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A Clinical Study on Therapeutic Double-plasmid Hepatitis B Virus (HBV) DNA Vaccine in Patients With HBeAg-positive Chronic Hepatitis B

Primary Purpose

Chronic Hepatitis B Patients With HBeAg-positive

Status
Unknown status
Phase
Phase 2
Locations
China
Study Type
Interventional
Intervention
HBV DNA Vaccine
Sponsored by
The 458 Hospital of Chinese PLA
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Chronic Hepatitis B Patients With HBeAg-positive focused on measuring Chronic hepatitis B patients

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

The following conditions must be met for all enrolled subjects:

  1. Aged 18-65 years with either sex;
  2. HBV serology meet the following criteria:

    • HBsAg-positive lasting for at least 6 months at the time of screening;
    • HBeAg-positive at the time of screening;
    • Serum HBV DNA≥1.0×10E5 copies/ml at the time of screening
  3. 80U/L<ALT<400U/L;
  4. TBIL<40μmol/L;
  5. No YMDD mutation of the HBV drug resistance gene
  6. Subjects agree not to participate in any other clinical trial or take any other anti-HBV therapeutics during the study;
  7. Subjects understand and sign the ICF which approved by EC, and are able to comply with the study procedures and complete the study.

Exclusion Criteria:

Subjects meeting the following conditions will not be enrolled in the study:

  1. Was suspected with HCC by the following evidence:

    • B-Ultrasound or imaging which shows occupying lesions;
    • Continuingly elevating serum AFP level even if the B-Ultrasound is normal;
    • AFP >100ng/ml;
  2. With acute hepatic decompensation caused by liver disease aggravation or with clinical symptoms of decompensated liver disease at baseline;
  3. Serum Cr≥1.5mg/dl (≥130μmol/l) at the time of screening;
  4. Serum amylase > two-fold of the upper limit of the normal reference value;
  5. Hb (male<100g/ L, female<90g/L), WBC<3.5×10E9/L,PLT<60×10E9/L (except hypersplenism and cirrhosis);
  6. Co-infection with HCV (anti-HCV positive), HIV and anti-HAV IgM positive, anti-HDV IgM positive, anti-HEV IgM positive, anti-CMV IgM positive and autoimmune hepatitis (e.g. antinuclear antibody titer>1:160 ) or other active liver disease caused by known or unknown factors;
  7. Any other serious disease or active diseases other than hepatitis B that are considered by investigators to be potential factors that may interfere with the therapy, assessment or compliance with the protocol, including any uncontrolled diseases with clinical significance, e.g. kidney, heart, lung, blood vessel, neurogenic, digestive system and metabolic diseases (diabetes, hyperthyroidism, adrenal gland diseases), autoimmune dysfunctions, and tumors, etc;
  8. History of alcohol or drug abuse that is considered by investigators that could affect subject's compliance with the protocol or could influence the result of the analysis;
  9. Pregnant or breast-feeding female subjects, or those who plan to be pregnant during the course of the study or male subjects' companions who plan to be pregnant during the course of the study;
  10. Having used immunosuppressive agents, immunomodulators (thymosin), cytotoxic drugs within 6 months or transaminase-decreasing drugs within one month prior to the initiation of this study;
  11. Having used anti-HBV drugs (Lamivudine, interferon, adefovir, entecavir, or sebivo, etc.) within 6 months prior to the initiation of this study;
  12. Had or planning to have liver transplantation;
  13. Having received experimental drug treatment from any other study within 3 months prior to the screening;
  14. Allergic to nucleoside drugs or nucleoside analogues;
  15. Not agreeing to the study protocol or any other factors considered not eligible for this study by investigators.

