Ipilimumab With Lymphodepletion Plus Adoptive Cell Transfer and High Dose IL-2 in Melanoma Mets Pts

Pre-treatment with ipilimumab (cycle 1): Before the participant's tumor sample is taken to send to the lab for growing the TILs, they will start their first cycle of ipilimumab. This drug is given as an intravenous infusion (through a vein) over a period of about 90 minutes (an hour and a half). Cycle 2 of ipilimumab: About a week after the sample of the participant's tumor was collected for TIL growth (and 3 weeks after their first cycle of ipilimumab), participants will have their second cycle of ipilimumab. This will be another IV infusion, lasting about 90 minutes.

Tumor sample for TIL growth in the lab: About 2 weeks after the participant's first cycle of ipilimumab, a sample of their tumor will be collected and sent to the lab for TIL growth. Growing the TILs takes about 6 weeks. If their sample has grown enough TIL cells, participants will continue with the next part of the study. Depending on how long the TILs take to grow in the lab, they may need to repeat some of their laboratory and imaging tests (blood draws, X-rays, and CT or magnetic resonance imaging \[MRI\] scans). TIL Infusion (inpatient): After completing lymphodepletion, participants will be admitted back into the hospital for IV infusion of the TIL cells.

Lymphodepletion (inpatient hospital stay for about 2 days plus outpatient drug dosing for 5 days): About 4 weeks after their second cycle of ipilimumab, participants will be admitted to the hospital for their first two days of receiving the chemotherapy drug, cyclophosphamide. This drug will be given as an intravenous (IV, meaning through the vein) infusion. After 2 days of receiving cyclophosphamide, if their study doctor thinks that they are well enough, you will be discharged from the hospital and will return for the next 5 days in a row for outpatient IV infusions of the second lymphodepletion chemotherapy, fludarabine.

High dose IL-2 (continued inpatient): Participants will remain in the hospital following TIL infusion for receiving high dose IL-2 and recovery. The IL-2 will be given three times per day for about 3-5 days as an IV bolus (meaning through the vein, more quickly than other infusions - in about 15 minutes each dose). Participants will remain in the hospital for approximately 7-14 days until they have recovered from the IL-2 treatments.