STIL101 for Injection for the Treatment of Locally Advanced, Metastatic or Unresectable Pancreatic Cancer, Colorectal Cancer, Renal Cell Cancer, Cervical Cancer and Melanoma

This phase I trial tests the safety and side effects of STIL101 for injection and how well it works in treating patients with pancreatic cancer, colorectal cancer (CRC), renal cell cancer (RCC), cervical cancer (CC) and melanoma that has spread to nearby tissue or lymph nodes (locally advanced) or to other places in the body (metastatic) or that cannot be removed by surgery (unresectable). STIL101 for injection, an autologous (made from the patients own cells) cellular therapy, is made up of specialized white blood cells called lymphocytes or "T cells" collected from a piece of the patients tumor tissue. The T cells collected from the tumor are then grown in a laboratory to create STIL101 for injection. STIL101 for injection is then given to the patient where it may attack the tumor. Giving chemotherapy, such as cyclophosphamide and fludarabine, helps prepare the body to receive STIL101 for injection in a way that allows the T cells the best opportunity to attack the tumor. Aldesleukin is a form of interleukin-2, a cytokine made by leukocytes. Aldesleukin increases the activity and growth of white blood cells called T lymphocytes and B lymphocytes. Giving STIL101 for injection may be safe, tolerable and/or effective in treating patients with locally advanced, metastatic or unresectable pancreatic cancer, CRC, RCC, CC and melanoma.

PRIMARY OBJECTIVE: I. Determine the safety of administering STIL101 for injection in subjects with locally advanced, unresectable, or metastatic pancreatic ducal adenocarcinoma (PDAC), CRC, RCC CC or melanoma. SECONDARY OBJECTIVES: I. Summarize the efficacy observed due to STIL101 for injection in patients with locally advanced, unresectable or metastatic PDAC, CRC, RCC, CC or melanoma: Ia. Overall response rate (ORR) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 and Immune-Modified (i)RECIST 1.0; Ib. Disease control rate (DCR) as measured from STIL101 infusion; Ic. Overall survival (OS) as measured from STIL101 infusion; Id. Progression-free survival (PFS) as measured from STIL101 infusion. II. Summarize pre-STIL101 for injection therapy and outcomes from first study-related procedure. III. Evaluate the feasibility and timing of generating STIL101 for injection. IV. Describe STIL101 cell count in patients with respect to baseline characteristics, clinical outcome and adverse events. EXPLORATORY OBJECTIVE: I. Biological correlatives associated with STIL101 for injection creation and infusion. OUTLINE: Patients undergo excisional biopsy and continue receiving standard of care therapy for 3-4 months prior to the start of study therapy. Patients with successful generation of STIL101 for injection receive cyclophosphamide intravenously (IV) over 2 hours on days -5 to -4, fludarabine IV over 30 minutes on days -5 to -1 and STIL101 for injection IV on day 0 in the absence of disease progression or unacceptable toxicity. Patients also receive aldesleukin subcutaneously (SC) once daily (QD) on day 0 for up to 6-10 days. Additionally, patients undergo blood sample collection, biopsy, computed tomography (CT) and optional magnetic resonance imaging (MRI) throughout the study. After completion of study treatment, patients are followed up at days 42, 56, 70 and 84 then every 2-4 weeks up to week 96 or progression. Patients who discontinued treatment are followed up every 6 months.