Mezigdomide plus elranatamab for relapsed or refractory multiple myeloma
Official title: A Phase 1b/2a, Multicenter, Open-label Study to Determine the Recommended Dose and Schedule, and Evaluate the Safety and Preliminary Efficacy of Mezigdomide in Combination With Elranatamab in Participants With Relapsed and/or Refractory Multiple Myeloma
Run by Celgene · NCT06988488 · Data updated 2026-11-12
This test tries adding mezigdomide to elranatamab (with dexamethasone) to see if it is safe and can help adults with relapsed or refractory multiple myeloma who have had 1–4 prior treatments (eligibility differs by phase).
Quick facts
| Phase | Phase1; Phase2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 62 (estimated) |
| Sponsor | Celgene Industry-sponsored |
| Drugs / interventions | CART, elranatamab |
| Locations | 22 sites (Birmingham, Alabama and 21 other locations) |
| Status | Recruiting |
| Started | October 7, 2025 |
| Main results expected | May 31, 2027 |
| Study ends | June 3, 2027 |
| Registry record updated | September 2, 2026 |
| Trial ID | NCT06988488 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18) with measurable relapsed or refractory multiple myeloma, ECOG 0–1, who meet the trial's prior-treatment windows (phase 1: 2–4 prior lines; phase 2: 1–3 prior lines) and who have not previously received mezigdomide, T-cell engagers, or most BCMA-targeted therapies are the intended candidates.
✕Probably not a fit
Patients who previously received mezigdomide, prior T-cell engaging therapies, or recent BCMA-targeted treatments (with the limited exception of autologous BCMA CAR-T given >6 months earlier), or those with poor performance status or significant comorbidities, are unlikely to qualify or benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This open-label phase 1/2 study combines mezigdomide, a novel cereblon modulator, with elranatamab, a BCMA-directed T-cell engager, plus dexamethasone. Phase 1 uses dose-escalation to determine the recommended phase 2 dose and schedule, and phase 2 evaluates preliminary safety and efficacy. Eligible participants have measurable relapsed or refractory multiple myeloma and generally good performance status, with specific prior-treatment windows differing by phase. Key exclusions include prior mezigdomide, prior T-cell engaging therapies, and most prior BCMA-targeted treatments except autologous BCMA CAR-T given more than 6 months earlier.
Why it matters
Potential benefit: If successful, the combination could offer a new treatment option that produces deeper or longer responses for people with relapsed or refractory multiple myeloma.
How similar studies have gone: BCMA-targeting T-cell engagers such as elranatamab have shown single-agent activity in relapsed myeloma and IMiD/CELMoD agents have supporting rationale, but the specific combination with mezigdomide is relatively new with limited published data so far.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age ≥18 with history of relapsed and refractory multiple myeloma (RRMM) treated with 2 to 4 prior lines of anti-myeloma therapy (Phase 1) or 1 to 3 prior lines of anti-myeloma therapy (Phase 2). * Measurable MM by local laboratory. * Eastern Cooperative Oncology Group performance status (ECOG PS) of 0 to 1. * Adherence to contraception requirements. Exclusion Criteria: * Prior treatment with mezigdomide. * Prior treatment with T cell engaging or T cell engager (TCE). * Prior treatment with B cell-maturation antigen (BCMA)-targeting therapy, with the exception of participants who have received autologous BCMA-targeted CART-cell therapy\> 6 months from the start of study therapy * Other protocol-defined Inclusion/Exclusion criteria apply.
Where it's running
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University of Alabama at Birmingham
Birmingham, Alabama, United States Recruiting -
Yale New Haven Hospital-Smilow Cancer Center
New Haven, Connecticut, United States Recruiting -
Hackensack University Medical Center
Hackensack, New Jersey, United States Recruiting -
University of Texas MD Anderson Cancer Center
Houston, Texas, United States Recruiting -
Arthur J E Child Comprehensive Cancer Centre
Calgary, Alberta, Canada Recruiting -
QEII Health Sciences Centre - Victoria General Site
Halifax, Nova Scotia, Canada Recruiting
Show 16 more locations
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Princess Margaret Cancer Centre
Toronto, Ontario, Canada Recruiting -
Tongji University - Shanghai Fourth People's Hospital
Shanghai, Shanghai Municipality, China Recruiting -
Universitaetsklinikum Carl Gustav Carus Dresden
Dresden, Germany Recruiting -
Universitaetsklinikum Hamburg-Eppendorf
Hamburg, Germany Recruiting -
Universitaetsklinikum Heidelberg
Heidelberg, Germany Recruiting -
Evangelismos General Hospital of Athens
Athens, Attikí, Greece Recruiting -
Alexandra General Hospital of Athens
Athens, Attikí, Greece Recruiting -
St. Olavs Hospital
Trondheim, Sør-Trøndelag, Norway Recruiting -
Sykehusapoteket Ull
Oslo, Norway Recruiting -
Hospital Universitario Marqués de Valdecilla
Santander, Cantabria, Spain Recruiting -
Hospital Universitario de Salamanca - Complejo Asistencial Universitario de Salamanca
Salamanca, Spain Recruiting -
University College London Hospital
London, England, United Kingdom Recruiting -
Royal Marsden Hospital (Sutton)
London, Sutton, United Kingdom Recruiting -
The Christie NHS Foundation Trust
Manchester, United Kingdom Recruiting -
Local Institution - 0026
Vancouver, British Columbia, Canada Not yet recruiting -
Local Institution - 0030
Suzhou, Jiangsu, China Not yet recruiting
Study contacts
- Study coordinator: BMS Clinical Trials Contact Center www.BMSClinicalTrials.com
- Email: Clinical.Trials@bms.com
- Phone: 855-907-3286
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.