The duration of the study for a participant will include a period for screening of up to 28 days. A cycle duration is 28 days. Participants will be allowed to continue therapy until disease progression, unacceptable adverse events (AEs), participant request to discontinue treatment, or any other reason, as well as the study treatment is commercially available and reimbursed in the participant's country, or is available from another source, whichever is first. The overall study duration will be of approximately 45 months.
The main purpose of this study is to measure the efficacy (Myeloma response) of subcutaneous (SC) isatuximab treatment in combination with carfilzomib and dexamethasone in adult participants with RRMM having received 1 to 3 prior lines of therapy. After confirmation of the feasibility of SC isatuximab by manual administration, patient will be randomized to 1 of the 2 delivery method of SC isatuximab.