Quadruplet regimens for patients with newly diagnosed multiple myeloma: a systematic review and meta-analysis
- PMID: 39348665
- PMCID: PMC11629212
- DOI: 10.1182/bloodadvances.2024014139
Quadruplet regimens for patients with newly diagnosed multiple myeloma: a systematic review and meta-analysis
Abstract
Quadruplet regimens (anti-CD38 monoclonal antibodies [mAbs] with proteasome inhibitor [PI] and immunomodulatory drugs [IMiDs]) are increasingly being investigated in newly diagnosed multiple myeloma (NDMM). The objective of our study was to conduct a systematic review and meta-analysis to measure the efficacy and toxicity of quadruplet regimens used in NDMM. Embase, MEDLINE, Web of Science, Cochrane Library, clinical trial registries, and meeting libraries from inception to 24 January 2024, in addition to American Society of Clinical Oncology conference abstracts 2024, were searched using terms reflecting multiple myeloma and components of the quadruplet regimen. Included studies were randomized controlled trials (RCTs) that compared backbone regimens consisting of a PI and IMiD vs the same regimen plus an anti-CD38 mAb in NDMM. We identified 7 RCTs including 3716 patients. Compared with triplets, quadruplets increase the overall response rate (ORR; relative risk [RR], 1.03; 95% confidence interval [CI], 1.01-1.05) and progression-free survival (PFS; hazard ratio [HR], 0.55; 95% CI, 0.46-0.66). Quadruplets increase the rates of minimal residual disease (MRD) negativity at 10-5 (RR, 1.39; 95% CI, 1.23-1.58) and 10-6 (RR, 1.62; 95% CI, 1.36-1.94). Quadruplets improve overall survival (OS; HR, 0.65; 95% CI, 0.53-0.79). There was a slight increase in the rates of grade 3 to 4 infections (RR, 1.22; 95% CI, 1.07-1.39) noted with quadruplets compared with triplets. Overall, in this meta-analysis, quadruplets were associated with improved efficacy including ORR, MRD negativity, PFS, and OS, with a slight increase in infection rates. Quadruplet regimens represent a new standard of care, particularly in transplant-eligible NDMM.
© 2024 by The American Society of Hematology. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0), permitting only noncommercial, nonderivative use with attribution. All other rights reserved.
Conflict of interest statement
Conflict-of-interest disclosure: R.C. reports consultancy for Janssen, Sanofi Pasteur, and Adaptive Biotechnologies. A.V. reports consultancy/honoraria from Janssen, Sanofi, and Apotex. C.P.V. reports honoraria from Takeda, Bristol Myers Squibb (BMS), Janssen, Pfizer, Sanofi, GlaxoSmithKline (GSK), AbbVie, and FORUS Therapeutics. I.S. reports honoraria from Celgene/BMS, Gilead/Kite, GSK, Sanofi, Janssen, BeiGene, FORUS Therapeutics, and Pfizer, and stock with IllumiSonics Inc. A.M. reports honoraria from Celgene, Janssen, Amgen, Takeda, Sanofi, and GSK. T.F. reports consultancy for Janssen, bms, Roche, and Takeda, and speakers' bureau fees from Janssen and BMS. M.-V.M. reports consultancy fees/honoraria from Janssen, Celgene/BMS, GSK, Sanofi, Amgen, Menarini-Stemline, AbbVie, and Pfizer. H.M. reports consultancy fees from Janssen, Celgene/BMS, GSK, Sanofi, Amgen, AbbVie, and Pfizer; research funding from Janssen and Pfizer; and is supported by an Early Career Award from Hamilton Health Sciences. The remaining authors declare no competing financial interests.
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