Male-Dominant Hepatitis A Outbreak Observed among Non-HIV-Infected Persons in the Northern Part of Tokyo, Japan

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-jRCT1030220164

Enrollment

1000

Registered

2022-06-25

Start date

2018-11-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hepatitis A

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with acute hepatitis A who were admitted to Nihon University School of Medicine Itabashi Hospital, Itabashi-ku, Tokyo, Japan between 1 January 2018 and 30 April 2020 were analyzed in the present study. Acute hepatitis A was diagnosed by positive testing for immunoglobulin M (IgM) antibodies to HAV. All participants were negative for the IgM anti-hepatitis B virus (HBV) core antibody, the anti-hepatitis C virus (HCV) antibody, the IgA anti-hepatitis E virus (HEV) antibody, or for anti-HIV antibody. This retrospective study was approved by the ethics committee of Nihon University School of Medicine Itabashi Hospital (protocol no. RK-180911-12). Participation in the study was posted at the website of our institution. This study conformed to the ethical guidelines of the Declaration of Helsinki.

Exclusion criteria

Exclusion criteria: 1) Patients do not want to enter the present study. 2) Patients who investigators judged as illegeble patients.

Design outcomes

Primary

Measure	Time frame
ALT, Anti-HCV, HBsAg, Anti-HBs, Anti-HAV, Anti-HEV, HAV RNA	—

Contacts

Public ContactTatsuo Kanda

Nihon University Itabashi Hospital

kanda.tatsuo@nihon-u.ac.jp+81-3-3972-8111

Outcome results