Nationwide survey of hepatitis D virus prevalence in Thailand

Prevalence, Risk Factor and Clinical Significance of Hepatitis D Virus Infection Among Targeted High Risk Population in Thailand: Nationwide Survey 2022-2024

The HIV Netherlands Australia Thailand Research Collaboration · NCT05350865

This study is trying to find out how common hepatitis D is among people in Thailand who inject drugs and are also living with HIV or hepatitis B.

Quick facts

Study typeObservational
Enrollment3152 (estimated)
Ages18 Years and up
SexAll
SponsorThe HIV Netherlands Australia Thailand Research Collaboration (other)
Locations4 sites (Bangkok, Bangkok and 3 other locations)
Trial IDNCT05350865 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the prevalence and predictors of hepatitis D virus (HDV) among people who inject drugs (PWID) in Thailand, particularly those co-infected with HIV and HBV. The study will gather data on the burden of HDV in this population, which is currently under-researched. Collaborating with various Thai health organizations, the findings will help inform guidelines for HDV screening and treatment, addressing a significant unmet need in public health. The study will include participants aged 18 and older who are chronically infected with HBV.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals aged 18 and older who are chronically infected with HBV.

Not a fit: Patients who do not have chronic HBV infection will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved screening and treatment strategies for HDV among vulnerable populations in Thailand.

How similar studies have performed: While there is limited data on HDV in Thailand, similar studies in other regions have successfully highlighted the importance of HDV screening in HBV patients.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Male or female, aged 18 years and older
2. Chronically-infected with HBV, as defined by:

   Positive Hepatitis B surface antigen HBsAg) or HBV DNA result with a subsequent positive HBsAg or HBV DNA result at least 6 months after first positive result
3. Provide signed and dated informed consent form.

Exclusion Criteria:

Non chronic HBV

Where this trial is running

Bangkok, Bangkok and 3 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: HDV, HBV, cirrhosis, Thailand

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.