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Clinical trials and research at C4 Therapeutics, Inc.

• 2Clinical trials
• 6Countries

All recruiting trials (2)

• Cemsidomide plus dexamethasone for relapsed or refractory multiple myeloma

  This will try cemsidomide with dexamethasone to see if it works and is safe for adults with relapsed or refractory multiple myeloma who have had several prior treatments.

  Recruiting at 33 sites Phase 2 C4 Therapeutics, Inc. · Huntsville, Alabama and 59 other locations · NCT07284758

• Cemsidomide plus elranatamab for relapsed or refractory multiple myeloma

  This will try giving cemsidomide pills together with elranatamab injections to see if the combination is safe and helps people with relapsed or refractory multiple myeloma.

  Recruiting at 12 sites Phase 1 C4 Therapeutics, Inc. · Gilbert, Arizona and 18 other locations · NCT07280013

Quick answers

How many clinical trials run by C4 Therapeutics, Inc. are recruiting right now?

2, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

In 6 countries. The most sites are in United States (2 trials), France (1 trial), Italy (1 trial), Poland (1 trial), Spain (1 trial). Each study page lists its sites and which ones are recruiting.

What phases are they in?

Phase 2: 1, Phase 1: 1. Trials with no phase listed are usually device, behavioural or observational studies.

How do I join one?

Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.

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