Effects of an Initial Anti-CD19 CAR T-cell Therapy on Subsequent Anti-CD22 CAR T-cell Manufacturing and Clinical Outcomes in Patients with Relapsed/Refractory LBCL

Cancer Discov. 2025 Apr 2;15(4):733-747. doi: 10.1158/2159-8290.CD-24-1071.

Abstract

Late leukapheresis (>6 months after CAR19) resulted in less residual CAR19, higher CAR22 CD4+ naïve T and TCM cells, less TEM cells, and higher CD8+ TCM cells, but similar clinical outcomes to those with early leukapheresis. CAR22 responses were associated with higher transduction efficiency and CD8+ TCM and less CD8+ TEM cells.

MeSH terms

  • Aged
  • Antigens, CD19* / immunology
  • Female
  • Humans
  • Immunotherapy, Adoptive* / methods
  • Leukapheresis
  • Leukemia, Lymphocytic, Chronic, B-Cell* / immunology
  • Leukemia, Lymphocytic, Chronic, B-Cell* / therapy
  • Male
  • Middle Aged
  • Receptors, Antigen, T-Cell
  • Receptors, Chimeric Antigen* / immunology
  • Sialic Acid Binding Ig-like Lectin 2* / antagonists & inhibitors
  • Sialic Acid Binding Ig-like Lectin 2* / immunology
  • Treatment Outcome

Substances

  • Antigens, CD19
  • Receptors, Chimeric Antigen
  • Sialic Acid Binding Ig-like Lectin 2
  • CD22 protein, human
  • Receptors, Antigen, T-Cell
  • CD19 molecule, human