Abstract
The BLd regimen, which is a triplet regimen of bortezomib (Bor), lenalidomide (Len), and dexamethasone (Dex), is effective against newly diagnosed multiple myeloma (NDMM). However, non-hematological toxicities, such as peripheral neuropathy (PN), often hamper long-term continuation of the regimen, particularly in older adult patients. In this study, we examined the efficacy and safety of the modified BLd regimen with reduced-intensity Bor and standard-dose Len. The chemotherapy regimen consisted of 1.3 mg/m2 Bor administered subcutaneously on days 1 and 8, 25 mg Len administered on days 1–14, and 20 mg Dex on days 1–2 and 8–9 of a 3 week cycle for 8 cycles, followed by a 4 week cycle of Dex (40 mg weekly). Among the 30 patients enrolled, 60.0% (95% CI 40.6–77.3) had a very good partial response or better, and the best overall response rate was 96.7% (95% CI 82.8–99.9). Eight patients (26.7%) achieved a complete response. Grade 3 or higher PN was not observed and hematological toxicity was the most common adverse event. The modified BLd regimen showed favorable efficacy with a manageable safety profile, which suggests it could be a treatment option for transplant-ineligible NDMM.
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Acknowledgements
The study received financial support from Celgene Co., Ltd. We are grateful to the members of the Data and Safety Monitoring Committee of this study, Hirohiko Shibayama, and Yoichi Imai. We are also grateful for the assistance and cooperation of all members at collaborating institutes and the Japanese Data Center for Hematopoietic Cell Transplantation, especially Ms. Noriko Mizutani and Ms. Shizuka Kobayashi, for their assistance with data management.
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MR received research funding from Celgene Co., Ltd. JK received declares Honoraria from Janssen Pharmaceutical K.K., and Celgene Co., Ltd. SI received research funding and declared Honoraria from Janssen Pharmaceutical K.K. and Celgene Co., Ltd.
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Murakami, S., Ri, M., Ito, M. et al. Efficacy and safety of modified BLd therapy for Japanese patients with transplant-ineligible multiple myeloma. Int J Hematol 116, 563–569 (2022). https://doi.org/10.1007/s12185-022-03379-9
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DOI: https://doi.org/10.1007/s12185-022-03379-9