A Pilot Study Using Short-Term Cultured Anti-Tumor Autologous Lymphocytes

Inclusion Criteria:

For Cohorts 1 and 2:

* Metastatic melanoma;
* A metastatic lesion at least 1.5 cm in diameter that can be removed surgically
* Measurable or evaluable disease not including the resected lesion
* ECOG PS of 0 or 1 prior to cell harvest
* Assessment by the treating physician that ECOG performance status of no higher than 2 can be maintained at least for the period of cell generation, lymphoablation, cell infusion and IL-2 administration (for at least 6 weeks following cell harvest)
* Tumor refractory to or progressing following prior PD-1/PD-L1 therapy alone or in combination with an anti-CTLA-4 agent
* Ability to understand risks and benefits of the treatment and to give informed consent

Exclusion Criteria:

For Cohorts 1 and 2:

* Received prior cell transfer therapy that included non-myeloablative or ablative chemotherapy
* Any significant major organ dysfunction (see protocol)
* Residual toxicity \> gr1 from immune checkpoint inhibitor other than persistent endocrinopathy on hormone replacement; all symptoms of prior colitis and enteritis must have resolved completely as assessed by history
* Any contraindication to neutropenia or thrombocytopenia for up to 2 weeks (no active major infection, no site of active, clinically significant bleeding)
* Concurrent major medical illnesses
* Any form of immunodeficiency
* Requirement for steroids \> 10 mg prednisone daily or equivalent
* Severe hypersensitivity to any of the agents used in this study
* Contraindications for IL-2 administration

At the time of lymphoablation subjects must meet baseline eligibility criteria with the following additions and exceptions:

• Confirmation by lab that cell product can be ready for harvest and infusion within 7 days

For Cohort 2 only:

At the time of the start of anti-PD-1/anti-CTLA-4 therapy, subjects must meet baseline eligibility criteria with the following additions and exceptions:

* Patient cannot have a steroid requirement \> 10 mg prednisone daily or equivalent
* Patients who have received prior PD-1/PD-L1 antagonist therapy and developed severe autoimmune disease precluding further immune checkpoint therapy
* Any organ dysfunction that makes the subject ineligible for anti-PD1 and anti-CTLA-4 treatment as deemed by the treating investigator
* ECOG PS of 0-2
* Hgb of at least 8.0 gm/dl (may be transfused to this level)
* Creatinine not greater than 2.5 mg/dl
* AST or ALT not \> 5x ULN and total bilirubin not \> 2.5 mg/dl
* No clinically significant change in major organ function compared to initial eligibility evaluation
* Prior to initiating the lymphoablation regimen, there can be no untreated brain lesion \> 1.0 cm, and/or with significant evidence of hemorrhage. Subjects may begin lymphoablation no less than 1 full day after completing WBRT or stereotactic radiotherapy for brain lesions.