score is considered a better outcome. | Day 183 |
| World Health Organization Disability Assessment Schedule (WHODAS) Questionnaire | Change in WHODAS Questionnaire compared to baseline. The WHODAS is a general health status questionnaire designed to produce standardized disability levels by elucidating the subject's perception of health on several domains, including cognition, mobility, self-care, getting along, life activities (household and work), and participation. The questionnaire contains 36 questions that ask the subject to recall difficulty in performing activities he/she felt during the previous 30 days. The scale is from 1 (none) to 5 (extreme or cannot do). A lower score is considered a better outcome. | Day 183 |
| European Quality of Life Five Day (EQ-5D-5L) Questionnaire | Change in EQ-5D-5L Questionnaire compared to baseline. The EQ-5D-5L questionnaire is a 5 question tool used to assess treatment effects by measuring the gains (or losses) in subject-reported health status. The questionnaire assesses five dimensions: mobility, self care, usual activities, pain/discomfort, and anxiety/depression. Each item is scored on a scale from 1 (no problems) to 5 (extreme or cannot perform). A lower score is considered a better outcome. | Day 183 |
| Occurrence of Wound Dehiscence | The rate of occurrence for wound dehiscence from the index surgery to the end of investigational product administration. | Up to Day 85 |
| Occurrence of Surgical Site Infections (SSIs) | The rate of occurrence for SSIs from the index surgery to the end of investigational product administration. | Up to Day 85 |
| Bone Healing at Surgical Site | The level of bone healing at the surgical site compared to baseline by radiographic evidence. | Day 183 |
| Scar Formation/Quality | The scar formation/quality assessed at the end of IP administration. The assessment is done by Vancouver scar scale and the Patient and Observer Scar Assessment Scale (POSAS). The Vancouver scar scale assesses scar vascularity, pigmentation, pliability and height. A lower score is considered a better outcome. The POSAS assesses the scar by pain, itch, thickness, color, stiffness and irregularity. A lower score is considered a better outcome. | Up to Day 85 |
| Activity Level and Sleep Quality | The subjects' activity level and sleep quality are measured by a wearable activity monitor. These data may be algorithmically transformed into a number of exploratory endpoints, including, but not limited to, time spent in light, moderate, or vigorous activity, or in combinations thereof such as moderate to vigorous activity; time spent sedentary or in locomotion; estimated calories expended; total motion in each spatial axis or in all spatial axes; number of steps taken; time spent sleeping; the number of or length of awakenings during a sleep period; and the proportion of each overall sleep period (including temporary awakenings) spent in sleep or time in each overall sleep period (including temporary awakenings) spent in sleep. | Up to Day 183 |
| Iron Status Effect | Evaluate the effect of iron status at baseline on the response to investigational product administration and change in iron parameters throughout the study. | Up to Day 183 |
| Inflammation Markers Effect | Evaluate the effect of Markers of Inflammation (hepcidin, C-Reactive Protein [CRP], interleukin [IL-1, IL-6], and tumor necrosis factor alpha [TNF- α]) at baseline on the response to investigational product administration and change in inflammatory markers during investigational product administration. | Up to Day 85 |
| Postoperative Iron Stores Effect | Evaluate the effect of status of postoperative iron stores on the response to investigational product administration throughout the study. | Up to Day 183 |
| Patient-Reported Outcomes and Anemia Response Correlation | Evaluate correlations of various functional patient-reported outcomes (e.g., WHODAS, EQ-5D-5L, etc.) to the therapeutic response (e.g., hemoglobin increase) at various timepoints. | Up to Day 183 |
| ID | Term |
|---|---|
| D000740 | Anemia |
| ID | Term |
|---|---|
| D006402 | Hematologic Diseases |
| D006425 | Hemic and Lymphatic Diseases |
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| ID | Term |
|---|---|
| C020748 | ferrous sulfate |
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