EBV-Specific Anti-PD1 TCR-T Cells in the Treatment of EBV-Positive NHSCC
- Conditions
- Head and Neck Squamous Cell Carcinoma
- Interventions
- Registration Number
- NCT04139057
- Lead Sponsor
- Xinqiao Hospital of Chongqing
- Brief Summary
Epstein-Barr virus (EBV) infections is known to be a high-risk factor to induce nasopharyngeal cancers. To date, EBV-related head and neck squamous cell carcinoma (HNSCC) is still a major concern in east Asia, especially in China. Concurrent therapies for HNSCC have limited response rate and high chance of relapse. However, EBV-induced cancers provided an ideal target for T cell-based immunotherapy due to the non-self origins. Engineered T cells bearing a TCR (TCR-T) that can specifically recognize the presented EBV antigen become a viable approach to treat this type of cancer. Though engineered T therapies have been well-recognized in hematological cancers, solid cancer treatment has been a major hurdle due to the immune-suppressive tumor microenvironment. One key mechanism of tumor-elicited suppression is the PDL1-PD1 interaction which induces T cell exhaustion. Therefore, TCR-T cells armed with a PD1 antagonist could further enhance the efficacy of TCR-T in solid cancers.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- All
- Target Recruitment
- 18
- Expected to live longer than 12 weeks
- PS 0-2
- Pathology confirmed as EBV positive HNSCC, either metastatic or recurrent disease
- Creatinine <2.5mg/dl
- ALT/AST is lower than three times ULN.
- No contraindications of leukocyte collection
- Before entering the trial, women must adopt a reliable method of contraception until 30 days after infusion.
- Understand this trial and have signed an informed consent
- Patients with symptomatic brain metastasis
- With other uncontrolled malignant tumors.
- Hepatitis B or Hepatitis C activity period, HIV infected patients
- Any other uncontrolled disease that interferes with the trial
- Patients with severe heart and cerebrovascular diseases such as coronary heart disease, angina pectoris, myocardial infarction, arrhythmia, cerebral thrombosis and cerebral hemorrhage
- Untreated hypertension or hypertensive patients
- A person with a history of mental illness that is difficult to control
- Researchers do not consider it appropriate to participate in this trial
- Patients who have been using immunosuppressive agents for a long time after organ transplants, except for recent or current inhaled corticosteroids
- Subjects who have been pregnant or nursing, or who plan for pregnancy within 2 months of treatment or after the end of treatment
- An illness affects a person who signs a written consent or complies with a study procedure, or who is unwilling or unable to comply with the research requirements
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description EBV TCR-T EBV-specific TCR-T cell with anti-PD1 auto-secreted element EBV-specific TCR-T cell with anti-PD1 auto-secreted element
- Primary Outcome Measures
Name Time Method The Maximum Tolerated Dose 8 weeks Verify the MTD of TCR-T cells for EBV antigen for treatment. 18 patients will be enrolled in this project, using a dose-escalation approach. The first group of patients will receive 5x10e6/kg TCR-T cells, the second group will receive 1x10e7/kg TCR-T cells, the third group will receive 5x10e7/kg TCR-T cells, the forth group will receive 1x10e8/kg. After confirmation of safety for 5×10e7 dose group, we then added IL-2 on this dose level for consecutive 6 patients. The remaining 6 pts are for enrollment of 1×10e8/kg dose level.
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Department of Oncology, Xinqiao Hospital
🇨🇳ChongQing, Chongqing, China