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Evaluating therapies for relapse and refractory multiple myeloma

A Phase II Randomized Adaptive Platform Trial Evaluating Novel Therapies in Relapsed or Refractory Multiple Myeloma

Phase 2 Interventional Multiple Myeloma Research Consortium · NCT06171685

This study is testing different new treatments for people with multiple myeloma that keeps coming back or doesn’t respond to other therapies to see which ones work best.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment300 (estimated)
Ages18 Years to 99 Years
SexAll
SponsorMultiple Myeloma Research Consortium Research network
Drugs / interventionsCAR-T, chimeric antigen receptor, chemotherapy, prednisone
Locations13 sites (Duarte, California and 12 other locations)
Trial IDNCT06171685 on ClinicalTrials.gov

What this trial studies

This adaptive platform trial is designed to evaluate various investigational therapies for patients with relapse and refractory multiple myeloma. The trial operates under a Master Protocol, allowing for the addition of new treatment arms as they become ready for evaluation. This flexible structure aims to efficiently identify the most effective therapies tailored to individual patient needs. Participants will receive treatments such as Teclistamab, either as monotherapy or in combination.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with histologically confirmed multiple myeloma that has relapsed or is refractory to previous treatments.

Not a fit: Patients who do not have measurable disease or those with an ECOG performance status greater than 2 may not benefit from this study.

Why it matters

Potential benefit: If successful, this trial could lead to more effective treatment options for patients with relapse and refractory multiple myeloma.

How similar studies have performed: Other adaptive platform trials have shown promise in efficiently evaluating multiple therapies, suggesting a potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria 
Inclusion Criteria

For inclusion in the trial, all the following inclusion criteria must be fulfilled, as no waivers will be permitted:

* Voluntarily agree to participate by giving written informed consent
* ≥18 years of age
* Histologically confirmed multiple myeloma that is exposed, relapsed, or intolerant to one of each of the following classes of agents:

  * A proteasome inhibitor
  * An immunomodulatory drug
  * An anti-CD38-monoclonal antibody
  * Must have received between 1-4 lines of prior systemic therapy
  * Prior BCMA-directed antibody-drug conjugate (ADC) or chimeric antigen receptor (CAR)-T cell therapy allowed Note: A washout period of 6 months is required from prior anti-BCMA therapy. For BCMA CAR-T cell therapy, participants must be ≥ 6 months from lymphodepleting chemotherapy.
* Measurable disease, defined as one of the following:

  * M-protein ≥ 0.50g/dL (0.5 g/dL or above if IgA subtype)
  * Urine M-protein (Bence-Jones protein) ≥ 200 mg/24hours
  * Serum free light chain difference \> 100 mg/L
  * Biopsy proven plasmacytoma
* For oligosecretory multiple myeloma, disease must be measurable by imaging (i.e., PET-CT, MRI)
* ECOG performance status of 0-2
* Adequate organ function, as indicated by the following laboratory values:

  * Adequate hematological function, defined as ANC ≥ 1000/µL, platelet count ≥ 50,000/µL, and hemoglobin ≥ 8 g/dL (transfusion and/or growth factor support is allowed for hematologic parameters as long as the investigator deems the participant otherwise fit for screening)
  * Adequate hepatic function, defined as total bilirubin level \< 1.5 x institutional upper limit of normal (IULN) (except in participants with congenital bilirubinemia, such as Gilbert syndrome, in which case direct bilirubin \< 1.5-3.0 x IULN is required), AST ≤ 2.5 x IULN, and ALT ≤ 2.5 x IULN
  * Adequate renal function, defined as calculated creatinine clearance ≥ 30 mL/min per institutional standard (assessment method should be recorded, measured or C-G acceptable)
  * eGFR \> 30mL/min based on MDRD 4-variable formula calculation or creatinine clearance based measured by 24h urine collection
  * Corrected serum calcium \<14mg/dL or free ionized calcium \<6.5 mg/dL
* Persons of childbearing potential must have a negative serum pregnancy test at screening (within 72 hours of first dose of trial medication). Non-childbearing potential for a person assigned as female at birth is defined as 1 of the following:

  * ≥ 45 years of age and has not had menses for \>1 year
  * Amenorrheic for \> 2 years without a hysterectomy and/or oophorectomy and follicle-stimulating hormone value in the postmenopausal range upon pretrial (screening) evaluation
  * Status is post-hysterectomy, -oophorectomy, or -tubal ligation
* Persons of childbearing potential must be willing to use highly effective contraceptive measures during sexual contact with a person assigned as male at birth starting with the Screening visit through 90 days after last dose of trial medication.

Note: Abstinence is acceptable if this is the established and preferred contraception for the participant.

-Persons assigned as male at birth with a partner(s) of childbearing potential must agree to use highly effective contraceptive measures throughout the trial starting with the Screening visit through 90 days after the last dose of trial medication is received. Persons assigned as male at birth with pregnant partners must agree to use a condom; no additional method of contraception is required for the pregnant partner.

Note: Abstinence is acceptable if this is the established and preferred contraception method for the participant.

* Known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using New York Heart Association Functional Classification. To be eligible for this trial, participants should be Class 2 or better. Class 2 is defined as slight limitation of physical activity, in which ordinary physical activity leads to fatigue, palpitation, or dyspnea; the person is comfortable at rest.
* Prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessments of the investigational arms are eligible for this trial.
* Known HIV infection who are on effective anti-retroviral therapy with undetectable viral load within 6 months of screening and enrollment are eligible for this trial.
* Evidence of chronic hepatitis B virus (HBV) infection must have an undetectable HBV viral load on suppressive therapy, if indicated.
* History of hepatitis C virus (HCV) infection must have been treated and cured. For participants with known HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load.
* Willing and able to comply with the requirements of the protocol.

Exclusion Criteria

For inclusion in Horizon, participants will not be eligible if any of the following criteria are met, as no waivers will be permitted:

* Major concurrent illness or organ dysfunction including but not limited to the following:

  * Plasma cell leukemia (the presence of ≥ 5% circulating plasma cells in peripheral blood smears)
  * Waldenström's macroglobulinemia
  * POEMS syndrome
  * Primary amyloid light-chain amyloidosis
* History of allergy or known hypersensitivity to any of the trial therapies or any of their excipients, or contraindication to any of the trial therapies as outlined in the local prescribing information (e.g., United States Prescribing Information \[USPI\]).
* Complete cord compression or CNS involvement
* Active or history of autoimmune disease that requires systemic treatment within 2 years of the start of study drug (i.e., with use of disease-modifying agents, corticosteroids, or immunosuppressive drugs).

Note: Participants with diabetes type 1, vitiligo, psoriasis, or hypo- or hyperthyroid disease not requiring immunosuppressive treatment are eligible

* Received a live, attenuated vaccine within 4 weeks before the first dose of study drug. Non-live or nonreplicating vaccines authorized for emergency use (eg, COVID-19) by local health authorities are allowed.
* Allogeneic tissue/solid organ transplant recipients with chronic GVHD requiring steroid equivalent dose of \> 20 mg prednisone
* Active infection requiring treatment
* History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the participant's participation for the full duration of the trial, or is not in the best interest of the participant to participate, in the opinion of the treating investigator
* Psychiatric or substance abuse disorder that would interfere with cooperation with the requirements of the trial
* Legally incapacitated or has limited legal capacity
* Persons who are pregnant or lactating

Where this trial is running

Duarte, California and 12 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 → Find more trials like this →
Conditions Relapse Multiple MyelomaRefractory Multiple Myeloma
Last reviewed 2026-06-09 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.