New hope for moms with hepatitis b: drug may stop baby from getting the virus
NCT ID NCT05853718
First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This study is testing a drug called TAF (tenofovir alafenamide) in pregnant women with chronic hepatitis B. The goal is to see if taking TAF daily from week 28-32 of pregnancy until delivery can prevent the baby from catching the virus. Researchers will also check how the drug moves through the mother's body and look for any safety issues in both mother and child. About 50 women aged 20-40 with high virus levels are being recruited.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Tenofovir alafenamide (TAF) tablets
- What this could lead to
- If successful, this could show that TAF is a safe and effective option to prevent passing hepatitis B from mother to baby during childbirth.
- What could go wrong
- This is a small, single-center phase 4 study with only 50 participants, so results may not apply broadly. Risks include unknown effects on the infant and potential side effects from the drug.
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
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2021
- Expected to finish
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Dec 2025
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.
- Ages
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20 to 40 years
- Sex
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Female participants only
- 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 of 20-40 years; Positive for hepatitis B surface antigen (HBsAg) and hepatitis B virus e antigen (HBeAg); HBV DNA level \>200 000 IU/mL during the 24th-32nd week of pregnancy; Willing to take TAF for mother-to-child blockade; Both husband and wife are willingly sign an informed consent. Exclusion Criteria: * Co-infected with hepatitis C or HIV, or other chronic diseases; History of spontaneous abortion or congenital malformation; Decompensated cirrhosis and liver cancer; History of kidney injury, CCr \<50ml/min and urine protein test positive (\>300mg/L); Fetal malformations detected by B-ultrasound during pregnancy; ALT \> 2×upper limit of normal (ULN); TBIL ≥ 1×ULN; Albumin (ALB) \< 25 g/L.
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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.
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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Hangzhou First People's Hospital
RECRUITINGHangzhou, Zhejiang, 310000, China
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