Clinical trial NCT04745403: Redirected HBV-Specific T Cells in Patients With HBV-related HCC (SAFE-T-HBV)
Official title: Safety and Tolerability Study of Redirected HBV-Specific T Cells in Patients With Hepatitis B Virus (HBV)-Related Hepatocellular Carcinoma (SAFE-T-HBV)
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: PHASE1
Conditions: Hepatocellular Carcinoma
Keywords: Hepatitis B virus
Hepatocellular Carcinoma
Lead sponsor: Lion TCR Pte. Ltd.
Sponsor class: INDUSTRY
First posted: 2021-02-09
Enrollment: 10
Sex: ALL
Minimum age (years): 21
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This is a single center, single arm and open-label study to determine the safety of mRNA modified HBV-TCR redirected T-cells and to analyze the changes in tumor microenvironment caused by these HBV-TCR redirected T-cells in subjects with HBV-related HCC who are not amenable to/failed conventional treatment.


Eligibility criteria: Key Inclusion Criteria:

1. Eastern Cooperative Oncology Group (ECOG) performance status ≤1
2. Presence of primary hepatocellular carcinoma in the liver with presence of measurable tumour by RECIST 1.1 criteria, that is not amenable to, or failed, conventional treatment options
3. Serum HBsAg positivity
4. Non-cirrhotic or compensated cirrhosis Child-Pugh A (5 - 6 points)
5. Life expectancy of at least 3 months
6. HLA class 1 profile matching HLA-class I restriction element of the available T cell receptors (restricted by either HLA-A\*02:01 or HLA-A\*24:02).

Key Exclusion Criteria:

1. Brain metastasis
2. Second primary malignancy that is clinically detectable at the time of consideration for study enrolment, except for in situ carcinoma of the cervix, non-melanoma skin carcinoma localized prostate cancer, ductal carcinoma in situ, or Stage I uterine cancer and superficial bladder tumors
3. Use of immune checkpoint inhibitors and/or tyrosine kinase inhibitor (TKI) within 5 half-lives of the drug prior to baseline liver biopsy procedure
4. Alterations of concomitant medications which could potentially cause drug induced liver injury and affect liver biopsy result within 3 months of baseline liver biopsy procedure.
5. Likelihood to require any immunosuppressive treatments during the period of the clinical trial.
6. 7. Last RFA/TACE treatment within 3 months prior to first LioCyx-M infusion; Last Y90 therapy treatment within 6 months prior to first dose of mRNA HBV/TCR T-cells
7. Decompensated cirrhosis Child-Pugh B or C (7 - 15 points)
8. Concurrent administration of any other anti-tumour therapy, including cytotoxic chemotherapy, hormonal therapy, and immunotherapy.
9. Use of any investigational product (IP) or investigational medical device within 30 days of study drug administration
10. Serum HBV DNA levels ≥ 200 IU/ml at screening
11. Serum HBsAg levels ≥ 10,000 IU/ml at screening
12. Lack of peripheral venous or central venous access or any condition that would interfere with drug administration or collection of study samples
13. Any condition or active infections which, in the investigator's opinion, makes the subject unsuitable for trial participation
14. Women who are pregnant or breast-feeding

Primary outcomes:
measure: Safety evaluation of mRNA HBV/TCR T-cell treatment
timeFrame: Start of treatment until 28 days post last dose
measure: Analysis of modifications of tumour microenvironment caused by mRNA HBV/TCR T-cell treatment
timeFrame: Start of treatment until end of study
Secondary outcomes:
measure: Evaluation of anti-tumor efficacy of mRNA HBV/TCR T-cell treatment
timeFrame: Up to 4 years
measure: Evaluation of anti-tumor efficacy of mRNA HBV/TCR T-cell treatment
timeFrame: Up to 4 years
measure: Evaluation of anti-tumor efficacy of mRNA HBV/TCR T-cell treatment
timeFrame: Up to 4 years
Other outcomes:
Locations:
city: Singapore
country: Singapore
facility: Singapore General Hospital
Study officials:
References:
citation: Koh S, Shimasaki N, Suwanarusk R, Ho ZZ, Chia A, Banu N, Howland SW, Ong AS, Gehring AJ, Stauss H, Renia L, Sallberg M, Campana D, Bertoletti A. A practical approach to immunotherapy of hepatocellular carcinoma using T cells redirected against hepatitis B virus. Mol Ther Nucleic Acids. 2013 Aug 13;2(8):e114. doi: 10.1038/mtna.2013.43.
citation: Kah J, Koh S, Volz T, Ceccarello E, Allweiss L, Lutgehetmann M, Bertoletti A, Dandri M. Lymphocytes transiently expressing virus-specific T cell receptors reduce hepatitis B virus infection. J Clin Invest. 2017 Aug 1;127(8):3177-3188. doi: 10.1172/JCI93024. Epub 2017 Jul 24.
citation: Tan AT, Yang N, Lee Krishnamoorthy T, Oei V, Chua A, Zhao X, Tan HS, Chia A, Le Bert N, Low D, Tan HK, Kumar R, Irani FG, Ho ZZ, Zhang Q, Guccione E, Wai LE, Koh S, Hwang W, Chow WC, Bertoletti A. Use of Expression Profiles of HBV-DNA Integrated Into Genomes of Hepatocellular Carcinoma Cells to Select T Cells for Immunotherapy. Gastroenterology. 2019 May;156(6):1862-1876.e9. doi: 10.1053/j.gastro.2019.01.251. Epub 2019 Jan 31.