Clinical trial No longer in our active list Phase 1 Interventional Ages 18 and up

Evaluating ABBV-525 for treating B-cell cancers in adults

Official title: A First-in-Human Study of ABBV-525 (MALT1 Inhibitor) in B-Cell Malignancies

Run by AbbVie · NCT05618028 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing a new oral medication called ABBV-525 to see if it can safely help adults with B-cell cancers.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorAbbVie
Industry-sponsored
Drugs / interventionsCAR-T, chimeric antigen receptor
Locations32 sites (Los Angeles, California and 31 other locations)
Trial IDNCT05618028 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults with third-line or later treatment B-cell malignancies such as diffuse large B-cell lymphoma or chronic lymphocytic leukemia.

Probably not a fit

Patients who have not received prior treatments or those with early-stage B-cell 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 study evaluates the safety, tolerability, pharmacokinetics, and preliminary efficacy of ABBV-525, an investigational oral medication, in adult participants with B-cell malignancies. The trial consists of three parts: dose escalation, dose optimization, and dose expansion, where participants will receive varying doses of ABBV-525. Approximately 100 adults will be enrolled across multiple sites worldwide, with the study expected to last up to 64 months.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced B-cell malignancies.

How similar studies have gone: Other studies have shown promise with similar investigational therapies for B-cell malignancies, indicating potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Dose Escalation (Part 1) Only: Participants with a documented diagnosis of one of the following third line or later of treatment (3L)+ mature B-cell malignancies, from the World Health Organization (WHO)-defined histologies as defined in the protocol.
* Dose Optimization (Part 2) Only: Participants with documented diagnosis of chronic lymphocytic leukemia (CLL) who are 3L+, +/- cysteine-to-serine point mutation at residue 481 of BTK-domain active site (C481S with histology based on WHO criteria, with measurable disease requiring treatment as defined by the International Workshop on Chronic Lymphocytic Leukemia (iwCLL).
* Dose Expansion (Part 3) Only: Participants with documented diagnosis of non-germinal center B cell (GCB) Diffuse large B-cell lymphoma (DLBCL) who are 3L+ chimeric antigen receptor T-cells (CAR-T)/Hematopoietic cell transplant (HCT) relapsed/refractory (R/R) and/or ineligible with histology based on WHO criteria, with measurable disease requiring treatment.
* Participant has an Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) of 0 or 1.
* Participant has a life expectancy \>= 12 weeks.
* Adequate hematological and hepatic function as defined in the protocol.
* Must have archival or freshly collected tumor tissue for correlative studies before study enrollment.
* Participants with prior central nervous system (CNS) disease that has been effectively treated may be eligible.
* Participants with resolved coronavirus disease 2019 (COVID-19) infection are eligible.

Exclusion Criteria:

* Known active CNS disease, or primary CNS lymphoma.
* Known bleeding disorders.
* Known history of stroke or intracranial hemorrhage within 12 months prior to first dose of study treatment.
* Uncontrolled active systemic infection, or active cytomegalovirus infection.
* Active hepatitis B or C infection.
* Known history of human immunodeficiency virus (HIV).
* Known active COVID-19 infection. Participant must not have signs/symptoms associated with COVID-19 infection or known exposure to a confirmed case of COVID-19 infection during screening. If participant has signs/symptoms suggestive of COVID-19 infection, the participant must have a negative molecular (eg, polymerase chain reaction) test or 3 negative antigen test results at least 24 hours apart.

Where it's running

  • University of California Los Angeles /ID# 246357
    Los Angeles, California, United States
    Recruiting
  • Yale University School of Medicine /ID# 259081
    New Haven, Connecticut, United States
    Recruiting
  • Mount Sinai Medical Center-Miami Beach /ID# 248251
    Miami Beach, Florida, United States
    Recruiting
  • Fort Wayne Medical Oncology and Hematology, Inc /ID# 250113
    Fort Wayne, Indiana, United States
    Recruiting
  • Indiana University Melvin and Bren Simon Comprehensive Cancer Center /ID# 259872
    Indianapolis, Indiana, United States
    Recruiting
  • START Midwest /ID# 252359
    Grand Rapids, Michigan, United States
    Recruiting
Show 26 more locations
  • Memorial Sloan Kettering Cancer Center-Koch Center /ID# 245459
    New York, New York, United States
    Recruiting
  • Levine Cancer Institute /ID# 246363
    Charlotte, North Carolina, United States
    Recruiting
  • University Of Cincinnati Medical Center /ID# 262288
    Cincinnati, Ohio, United States
    Recruiting
  • University of Texas MD Anderson Cancer Center /ID# 245463
    Houston, Texas, United States
    Recruiting
  • University of Utah Health Hospital /ID# 259924
    Salt Lake City, Utah, United States
    Recruiting
  • Northwest Medical Specialties - Tacoma /ID# 260376
    Tacoma, Washington, United States
    Recruiting
  • Monash University /ID# 246366
    Clayton, Victoria, Australia
    Recruiting
  • The Alfred Hospital /ID# 248592
    Melbourne, Victoria, Australia
    Recruiting
  • UZ Gent /ID# 246462
    Gent, Oost-Vlaanderen, Belgium
    Recruiting
  • Universitair Ziekenhuis Leuven /ID# 246461
    Leuven, Vlaams-Brabant, Belgium
    Recruiting
  • CHRU Lille - Hopital Claude Huriez /ID# 252054
    Lille, Nord, France
    Recruiting
  • IUCT Oncopole /ID# 259409
    Toulouse Cedex 9, Occitanie, France
    Recruiting
  • Charite Universitaetsklinikum Berlin - Campus Virchow /ID# 252062
    Berlin, Germany
    Recruiting
  • Shamir Medical Center /ID# 257711
    Beer Ya'akov, HaMerkaz, Israel
    Recruiting
  • The Chaim Sheba Medical Center /ID# 251442
    Ramat Gan, Tel-Aviv, Israel
    Recruiting
  • Hadassah Medical Center-Hebrew University /ID# 251441
    Jerusalem, Yerushalayim, Israel
    Recruiting
  • Rabin Medical Center /ID# 257665
    Petah Tikva, Israel
    Recruiting
  • Institut Català d'Oncologia (ICO) - L'Hospitalet /ID# 246537
    L'Hospitalet de Llobregat, Barcelona, Spain
    Recruiting
  • Hospital Universitario Vall d'Hebron /ID# 245475
    Barcelona, Spain
    Recruiting
  • Hospital Clinic de Barcelona /ID# 246543
    Barcelona, Spain
    Recruiting
  • Hospital Universitario Ramon y Cajal /ID# 246540
    Madrid, Spain
    Recruiting
  • Hospital Universitario 12 de Octubre /ID# 246538
    Madrid, Spain
    Recruiting
  • Leeds Teaching Hospitals NHS Trust /ID# 245470
    Leeds, West Yorkshire, United Kingdom
    Recruiting
  • The Royal Marsden NHS Foundation Trust /ID# 250324
    London, United Kingdom
    Recruiting
  • The Christie Hospital /ID# 250325
    Manchester, United Kingdom
    Recruiting
  • Tulane Cancer Center Clinic /ID# 249586
    New Orleans, Louisiana, United States
    Completed

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.