Cryo‑processed leukapheresis using automated closed system: a high‑quality starting material for autologous and allogeneic CAR‑T cell therapy manufacturing

Cell & Gene Therapy Insights 2026; 12(6), 623–641

DOI: 10.18609/cgti.2026.074

Published: 27 July
Innovator Insight
Alexandre Michaux, Matteo Rossi, Yu Zhang, Gabin Fonkou Tchinda, Gautier Delwiche, Romain Robert, Apolline Fossion, Alice Bouchoms, Stephanie Borensztein, Michael Iweins de Wavrans, Antoine Breitenstein, Caroline Lonez, Eytan Breman, Dominic Clarke

CAR‑T cell therapy has revolutionized the treatment of hematologic malignancies, but associated manufacturing presents logistical and clinical challenges that can impact product quality while limiting scalability and equitable patient access. Cryo‑processing of starting material is enabling greater manufacturing flexibility and scheduling, critical for global CAR‑T therapy deployment. This study reinforces the utility of cryopreserved leukapheresis as a reliable starting material for autologous and allogeneic CAR‑T cell therapy manufacturing while introducing a novel, automated closed process for generating cryopreserved leukapheresis, which reduces operator‑dependent variability and improves process reproducibility. The automated approach preserves cell viability and phenotype post‑thaw, ensuring minimal impact on T cell subsets, activation potential, exhaustion, memory phenotypes, and cytotoxic function upon CAR‑T manufacturing. This study highlights that combining automation with cryopreservation enables a consistent, GMP‑compliant workflow, reinforcing their role as essential technologies for scalable, decentralized CAR‑T cell manufacturing and supporting the broader adoption of standardized, accessible cell therapy solutions.

What you will learn
01
How the ACP maintains cell viability, recovery, and immune subset composition post-thaw
02
Cryopreservation does not alter CAR-T culture parameters, phenotype, or exhaustion markers
03
ACP-derived CAR-T cells match or outperform fresh-derived cells for cytokine secretion and killing
Key interests
CAR-T manufacturing Cryopreservation Leukapheresis Starting material Autologous Allogeneic GMP Process automation