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Hepatitis A clinical trials and research
As of November 12, 2026, Find a Trial lists 2 Hepatitis A clinical trials that are recruiting, at sites in 2 countries (most in China (1), Cambodia (1)). 1 was first registered in the last 30 days. Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 2Clinical trials
- 1New in 30 days
- 2Countries
All recruiting trials (2)
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How long immunity lasts after inactivated hepatitis A vaccine
This study tests if immunity from the inactivated hepatitis A vaccine lasts up to 20 years in adults who completed the vaccination course in a prior trial.
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Community spread of multiple infectious diseases in Cambodia from a One Health perspective
This project will test how common and connected dengue, chikungunya, Zika, Japanese encephalitis, and West Nile infections are among people, animals, and the environment across Cambodia.
Related topics
Quick answers
How many Hepatitis A clinical trials are recruiting right now?
2, as of November 12, 2026. 1 of them was first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in China (1 trial), Cambodia (1 trial). Each study page lists its sites and which ones are recruiting.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.