Study of TBI-1301 (NY-ESO-1 Specific TCR Gene Transduced Autologous T Lymphocytes) in Patients With Solid Tumors

November 25, 2025 updated by: University Health Network, Toronto

Phase Ib Study of TBI-1301 (NY-ESO-1 Specific TCR Gene Transduced Autologous T Lymphocytes) in Patients With Solid Tumors

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.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

22

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 2M9
        • Princess Margaret Cancer Centre

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Histologically or cytologically confirmed metastatic or recurrent unresectable solid tumor.
  • HLA-A*02:01 or HLA-A*02:06 positive.
  • Tumor NY-ESO-1 expression by immunohistochemistry.
  • No anti-cancer chemotherapy, radiation therapy or immunotherapy within 2 weeks or 5 half-lives of PBMC harvest.
  • The treating investigator should consider the patient to have disease that is incurable and that the patient would be a reasonable candidate for future treatment with TBI-1301.
  • Patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as >10 mm with CT scan, MRI, or calipers by clinical exam. Patients must have radiographic evidence of disease progression following the most recent line of treatment. Areas of previous radiation may not serve as measurable disease unless there is evidence of progression post radiation.
  • ECOG Performance Status 0 or 1.
  • Age ≥16 years on consent.
  • Life expectancy greater than 4 months.
  • The following laboratory requirements must be met (within 14 days prior to phlebotomy for generation of TBI-1301):
  • Absolute neutrophil count (ANC) ≥1.5 x10^9/L (1500/μL) without G-CSF support
  • WBC ≥ 2.5x10^9/L (2,500/μl)
  • Lymphocytes ≥ 0.5x10^9/L (500/μl)
  • Hemoglobin ≥ 80 g/L
  • Platelets ≥ 75x10^9/L (75,000/μl)
  • Total bilirubin ≤ 1.5 x upper limit of normal (ULN) (≤2.5X if Gilbert's disease)
  • AST(SGOT), ALT(SGPT) < 3.0 x ULN (< 5 x ULN with known liver metastases)
  • Creatinine ≥ 60 ml/min (calculated by Cockcroft and Gault)
  • Adequate renal function
  • Consent must be appropriately obtained in accordance with applicable local and regulatory requirements.

Exclusion Criteria:

  • Uncontrolled intercurrent illnesses or medical conditions that may interfere with trial participation such as ongoing or active infection, symptomatic congestive heart failure, uncontrolled hypertension, unstable angina pectoris, cardiac arrhythmia, severe active peptic ulcer disease or gastritis, or psychiatric illness/social situations that would limit compliance with study requirement or compromise the ability of the subject to give written informed consent.
  • Patients who are receiving any other investigational agents.
  • Active or prior documented autoimmune disease within the past 2 years. NOTE: Subjects with vitiligo, Grave's disease, Hashimoto's disease, or psoriasis not requiring systemic treatment (within the past 2 years) are not excluded.
  • Active or prior documented inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis).
  • No evidence of active uncontrolled infection (patients on antibiotics are eligible).
  • History of primary immunodeficiency.
  • History of organ transplant that requires use of immunosuppressives.
  • Known allergy or reaction to a known component of TBI-1301.
  • Untreated central nervous system metastases requiring concurrent treatment, inclusive of but not limited to surgery, radiation, and/or corticosteroids. If treated lesions are shown to be stable for 1 month the subject may be eligible.
  • Other invasive malignancy within 2 years except for noninvasive malignancies such as cervical carcinoma in situ, non-melanomatous carcinoma of the skin or ductal carcinoma in situ of the breast that has/have been surgically cured.
  • Current or prior use of immunosuppressive medication within 14 days before phlebotomy, with the exceptions of intranasal, topical, and inhaled corticosteroids or systemic corticosteroids at physiologic doses not to exceed 10 mg/day of prednisone or equivalent. Oral steroid use as premedication to prevent allergic reactions to radiologic contrast is allowed.
  • Any condition that, in the opinion of the investigator, would interfere with the evaluation of TBI-1301 or interpretation of subject safety or study results.
  • Known history of tuberculosis.
  • HIV positive.
  • Active HTLV or syphilis infection.
  • Active hepatitis B infection (hepatitis B surface antigen or HBV DNA positive).
  • Active hepatitis C infection (if hepatitis C antibody positive, HCV RNA positive).
  • Has no known active central nervous system metastases and/or carcinomatous meningitis.
  • Ongoing prior toxicities related to previous anti-cancer treatments (surgery, radiotherapy or adjuvant chemo-radiation) must be recovered to < grade 1 or baseline
  • Pregnant women are excluded.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cohort B (retreatment)

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
Drug: Fludarabine
Biological: TBI-1301
Experimental: Cohort C (double infusion)

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
Drug: Fludarabine
Biological: TBI-1301

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
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
8 weeks
Recommended phase 2 (RP2D) dose o TBI-1301 when administered following cyclophosphamide and fludarabine pre-treatment
Time Frame: 8 weeks
8 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Evidence of efficacy (i.e. anti-tumor effect) of TBI-1301 measured using RECIST v1.1
Time Frame: 8 weeks
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Health Network, Toronto

Collaborators

Takara Bio Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2016

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

November 1, 2026

Study Registration Dates

First Submitted

August 9, 2016

First Submitted That Met QC Criteria

August 15, 2016

First Posted (Estimated)

August 16, 2016

Study Record Updates

Last Update Posted (Estimated)

December 3, 2025

Last Update Submitted That Met QC Criteria

November 25, 2025

Last Verified

November 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1301-02

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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