• Leo Sekine, Patrícia Klarmann Ziegelmann, Denise Manica, Carolina da Fonte Pithan, Monalisa Sosnoski, Vinicius Daudt Morais, Frederico Soares Falcetta, Mariana Rangel Ribeiro, Ana Paula Salazar, and Rodrigo Antonini Ribeiro.
• Postgraduate Program in Epidemiology, Universidade Federal do Rio Grande do Sul, Brazil; Hospital de Clínicas de Porto Alegre, Brazil. Electronic address: lsekine@hcpa.edu.br.
• Crit. Rev. Oncol. Hematol. 2019 Nov 1; 143: 102-116.

AbstractChoice of treatment for newly diagnosed transplant-ineligible multiple myeloma poses a difficult task due to an ever-increasing plethora of different regimens. Attempting to clarify this subject, we performed a systematic review and Bayesian network meta-analysis of 29 randomized clinical trials, enrolling 14,533 patients, and comparing 25 different treatment regimens regarding overall survival(OS), progression-free survival(PFS), complete response(CR), overall response rate(ORR) and toxicity. Head-to-head comparisons for all regimens and ranking of best treatments are reported. OS analysis showed superiority of lenalidomide(R) and bortezomib(V) containing regimens over thalidomide(T) protocols (e.g. Rd/CTD-HR:0.7;95%CrI:0.53-0.93, VMP/TD-HR:95%0.45;CrI:0.29-0.69). Concerning PFS, daratumumab(D) plus V (Dara-VMP) showed superior results over R (e.g. Dara-VMP/MPR-HR:0.52;95%CrI:0.34-0.77), V plus T (Dara-VMP/VTd-HR:0.56;95%CrI:0.37-0.65) and T (Dara-VMP/CTD-HR:0.34;95%CrI:0.23-0.49) containing regimens. Also, VRd and VMPT-VT performed well over other regimens. Dara-VMP showed superior response rates over R (ORR Dara-VMP/MPR-RR:6.27;95%CrI:2.18-18.95, CR Dara-VMP/MPR-RR:1.53;95%CrI:1.21-1.96) and T (ORR Dara-VMP/MPT-T-RR:4.05;95%CrI:1.19-13.26, CR Dara-VMP/MPT-T-RR:1.42;95%CrI:1.09-1.85; ORR Dara-VMP/CTD-RR:2.72;95%CrI:1.2-6.31, CR Dara-VMP/CTD-RR:1.2;95%CrI:1.05-1.36) including a higher rate of complete remission even when compared to VRd (RR:1.29;95%CrI:1.01-1.66). A higher rate of grade 3-4 adverse events was found for RD and CPR (thrombotic); VTd, VTP and VMPT-VT (neurological); RD and VAD (infectious); MPR-R and VAD (hematological); Vd and VTd (gastrointestinal); VAD, VMPCc and RD (cardiovascular). These results confirm obsolescence of classical regimens (such as VAD and MP) while pointing out benefits in efficacy resulting from incorporation of quadruplets and triplets combining new agents (Dara-VMP, VRd and VMPT-VT) and supports current rational of treatment until progression or prohibitive toxicity, especially when including lenalidomide. Based on this data, we would recommended incorporation of strategies combining novel agents (monoclonal antibodies, immunomodulatory imide drugs and proteasome inhibitors) in triplets or quadruplets and/or those comprising long term use of lenalidomide as standard frontline treatments. Moreover, this study settles daratumumab's place as an attractive alternative for upfront treatment.Copyright © 2019 Elsevier B.V. All rights reserved.

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