Long-term Effectiveness of a Recombinant Hepatitis E Vaccine

NCT ID: NCT05976594

Last Updated: 2023-08-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

2900 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-08-12

Study Completion Date

2025-07-01

Brief Summary

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This test-negative study is designed to evaluate the long-term effectiveness of hepatitis E vaccine (Hecolin®) and to explore the prevalence of rat hepatitis E in Dongtai City.

Detailed Description

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In this negative test study, residual clinical serum will be collected from 13 hospitals in Dongtai, if it was from patients born between 1941-1991 from 11 towns in Dongtai, who tested positive for ALT levels higher than 2.5 times the upper limit of normal (ULN). Detection of HEV IgM, IgG, antigen, RNA will be performed to diagnose hepatitis E (HE) in each individual. In addition, HE vaccination history will be collect. All the information above will be used to evaluate the long-term effectiveness of HE vaccine. Based on the study design, virological and serological detection (IgM, IgG, antigen, and RNA) of hepatitis E virus species C (HEV-C) will be performed to analyze the prevalence of rat hepatitis E infection in Dongtai.

Conditions

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Hepatitis E

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

RETROSPECTIVE

Study Groups

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HE group

Subjects who has been diagnosed as HE.

serology and virology detection of hepatitis E virus

Intervention Type DIAGNOSTIC_TEST

Serum will be tested for HEV serology and virology, including HEV-IgM, HEV-IgG, HEV-antigen, and HEV-RNA for HEV species A (HEV-A) and HEV species C (HEV-C),and further HEV genotyping for those positive for HEV-RNA.

Control group

Subjects who didn't meet the diagnosis criteria of HE.

serology and virology detection of hepatitis E virus

Intervention Type DIAGNOSTIC_TEST

Serum will be tested for HEV serology and virology, including HEV-IgM, HEV-IgG, HEV-antigen, and HEV-RNA for HEV species A (HEV-A) and HEV species C (HEV-C),and further HEV genotyping for those positive for HEV-RNA.

Interventions

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serology and virology detection of hepatitis E virus

Serum will be tested for HEV serology and virology, including HEV-IgM, HEV-IgG, HEV-antigen, and HEV-RNA for HEV species A (HEV-A) and HEV species C (HEV-C),and further HEV genotyping for those positive for HEV-RNA.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

1. From 11 townships(Anfeng、Fuan、Tangyang、Hougang、Liangduo、Qingdong、Shiyan、Shenzao、Wulie、Xuhe、Xinjie)
2. ALT ≥ 2.5 ULN
3. Born between 1941 and 1991
Minimum Eligible Age

32 Years

Maximum Eligible Age

82 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Dongtai Center for Disease Control and Prevention

UNKNOWN

Sponsor Role collaborator

Dongtai Hospital of Traditional Chinese Medicine

UNKNOWN

Sponsor Role collaborator

Dongtai People's Hospital

UNKNOWN

Sponsor Role collaborator

Xiamen University

OTHER

Sponsor Role lead

Responsible Party

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Jun Zhang

professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Zhang Jun, M.D.

Role: STUDY_DIRECTOR

National Institute of Diagnostics and Vaccine Development in infectious disease, Xiamen University

Locations

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Dongtai Center for Disease Control and Prevention

Dongtai, Jiangsu, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Zhang Jun, PhD

Role: CONTACT

0592-2184110

Facility Contacts

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Yang Changlin

Role: primary

0515-85212669

References

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Zhu FC, Zhang J, Zhang XF, Zhou C, Wang ZZ, Huang SJ, Wang H, Yang CL, Jiang HM, Cai JP, Wang YJ, Ai X, Hu YM, Tang Q, Yao X, Yan Q, Xian YL, Wu T, Li YM, Miao J, Ng MH, Shih JW, Xia NS. Efficacy and safety of a recombinant hepatitis E vaccine in healthy adults: a large-scale, randomised, double-blind placebo-controlled, phase 3 trial. Lancet. 2010 Sep 11;376(9744):895-902. doi: 10.1016/S0140-6736(10)61030-6. Epub 2010 Aug 20.

Reference Type BACKGROUND
PMID: 20728932 (View on PubMed)

Zhang J, Zhang XF, Huang SJ, Wu T, Hu YM, Wang ZZ, Wang H, Jiang HM, Wang YJ, Yan Q, Guo M, Liu XH, Li JX, Yang CL, Tang Q, Jiang RJ, Pan HR, Li YM, Shih JW, Ng MH, Zhu FC, Xia NS. Long-term efficacy of a hepatitis E vaccine. N Engl J Med. 2015 Mar 5;372(10):914-22. doi: 10.1056/NEJMoa1406011.

Reference Type BACKGROUND
PMID: 25738667 (View on PubMed)

Other Identifiers

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PRO-HE-004-2

Identifier Type: -

Identifier Source: org_study_id

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