A Phase IIa Study to Assess the Efficacy and Safety of Burfiralimab(hzVSF-v13) and OAD (Oral Antiviral Drug)
Study Details
Study Description
Brief Summary
This is a multicenter, randomized, double-blind, parallel group, 48-week follow-up, Phase IIa clinical study. This study has been designed to evaluate the change in HBsAg (log10 IU/mL) after administration of hzVSF-v13 50 mg/dose and hzVSF-v13 200 mg/dose in combination with an oral antiviral agent (Tenofovir or entecavir, including salt-free or salt-modifying drugs) compared to an oral antiviral agent in combination with a placebo (normal saline) in patients with chronic hepatitis B who are stably receiving an oral antiviral agent (Tenofovir or entecavir, including salt-free or salt-modifying drugs) for at least 24 weeks.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Phase 2 |
Detailed Description
Among the subjects who provided a voluntary written consent to participate in this clinical study, the patients with chronic hepatitis B who are stably receiving an oral antiviral agent (Tenofovir or entecavir, including salt-free or salt-modifying drugs) for at least 24 weeks prior to the screening visit can be considered as potential subjects of this study. Only the subjects who completed the final eligibility evaluation at the baseline visit (Visit 2) after the screening tests will be randomized to the hzVSF-v13 50 mg combination group, hzVSF-v13 200 mg combination group (study group) and placebo combination group (control group) at a 1:1:1 ratio at each site. The randomized subjects will receive intravenous administration of hzVSF-v13 or the placebo to match hzVSF-v13 four times with 4 weeks interval for a total of 12 weeks, and oral administration of 1 tablet of an oral antiviral agent will be given once daily for a total of 48 weeks.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Placebo Comparator: Placebo to hzVSF-v13 Placebo to match hzVSF-v13 + oral antiviral agent |
Drug: Standard of care
The following medications listed are allowed to be administered during the course of the clinical study.
Tenofovir (including salt-free or salt-modifying drugs)
Entecavir (including salt-free or salt-modifying drugs)
|
| Experimental: hzVSF-v13 50mg hzVSF-v13 50 mg/dose + oral antiviral agent |
Drug: Standard of care
The following medications listed are allowed to be administered during the course of the clinical study.
Tenofovir (including salt-free or salt-modifying drugs)
Entecavir (including salt-free or salt-modifying drugs)
|
| Experimental: hzVSF-v13 200mg hzVSF-v13 200 mg/dose + oral antiviral agent |
Drug: Standard of care
The following medications listed are allowed to be administered during the course of the clinical study.
Tenofovir (including salt-free or salt-modifying drugs)
Entecavir (including salt-free or salt-modifying drugs)
|
Outcome Measures
Primary Outcome Measures
- Change in HBsAg from the baseline at 24 weeks (log10 IU/mL) [24 weeks]
Baseline statistics for the changes in HBsAg (log10 IU/mL) from the baseline at 24 weeks shall be presented for each group, and a two-sample t-test or the Wilcoxon rank-sum test shall be performed to test differences of each study group compared to the control group.
Secondary Outcome Measures
- Percentage of subjects with HBsAg loss or seroconversion compared to the baseline at 8, 12, 24 and 48 weeks [8, 12, 24, 48 weeks]
The number and percentage of subjects and 95% confidence interval for each treatment group and each evaluation time point shall be presented, and a chi-squared test or the Fisher's exact test shall be performed to test intergroup differences of each study group compared to the control group.
- Percentage of subjects with HBV DNA lower than the lower limit of quantification (LLOQ) compared to the baseline at 24 and 48 weeks [24, 48 weeks]
The number and percentage of subjects and 95% confidence interval for each treatment group and each evaluation time point shall be presented, and a chi-squared test or the Fisher's exact test shall be performed to test intergroup differences of each study group compared to the control group.
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Those who have a history of a diagnosis of chronic hepatitis B more than 24 weeks prior to screening and have been maintaining HBsAg (positive, >100 IU/ml) at screening
-
Those who have an HBV DNA level that is below <20 IU/mL
-
Those who have been receiving tenofovir (including Tenofovir's salt-free or salt-modifying drugs), or entecarvir (including Entecavir's salt-free or salt-modifying drugs) stably for ≥24 weeks prior to screening and anticipated to maintain the identical drug with equivalent dosage and administration during the clinical trial.
Exclusion Criteria:
-
Those with a history of clinically significant chronic liver disease caused by other than chronic HBV infection at the time of screening
-
Patients with a signs of loss of liver function and decompensation of liver disease
-
Patients with uncontrolled diabetes (HbA1c >7.5%)
-
Patients with uncontrolled hypertension
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Chung-Ang University Hospital | Seoul | Korea, Republic of | ||
| 2 | Samsung Medical Center | Seoul | Korea, Republic of | ||
| 3 | Seoul National University Hospital | Seoul | Korea, Republic of | ||
| 4 | Severance Hospital | Seoul | Korea, Republic of |
Sponsors and Collaborators
- ImmuneMed, Inc.
Investigators
- Principal Investigator: Joon Hyeok Lee, M.D. Ph.D., Samsung Medical Center
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- IM_hzVSF-v13-0003