Testing a new drug for certain types of blood cancers

A Phase 1/1b Open-Label Dose-Escalation and Dose-Optimization Study of Bcl-2 Inhibitor BGB-21447 in Patients With Mature B-Cell Malignancies

Phase 1 Interventional BeiGene · NCT05828589

This study is testing a new drug for people with certain types of blood cancers to see how safe it is and what the best dose is.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment112 (estimated)
Ages18 Years and up
SexAll
SponsorBeiGene Industry-sponsored
Drugs / interventionsCAR-T, chimeric antigen receptor
Locations22 sites (Waukee, Iowa and 21 other locations)
Trial IDNCT05828589 on ClinicalTrials.gov

What this trial studies

This study evaluates the safety and tolerability of BGB-21447, a Bcl-2 inhibitor, in patients with relapsed or refractory non-Hodgkin lymphoma and chronic lymphocytic leukemia. It aims to determine the maximum tolerated dose, maximum administered dose, recommended Phase 2 dose, and the pharmacokinetic profile of the drug. The study is divided into two parts: the first focuses on finding the optimal dose for monotherapy, while the second optimizes this dose based on initial findings.

Who should consider this trial

Good fit: Ideal candidates include individuals with relapsed or refractory non-Hodgkin lymphoma or chronic lymphocytic leukemia who meet specific diagnostic criteria.

Not a fit: Patients with prior malignancies (other than the disease under study) or certain high-grade lymphomas may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with difficult-to-treat blood cancers.

How similar studies have performed: Other studies have shown promise with Bcl-2 inhibitors in treating similar conditions, indicating a potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria

1. Confirmed diagnosis (per World Health Organization \[WHO\] guidelines, unless otherwise noted) of one of the following:

   Cohort A1 and Cohort A2:
   1. R/R DLBCL (for Cohort A1 and Cohort A2.1)

      * High-grade B-cell lymphomas with translocations of MYC and Bcl-2 and/or Bcl-6 are not allowed in Cohort A1 but may be allowed in Cohort A2.1
   2. R/R FL (for Cohort A1 and Cohort A2.2)
   3. R/R MZL (for Cohort A1 and Cohort A2.2)
   4. Transformed B-cell NHL (for Cohort A1 only)
   5. Richter's transformation to DLBCL (for Cohort A1 only)
2. Measurable disease by computed tomography/magnetic resonance imaging.

Exclusion Criteria:

1. Prior malignancy (other than the disease under study) within the past 2 years, except for curatively treated basal or squamous skin cancer, superficial bladder cancer, carcinoma in situ of the cervix or breast, or localized Gleason score ≤ 6 prostate cancer or lentigo maligna melanoma that has been curatively resected
2. Known central nervous system involvement by lymphoma/leukemia
3. Prior autologous stem cell transplant \< 3 months before the first dose of study drug. Or prior chimeric antigen receptor T-cell (CAR-T) therapy \< 3 months before the first dose of study drug
4. Prior allogeneic stem cell transplant.
5. Major surgery \< 4 weeks before the first dose of study treatment

NOTE: Other protocol-defined Inclusion/Exclusion criteria may apply.

Where this trial is running

Waukee, Iowa and 21 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Relapsed Non-Hodgkin LymphomaRefractory Non-Hodgkin LymphomaRelapsed Chronic Lymphocytic LeukemiaRefractory Chronic Lymphocytic LeukemiaRelapsed Follicular LymphomaRelapsed Marginal Zone LymphomaRelapse Diffuse Large B Cell LymphomaRelapsed Small Lymphocytic Lymphoma
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.