Studies hepatitis D infection in people with chronic hepatitis B
Looks at how common hepatitis D is in people with chronic hepatitis B.
Key facts
- Who runs it
- Tam Anh Research Institute
- Where
- Hà Nội and Ho Chi Minh City, VietnamSee the 3 sites
- Trial code
- Registry title
- Hepatitis Delta Virus Infection: Cross-sectional Study in Patients With Chronic Hepatitis B Virus Infection
- Status
- Recruiting
- People taking part
- 2,452 people, planned
- Started
- 1 Nov 2024
- Expected to end
- 30 Dec 2026
- Type of study
- Observational
- Record updated
- 2 October 2026
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for people aged 16 or older who have long-lasting (chronic) hepatitis B. It studies how common hepatitis D infection is among them.
- Age
- 16 years or older
- Sex
- All sexes can join.
- Disease stage
- Chronic hepatitis B: HBsAg positive for six months or more, or HBsAg positive with total HBcAb positive and HBcAb-immunoglobulin M negative. Patients at Bach Mai Hospital must have been diagnosed with hepatocellular carcinoma and cirrhosis.
- Biomarker or test result
- HBsAg positive (chronic hepatitis B).
Main reasons for not taking part
- People who do not agree to take part
- People who refuse to sign the written informed consent
The registry criteria, word for word
Show all 3 criteriaShow less
Who can take part
- Patients ≥ 16 years old undergo testing at the Testing Center of Tam Anh General Hospital or Tam Anh TP. Ho Chi Minh General Hospital, with chronic hepatitis B HBsAg (+) standards for six months or over or HBsAg (+) combined with HBcAb total (+) and HBcAb-immunoglobulin M (-)
- Patients ≥ 16 years old with chronic hepatitis B come to be examined or are inpatients at the Gastroenterology - Hepatobiliary Center of Bach Mai Hospital, diagnosed with hepatocellular carcinoma, and cirrhosis
Who cannot take part
- Patients do not agree to participate in the study or refuse to sign a written informed consent
Where in Vietnam
- Bach Mai General HospitalHà Nội, VietnamContact: Long Công Nguyen, Associate ProfessorTaking people
- Tam Anh General HospitalHà Nội, VietnamContact: Khanh Truong Vu, MD, PhDTaking people
- Tam Anh TP. Ho Chi Minh General HospitalHo Chi Minh City, VietnamContact: Tran Quang Quang, Associate ProfessorTaking people
About the trial
What the trial wants to find out
The goal of this observational study is to determine the prevalence of hepatitis D virus (HDV) and the distribution of the HDV genotype in patients with chronic hepatitis B infection. It will also identify factors related to hepatitis D virus infection, such as characteristics of the study sample, vaccination history, drug use affecting hepatitis, family factors, environment, and lifestyle.
Read full original descriptionShow less
This study will be conducted at Tam Anh General Hospital, Bach Mai Hospital and Tam Anh TP. Ho Chi Minh General Hospital.
Participants will be interviewed directly through a questionnaire to collect some information related to epidemiological risk factors. A blood sample will also be collected.
The group in the trial
- Patients with chronic hepatitis B virus infection
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Hepatitis Delta Virus Infection: Cross-sectional Study in Patients With Chronic Hepatitis B Virus Infection
- Plain-language title
- Studies hepatitis D infection in people with chronic hepatitis BGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 12 November 2026.
- Record updated
- 2 October 2026