Evaluating a new combination treatment for relapsed or refractory multiple myeloma

An Open-Label, Multicenter, Phase Ib Trial Evaluating the Safety, Pharmacokinetics, and Activity of the Combination of Cevostamab and Elranatamab in Patients With Relapsed or Refractory Multiple Myeloma

PHASE1 · Genentech, Inc. · NCT05927571

This study is testing a new combination of two treatments for people with relapsed or refractory multiple myeloma to see if it's safe and how well it works.

Quick facts

PhasePHASE1
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years and up
SexAll
SponsorGenentech, Inc. (industry)
Drugs / interventionscevostamab, elranatamab
Locations14 sites (Camperdown, New South Wales and 13 other locations)
Trial IDNCT05927571 on ClinicalTrials.gov

What this trial studies

This study aims to assess the safety and tolerability of combining cevostamab and elranatamab in patients with relapsed or refractory multiple myeloma. It includes a safety lead-in stage followed by an expansion stage to determine the recommended Phase II dose for the treatment. Participants will be monitored for pharmacokinetics and overall activity of the drug combination. The study is designed to provide insights into the effectiveness of this novel treatment approach.

Who should consider this trial

Good fit: Ideal candidates are adults diagnosed with relapsed or refractory multiple myeloma who meet specific health criteria.

Not a fit: Patients who have previously received cevostamab or elranatamab, or those with certain comorbid conditions, may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could offer a new therapeutic option for patients with relapsed or refractory multiple myeloma.

How similar studies have performed: While this approach is novel, similar studies targeting multiple myeloma have shown promise in improving patient outcomes.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
* Diagnosis of R/R MM per IMWG criteria
* For female participants of childbearing potential: agreement to remain abstinent or use contraception
* For male participants: agreement to remain abstinent or use a condom

Exclusion Criteria:

* Prior treatment with cevostamab or another agent targeting fragment crystallizable receptor-like 5 (FcRH5)
* Prior treatment with elranatamab
* Prior allogeneic stem cell transplantation (SCT)
* Absolute plasma cell count exceeding 500 per milliliter (mL) or 5% of the peripheral blood white cells
* Diagnosis of Waldenström macroglobulinemia or polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, skin changes (POEMS) syndrome
* Participants with known history of amyloidosis
* History of autoimmune disease
* History of confirmed progressive multifocal leukoencephalopathy
* Peripheral motor polyneuropathy of prespecified grade
* Known or suspected chronic cytomegalovirus (CMV) and/or Epstein-Barr virus (EBV) infection
* Known history of hemophagocytic lymphohistiocytosis (HLH) or macrophage activation syndrome (MAS)
* Acute or chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infection
* Human immunodeficiency virus (HIV) seropositivity
* History of central nervous system (CNS) myeloma disease
* Significant cardiovascular disease

Where this trial is running

Camperdown, New South Wales and 13 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Relapsed or Refractory Multiple Myeloma

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.