Sites / Locations

  • Department of Infections Disease of Peking University First Hospital

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Placebo Comparator

Arm Label

Vaccine+Lamivudine group

Placebo+Lamivudine group

Arm Description

Subjects assigned into the experimental and the controlled groups with randomization and double-blindness by a ratio of 2:1

Outcomes

Primary Outcome Measures

The change of HBV DNA load at Week 72

Secondary Outcome Measures

The rate of subjects with HBV DNA titer reducing > 2 logarithms .
The change of HBeAg and HBsAg titer.
The change of ALT.
HBsAg/HBeAg serum conversion rate.
The INF-gamma expression level in peripheral blood mononuclear cells (PBMC).
The amount of HBV-specific CTL.
The change of expression level of peripheral cytokines (IL-4、IL-10、IL-12 and INF-gamma) against the baseline level.
The different occurence rates of HBV Drug Resistance Gene (YMDD) between the 2 arms.

Full Information

First Posted
August 25, 2010
Last Updated
August 26, 2010
Sponsor
The 458 Hospital of Chinese PLA
Collaborators
Guangzhou Baidi Biotechnology Co., Ltd, Guangzhou Pharmaceucal Company Limited
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1. Study Identification

Unique Protocol Identification Number
NCT01189656
Brief Title
A Clinical Study on Therapeutic Double-plasmid Hepatitis B Virus (HBV) DNA Vaccine in Patients With HBeAg-positive Chronic Hepatitis B
Official Title
A Multicenter, Randomized, Double-blind, Placebo-controlled Clinical Study on Specific-Population to Evaluate the Safety and Efficacy of Therapeutic Double-plasmid HBV DNA Vaccine in HBeAg-positive Patients With Chronic Hepatitis B
Study Type
Interventional

2. Study Status

Record Verification Date
February 2009
Overall Recruitment Status
Unknown status
Study Start Date
January 2009 (undefined)
Primary Completion Date
November 2010 (Anticipated)
Study Completion Date
December 2010 (Anticipated)

3. Sponsor/Collaborators

Name of the Sponsor
The 458 Hospital of Chinese PLA
Collaborators
Guangzhou Baidi Biotechnology Co., Ltd, Guangzhou Pharmaceucal Company Limited

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
To preliminarily evaluate the efficiency and safety of therapeutic double- plasmid HBV DNA vaccine on HBeAg-positive, chronic hepatitis B patients, and provide evidence for the next dosing regimen.
Detailed Description
The current study is a multicenter, randomized, double-blind, placebo- controlled clinical trial. The eligible subjects are assigned randomly into 2 arms, the Vaccine + Lamivudine group and the Placebo + Lamivudine group, respectively, by a ratio of 2:1. The efficacy variables include the change of HBV DNA load at Week 72, and at each visits the rate of subjects with HBV DNA titer reducing > 2 logarithms ,the change of HBeAg and HBsAg titer, the change of ALT, HBsAg/HBeAg serum conversion rate, the INF-gamma expression level in peripheral blood mononuclear cells (PBMC), the amount of HBV-specific CTL, the change of expression level of peripheral cytokines (IL-4,IL-10,IL-12 and INF-gamma) against the baseline level.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Chronic Hepatitis B Patients With HBeAg-positive
Keywords
Chronic hepatitis B patients

