Allogeneic Natural Killer (NK) Cells for Ovarian, Fallopian Tube, Peritoneal and Metastatic Breast Cancer

The donor NK cells are infused on day 0, after a non-myeloablative preparative regimen of cyclophosphamide and fludarabine plus a cyclosporine A (CsA) based immunosuppressive therapy. Subcutaneous interleukin-2 (IL-2) is started the evening of the NK infusion and continued three times a week for 6 doses total. Up to 4 sequential immunosuppressive platforms will be tested (Arms 1 and 2 are currently closed) to identify a platform where patients have the potential for successful NK cell expansion (defined as an absolute circulating donor derived NK cell count of \> 100 cells/μl 14 days after NK cell infusion). Once a clinical platform is determined, the platform will be expanded to a total of 18 patients. The primary goal of this extended phase is to obtain preliminary efficacy information. Follow-up for disease response is for 1 year from the NK cell infusion, with the possibility of re-treatment for patients who experience at least a clinical benefit who progress after 6 months.