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Clinical Trial Summary

Background: A person s tumor is studied for mutations. When cells are found that can attack the mutation in a person s tumor, the genes from those cells are studied to find the parts that make the attack possible. White blood cells are then taken from the person s body, and the gene transfer occurs in a laboratory. A type of virus is used to transfer the genes that make those white blood cells able to attack the mutation in the tumor. The gene transfer therapy is the return of those white blood cells back to the person. Objective: To see if gene transfer therapy of white blood cells can shrink tumors. Eligibility: People with certain metastatic cancer for which standard treatments have not worked. Design: Participants may complete screening under another protocol. Screening includes: - Getting tumor cells from a previous procedure - Medical history - Physical exam - Scans - Blood, urine, heart, and lung tests The study has 8 stages: 1. Screening tests repeated over 1-2 weeks. Participants will have leukapheresis: Blood is removed by a needle in one arm. A machine removes white blood cells. The rest of the blood is returned by a needle in the other arm. 2. Care at home over approximately 12 weeks. 3. Stopping therapy for 4-6 weeks while their cells are changed in a lab. 4. Hospital stay approximately 3-4 weeks for treatment. An IV catheter will be placed in the chest to administer drugs. 5. Patients on Arm 2 of the study will receive the first dose of pembrolizumab while in the hospital. Three additional doses will be given after the cell infusion 3 weeks apart. 6. Receiving changed cells by catheter. Then getting a drug over 1-5 days to help the cells live longer. 7. Recover in the hospital for 1-2 weeks. Participants will get drugs and have blood and urine tests. 8. Participants will take an antibiotic and maybe an antiviral for at least 6 months after treatment. They will have repeat screening tests at visits every few months for the first year, every 6 months for the second year, then as determined. ...


