New hope for hepatitis b: Real-World trial of pradefovir underway
NCT ID NCT07555340
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is testing a drug called pradefovir mesylate in 400 adults with chronic hepatitis B. The goal is to see how well it lowers the virus and how safe it is in everyday medical practice, not just in a strict research setting. Participants are being followed for up to 65 weeks to check if the virus becomes undetectable.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- pradefovir mesylate tablets
- What this could lead to
- If successful, this could confirm pradefovir as a safe and effective antiviral option for controlling chronic hepatitis B, potentially reducing liver damage and transmission risk.
- What could go wrong
- This is an observational real-world study, not a randomized controlled trial, so results may be less definitive. The drug may not work for all patients or could have side effects not fully captured.
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
-
About 400 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2024
- Expected to finish
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Jun 2028
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
treatment-naive/treatment-experienced patients with chronic hepatitis B
- Ages
-
18 to 65 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: * (1) Aged 18 to 65 years (inclusive), regardless of gender; (2)Meet the diagnostic criteria for chronic hepatitis B (with documented HBsAg or HBV DNA positivity for more than 6 months, or confirmed by liver biopsy) and test positive for HBsAg, HBeAg, and anti-HBc simultaneously; (3)Fulfill the indications for antiviral therapy as per the "Guidelines for the Prevention and Treatment of Chronic Hepatitis B (2022 Edition)": ① Serum HBV DNA positive, with persistently abnormal ALT (\> ULN), and other causes ruled out; ② Serum HBV DNA positive individuals, regardless of ALT levels, are recommended for antiviral therapy if they meet any of the following criteria: I. Family history of hepatitis B-related cirrhosis or HCC; II. Age \>30 years; III. Non-invasive indicators or histologic examination suggesting significant liver inflammation (G≥2) or fibrosis (F≥2); IV. HBV-related extrahepatic manifestations (e.g., HBV-associated glomerulonephritis); ③ Clinically diagnosed compensated hepatitis B cirrhosis patients. (4)No restriction on treatment-naïve or treatment-experienced patients; (5)Agreement to use effective non-pharmacological contraceptive measures during the trial; (6)Agreement to participate in this clinical trial and voluntary signing of the informed consent form. Exclusion Criteria: * (1) Evidence suggestive of hepatocellular carcinoma (HCC) or serum alpha-fetoprotein (AFP) \>100 μg/L; (2)Presence of signs indicating significant hepatic decompensation, such as ascites, hepatic encephalopathy, or esophageal/gastric variceal bleeding; (3)Platelet count (PLT) \<30×10⁹/L, or hemoglobin (Hb) \<100 g/L, or albumin (ALB) \<30 g/L, or total bilirubin (TBIL) \>2.5×upper limit of normal (ULN); (4)Co-infection with hepatitis C or D virus, HIV, autoimmune hepatitis, or other causes of active hepatitis; (5)History of allergy to nucleos(t)ide analogues, or documented resistance to nucleos(t)ide analogues; (6)Severe cardiopulmonary dysfunction, advanced malignancy, central nervous system disorders (e.g., history of epilepsy), or other systemic diseases; (7)Neurological or psychiatric disorders that preclude cooperation or willingness to cooperate; (8)Pregnancy, lactation, or planning pregnancy in the near future; (9)Inability or unlikelihood to complete the 2-year follow-up after enrollment; (10)Use of strong or moderate CYP3A4 or P-gp inhibitors (e.g., ketoconazole, erythromycin, itraconazole) or strong CYP3A4 or P-gp inducers (e.g., rifampicin, phenytoin sodium) within the past 3 months or currently taking such medications; (11)Other reasons deemed by the investigator as unsuitable for participation in the study.
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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.
Contacts and locations
Locations
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The First Affiliated Hospital of Zhengzhou University
Zhengzhou, Henan, 450000, China
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Other studies related to the condition(s) this trial covers.
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