Chronic Hepatitis b
Conditions
Brief summary
This is a open-label study to evaluate the safety and efficacy of autologous T-cells transfected with messenger ribonucleic acid (mRNA) encoding Hepatitis-B virus (HBV) antigen specific T cell receptor (TCR) in combination with nucleos(t)ide analogues (NAs) in HBeAg-positive and negative chronic hepatitis B patients.
Interventions
Each patient will receive LioCyx-M infusion every one or two weeks, while continuing their existing nucleos(t)ide analog treatment.
Sponsors
Study design
Eligibility
Inclusion criteria
* CHB infection (Serum HBsAg-positive for ≥ 6 months) * Serum HBeAg-positive or negative * HLA class 1 profile matching HLA-class I restriction element of the available T cell receptors (restricted by either HLA-A\*02:01, A\*11:01 or A\*24:02). * Liver biopsy, Fibroscan or equivalent test obtained within the past 6 months demonstrating liver disease consistent with chronic HBV infection without evidence of bridging fibrosis or cirrhosis (≥Metavir 3).
Exclusion criteria
* History or other evidence of chronic liver disease unrelated to HBV infection (e.g., hemochromatosis, autoimmune hepatitis, alcoholic liver disease, toxin exposure, thalassemia, non-alcoholic fatty liver disease) * Decompensated liver function, such as Child-Pugh grade B or C, or clinical signs of decompensated liver function like ascites and varices * Positive HIV test result * History or suspected diagnosis of hepatocellular carcinoma, or AFP at screening \> 20 ng/mL (if AFP \> 20 ng/mL, a liver scan result is required to exclude hepatocellular carcinoma)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Assessments of adverse events | Start of treatment until 28 days post last dose | To evaluate the safety of LioCyx-M |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes in HBeAb levels | Up to 1 year after last dose | To evaluate the anti-viral efficacy of LioCyx-M |
| Changes in HBsAg levels | Up to 1 year after last dose | To evaluate the anti-viral efficacy of LioCyx-M |
| Changes in HBeAg levels | Up to 1 year after last dose | To evaluate the anti-viral efficacy of LioCyx-M |
Countries
China