A Phase 1, Open-Label, Dose-Finding Study of BMS-986453, Dual Targeting BCMAxGPRC5D Chimeric Antigen Receptor T Cells, in Participants With Relapsed and/or Refractory Multiple Myeloma

Inclusion Criteria: * Participants must have a diagnosis of multiple myeloma with relapsed and/or refractory disease. * Participants must have confirmed progressive disease on or within 12 months (measured from the last dose) of completing treatment with the last anti-myeloma treatment regimen before study entry. * Participants in Part A and Part B Cohort 1 and in Part B Cohort 2 must have relapsed/refractory multiple myeloma and received previous antimyeloma therapy, including a proteasome inhibitor and an immunomodulatory agent. * Participants must have an Eastern Cooperative Oncology Group…