A Phase 1 interventional study of TIL and Cyclophosphamide in Metastatic Melanoma, sponsored by Centre Hospitalier Universitaire Vaudois. Completed at 1 site in Switzerland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-02-11.
Sponsored by Centre Hospitalier Universitaire Vaudois · Phase 1, Interventional, and Treatment
This is a single center, single arm phase I trial to test the feasibility and safety of Tumor- Infiltrating Lymphocyte-Adoptive Cell Therapy (TIL-ACT) followed by nivolumab rescue in unresectable locally advanced or metastatic melanoma patients. The trial is based on lymphodepleting chemotherapy followed by ACT, utilizing ex vivo expanded TILs in combination with high dose interleukin-2 (IL-2) (optional, depending on patient's tolerance), followed by nivolumab rescue (if indicated) for a maximum duration of 2 years.
The objective of the trial is to define the feasibility and safety of TIL-ACT in metastatic melanoma patients. In addition, the feasibility and safety of nivolumab rescue in patients with advanced metastatic disease is examined.
Study treatment will begin with intravenous non-myeloablative (NMA) lymphodepleting chemotherapy composed by fludarabine and cyclophosphamide. Both treatments will be started on the same day. Fludarabine will be administered for five days, and cyclophosphamide for two days. TILs will be infused intravenously over a period of 20-30 minutes. Between 3 and 24 hours after the infusion of TILs, optional IL-2 will be started as a bolus administration every eight hours at minimum form the start of each administration, for a maximum of eight doses, with a maximum interval of 24 hours. In order to avoid profound and long-lasting neutropenia, pegfilgrastim will be given subcutaneously. Supportive care will be given during the recovery phase from immune depletion and IL-2 therapy.
Nivolumab rescue will be initiated for eligible patients. For all patients, the first on-treatment radiological assessment will be performed 30 days after the TIL infusion, and then at month 3, and then every 12 weeks for the first 3 years of follow-up and every 4-6 months for the next 2 years, until progression.
Two Positron Emission Tomography-Computed Tomography (PET-CT) (18FDG (Fludeoxyglucose (F18)) and 68Ga-NODAGA-RGD ((68)Ga-labelled NOTA-conjugated RGD peptide) will be performed at baseline, following chemotherapy, and between 22-30 days after the TIL infusion.
The safety assessment for TIL-ACT (TLT (treatment-limiting toxicity) period) will extend from day -7 (when NMA chemo starts) till 30 days after TIL infusion.
The first three evaluable patients will be enroled no less than 2 weeks apart from each other. An interim analysis of safety at our center will be performed at the completion of the TLT period of the third evaluable patient.
Patients who have previously undergone tumor resection or biopsy and for whom pre-REP TILs are already available and adequate for further REP expansion. The following conditions have to be met:
Serology:
Hematology
Coagulation
Chemistry:
Patients' toxicities from previous treatments must have recovered to a grade 1 or less according to NCI CTCAE 5.0, except for immune mediated-toxicities described below, as long as they do not put at risk the patient's condition and do not require systemic immunosuppressive steroids at immunosuppressive doses, including but not limited to:
Note: For other medical conditions, prior discussion and agreement with the Principal Investigator is mandatory.
Note: Patients may have undergone minor surgical procedures within the past 3 weeks, as long as all toxicities have recovered to grade 1 or less.
For women of childbearing potential (WOCBP: sexually mature women who have not undergone a hysterectomy, have not been naturally post-menopausal for at least 12 consecutive months or have a serum follicle-stimulating hormone (FSH) \< 40 mIU/ml (milli international units/ml)):
Exclusion criteria:
Patients with an active second malignancy except for
Patient requiring regular systemic immunosuppressive therapy (for example for organ transplantation, chronic rheumatologic disease); all immunosuppressive medications including but not limited to steroids, mycophenolate mofetil, azathioprine, methotrexate, thalidomide, and anti-tumor necrosis factor a (TNFa) agents must have been discontinued within the last two weeks prior to starting NMA chemotherapy.
