MAGNETISMM-6: AN OPEN-LABEL, 2-ARM, MULTICENTER, RANDOMIZED PHASE 3 STUDY TO EVALUATE THE EFFICACY AND SAFETY OF ELRANATAMAB (PF-06863135) + DARATUMUMAB + LENALIDOMIDE OR ELRANATAMAB + LENALIDOMIDE VERSUS DARATUMUMAB + LENALIDOMIDE + DEXAMETHASONE IN TRANSPLANT-INELIGIBLE PARTICIPANTS WITH NEWLY DIAGNOSED MULTIPLE MYELOMA
Elranatamab is a bispecific antibody: binding of elranatamab to CD3-expressing T-cells and BCMA-expressing multiple myeloma cells causes targeted T-cell-mediated cytotoxicity. The main purpose of the study is to evaluate if the combination of Elranatamab, Daratumumab and Lenalidomide or Elranatamab and Lenalidomide offers superior clinical benefit compared with the combination of Daratumumab, Lenalidomide and Dexamethasone in people with multiple myeloma. There are 2 parts to this study. Part 1 will characterize the safety and tolerability of elranatamab in combination with daratumumab and lenalidomide or in combination with lenalidomide and will identify the optimal dose(s) of the combination regimen. Part 2 of the study will evaluate the minimal residual disease (MRD) negativity rate and the progression free survival (PFS) of the combination of elranatamab, daratumumab, and lenalidomide or elranatamab and lenalidomide compared with the combination of daratumumab, lenalidomide, and dexamethasone in participants with newly diagnosed transplant-ineligible multiple myeloma.
• Diagnosis of multiple myeloma (MM) as defined by IMWG criteria (Rajkumar et al., 2014)
• Measurable disease based on IMWG criteria as defined by at least 1 of the following:
‣ Serum M-protein ≥0.5 g/dL;
⁃ Urinary M-protein excretion ≥200 mg/24 hours;
⁃ Involved FLC ≥10 mg/dL (≥100 mg/L) AND abnormal serum immunoglobulin kappa to lambda FLC ratio (\<0.26 or \>1.65).
• Part 1: Participants with relapsed/refractory multiple myeloma (RRMM) who have received 1-2 prior lines of therapy including at least one immunomodulatory drug and one proteasome inhibitor: or participants with newly-diagnosed multiple myeloma (NDMM) that are transplant-ineligible as defined by age ≥65 years or transplant-ineligible as defined by age \<65 years with comorbidities impacting the possibility of transplant.
• Part 2: participants with newly-diagnosed multiple myeloma that are transplant-ineligible as defined by age ≥65 years or transplant-ineligible as defined by age \<65 years with comorbidities impacting the possibility of transplant
• ECOG performance status ≤2.
• Not pregnant and willing to use contraception
• For participants with RRMM: Resolved acute effects of any prior therapy to baseline severity or CTCAE Grade ≤1.