Clinical trial Recruiting at 12 sites Phase 1 Interventional Ages 18 and up

Assessing a new treatment for relapsed and refractory multiple myeloma

Official title: A Phase 1b, Dose Escalation/Dose Expansion, Multicenter, Open-Label Study to Assess the Safety and Tolerability of OPN-6602 Monotherapy and in Combination With Dexamethasone in Subjects With Relapsed and/or Refractory Multiple Myeloma

Run by Opna Bio LLC · NCT06433947 · Data updated 2026-11-12

This study is testing a new treatment called OPN-6602, alone and with another medication, to see if it can help people with relapsed or hard-to-treat multiple myeloma feel better and stay safe during the process.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment130 (estimated)
SponsorOpna Bio LLC
Industry-sponsored
Drugs / interventionschemotherapy, radiation
Locations12 sites (Gilbert, Arizona and 11 other locations)
StatusRecruiting
StartedAugust 22, 2024
Main results expectedDecember 2027
Study endsDecember 2027
Registry record updatedOctober 30, 2026
Trial IDNCT06433947 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals with a confirmed diagnosis of relapsed or refractory multiple myeloma who have not responded to multiple prior therapies.

Probably not a fit

Patients with conditions such as monoclonal gammopathy of undetermined significance or those who have had recent stem cell transplants may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 1b open-label study evaluates the safety and tolerability of OPN-6602, both as a standalone treatment and in combination with dexamethasone, for patients with relapsed and/or refractory multiple myeloma. The study will also assess the pharmacokinetics, preliminary antitumor activity, and pharmacodynamics of the treatment. Participants will be closely monitored to determine the effectiveness and safety of the drug regimen over the course of the trial.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with difficult-to-treat multiple myeloma.

How similar studies have gone: Other studies exploring similar treatment approaches have shown promise, but this specific combination is being evaluated for the first time.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Confirmed diagnosis of multiple myeloma (MM)
* Relapsed or refractory to 3 or more different prior lines of therapy for MM that included immunomodulatory agents, proteosome inhibitors, and anti-CD38 antibody and not a candidate for or intolerant to established therapy known to provide clinical benefit
* Adequate hematologic, renal, liver, cardiac function

Exclusion Criteria:

* Monoclonal gammopathy of undetermined significance (MGUS), smoldering myeloma, Waldenström's macroglobulinemia, or IgM myeloma
* Active plasma cell leukemia
* Polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin changes (POEMS syndrome)
* Prior Stevens Johnson syndrome
* Localized radiation therapy to disease site(s) within 2 weeks of the first dose
* Prior autologous peripheral stem cell transplant or prior autologous bone marrow transplantation within \<90 days of the first dose of study drug
* Prior allogeneic stem cell transplantation or solid organ transplantation within 12 months of first dose of study drug; subjects receiving immunosuppressive medication for active graft vs host disease will be excluded.
* Prior chemotherapy, targeted anticancer or radiation therapy within 2 weeks prior to first dose of study drug
* Concomitant high-dose corticosteroids (except subjects on chronic steroids given for disorders other than myeloma)
* Known central nervous system involvement by multiple myeloma
* Active known second malignancy with exception of adequately treated basal cell carcinoma, squamous cell carcinoma of the skin, or in situ cervical cancer; adequately treated Stage 1 cancer from which the subject is currently in remission and has been in remission for ≥2 years; low-risk prostate cancer with a Gleason score \<7 and a PSA level \<10 ng/mL; any other cancer from which the subject has been disease-free for ≥3 years
* Ongoing systemic infection requiring parenteral treatment
* Poorly controlled Type 2 diabetes

Where it's running

  • Banner MD Anderson
    Gilbert, Arizona, United States
    Recruiting
  • UC San Diego Moores Cancer Center
    La Jolla, California, United States
    Recruiting
  • Stanford Cancer Institute
    Stanford, California, United States
    Recruiting
  • Emory Winchip Cancer Center
    Atlanta, Georgia, United States
    Recruiting
  • University of Kansas Clinical Research Center
    Westwood, Kansas, United States
    Recruiting
  • Dana Farber Cancer Institute
    Boston, Massachusetts, United States
    Recruiting
Show 6 more locations
  • Karmanos Cancer Institute
    Detroit, Michigan, United States
    Recruiting
  • START Midwest
    Grand Rapids, Michigan, United States
    Recruiting
  • University of Rochester Medical Center
    Rochester, New York, United States
    Recruiting
  • University of North Carolina Hospitals at Hillsborough
    Chapel Hill, North Carolina, United States
    Recruiting
  • Huntsman Cancer Center Institute University of Utah
    Salt Lake City, Utah, United States
    Recruiting
  • Fred Hutchinson Cancer Center
    Seattle, Washington, United States
    Recruiting

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.