Several chimeric antigen receptor (CAR) T cell therapies are approved for the treatment of various haematological cancers; however, they are all autologous products requiring individualized manufacturing for each patient, which presents technical, logistical and resource challenges that limits scalability and implementation, and even raises certain ethical questions. Allogeneic products have the potential to address many of these issues, but come with their own challenges. This Review summarizes the advantages and disadvantages of allogeneic CAR cell products derived from T cells or other immune cells, their engineering and progress towards clinical implementation, as well as hurdles that remain to be overcome.
- Caroline Diorio
- David T. Teachey
- Stephan A. Grupp