New study aims to outsmart hepatitis b drug resistance
NCT ID NCT07459426
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the hepatitis B virus changes over time in people taking antiviral drugs. Researchers will analyze blood samples from 700 adults in Turkey to see if the virus becomes resistant to treatment. The goal is to help doctors choose the best medications for each patient.
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.
- Participants
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About 700 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Mar 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Adult (≥18 years) HBsAg-positive patients with a documented history of lamivudine therapy for ≥6 months who were subsequently switched to tenofovir-based therapy (ADV, TDF, or TAF) and have not received entecavir or telbivudine.
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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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: * Age ≥18 years * HBsAg positive * Group 1: Either treatment-naïve participants with HBV DNA\>2000 IU/ml * Group 2: Prior lamivudine therapy ≥6 months with switch to ADVor TDF or TAF * Ability to provide informed consent Exclusion Criteria: * Prior entecavir exposure * Prior telbivudine exposure * Age \<18 years * Inability to provide informed consent Note: Previous adefovir or (pegylated) interferon use is not an exclusion criterion. Patients with insufficient sample volume or inadequate DNA quality for sequencing will be excluded from final analysis.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Gaziantep University
Gaziantep, Turkey (Türkiye)
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Other studies related to the condition(s) this trial covers.
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