Kinetics of hematologic response in AL amyloidosis: Insights from clinical and cytogenetic subgroup analysis in the daratumumab era.

ABSTRACT: Rapid and profound reduction of free light chains (FLCs) improves outcomes in AL amyloidosis; however, early FLC kinetics with daratumumab-based frontline therapy remain undefined. We retrospectively analyzed 315 patients treated with daratumumab-bortezomib-cyclophosphamide-dexamethasone (Dara-VCd) or Dara-Vd at eight centers. Involved FLC (iFLC), the difference between iFLC and uninvolved FLC (dFLC), and hematologic response (≥very good partial response [VGPR]) were assessed at baseline and at 1, 3, and 6 months, and correlated with light chain isotype, disease burden (bone-marrow plasma-cell percentage [%BMPC], baseline dFLC), and cytogenetics. Hematological ≥VGPR increased from 49.8% at 1 month to 66.0% at 3 months. The kappa isotype showed slower responses, with higher iFLC/dFLC and lo

SUBMITTER: Bazarbachi AH 

PROVIDER: S-EPMC12745042 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature