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NCT07280013RecruitingPhase 1

A Study to Learn About the Effects of Cemsidomide in Combination With Elranatamab in Relapsed/Refractory Multiple Myeloma Subjects

A Phase 1B, Open-label, Multicenter Study to Evaluate the Safety and Preliminary Efficacy of Cemsidomide in Combination With Elranatamab in Relapsed/Refractory Multiple Myeloma Subjects

Source: ClinicalTrials.gov · Last updated 30 Oct 2026

Brief summary (registry, in English)

The main purpose of the study is to understand the safety and tolerability of cemsidomide when given along with elranatamab in subjects with relapsed or refractory multiple myeloma. The first part of the study will evaluate different dose levels of cemsidomide in combination with elranatamab in a limited number of subjects. Approximately 3 different dose levels of cemsidomide in combination with elranatamab may be explored. Once a dose level is determined safe, additional subjects may be enrolled through expansion of the dose level. This expansion will provide further exploration of the safety and evaluation of preliminary antimyeloma activity. Cemsidomide will be taken orally each cycle for 14 days on/14 days off (1 cycle=28 days). Elranatamab will be administered by subcutaneous injection twice a month. Dexamethasone will be administered weekly until a confirmed response but no longer than 4 cycles.

Status (registry)
Recruiting
Phase (registry)
Phase 1
Study type
Interventional
Enrollment
60 (estimated)
First submitted
1 Dec 2025
Start date
6 Feb 2026
Primary completion date
Dec 2028
Lead sponsor
C4 Therapeutics, Inc.
NCT number
NCT07280013

What you commit to

  • Study type: Interventional · Phase 1
  • Planned participants: 60
  • From 6 Feb 2026 to the primary completion date, Dec 2028
  • 19 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Stem cell transplant within 12 weeks prior to enrollment or active graft vs host disease
  • Prior treatment with a BCMA-directed TCE or BCMA-directed CAR-T therapy
  • Administration with an investigational product within 30 days preceding the first dose of study intervention

Other illness

  • Active plasma cell leukemia, Smoldering multiple myeloma, POEMS Syndrome, systemic light chain amyloidosis, MDS
  • Participants with any active, uncontrolled bacterial, fungal, or viral infection
  • Inability or difficulty swallowing tablets, malabsorption syndrome, or any disease or medical condition significantly affecting gastrointestinal function

Who the study is looking for

  • Diagnosis of multiple myeloma as defined by IMWG criteria
  • Measurable disease based on IMWG criteria
  • Received 2-4 prior lines of therapy (escalation part) and 1-3 prior lines of therapy (expansion part) for multiple myeloma, consisting of at least 1 immunomodulatory drug (i.e., IKZF 1/3 degrader)
  • ECOG performance status 0-2

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (19)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Winship Cancer Institute, Emory University
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AtlantaUnited StatesRecruiting
University of Maryland Greenbaum Comprehensive Cancer Center
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BaltimoreUnited StatesRecruiting
Perlmutter Cancer Center at NYU Langone Hospital
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BrooklynUnited StatesRecruiting
Ohio State University Comprehensive Cancer Center
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ColumbusUnited StatesNot yet recruiting
Baylor University Medical Center
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DallasUnited StatesNot yet recruiting
Duke Cancer Center
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DurhamUnited StatesRecruiting
Banner MD Anderson Cancer Center
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GilbertUnited StatesRecruiting
START | Midwest
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Grand RapidsUnited StatesRecruiting
Houston Methodist Hospital
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HoustonUnited StatesRecruiting
Indiana University
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IndianapolisUnited StatesNot yet recruiting
Dartmouth Hitchcock Medical Center
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LebanonUnited StatesRecruiting
Norton Cancer Institute St. Matthews
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LouisvilleUnited StatesRecruiting
Loyola University Medical Center
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MaywoodUnited StatesNot yet recruiting
University of Miami
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MiamiUnited StatesNot yet recruiting
Memorial Sloan-Kettering Cancer Center
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New YorkUnited StatesRecruiting
University of Nebraska
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OmahaUnited StatesNot yet recruiting
UC Davis Comprehensive Cancer Center
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SacramentoUnited StatesRecruiting
Huntsman Cancer Institute/University of Utah
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Salt Lake CityUnited StatesNot yet recruiting
UCLA Health, Jonsson Comprehensive Cancer Center
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Santa MonicaUnited StatesRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.