The goal of this clinical research study is to study the recommended dose of TROP2 CAR/IL-15 TGFBR2 KO NK cells that can be given intraperitoneally (infused directly into the stomach area) to participants with adenocarcinoma of the stomach that has spread to the peritoneum. The safety and effectiveness of this treatment will also be studied.
Subjects must be 18 years or older. Because no dosing or adverse event data are currently available on the use of CAR NK cells in combination with our standard of care approaches of cytoreductive surgery with intraperitoneal chemotherapy in patients <18 years of age, children are excluded from this study.
Subjects must be willing and able to provide informed consent.
Subjects must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
Not a woman of childbearing potential (WOCBP) as defined in Appendix 1 OR
Pregnant, breastfeeding, or expecting to conceive within the projected duration of the study, starting with the screening visit through 3 months after the last dose of trial treatment. WOCBP must have a negative serum pregnancy test within 72 hours of admission prior to lymphodepleting chemotherapy (see Appendix 1).
Has received systemic anti-cancer therapy including investigational agents within 4 weeks of starting lymphodepleting chemotherapy.
If a participant received previous systemic or targeted therapy, immunotherapy, or major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study treatment. In patients receiving standard of care zolbetuximab, this therapy may be continued.
Has received prior radiotherapy within 2 weeks of start of study intervention. Participants must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had radiation pneumonitis. A 1-week washout is permitted for palliative radiation (≤2 weeks of radiotherapy) to non-central nervous system (CNS) disease.