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
33 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Vaccine+Lamivudine group
Arm Type
Experimental
Arm Description
Subjects assigned into the experimental and the controlled groups with randomization and double-blindness by a ratio of 2:1
Arm Title
Placebo+Lamivudine group
Arm Type
Placebo Comparator
Intervention Type
Biological
Intervention Name(s)
HBV DNA Vaccine
Other Intervention Name(s)
Therapeutic Double-plasmid HBV DNA Vaccine
Intervention Description
HBV DNA Vaccine, 1mg/ml/syringe, formulation
Primary Outcome Measure Information:
Title
The change of HBV DNA load at Week 72
Time Frame
72 weeks
Secondary Outcome Measure Information:
Title
The rate of subjects with HBV DNA titer reducing > 2 logarithms .
Time Frame
Every 12 weeks
Title
The change of HBeAg and HBsAg titer.
Time Frame
Every 12 weeks
Title
The change of ALT.
Time Frame
Every 12 weeks
Title
HBsAg/HBeAg serum conversion rate.
Time Frame
Every 12 weeks
Title
The INF-gamma expression level in peripheral blood mononuclear cells (PBMC).
Time Frame
Every 12 weeks
Title
The amount of HBV-specific CTL.
Time Frame
Every 12 weeks
Title
The change of expression level of peripheral cytokines (IL-4、IL-10、IL-12 and INF-gamma) against the baseline level.
Time Frame
Every 12 weeks
Title
The different occurence rates of HBV Drug Resistance Gene (YMDD) between the 2 arms.
Time Frame
72 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: The following conditions must be met for all enrolled subjects: Aged 18-65 years with either sex; HBV serology meet the following criteria: HBsAg-positive lasting for at least 6 months at the time of screening; HBeAg-positive at the time of screening; Serum HBV DNA≥1.0×10E5 copies/ml at the time of screening 80U/L<ALT<400U/L; TBIL<40μmol/L; No YMDD mutation of the HBV drug resistance gene Subjects agree not to participate in any other clinical trial or take any other anti-HBV therapeutics during the study; Subjects understand and sign the ICF which approved by EC, and are able to comply with the study procedures and complete the study. Exclusion Criteria: Subjects meeting the following conditions will not be enrolled in the study: Was suspected with HCC by the following evidence: B-Ultrasound or imaging which shows occupying lesions; Continuingly elevating serum AFP level even if the B-Ultrasound is normal; AFP >100ng/ml; With acute hepatic decompensation caused by liver disease aggravation or with clinical symptoms of decompensated liver disease at baseline; Serum Cr≥1.5mg/dl (≥130μmol/l) at the time of screening; Serum amylase > two-fold of the upper limit of the normal reference value; Hb (male<100g/ L, female<90g/L), WBC<3.5×10E9/L,PLT<60×10E9/L (except hypersplenism and cirrhosis); Co-infection with HCV (anti-HCV positive), HIV and anti-HAV IgM positive, anti-HDV IgM positive, anti-HEV IgM positive, anti-CMV IgM positive and autoimmune hepatitis (e.g. antinuclear antibody titer>1:160 ) or other active liver disease caused by known or unknown factors; Any other serious disease or active diseases other than hepatitis B that are considered by investigators to be potential factors that may interfere with the therapy, assessment or compliance with the protocol, including any uncontrolled diseases with clinical significance, e.g. kidney, heart, lung, blood vessel, neurogenic, digestive system and metabolic diseases (diabetes, hyperthyroidism, adrenal gland diseases), autoimmune dysfunctions, and tumors, etc; History of alcohol or drug abuse that is considered by investigators that could affect subject's compliance with the protocol or could influence the result of the analysis; Pregnant or breast-feeding female subjects, or those who plan to be pregnant during the course of the study or male subjects' companions who plan to be pregnant during the course of the study; Having used immunosuppressive agents, immunomodulators (thymosin), cytotoxic drugs within 6 months or transaminase-decreasing drugs within one month prior to the initiation of this study; Having used anti-HBV drugs (Lamivudine, interferon, adefovir, entecavir, or sebivo, etc.) within 6 months prior to the initiation of this study; Had or planning to have liver transplantation; Having received experimental drug treatment from any other study within 3 months prior to the screening; Allergic to nucleoside drugs or nucleoside analogues; Not agreeing to the study protocol or any other factors considered not eligible for this study by investigators.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Yu Yanyan, Professor
Organizational Affiliation
SFDA
Official's Role
Principal Investigator
Facility Information:
Facility Name
Department of Infections Disease of Peking University First Hospital
City
Beijing
State/Province
Beijing
ZIP/Postal Code
100034
Country
China

12. IPD Sharing Statement

Learn more about this trial

A Clinical Study on Therapeutic Double-plasmid Hepatitis B Virus (HBV) DNA Vaccine in Patients With HBeAg-positive Chronic Hepatitis B

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