A Study to Evaluate the Efficacy of Cemsidomide + Dexamethasone in Participants With Relapsed/Refractory Multiple Myeloma

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorC4 Therapeutics, Inc.

About this trial

This is a Phase 2, open-label, single-arm, multicenter study to assess the antimyeloma activity and further characterize the safety, tolerability, PK, and PD of cemsidomide in combination with dexamethasone in participants with relapsed/refractory multiple myeloma (r/r MM).

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Be willing and able to provide signed informed consent for the study.

Age ≥ 18 years at the time of signed consent.

Subjects must have a documented diagnosis of MM and measurable disease at enrollment.

Received at least 3 prior anti-myeloma regimens (for a minimum of 2 or more consecutive cycles) that must have included an immunomodulatory drug (i.e., IKZF 1/3 degrader), a proteasome inhibitor, an anti-CD38 antibody, and a T-cell engager (TCE) or chimeric antigen receptor T-cell (CAR-T) therapy, unless not available per local standard of care.

Disqualifiers

Presence of myeloma in the central nervous system (CNS).

Systemic light chain amyloidosis

Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal gammopathy, and Skin changes (POEMS) Syndrome

Myelodysplastic syndrome (MDS).

Trial design

Design model

Single group

Treatments tested in this trial

  • Cemsidomide

    Drug

    dosed orally (PO) once a day (QD) 14 days on/14 days off for each 28-day cycle

  • Dexamethasone

    Drug

    dosed PO once a week (QW) on Days 1, 8, 15, and 22 for each 28-day cycle

Treatment groups

100 Participants
are divided into 1 treatment group
Group A: Cemsidomide + Dexamethasone:Experimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

Overall response rate (ORR) per International Myeloma Working Group (IMWG) Response Criteria by an Independent Review Committee (IRC)

Time frame
up to approximately 43 months

Secondary outcomes

1

Duration of response (DoR; IRC assessed)

Time frame
up to approximately 43 months
2

Complete response (CR) rate (IRC assessed)

Time frame
up to approximately 43 months
3

Time to response (IRC assessed)

Time frame
up to approximately 43 months
4

Progression free survival (PFS; IRC assessed)

Time frame
up to approximately 43 months

Other outcomes

Sponsors and contacts

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