The purpose of this study is to determine if the addition of daratumumab to velcade (bortezomib) melphalan-prednisone (VMP) will prolong progression-free survival (PFS) compared with VMP alone in participants with previously untreated multiple myeloma who are ineligible for high dose chemotherapy and autologous stem cell transplant (ASCT).
The study consists of 3 phases: Screening Phase (within 21 days prior to randomization), Treatment Phase (Cycle 1 Day 1 to discontinuation of all study treatment), and Follow-up Phase (from discontinuation of all study treatment up to death, lost to follow up, withdrawal of consent, or the study ends, whichever occurs first). Treatment phase will include 2 treatments (Treatment A: participants will receive Velcade MelphalanPrednisone (VMP) alone and Treatment B: participants will receive daratumumab in combination with VMP).Two interim analyses are planned. The first will be to evaluate safety after a total of approximately 100 participants have been treated for at least 2 cycles or discontinued the study treatment. The second will be to evaluate cumulative interim safety and efficacy data, and will be performed when approximately 216 PFS events have been accumulated. The final OS analysis will occur when approximately 382 deaths have occurred. Efficacy will be primarily measured by comparison of PFS between the two treatment arms. Participants' safety will be monitored throughout the study.
Participants will receive velcade 1.3 mg/m\^2, as subcutaneous injection, twice weekly at Weeks 1, 2, 4 and 5 in Cycle 1 followed by once weekly at Weeks 1, 2, 4 and 5 in Cycles 2 to 9.
Participants will receive melphalan 9 mg/m\^2, orally, once daily on Days 1 to 4 of each cycle up to Cycle 9.
Participants will receive prednisone 60 mg/m\^2, orally, once daily, on Days 1 to 4 of each cycle up to Cycle 9.
Participants will receive daratumumab 16 mg/kg as intravenous infusion, once weekly, for 6 weeks in Cycle 1 and then once every 3 weeks, in Cycle 2 to 9 and thereafter, once every 4 weeks until documented progression, unacceptable toxicity, or until the end of study .
Participants administered with dexamethasone 20 mg IV or PO is given 1 hour or less prior to daratumumab administration as pre medication and prednisone substitute.
Daratumumab SC will be administered by SC injection at a fixed dose of 1800 mg once every 4 weeks until documented progression, unacceptable toxicity, or until the end of study. Following amendment 7, participants can switch from daratumumab IV to daratumumab SC.
Buenos Aires, Argentina
Ciudad Autonoma Buenos Aires, Argentina
Córdoba, Argentina
Santa Fe, Argentina