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TAF in Early/Middle Pregnancy With CHB

Efficacy and Safety of TAF Used in Early and Middle Pregnancy With Chronic Hepatitis B: a Multicenter Prospective Cohort Study

Status
Enrolling by invitation
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07668934
Acronym
TAF;CHB
Enrollment
816
Registered
2026-06-25
Start date
2025-03-31
Completion date
2028-03-30
Last updated
2026-06-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Early Pregnancy, Hepatitis B Infection, Pregnant Women

Brief summary

The goal of this clinical trial is to study the efficacy and safety of Tenofovir alafenamide (TAF) vs Tenofovir disoproxil fumarate(TDF) in early and middle pregnancy with chronic hepatitis B.

Detailed description

The goal of this clinical trial is to study the efficacy and safety of Tenofovir alafenamide (TAF) vs Tenofovir disoproxil fumarate(TDF) in early and middle pregnancy with chronic hepatitis B. Previous studies have found that TAF has good clinical efficacy in the treatment of antiviral therapy in patients with chronic hepatitis B. In order to evaluate the clinical efficacy of TAF after antiviral therapy in pregnant women with chronic hepatitis B in the first and second trimesters, the clinical efficacy of TAF after antiviral therapy was evaluated by comparing the safety (including changes in maternal ALT, bilirubin, creatinine, blood phosphorus, blood lipids, fetal malformation rate, neonatal birth defects, head circumference, height, weight, intelligence and other indicators) and effectiveness (viral load decrease, serological conversion, mother-to-fetal blockade, etc.) with the TDF group.

Interventions

DRUGTAF

Taking TAF from early or middle pregnancy

DRUGTDF

Taking TDF from early or middle pregnancy

Sponsors

The Third Affiliated Hospital of Guangzhou Medical University
Lead SponsorOTHER
Second Affiliated Hospital of Guangzhou Medical University
CollaboratorOTHER
Qingyuan People's Hospital
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
20 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Between the ages of 20 and 40 * HBsAg positive for \>= 6 months * 0-24 week of pregnancy * Meets the indications for antiviral therapy in the 2022 version of the guidelines for the prevention and treatment of chronic hepatitis B * It is planned to use TAF or TDF antiviral therapy until the end of delivery or long-term administration, and follow-up will be carried out in this research institution * Signed informed consent for medication

Exclusion criteria

* Previous use of anti-hepatitis B virus drugs (e.g., entecavir, tenofovir, tenofovir alafenol, emintenofovir, adefovir dipoproxil, telbivudine, etc.) * Concomitant viral hepatitis A, C, E or other hepatotropic virus infection or AIDS * Concomitant cirrhosis, liver cancer or other chronic liver diseases (e.g., alcoholic liver, autoimmune liver disease, G6PD deficiency, etc.) * Patients with heart (such as coronary heart disease, myocardial infarction, heart failure, etc.), lung (such as: lung cancer, chronic obstructive pulmonary disease, tuberculosis, etc.), kidney (such as: renal failure, elevated creatinine, nephritis, nephrotic syndrome, etc.) and other important organ diseases * Chronic diseases such as autoimmune diseases (such as systemic lupus erythematosus, rheumatoid arthritis, anticoagulant antibody syndrome), hypertension, diabetes, thyroid disease, etc * Patients with previous pregnancy complications (such as: gestational hypertension, gestational diabetes, gestational eclampsia, etc.) * Those who have had fetal or neonatal growth and development defects in previous pregnancies * Previous or ongoing use of nephrotoxic medications, glucocorticoids, nonsteroidal anti-inflammatory drugs, cytotoxic drugs, or immunomodulators * Premedication ultrasound showed fetal malformations, fetal development abnormalities, placental abnormalities, threatened abortion, etc

Design outcomes

Primary

MeasureTime frameDescription
To assess the incidence of ALT above normal (>=1 time) of mothernot more than 48 weeksFrom the time of initiation of antiviral and normal ALT until delivery

Secondary

MeasureTime frameDescription
To assess the level of HBV-DNA of babynot more than 7 monthsAt birth; At 7 months of age
To assess the level of HBV-DNA of mothernot more than 48 weeksEvery 4 weeks of pregnancy
To assess the results of liver Ultrasound of mothernot more than 48 weeksAt the time of enrollment; During childbirth
To assess the weight in kilograms of babynot more than 7 monthsAt birth; At 7 months of age
To assess the height in meters of babynot more than 7 monthsAt birth; At 7 months of age
The number of HBsAg positive of babynot more than 7 monthsAt birth; At 7 months of age
The number of HBeAg positive of babynot more than 7 monthsAt birth; At 7 months of age
The number of HBsAg positive of mothernot more than 48 weeksEvery 4 weeks of pregnancy
The number of HBeAg positive of mothernot more than 48 weeksEvery 4 weeks of pregnancy
The rate of deformitynot more than 48 weeksFetal period
The rate of Birth defect1 dayAt birth
The levels of creatinine of mothernot more than 48 weeksFrom the time of initiation of antiviral until delivery
The levels of blood lipids of mothernot more than 48 weeksFrom the time of initiation of antiviral until delivery

Countries

China

Contacts

PRINCIPAL_INVESTIGATORPanpan Zhai

The Third Affiliated Hospital of Guangzhou Medical University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 26, 2026