Mark Bustoros, MD, Weill Cornell Medicine, New York City, NY, discusses a multi-institutional study exploring the role of absolute lymphocyte count (ALC) as a biomarker of response and progression-free survival (PFS) in patients with relapsed/refractory (R/R) multiple myeloma who received BCMA-directed CAR-T therapy. Findings reveal that an ALC spike within 15 days post-infusion is a positive indicator of clinical response to both idecabtagene vicleucel (ide-cel) and ciltacabtagene autoleucel (cilta-cel), with high ALC correlating with deeper responses and longer PFS. This interview took place at the 21st International Myeloma Society (IMS) Annual Meeting, held in Rio de Janeiro, Brazil.
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