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NCT06058416

Immunogenicity and Safety of Hepatitis A Among People Aged 18-50 Years Old

Active, enrolled Phase 4 Last updated 21 August 2024
What this trial tests

Phase 4 trial testing Healive (hepatitis A vacine(human diploid cell), inactivated) in Hepatitis A in 1,092 participants. Participants enrolled and being followed up; not accepting new ones.

Timeline
24 October 2023
Primary endpoint
17 March 2028
31 December 2029

Quick facts

Lead sponsorSinovac Biotech Co., Ltd
PhasePhase 4
StatusActive, enrolled
Study typeINTERVENTIONAL
Allocationrandomized
Designsequential
Maskingnone
Primary purposeprevention
Enrollment1,092
Start date24 October 2023
Primary completion17 March 2028
Estimated completion31 December 2029
Sites1 location across China

Drugs / interventions tested

Conditions studied

Sponsor

Sinovac Biotech Co., Ltd — full company profile →

Who can join

Adults 18 to 50, any sex, with Hepatitis A. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

This study is conducted among people aged 18-50 in Dandong City, an area with a high incidence of hepatitis A in recent years. 1000 qualified pariticipants with signed informed consent will be screened for anti-HAV antibodies by collecting blood sample of 3ml. One dose of hepatitis A vaccine will be administrated to all the pariticipants. Negative anti-HAV antibodies-negative subjects will recieve the second dose of hepatitis A vaccination, and 400 of them will be randomly selected and assigned to 4 groups with different interval of vaccination(6 month, 18 months, 36 months and 60 months). Blood samples will be collected before vaccination of each dose and on 28 days after each dose of vaccination to anti-HAV antibody test. Safety data will be collected within 28 days after each vaccination with a smartphone mini-program.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

  1. Immunogenicity and safety of hepatitis A vaccine at different vaccination intervals among adults aged 18 years and above: Interim results.
    Chang L, Li Z, Liu Y, Fei S, et al · · 2025 · PMID 40391688 · DOI 10.1080/21645515.2025.2506294

Verify or expand the search:

Other recruiting trials for Hepatitis A

Currently open trials in the same condition.

Other Sinovac Biotech Co., Ltd trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

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