Efficacy and Safety of M281 in Adults With Warm Autoimmune Hemolytic Anemia: A Multicenter, Randomized, Double-blind, Placebo-controlled Study With a Long-term Open-label Extension
试验速览
- 阶段
- 2 期
- 状态
- 进行中(未招募)
- 入组人数
- 118
- 试验地点
- 296
- 主要终点
- Percentage of Participants Achieving Durable Response of Improvement in Hemoglobin (Hgb)
研究概览
简要总结
The main purpose of this study is to evaluate the efficacy and safety of M281 in participants with warm autoimmune hemolytic anemia (wAIHA).
详细描述
The study consists of a 24-week double-blind, placebo control period, a 144-week open-label extension period and follow-up period of 8 weeks after last study drug administration. Eligible participants will be randomized to placebo or nipocalimab (2 dose levels) during the double-blind period and nipocalimab (2 dose levels) during the open-label extension period.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Participants greater than or equal to (>=)18 years of age
- •Have been diagnosed with warm autoimmune hemolytic anemia (wAIHA) for at least 3 months, and are currently receiving treatment for wAIHA or have previously received treatment for wAIHA (treatment-naive participants are not eligible)
- •Participants must be able to understand and voluntarily provide written informed consent to participate in the study and comply with all study procedures
排除标准
- •Participants must not be pregnant or breastfeeding
- •Participants must not have other clinically relevant abnormalities currently or in their history that the Investigator would deem them ineligible to participate
- •Have been diagnosed with cold antibody autoimmune hemolytic anemia (AIHA), cold agglutinin syndrome, mixed type (that is, warm and cold) AIHA, or paroxysmal cold hemoglobinuria
研究组 & 干预措施
M281 administered every 4 weeks (open-label extension period)
Participants will receive M281 administered every 4 weeks during the 144 weeks open-label extension period.
干预措施: M281 (Drug)
M281 administered every 4 weeks (double-blind period)
Participants will receive M281 administered every 4 weeks alternating with placebo every 4 weeks during the 24 weeks double-blind period.
干预措施: Placebo (Drug)
Placebo administered every 2 weeks (double-blind period)
Participants will receive M281 matching placebo administered every 2 weeks during the 24 weeks double-blind period.
干预措施: Placebo (Drug)
M281 administered every 2 weeks (open-label extension period)
Participants will receive M281 administered every 2 weeks during the 144 weeks open-label extension period.
干预措施: M281 (Drug)
M281 administered every 2 weeks (double-blind period)
Participants will receive M281 administered every 2 weeks during the 24 weeks double-blind period.
干预措施: M281 (Drug)
M281 administered every 4 weeks (double-blind period)
Participants will receive M281 administered every 4 weeks alternating with placebo every 4 weeks during the 24 weeks double-blind period.
干预措施: M281 (Drug)
结局指标
主要结局
Percentage of Participants Achieving Durable Response of Improvement in Hemoglobin (Hgb)
时间窗: Up to Week 20 of the double-blind period
次要结局
- Change From Baseline in the Total Score From the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) Scale at the Time of Durable Response(Baseline (Day 1, Week 0) through Week 24)
- Number of Participants That Simultaneously Attain Normal Lactate Dehydrogenase, Haptoglobin, and Indirect Bilirubin Levels at a Minimum of 3 Consecutive Visits After Baseline(Baseline (Day 1, Week 0) through Week 24)
- Change From Baseline in the Total Score From the FACIT-Fatigue Scale at the end of the Double-blind Period (Week 24)(Baseline (Day 1, Week 0) through Week 24 of the double-blind period)
- Time to Hgb Response(Baseline (Day 1, Week 0) through Week 24)
- Change from Baseline in Average Daily Dose of Prednisone or Equivalent(Baseline (Day 1, Week 0) and at Week 24)
- Change From Baseline in Reticulocyte Count(Baseline (Day 1, Week 0) through Week 24)
- Change From Baseline in Hemolytic Marker - Haptoglobin(Baseline (Day 1, Week 0) through Week 24)
- Percentage of Participants who Experience at Least a 2 g/dL Increase in Hgb From Baseline and Normalization of Lactate Dehydrogenase, Haptoglobin, and Indirect Bilirubin at any Time During the Study(Baseline (Day 1, Week 0) through Week 24)
- Percentage of Participants who Experience at Least a 2 g/dL Increase in Hgb From Baseline and Normalization of Lactate Dehydrogenase, Haptoglobin, and Indirect Bilirubin at 3 Consecutive Visits(Baseline (Day 1, Week 0) through Week 24)
- Percentage of Participants who Achieve the Durable Response in Improvement of Hgb During the Double-blind Period and Maintain that Response for Up to 24 Weeks, Without the Need of Rescue Therapy(Up to 24 weeks)
- Change From Baseline in Hemolytic Marker - Lactate Dehydrogenase(Baseline (Day 1, Week 0) through Week 24)
- Mean Time During Which the Primary Endpoint is Maintained(Baseline (Day 1, Week 0) through Week 24)
- Change From Baseline in Hgb Concentration(Baseline (Day 1, Week 0) through Week 24)
- Change From Baseline in Hemolytic Marker - Indirect Bilirubin(Baseline (Day 1, Week 0) through Week 24)
- Change From Baseline in the Total Score, Item Scores, and Impact and Experience Domains From the FACIT-Fatigue Scale(Baseline (Day 1, Week 0) through Week 24 of the double-blind period)
- Absolute Change from Baseline in Average Daily Dose of Prednisone or Equivalent(Baseline (Day 1, Week 0) and at Week 24)
- Change From Baseline in EuroQol 5-dimension 5-level ( EQ-5D-5L) Scale Score(Baseline (Day 1, Week 0) through Week 24)
- Hgb Range at Steady State(Baseline (Day 1, Week 0) through Week 24)
- Change From Baseline in Medical Outcomes Study Short Form 36 Item Health Survey Version 2 Acute (SF-36v2) Score(Baseline (Day 1, Week 0) through Week 24)
- Patient-reported Status As Assessed by Patient Global Impression of Change (PGIC) Scale Score(At Week 24)
- Change From Baseline in Patient Global Impression of Severity (PGIS)(Baseline (Day 1, Week 0) through Week 24)
- Percentage of participants who Achieve Corticosteroid Reduction to less than or equal to (<=) 7.5 milligrams per day (mg/day) of Oral Prednisone (or Equivalent), Among Participants with Prednisone or Equivalent greater than (>) 7.5 mg/day at Baseline(At Week 24)
