HDV-Europe: Prevalence and Outcome of HDV in HIV/HBV Coinfection

Summary

The aim of this project is to set up a cross-sectional cohort study (France, Germany, The Netherlands, Poland, Spain, Switzerland, Italy, United Kingdom and Portugal) to assess the implementation of EACS guidelines for HDV-testing among PLWH with positive HbsAg and thereby evaluate the prevalence of HDV infection among HIV/HBV-coinfected in 2023, as well as corresponding risk factors. In addition to the testing itself, this study will also set up a cohort and databasee for future HDV studies among PLWH, including clinical, virological und laboratory parameters. 1. Analyze the rate of HDV-testing and evaluate the prevalence of HDV-infection by testing. 1. Evaluation of former screening of HDV by assessing existing data at study sites. 2. Determination of the HDV prevalence in European PLWH and HBV coinfection. 2. Setting up a database of all PLWH with HBV/HDV coinfection 1. Analysis of transmission risk factors for HDV coinfection 2. Asses the rate of HDV positive patients with ongoing HDV replication. 3. Define the liver disease state by APRI score, fibroscan, ultrasound and routine laboratory test results.

Eligibility

Inclusion Criteria:

* Documented HIV-infection confirmed by HIV-ELISA
* Chronic HBV Infection confirmed by d HBV HBsAg-testing (2 measurements of positive HBsAg \> 6month interval).

Exclusion Criteria:

* PLWH with a cleared HBV-infection (anti-HBc or anti-HBc and anti-HBs antibody positive will be considered as HIV-monoinfected persons.
* Individuals younger than 18 years of age
* Patients with any social condition or living circumstances which may interfere with the conduct of the study, as anticipated by the investigator, such as incapacity to adequately understand the study content or not willing to cooperate will be excluded from the study. -For France, patients without adequate social security will be excluded.

Conditions2

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