This phase Ib trial studies the side effects and best dose of autologous CD8 positive (+) SLC45A2-specific T lymphocytes when given together with cyclophosphamide, aldesleukin, and ipilimumab, and to see how well they work in treating patients with uveal melanoma that has spread to other places in the body (metastatic). To make specialized CD8+ T cells, researchers separate out T cells collected from patients' blood and treat them so they are able to target melanoma cells. The blood cells are then given back to the patients. This is known as "adoptive T cell transfer" or "adoptive T cell therapy." Drugs used in chemotherapy, such as cyclophosphamide, may work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Biological therapies, such as aldesleukin, use substances made from living organisms that may stimulate the immune system in different ways and stop tumor cells from growing. Immunotherapy with monoclonal antibodies, such as ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving autologous CD8+ SLC45A2-specific T lymphocytes together with cyclophosphamide, aldesleukin, and ipilimumab may work better in treating patients with metastatic uveal melanoma.
PRIMARY OBJECTIVE: I. To determine the maximum tolerated dose (MTD) of adoptively transferred SLC45A2-specific cytotoxic T-lymphocytes (CTL) for the treatment of patients with metastatic uveal melanoma. SECONDARY OBJECTIVES: I. To establish the anti-tumor efficacy as measured by immune-related response criteria (irRC) and duration of response in metastatic uveal melanoma patients receiving autologous CD8+ T cells against SLC45A2. II. To assess the safety and tolerability of adoptively transferred SLC45A2-specific CTL in combination with immune checkpoint blockade in metastatic uveal melanoma patients. III. To quantify in vivo numeric and functional persistence of transferred CTL, and development of antigen spreading in metastatic uveal melanoma patients. IV. To assess overall survival and progression-free survival in metastatic uveal melanoma patients. OUTLINE: This is a dose escalation study of autologous CD8+ SLC45A2-specific T lymphocytes. PREPARATIVE REGIMEN: Patients receive cyclophosphamide intravenously (IV) over 30-60 minutes on day -2. T-CELL INFUSION: Patients receive autologous CD8+ SLC45A2-specific T lymphocytes via hepatic arterial infusion via central catheter over 60 minutes on day 0. Within 6 hours of T-cell infusion, patients also receive aldesleukin twice daily (BID) subcutaneously (SC) for 14 days in the absence of disease progression or unacceptable toxicity. POST T-CELL INFUSION: Patients receive ipilimumab IV over 90 minutes on days 1, 22, 43, and 64 in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at days 84 and 168, and then every 3 months for up to 5 years.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
34
Given SC
Given via hepatic arterial infusion via central catheter
Given IV
Given IV
M D Anderson Cancer Center
Houston, Texas, United States
Maximum tolerated dose (MTD)
As determined by dose limiting toxicity (DLT). MTD defined at the highest dose at which no more than 1 in 6 patients has experienced DLT.
Time frame: Up to 6 weeks
Overall response rate
As measured by immune-related response criteria. Overall response will be monitored simultaneously using the Bayesian approach of Thall, Simon, Estey and the extension by Thall and Sung. Logistic regression will be used to assess the impact of patient characteristics on the overall response rate.
Time frame: Up to 5 years
Duration of clinical response (DOR)
DOR will be estimated using the method of Kaplan and Meier. Comparison of time-to-event endpoints by important subgroups of patients will be made using the log-rank test. Cox (proportional hazards) regression will be used to evaluate multivariable predictive models of time-to-event outcomes. Continuous variables (e.g., age, etc.) will be summarized using the mean (standard deviation) or median (range). Frequency tables will be used to summarize categorical variables.
Time frame: From the start of study treatment up to 5 years
Persistence of in vivo T cells and non-target antigen recognition
Continuous variables (e.g., age, etc.) will be summarized using the mean (standard deviation) or median (range). Frequency tables will be used to summarize categorical variables. The distribution of time-to-event endpoints will be estimated using the method of Kaplan and Meier. Comparison of time-to-event endpoints by important subgroups of patients will be made using the log-rank test. Cox proportional hazards) regression will be used to evaluate multivariable predictive models of time-to-event outcomes.
Time frame: From the start of study treatment up to 5 years
Overall survival (OS)
OS will be estimated using the method of Kaplan and Meier. Comparison of time-to-event endpoints by important subgroups of patients will be made using the log-rank test. Cox (proportional hazards) regression will be used to evaluate multivariable predictive models of time-to-event outcomes. Continuous variables (e.g., age, etc.) will be summarized using the mean (standard deviation) or median (range). Frequency tables will be used to summarize categorical variables.
Time frame: From the start of study treatment up to 5 years
Progression-free survival (PFS)
PFS will be estimated using the method of Kaplan and Meier. Comparison of time-to-event endpoints by important subgroups of patients will be made using the log-rank test. Cox (proportional hazards) regression will be used to evaluate multivariable predictive models of time-to-event outcomes. Continuous variables (e.g., age, etc.) will be summarized using the mean (standard deviation) or median (range). Frequency tables will be used to summarize categorical variables.
Time frame: From the start of study treatment up to 5 years
Time to response
Continuous variables (e.g., age, etc.) will be summarized using the mean (standard deviation) or median (range). Frequency tables will be used to summarize categorical variables. The distribution of time-to-event endpoints will be estimated using the method of Kaplan and Meier. Comparison of time-to-event endpoints by important subgroups of patients will be made using the log-rank test. Cox proportional hazards) regression will be used to evaluate multivariable predictive models of time-to-event outcomes.
Time frame: From the start of study treatment up to 5 years
Incidence of toxicity
Toxicity will be monitored simultaneously using the Bayesian approach of Thall, Simon, Estey and the extension by Thall and Sung. An Efficacy/ Summary will be submitted to the Investigational New Drug (IND) Office Medical Monitor after every six evaluable patients complete 12 weeks of study treatment.
Time frame: Up to 5 years
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