A Phase 1, Multicenter, Open-label Study to Evaluate the Safety and Preliminary Efficacy of Arlocabtagene Autoleucel (BMS-986393) in Novel Combinations in Participants With Relapsed and/or Refractory Multiple Myeloma and Determine the Recommended Dose for Each Add-on Investigational Component

Inclusion Criteria: * History of relapsed and/or refractory multiple myeloma (RRMM) treated with at least 3 (Part 1) or at least 1 but not greater than 3 prior anti-myeloma treatment regimens (Part 2). * Measurable multiple myeloma (MM) as per International Myeloma Working Group (IMWG). * Eastern Cooperative Oncology Group performance status of 0-1. Exclusion Criteria: * Prior treatment with alnuctamab (Arm A), mezigdomide (Arm B), iberdomide (Arm C), elranatamab (Arm D) or BCMA-targeting therapy (Part 2 Arms A and D). * Prior treatment with GPRC5D-targeting therapies. * Other protocol-defi…