Hematopoietic stem cell boost for persistent neutropenia after CAR T-cell therapy: a GLA/DRST study.

ABSTRACT: Hematotoxicity after chimeric antigen receptor (CAR) T-cell therapy is associated with infection and death but management remains unclear. We report results of 31 patients receiving hematopoietic stem cell boost (HSCB; 30 autologous, 1 allogeneic) for either sustained severe neutropenia of grade 4 (<0.5 × 109/L), sustained moderate neutropenia (≤1.5 × 109/L) and high risk of infection, or neutrophil count ≤2.0 × 109/L and active infection. Median time from CAR T-cell therapy to HSCB was 43 days and median absolute neutrophil count at time of HSCB was 0.2. Median duration of neutropenia before HSCB was 38 days (range, 7-151). Overall neutrophil response rate (recovery or improvement) was observed in 26 patients (84%) within a median of 9 days (95% confidence interval, 7-14). Time to respons

SUBMITTER: Gagelmann N 

PROVIDER: S-EPMC9984300 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature