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ALXN1830 in Patients With Warm Autoimmune Hemolytic Anemia

Phase 2
Withdrawn
Conditions
Warm Autoimmune Hemolytic Anemia
Registration Number
NCT04256148
Lead Sponsor
Alexion Pharmaceuticals, Inc.
Brief Summary

The main objective of the study is to evaluate the safety and efficacy of ALXN1830 compared to placebo in adult participants with warm autoimmune hemolytic anemia (WAIHA).

Detailed Description

This study will consist of a 4-week Screening period, 13-week Primary Treatment period, and optional Extended Treatment period (up to 2 years).

Recruitment & Eligibility

Status
WITHDRAWN
Sex
All
Target Recruitment
Not specified
Inclusion Criteria
  • Primary or secondary WAIHA, diagnosed at least 6 weeks prior to Screening
  • Failed or not tolerated at least 1 prior WAIHA treatment regimen, for example, corticosteroids, rituximab, azathioprine, cyclophosphamide, cyclosporine, mycophenolate mofetil, danazol, or vincristine
  • Hemoglobin < 10 g/dL and ≥ 6 g/dL
  • Positive direct antiglobulin test (Coombs) (IgG positive, complement C3 [C3] positive or negative)
  • Evidence of active hemolysis including any of the following: a) Lactate dehydrogenase (LDH) > upper limit of normal (ULN), b) Haptoglobin < lower limit of normal (LLN), c) Indirect bilirubin > ULN
  • Total IgG > 500 mg/dL

Key

Exclusion Criteria
  • Human immunodeficiency virus (HIV) infection (positive HIV-1 or HIV-2 antibody test)
  • Positive hepatitis B surface antigen (HBsAg) or hepatitis C antibody test

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Primary Outcome Measures
NameTimeMethod
Percentage Of Participants With ≥ 2 Grams (g)/Deciliter (dL) Increase In Hemoglobin (Hgb) From BaselineBaseline (Day 1) through Day 92
Secondary Outcome Measures
NameTimeMethod
Total Number Of Units Of Packed Red Blood Cells (pRBCs) TransfusedDay 15 through Day 92
Mean Change From Baseline To Day 92 In Quality Of Life, Assessed Via Functional Assessment Of Cancer Therapy Anemia (FACT-AN) QuestionnaireBaseline, Day 92
Mean Change From Baseline To Day 92 In Quality Of Life, Assessed Via EuroQoL 5 Dimension 5 Level (EQ-5D-5L) QuestionnaireBaseline, Day 92
Number Of Weekly Hgb Measurements With Change From Baseline ≥ 2 g/dLDay 1 through Day 92
Number Of Participants Needing New WAIHA Rescue Medication Or Increase In Dose Of WAIHA MedicationDay 15 through Day 92

Trial Locations

Locations (1)

Alexion Study Site

🇺🇸

Whittier, California, United States

Alexion Study Site
🇺🇸Whittier, California, United States

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