Efficacy, Safety and Pharmacokinetics of Rilzabrutinib in Patients With Warm Autoimmune Hemolytic Anemia (wAIHA)

Investigation of an Oral Treatment in Patients with Warm Autoimmune Hemolytic Anemia

Not Recruiting
18 years or above
All
Phase 2
22 participants needed

Study Overview

All participants will receive rilzabrutinib orally. The screening period is up to 28 days, followed by a treatment period of 24 weeks for Part A. Participants who complete Part A and are deemed eligible for Part B can continue in the Core Part B period followed by an Extended Part B period for up to 253 weeks.

There will be a 7-day safety follow-up period after receiving the last dose of study medication either in Part A (for those not eligible for Part B or early terminated) or Part B. In addition, each participant will be asked to attend an EOT-Core Part B visit when the last participant completes 52 weeks in Core Part B. The Extended Part B period will last for up to 253 weeks.

Eligibility Criteria

You may be eligible for this study if you meet the following criteria:

  • Conditions: Warm Autoimmune Hemolytic Anemia (wAIHA)
  • Age: 18 years or above
  • Gender: All

Inclusion Criteria:

  • Male and female patients with a confirmed diagnosis of primary wAIHA or systemic lupus erythematosus (SLE)-associated wAIHA (without other SLE-related manifestations apart from cutaneous and musculoskeletal manifestations)
  • Participants who have previously failed to maintain a sustained response after treatment with corticosteroids.
  • Eastern Cooperative Oncology Group (ECOG) performance status grade 2 or lower.
  • Up-to-date vaccination status as per local guidelines.
  • Body mass index (BMI) >17.5 and <40 kg/m2
  • All contraceptive use by men and women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.

Core Part B

  • Evidence of treatment efficacy to rilzabrutinib as defined by achieving overall response during Part A.
  • Completion of Part A treatment period (24 weeks). Extended Part B
  • Completion of Core Part B period.

Exclusion Criteria:

  • Clinically significant medical history or ongoing chronic illness that would jeopardize the safety of the participant or compromise the quality of the data derived from his or her participation in the study as determined by the Investigator.
  • Participants with medical history of lymphoma, leukemia, or any malignancy within the past 5 years except for basal cell or squamous epithelial carcinomas of the skin that have been resected with no evidence of metastatic disease for the past 3 years.
  • Secondary wAIHA from any cause including drugs, lymphoproliferative disorders (low-count monoclonal B-cell lymphocytosis is allowed), infectious or autoimmune disease, or active hematologic malignancies. Participants with positive antinuclear antibodies but without a definitive diagnosis of an autoimmune disease are allowed.
  • Myelodysplastic syndrome.
  • Uncontrolled or active HBV infection: Patients with positive HBsAg and/or HBV DNA.
  • HIV infection.
  • Concurrent treatment with other experimental drugs or participation in another clinical trial with any investigational drug within 30 days or 5 half-lives, whichever is greater, prior to treatment start.
  • Known allergy to any of the study medications, their analogues, or excipients in the various formulations of any agent.

Part B only

  • Participants who receive any therapy during Part A known to be active in wAIHA.
  • Presence of unacceptable side effect(s) or toxicity associated with rilzabrutinib such that there is an unfavorable risk-benefit assessment for continued treatment with rilzabrutinib in the opinion of the Investigator and/or Sponsor.

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

This study investigates the effects of an investigational medication on patients with warm autoimmune hemolytic anemia (wAIHA). The purpose of this study is to understand the safety, effectiveness, and how the body processes the investigational medication in individuals with wAIHA.

Participants will take the investigational medication orally. The study includes different parts: Part A involves a 24-week treatment period, followed by Part B, which may extend up to 253 weeks for those eligible. The study will also include a follow-up period to monitor safety after participants stop taking the medication.

  • Who can participate: Adults with a confirmed diagnosis of primary wAIHA or wAIHA associated with systemic lupus erythematosus (SLE) can participate. Participants should have previously not responded well to corticosteroids and have an ECOG performance status of grade 2 or lower. They must also have a BMI between 17.5 and 40 kg/m2.
  • Study details: Participants will take an oral investigational medication. They will be monitored for treatment response and safety. Those eligible may continue to an extended phase of the study.
Updated on 21 May 2025. Study ID: NCT05002777