{"groups":[{"description":"Participants who had not previously received a B-cell maturation antigen (BCMA)-directed therapy (BCMA-naïve participants) received subcutaneous elranatamab with a priming regimen of 12 milligrams (mg) on Cycle 1 Day 1 and 32 mg on Cycle 1 Day 4 followed by 76 mg weekly thereafter starting from Cycle 1 Day 8. Each cycle was 28 days. Treatment was continued until confirmed disease progression, unacceptable toxicity, withdrawal of consent, or study termination. If a participant had received weekly dosing (QW) for at least 6 cycles and had achieved a partial response (PR) or better persisting for at least 2 months, the dose interval was changed to once every 2 weeks (Q2W). The initial 4 enrolled participants received subcutaneous elranatamab with a priming regimen of 44 mg on Cycle 1 Day 1 followed by 76 mg weekly thereafter starting from Cycle 1 Day 8.","id":"FG000","title":"Cohort A"},{"description":"Participants who had previously received a BCMA-directed therapy (BCMA-exposed) received subcutaneous elranatamab with a priming regimen of 12 milligrams (mg) on Cycle 1 Day 1 and 32 mg on Cycle 1 Day 4 followed by 76 mg weekly thereafter starting from Cycle 1 Day 8. Each cycle was 28 days. Treatment was continued until confirmed disease progression, unacceptable toxicity, withdrawal of consent, or study termination. If a participant had received weekly dosing (QW) for at least 6 cycles and had achieved a partial response (PR) or better persisting for at least 2 months, the dose interval was changed to once every 2 weeks (Q2W).","id":"FG001","title":"Cohort B"}],"periods":[{"dropWithdraws":[{"reasons":[{"groupId":"FG000","numSubjects":"7"},{"groupId":"FG001","numSubjects":"7"}],"type":"Withdrawal by Subject"},{"reasons":[{"groupId":"FG000","numSubjects":"41"},{"groupId":"FG001","numSubjects":"26"}],"type":"Death"},{"reasons":[{"groupId":"FG000","numSubjects":"75"},{"groupId":"FG001","numSubjects":"31"}],"type":"Ongoing in the study"}],"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"123"},{"groupId":"FG001","numSubjects":"64"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"0"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"123"},{"groupId":"FG001","numSubjects":"64"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}],"preAssignmentDetails":"A total of 187 participants were enrolled and assigned to study treatment. Results are reported at primary completion date. Data for only those primary and secondary outcome measures whose analysis is complete and final have been reported. Data for remaining secondary outcome measures will be posted upon completion of analysis at secondary completion date.","recruitmentDetails":"Participants with relapsed/refractory multiple myeloma (RRMM), who were refractory to at least 1 proteasome inhibitor, 1 immunomodulatory drug, and 1 anti-cluster of differentiation38 (CD38) monoclonal antibody were included. Study enrolled participants into 2 independent and parallel cohorts: cohort A and B."}