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. 2022 Sep;28(6):1375-1380.
doi: 10.1177/10781552221086265. Epub 2022 Mar 21.

Belantamab mafodotin for relapsed or refractory multiple myeloma

Manuel David Gil-Sierra  1   2 , Maria Del Pilar Briceño-Casado  3
Affiliations

Belantamab mafodotin for relapsed or refractory multiple myeloma

Manuel David Gil-Sierra et al. J Oncol Pharm Pract. 2022 Sep.

Abstract

Objective: Refractory multiple myeloma (MM) presents poor responses to therapies. New drugs for highly pretreated MM are a hope for this clinical context with limited treatment options. We developed a comparative commentary on the evidence about the use of belantamab mafodotin in heavily pretreated relapsed or refractory MM with respect to other therapies. Data sources: Regimen data were extracted from pivotal clinical trials. Data summary: Response rates were the main efficacy outcomes reported in trials. Overall response was achieved by approximately 30% of patients trated with belantamab mafodotin. Response rates of different regimens must be supported by more relevant data, such as overall survival or progression-free survival. Subgroups of patients with extramedullary disease and revised International Staging System III should be thoroughly evaluated in phase III comparative clinical trials with larger sample sizes. Belantamab mafodotin presented specific adverse events (visual disturbances and kerathopathies). Grade 3-4 adverse events involved high percentages of patients treated with the different schemes. The budgetary impact of different treatments for heavily pretreated refractory MM would be very high. Literature suggested increased efficiency of belantamab mafodotin versus chimeric antigen receptor T-cell therapies. Conclusions: Belantamab mafodotin and other regimens are promising drugs for MM, especially for triple-class refractory patients. Comparative studies are necessary to perform a reliable therapeutic positioning.

Keywords: Belantamab mafodotin; antibodies; clinical decision-making; drug evaluation; monoclonal; multiple myeloma.

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