A Phase 1 interventional study of Cyclophosphamide and TBI-1301 in NY-ESO-1 Expressing Solid Tumors in HLA-A2 Positive Patients, Synovial Sarcoma and Melanoma, sponsored by University Health Network, Toronto. Active, not recruiting at 1 site in Canada. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2025-12-03.
Sponsored by University Health Network, Toronto · Phase 1, Interventional, and Treatment
The target populations for this phase I study with TBI-1301 are patients with advanced solid tumors. Patients' tumors will be required to express NY-ESO-1, which include but is not limited to ovarian cancer, synovial sarcoma, esophageal cancer, lung cancer, bladder cancer, liver cancer, and malignant melanoma. Patients must be positive for HLA-A*02:01 or HLA-A*02:06 and the patient's tumor tissue must be positive for NY-ESO-1 antigen expression. The study will take the subject's T cells, which are a natural type of immune cell in the blood, and send them to a laboratory to be modified. The changed T cells used in this study will be the subject's own T cells that have been genetically changed with the aim of attacking and destroying cancer cells.
The manufacturing of T cells takes about 1 month to complete. The T cells will be given back to the subject through an intravenous infusion. The purpose of this study is to test the safety of genetically changed T cells and find out what effects, if any, they have in subjects with advanced solid tumors.
The purpose of this study is to evaluate the safety profile of TBI-1301, to determine the recommended phase 2 (RP2D) dose of TBI-1301 when administered following cyclophosphamide and fludarabine pre-treatment, to evaluate the safety of repeat dosing of TBI-1301, to assess the presence/absence of RCR appearance after TBI-1301 infusion, to assess the presence or absence of clonality by LAM-PCR, and to evaluate evidence of efficacy of TBI-1301 using RECIST v1.1.
Exclusion Criteria:
Cyclophosphamide will be given intravenously (by vein) at a fixed dose of 750mg/m\^2/d for 2 days. Fludarabine will be given intravenously at a fixed dose of 30mg/m\^2/d for 2 days. TBI-1301 cells will be infused on Day 0 at a dose of 5x10\^9 cells. \*Patients will only enter into this cohort if they have already been enrolled in another cohort prior
Drug: Cyclophosphamide · Biological: TBI-1301 · Drug: Fludarabine
Cyclophosphamide will be given intravenously (by vein) at a fixed dose of 750mg/m\^2/d for 2 days. Fludarabine will be given intravenously at a fixed dose of 30mg/m\^2/d for 2 days. TBI-1301 cells will be infused on Day 0 and Day 14 at a dose of 5x10\^9 cells.
Drug: Cyclophosphamide · Biological: TBI-1301 · Drug: Fludarabine
Safety profile (i.e. adverse events, presence/absence of RCR, analysis of clonality and PK of TBI-1301) assessed by CTCAE v.4.0 and laboratory testings.
Time frame: 8 weeks
Recommended phase 2 (RP2D) dose o TBI-1301 when administered following cyclophosphamide and fludarabine pre-treatment
Time frame: 8 weeks
Evidence of efficacy (i.e. anti-tumor effect) of TBI-1301 measured using RECIST v1.1
Time frame: 8 weeks
This study is active, not recruiting, as verified in Nov 2025. You cannot join it, but the record below documents what was studied.
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University Health Network, Toronto