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NCT07280013PHASE1RECRUITING

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

Sponsor: C4 Therapeutics, Inc.

No open prediction endpoints

Endpoints are classified and published by ProgramSignal analysts.

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Key Facts

Study type
INTERVENTIONAL
Conditions
Multiple Myeloma (MM)
Interventions
Cemsidomide, Elranatamab
Enrollment
60 participants
Primary completion
Dec 2028
Study completion
Jun 2029
First posted
Dec 2025
Last updated
Apr 2026

Primary Endpoints (CT.gov)

Safety and tolerability of cemsidomide in combination with elranatamab

Time frame: Cycle 1 approximately 28 days

Safety and tolerability of cemsidomide in combination with elranatamab

Time frame: Baseline through 30 days after discontinuation of study treatment

Secondary Endpoints

Assess antimyeloma activity

Evaluate the PK of cemsidomide and elranatamab

Evaluate the PK of cemsidomide and elranatamab

Eligibility Criteria

Inclusion Criteria: * 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 Exclusion Criteria: * Active plasma cell leukemia, Smoldering multiple myeloma, POEMS Syndrome, systemic light chain amyloidosis, MDS * Stem cell transplant within 12 weeks prior to enrollment or active graft vs host disease * Participants with any active, uncontrolled bacterial, fungal, or viral infection * 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 * Inability or difficulty swallowing tablets, malabsorption syndrome, or any disease or medical condition significantly affecting gastrointestinal func

Read full criteria on CT.gov →

✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov