DNA vaccine trial aims to wake up immune system against hepatitis b
NCT ID NCT00988767
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early-stage trial tested a DNA vaccine in 10 adults with chronic hepatitis B who had not responded to standard treatments. The vaccine was designed to train the immune system to fight the virus. The main goal was to check safety, with a secondary goal of seeing if the vaccine could restore immune responses.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- DNA vaccine (pCMV-S2.S DNA)
- What this could lead to
- If successful, this approach could help control chronic hepatitis B by boosting the immune system, potentially reducing the need for lifelong medication.
- What could go wrong
- This is a very early phase 1 trial with only 10 participants, so it is primarily testing safety. The vaccine may not produce strong enough immune responses to control the virus.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
-
10 people
The number who actually took part.
- Start date
-
Feb 2001
- Finished
-
Oct 2004
- Lead sponsor
-
A government agency
The lead sponsor is a government body.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 60 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * chronic HBV carriers * biopsy proven chronic hepatitis * active HBV replication for \> 6 months * non responding to Interferon-alpha or lamivudine treatment Exclusion Criteria: * co-infection with HIV, HCV, delta hepatitis virus * alcohol consumption\> 40g/day * decompensated liver disease * HLA DR2
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Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Service d'Hepatologie, Hopital Necker Enfants Malades
Paris, 75015, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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