Clinical Trial Description

Background: - The administration of autologous tumor-infiltrating lymphocytes (TIL) can mediate complete, durable regressions in 20-25% of participants with metastatic melanoma. Recent studies have shown that these TIL predominantly recognize unique mutated neoantigens expressed by the cancer not shared by other melanomas. - Administration of bulk autologous TIL to participants with a variety of other solid cancers, including cancers of the gastrointestinal tract and genitourinary tract, have little if any therapeutic impact. - Recent studies in the National Cancer Institute Surgery Branch, (NCI-SB), have shown that TIL from non-melanoma solid cancers can also contain T-cells reactive against non-shared unique mutated or oncoviral neoantigens expressed in the cancer. The frequency of these T-cells is very low (often < 0.1%) and it is thus difficult to isolate and grow mutation reactive T-cells to levels required for effective therapy. - In a single patient with chemo-refractory metastatic cholangiocarcinoma we were able to grow a relatively pure population of neoantigen reactive TIL and administration of these cells mediated a near-complete regression of all metastatic disease now lasting 2.5 years. - We have developed approaches to identify these rare neoantigen reactive T-cells from common non-melanoma cancers, to isolate their T-cell receptors (TCR), and to genetically engineer autologous peripheral blood lymphocytes (PBL) to express these TCRs with high efficiency. The neoantigen TCR gene-modified cells can recognize and destroy the autologous cancer in vitro. - In addition to reactivity to neoantigens derived from nonsynonymous mutations, T-cells can recognize human papilloma virus (HPV) epitopes in participants with HPV- induced cancers. The TCR from these reactive cells can be isolated and retrovirally-transduced into autologous PBL with high efficiency. - With these techniques, we have isolated a number of TCRs selectively recognizing shared mutated oncogenes (e.g., KRAS, TP53) or shared oncoviral proteins (e.g. HPV) in the context of several major histocompatibility complexes (MHC-I and MHC-II). - This clinical protocol will treat participants with refractory solid cancers using the adoptive transfer of autologous PBL transduced with genes encoding TCRs that recognize unique mutated or oncoviral neoantigens expressed by the cancer. Objectives: -Primary objective: --Determine the rate of objective response (using RECIST v1.1 criteria) of participants with solid cancers who receive pembrolizumab plus autologous PBL (Arm 2) that have been transduced with genes encoding T-cell receptors that recognize mutated or oncoviral neoantigens in the autologous cancer Eligibility: -Participants must be/have: - Age greater than or equal to 18 years and less than or equal to 70 years - Metastatic solid cancer with at least one lesion that can be measured, that falls into one of four cohorts: (1) gastrointestinal and genitourinary cancers; (2) breast, ovarian, and other solid cancers; (3) non-small cell lung cancer (NSCLC); and, (4) endocrine tumors including neuroendocrine tumors. - Evaluable solid cancer that has recurred following standard chemotherapy or standard systemic therapy - Normal basic laboratory values. - No allergies or hypersensitivity to high-dose aldesleukin administration - No concurrent major medical illnesses or any form of immunodeficiency. Design: - Participants will have already undergone resection or biopsy to obtain tumor for generation of autologous TIL cultures. This will have been conducted under the NCI-SB cell harvest protocol 03-C-0277 (Cell Harvest and Preparation for Surgery Branch Adoptive Cell Therapy Protocols). - Exomic sequencing, and often RNA-Seq will be performed to identify the mutations expressed in the patient s cancer. Multiple autologous TIL cultures will be grown and tested for reactivity against mutations from the autologous tumor using assays we have developed that involve the exposure of autologous antigen-presenting cells to long peptides containing the mutation or tandem mini-genes encoding the mutation. - T-cell cultures with reactivity against mutations will be identified and the individual T- cell receptors that recognize the mutation will be synthesized and used to create a retrovirus for transduction of the TCR into the patient s autologous PBL. - Participants that present with tumors expressing oncoviral neoantigens will be treated with autologous PBLs retrovirally transduced with TCR(s) targeting the oncoviral neoantigen. - Participants that present with tumors expressing mutated shared oncogenes (e.g., KRAS, TP53) or oncoviral proteins (e.g., HPV) that also express the appropriate restriction element may be treated with autologous PBLs retrovirally transduced with TCR(s) previously isolated in the Surgery Branch targeting the shared mutated antigen. These participants will be administered a cell infusion product of TCRs targeting mutated shared oncogenes (e.g., KRAS, TP53) or oncoviral proteins (e.g., HPV). Their cell infusion product will not include PBL transduced with unique (i.e., non-shared) TCR(s). - Participants will be enrolled into one of four cohorts: (1) metastatic gastrointestinal and genitourinary cancers; (2) metastatic breast, ovarian, and other solid cancers; (3) metastatic non-small cell lung cancer (NSCLC); and, (4) metastatic endocrine tumors including neuroendocrine tumors. Autologous PBL transduced with TCR(s) targeting neoantigens (mutated shared oncogenes e.g., TP53, KRAS, individual non-synonymous mutations , or oncoviral proteins) will then be expanded to large numbers using our standard rapid expansion protocol. - Participants enrolled on Arm 1 and Arm 2 will receive a non-myeloablative, lymphodepleting preparative regimen consisting of cyclophosphamide and fludarabine followed by the infusion of autologous transduced PBL and high-dose aldesleukin. At the discretion of the Principal Investigator (PI), participants enrolled in Cohort 3 (NSCLC) may receive low-dose aldesleukin. - Participants enrolled on Arm 2 will receive pembrolizumab prior to cell administration and three additional doses every three weeks following the cell infusion. Participants who have experienced major organ toxicity due to previous treatment with pembrolizumab (or equivalent PD-1/PD-L1 blockade) will be enrolled on Arm 1. - Clinical and immunologic response will be evaluated about 4-6 weeks after cell infusion and periodically thereafter. - It is anticipated that approximately one participant per month may enroll on the trial for each of the four histologic cohorts for Arm 2. There will be a limit of 15 participants per cohort enrolled on Arm 1 (60 participants for Arm 1), and accrual of up to 4 x 50 = 200 total evaluable participants on Arm 2. It is expected that once full manufacturing capability is reached, the accrual may be completed in approximately 4-5 years. In order to allow for a small number of inevaluable participants, the accrual ceiling will be set to 270. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03412877
Study type Interventional
Source National Institutes of Health Clinical Center (CC)
Contact
Status Suspended
Phase Phase 2
Start date September 6, 2018
Completion date March 23, 2028

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