A Study of Different Sequences of Cilta-cel, Talquetamab in Combination With Daratumumab and Teclistamab in Combination With Daratumumab Following Induction With Daratumumab, Bortezomib, Lenalidomide and Dexamethasone in Participants With Standard-risk Newly Diagnosed Multiple Myeloma

Rate of Response with curative potential is defined as the percentage of participants with a composite of durable (at least 2 years) minimal residual disease (MRD) (10^-5) negativity with complete response/stringent complete response (CR/sCR) by serology and negative positron emission tomography/computed tomography (PET/CT) imaging at 5-years after start of induction therapy. This includes: negative imaging at 5-year landmark time; MRD-negative status (at 10^-5) in 2 bone marrow examinations that are a minimum of 2 years apart; response of CR or better per the International Myeloma Working Group (IMWG) criteria; no examination showing MRD-positive status or relapse from CR in between assessments.

PFS is defined as the time from the date of randomization to either progressive disease (PD), according to the IMWG response criteria, or death, whichever occurs first.

PFS is defined as the time from the date of randomization to either PD, according to the IMWG response criteria, or death, whichever occurs first.

ORR (PR or better) is defined as the percentage of participants with best overall response of PR or better according to IMWG response criteria.

Rate of CR or better is defined as the percentage of participants with best overall response of CR or better according to IMWG response criteria.

Rate of VGPR or better is defined as the percentage of participants with best overall response of VGPR or better rate according to IMWG response criteria.

DOR is calculated among responders (with a PR or better response) from the date of initial documented response (PR or better) to the date of first documented evidence of PD as defined according to IMWG criteria or death due to any cause, whichever occurs first.

Time to response (that is, time to first response) is defined as the time between the date of randomization and the first efficacy evaluation that the participant has met all criteria for PR or better based on the computerized algorithm per IMWG criteria for those who had PR or better as their best response.

Duration of CR or better response is calculated among responders (with a CR or better response) from the date of initial documented response CR or better to the date of first documented evidence of PD as defined according to IMWG criteria or death due to any cause, whichever occurs first.

Time to first CR or better response is defined as the time between the date of randomization and the first efficacy evaluation that the participant has met all criteria for CR or better based on the computerized algorithm per IMWG criteria.

PFS2 is defined as time from randomization to progression on the next line of therapy or death, whichever comes first.

OS is measured from the date of randomization to the date of death due to any cause.

MRD-negative CR is defined as the percentage of participants who achieved both CR or better and MRD negativity at a threshold of 10^-5 and 10^-6. MRD-negative CR rate will be evaluated at the first occurrence from induction treatment initiation for participants per IMWG criteria.

An Adverse event (AE) is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/ biological agent under study. TEAEs are defined as AEs with onset or worsening on or after date of first dose of study treatment. Severity of TEAEs will be graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0. Severity scale ranges from Grade 1 (Mild) to Grade 5 (death). Grade 1= mild, Grade 2= moderate, Grade 3= severe, Grade 4= life-threatening and Grade 5= death related to adverse events.

Change from baseline in participants' HRQoL (symptoms and functioning) as assessed by EORTC-QLQ-C30 will be reported. The EORTC-QLQ-C30 includes 30 items in 5 functional scales (physical, role, emotional, cognitive, social), 1 global health status scale, 3 symptom scales (pain, fatigue, nausea/vomiting), and 6 single symptom items (dyspnea, insomnia, appetite loss, constipation, diarrhea, financial difficulties). The recall period is 1 week ("past week") and responses are reported using a verbal rating scale. The item and scale scores are transformed to a 0-to-100 scale. A higher score represents greater HRQoL, better functioning, and more (worse) symptoms.