Chimeric antigen receptor (CAR) T cells are effective therapies for patients with relapsed and/or refractory B cell malignancies, partly owing to the ability to target B cell-specific antigens. However, CAR T cells targeting solid tumour antigens are likely to carry a higher risk of on-target, off-tumour toxicity (OTOT). Here, the authors summarize the available data on OTOT in the context of CAR T cells targeting solid tumour antigens and describe novel CAR T cell designs that might overcome such toxicities.
- Christian L. Flugel
- Robbie G. Majzner
- Mohamed Abou-el-Enein
