Mesothelin-Expressing Tumors

This is a Phase 1a/1b, first-in-human (FIH), open-label, multi-center dose escalation and expansion study of the safety, pharmacokinetics (PK), pharmacodynamics, and antitumor activity of single-agent CT-95 in subjects with advanced (recurrent, unresectable, or metastatic) cancers associated with MSLN expression.

Participants will have a sample of their white blood cells, called T cells, collected using a procedure called leukapheresis. The collected T cells will be sent to a laboratory at Memorial Sloan Kettering to be changed (modified) to become MSLN-targeted CAR T cells, the CAR T-cell therapy that participants will receive during the study. Participant study therapy will take about 3-4 weeks.