Clinical trial Recruiting at 6 sites Observational Ages 18 and up

Evaluating zanubrutinib for treating Waldenström Macroglobulinemia

Official title: A Phase 4, Observational Study Evaluating the Efficacy and Safety of the Bruton Tyrosine Kinase (BTK) Inhibitor Zanubrutinib in Patients With Waldenström Macroglobulinemia

Run by BeOne Medicines · NCT05640102 · Data updated 2026-11-12

This study is testing how well zanubrutinib works and how safe it is for people with Waldenström macroglobulinemia, especially those with certain genetic traits and from different backgrounds.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment111 (estimated)
SponsorBeOne Medicines
Industry-sponsored
Drugs / interventionszanubrutinib
Locations8 sites (Huntsville, Alabama and 7 other locations)
StatusRecruiting
StartedMarch 3, 2023
Main results expectedDecember 2026
Study endsDecember 2027
Registry record updatedAugust 7, 2026
Trial IDNCT05640102 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals with a confirmed diagnosis of Waldenström macroglobulinemia who are currently being treated with or are planned to be prescribed zanubrutinib.

Probably not a fit

Patients with evidence of disease transformation or other active malignancies may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to assess the efficacy and safety of zanubrutinib in patients diagnosed with Waldenström macroglobulinemia, focusing on those with specific genetic mutations and from diverse racial and ethnic backgrounds. It utilizes a hybrid approach, combining retrospective and prospective data collection to create a comprehensive registry. The study will gather clinical profiles and treatment outcomes to enhance understanding of zanubrutinib's benefits in these populations.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the effectiveness of zanubrutinib for diverse patient groups with Waldenström macroglobulinemia.

How similar studies have gone: While this study focuses on a specific population, similar observational studies have shown promise in understanding treatment efficacy in diverse groups.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Clinical and definitive histologic diagnosis of WM
* Measurable disease, as defined by a serum immunoglobulin M (IgM) level \> 0.5 g/dL at the time of zanubrutinib initiation
* Started treatment with zanubrutinib, has been treated with zanubrutinib, or is planned to be prescribed zanubrutinib for the treatment of WM
* Bone marrow specimens with central MYD88 test results of:

  1. Cohort 1: MYD88 L265P mutation; enrollment of TN participants will be stopped in each racial and ethnic participant group when the required numbers of participants in the group are met
  2. Cohort 2: non-L265P MYD88 mutation(s) and MYD88WT

Exclusion Criteria:

* Evidence of disease transformation before the first dose of zanubrutinib
* Evidence of other non-Hodgkin Lymphoma (NHL) subtypes
* Prior or concurrent active malignancy ≤ 2 years before the first dose of zanubrutinib, except for malignancies that, in the investigator's opinion, will not obscure the interpretation of safety or efficacy results
* Concurrent participation in another therapeutic clinical study while receiving zanubrutinib, although the participant may be eligible depending on the status of the interventional study after discussion with the Medical Monitor or designee on an individual basis

Where it's running

  • Clearview Cancer Institute
    Huntsville, Alabama, United States
    Recruiting
  • South Alabama Medical Science Foundation Mitchell Cancer Institute
    Mobile, Alabama, United States
    Recruiting
  • City of Hope National Medical Center
    Duarte, California, United States
    Recruiting
  • Los Angeles Cancer Network (Lacn)
    Glendale, California, United States
    Recruiting
  • Eisenhower Medical Center, Lucy Curci Cancer Center
    Rancho Mirage, California, United States
    Recruiting
  • Comprehensive Cancer Centers of Nevada
    Las Vegas, Nevada, United States
    Recruiting
Show 2 more locations
  • Hattiesburg Hematology and Oncology Clinic
    Hattiesburg, Mississippi, United States
    Active not recruiting
  • Pan American Oncology Trials, Llc
    Rio Piedras, Puerto Rico
    Active not recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.