A Phase 3, Multi-Center, Randomized, Double-Blind, Placebo-Controlled, Study of Fostamatinib Disodium in the Treatment of wAIHA

Brief Summary
The primary objective of this study is to assess the efficacy of fostamatinib in subjects with warm antibody autoimmune hemolytic anemia (wAIHA).
Brief Title
A Phase 3, Multi-Center, Randomized, Double-Blind, Placebo-Controlled, Study of Fostamatinib Disodium in the Treatment of wAIHA
Completion Date
Completion Date Type
Actual
Conditions
Warm Antibody Autoimmune Hemolytic Anemia
Eligibility Criteria
Inclusion Criteria:

1. Subject must have a diagnosis of primary or secondary warm Antibody Autoimmune Hemolytic Anemia (wAIHA) as documented by a positive direct antiglobulin test (DAT) specific for anti-IgG or anti-IgA.
2. Have failed or not tolerated at least one prior wAIHA treatment regimen, including steroids, rituximab, azathioprine, cyclophosphamide, cyclosporine, MMF, danazol, vincristine, ESA or splenectomy (folate, iron or other supplements do not fulfill this criterion).
3. Have haptoglobin \<LLN or total bilirubin \>ULN or lactate dehydrogenase (LDH) \>ULN.
4. At screening, subject's hemoglobin level must be ≤9 g/dL OR if hemoglobin value \>9 g/dL and \<10 g/dL, subject must be on an allowed wAIHA treatment AND the subject must have documented symptoms related to anemia (e.g., weakness, dizziness, fatigue, shortness of breath, chest pain).
5. Karnofsky performance status (KPS) ≥70.
6. Subject's concurrent treatment for wAIHA may consist of no more than two of any of the following agents: azathioprine, steroids, ESAs, mycophenolate mofetil, dapsone or danazol at a stable dose

Exclusion Criteria:

1. Subject with other types of Antibody Autoimmune Hemolytic Anemia (AIHA) (e.g., cold antibody AIHA, cold agglutinin syndrome, mixed type AIHA, or paroxysmal cold hemoglobinuria).
2. Subject has AIHA secondary to autoimmune disease, including systemic lupus erythematosus (SLE), or lymphoid malignancy if the underlying disease is not stable or is not well-controlled on current therapy, per investigator medical judgement.
3. Subject has uncontrolled or poorly controlled hypertension, defined as systolic blood pressure ≥135 mmHg or diastolic blood pressure ≥85 mmHg, whether or not the subject is receiving anti-hypertensive treatment.
4. Subject has one or more of the following laboratory abnormalities at screening: neutrophil count of \<1,000/μL or platelet count of \<30,000/μL, unless due to Evans syndrome; transaminase levels (i.e., alanine aminotransferase \[ALT\] or aspartate aminotransferase \[AST\]) \>1.5 x ULN.
5. Has documented active hepatitis B or hepatitis C infection or HIV infection.
Inclusion Criteria
Inclusion Criteria:

1. Subject must have a diagnosis of primary or secondary warm Antibody Autoimmune Hemolytic Anemia (wAIHA) as documented by a positive direct antiglobulin test (DAT) specific for anti-IgG or anti-IgA.
2. Have failed or not tolerated at least one prior wAIHA treatment regimen, including steroids, rituximab, azathioprine, cyclophosphamide, cyclosporine, MMF, danazol, vincristine, ESA or splenectomy (folate, iron or other supplements do not fulfill this criterion).
3. Have haptoglobin \<LLN or total bilirubin \>ULN or lactate dehydrogenase (LDH) \>ULN.
4. At screening, subject's hemoglobin level must be ≤9 g/dL OR if hemoglobin value \>9 g/dL and \<10 g/dL, subject must be on an allowed wAIHA treatment AND the subject must have documented symptoms related to anemia (e.g., weakness, dizziness, fatigue, shortness of breath, chest pain).
5. Karnofsky performance status (KPS) ≥70.
6. Subject's concurrent treatment for wAIHA may consist of no more than two of any of the following agents: azathioprine, steroids, ESAs, mycophenolate mofetil, dapsone or danazol at a stable dose

Gender
All
Gender Based
false
Keywords
wAIHA
Warm Antibody Autoimmune Hemolytic Anemia
Warm Autoimmune Hemolytic Anemia
Healthy Volunteers
No
Last Update Submit Date
Maximum Age
100 Years
Minimum Age
18 Years
NCT Id
NCT03764618
Org Class
Industry
Org Full Name
Rigel Pharmaceuticals
Org Study Id
C-935788-057
Overall Status
Completed
Phases
Phase 3
Primary Completion Date
Primary Completion Date Type
Actual
Official Title
A Phase 3, Multi-Center, Randomized, Double-Blind, Placebo-Controlled, Study of Fostamatinib Disodium in the Treatment of Warm Antibody Autoimmune Hemolytic Anemia
Primary Outcomes
Outcome Description
Proportion of subjects achieving a hemoglobin level ≥ 10 g/dL with an increase from Baseline in hemoglobin level of ≥ 2 g/dL on 3 consecutive available visits during the 24-week treatment period.
Outcome Measure
Durable Hemoglobin Response
Outcome Time Frame
24 Weeks
Secondary Outcomes
Outcome Description
Proportion of subjects with a hemoglobin response by Week 24.
Outcome Time Frame
24 weeks
Outcome Measure
A Hemoglobin Response by Week 24
Outcome Description
Proportion of subjects with change from baseline in hemoglobin level of 2 g/dL or greater.
Outcome Time Frame
24 weeks
Outcome Measure
Change From Baseline in Hemoglobin Level of 2 g/dL or Greater
Outcome Description
Change in mean hemoglobin from baseline to end of treatment.
Outcome Time Frame
24 weeks
Outcome Measure
Change in Hemoglobin From Baseline to End of Treatment
Outcome Description
Proportion of subjects free of rescue AIHA regimens used after Week 4.
Outcome Time Frame
24 weeks
Outcome Measure
Use of Rescue Antibody Autoimmune Hemolytic Anemia (AIHA) Regimens Use After Week 4
Outcome Description
Change from Baseline to Week 24 in Functional Assessment of Chronic Illness Therapy - Fatigue scale (FACIT-F). The FACIT-F scale is a short, 13-item, easy to administer tool that measures an individual's level of fatigue during their usual daily activities over the past week. Each item is rated using a 5-point Likert-type scale. The scale range is 0 to 52, with 0 being the worst possible score and 52 being the best possible score indicating no fatigue. Total Score = \[Sum of item scores\] x \[N of items in subscale\] ÷ \[N of items answered\].
Outcome Time Frame
24 weeks
Outcome Measure
Change in Functional Assessment of Chronic Illness Therapy - Fatigue Scale (FACIT-F)
Start Date
Start Date Type
Actual
Status Verified Date
First Submit Date
First Submit QC Date
Std Ages
Adult
Older Adult
Maximum Age Number (converted to Years and rounded down)
100
Minimum Age Number (converted to Years and rounded down)
18
Investigators
Investigator Type
Principal Investigator
Investigator Name
Irina Murakhovskaya
Investigator Email
imurakho@montefiore.org
Investigator Phone
IMURAKHO