Note: Use of inhaled or topical steroids or corticosteroid use for radiographic procedures is permitted.
Note: The use of physiologic corticosteroid replacement therapy is permitted.
Non-myeloablative lymphodepleting chemotherapy (cyclophosphamide and fludarabine), Tumor Infiltrating Lymphocyte (TIL)-Adoptive Cell Therapy (ACT), Interleukin-2 (IL-2), Nivolumab rescue
Other: TIL · Drug: Cyclophosphamide · Drug: Fludarabine · Drug: Interleukin-2 · Drug: Nivolumab
Adoptive transfer of Autologous Tumor-Infiltrating Lymphocytes
Cyclophosphamide will be administered as an intravenous (IV) infusion for two days.
Fludarabine will be administered as an intravenous (IV) infusion for five days.
After TIL infusion, IL-2 (optional) will be started as a bolus administration every eight hours, for a maximum of eight doses.
Nivolumab will be administered for maximum 24 months as follows: first year: 240 mg every 2 weeks; second year: 480 mg every 4 weeks.
Feasibility of TIL-ACT - successful Rapid Expansion Protocol (REP)
Number of patients for whom TIL cultures after REP achieve the required cell number and release criteria to start TIL-ACT infusion
Time frame: Evaluated for each patient at day 0 (5-10 days after chemotherapy start). After day 0 of the last patient, the number of patients with successful REP/ start of TIL-ACT infusion will be calculated.
Feasibility of TIL-ACT - successful infusion
Number of patients receiving a complete TIL-ACT infusion (full NMA chemo and at least partial TIL infusion; no minimum IL-2 required)
Time frame: Evaluated for each patient at day 0 (5-10 days after chemotherapy start), up to 60 mins after start of TIL-ACT infusion. At day 0 of the last patient, the number of patients with successful TIL-ACT infusion will be calculated.
Toxicity of TIL-ACT
Number of patients with adverse events as assessed by CTCAE version 5
Time frame: 37 days after chemotherapy start (TLT period)
Feasibility of nivolumab rescue following TIL-ACT
Number of patients included in the 'nivolumab rescue' population
Time frame: 6 months from nivolumab start/ 100 days after end of nivolumab treatment
Toxicity of nivolumab rescue
Number of patients receiving nivolumab with adverse events as assessed by CTCAE version 5.0
Time frame: 6 months from nivolumab start/ 100 days after end of nivolumab treatment
Objective response rate (ORR)
Best overall response
Time frame: 6, 12, 24, 36, 48 and 60 months
Progression free survival (PFS) for TIL-ACT
Time from start of NMA chemotherapy until objective tumor progression (using RECIST criteria and iRECIST) or death if not documented progression.
Time frame: 5 years
Progression free survival (PFS) in the nivolumab rescue phase
Time from start of nivolumab treatment until objective tumor progression (using RECIST criteria and iRECIST) or death if not documented progression.
Time frame: 5 years
Overall survival (OS)
Time from start of NMA chemotherapy until death
Time frame: 5 years
Exploratory endpoints: immune monitoring
Immune monitoring of the peripheral and tumor immune by Human Leukocyte Antigen (HLA) determination, immunohistochemistry, T-cell Receptor (TCR) sequencing, RNA expression and single-cell analyses, in order to correlate immune parameters in the tumor microenvironment with clinical response
Time frame: 5 years
Exploratory endpoints: tumor neoangiogenesis
Tumor neoangiogenesis using 68Ga-NODAGA-RGD PET-CT to explore correlation with clinical response
Time frame: 5 years
Exploratory endpoints: tumor metabolism
Tumor metabolism using 18FDG PET-CT to explore correlation with response to TIL-ACT
Time frame: 5 years
This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.
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Centre Hospitalier Universitaire Vaudois