Multiple myeloma (MM) is a malignant plasma cell disorder characterized by the production of monoclonal immunoglobulin (Ig) proteins or protein fragments (M proteins) that have lost their function. JNJ-68284528 (ciltacabtagene autoleucel [cilta-cel]) is an autologous chimeric antigen receptor T cell (CAR-T) therapy that targets B-cell maturation antigen (BCMA), a molecule expressed on the surface of mature B lymphocytes and malignant plasma cells. The primary hypothesis of this study is that in participants with newly diagnosed MM, treatment with VRd induction followed by a single administration of cilta-cel will significantly improve progression free survival compared to Bortezomib, Lenalidomide and Dexamethasone (VRd) induction followed by Rd maintenance. The study will screen participants with newly diagnosed MM who are not planned to receive autologous stem cell transplant (ASCT) as initial therapy. This study will be conducted in 4 phases: Screening (up to 28 days), Pre-randomization Treatment, Treatment, and Follow-up. Assessments like patient-reported outcome(s) (PROs), electrocardiogram (ECG), vital signs and pharmacokinetics will be performed during the study. Safety evaluations will include review of adverse events, laboratory test results, vital sign measurements, physical examination findings, assessment of cardiac function, Immune-Effector Cell-Associated Encephalopathy (ICE) and handwriting assessments (only for Arm B) and Eastern Cooperative Oncology Group (ECOG) performance status. Safety data will be periodically reviewed by an Independent Data Monitoring Committee (IDMC). The duration of the study is approximately 12 years 5 months.

Multiple myeloma (MM) is a malignant plasma cell disorder characterized by the production of monoclonal immunoglobulin (Ig) proteins or protein fragments (M proteins) that have lost their function. JNJ-68284528 (ciltacabtagene autoleucel \[cilta-cel\]) is an autologous chimeric antigen receptor T cell (CAR-T) therapy that targets B-cell maturation antigen (BCMA), a molecule expressed on the surface of mature B lymphocytes and malignant plasma cells. The primary hypothesis of this study is that in participants with newly diagnosed MM, treatment with VRd induction followed by a single administration of cilta-cel will significantly improve progression free survival compared to Bortezomib, Lenalidomide and Dexamethasone (VRd) induction followed by Rd maintenance. The study will screen participants with newly diagnosed MM who are not planned to receive autologous stem cell transplant (ASCT) as initial therapy. This study will be conducted in 4 phases: Screening (up to 28 days), Pre-randomization Treatment, Treatment, and Follow-up. Assessments like patient-reported outcome(s) (PROs), electrocardiogram (ECG), vital signs and pharmacokinetics will be performed during the study. Safety evaluations will include review of adverse events, laboratory test results, vital sign measurements, physical examination findings, assessment of cardiac function, Immune-Effector Cell-Associated Encephalopathy (ICE) and handwriting assessments (only for Arm B) and Eastern Cooperative Oncology Group (ECOG) performance status. Safety data will be periodically reviewed by an Independent Data Monitoring Committee (IDMC). The duration of the study is approximately 12 years 5 months.