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Phase Ⅳ Clinical Trial of Recombinant Hepatitis E Vaccine(Hecolin®)

Phase 4
Completed
Conditions
Hepatitis E
Interventions
Biological: Recombinant (E. Coli) Hepatitis E Vaccine
Registration Number
NCT02189603
Lead Sponsor
Jun Zhang
Brief Summary

The purpose of this study is to determine the safety and immunogenicity of the recombinant hepatitis E vaccine in people older than 65 years, and evaluate the efficacy of hepatitis E vaccine in this population.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
601
Inclusion Criteria
  • Healthy people aged over 16 years old at the time of the first vaccination, normal intelligence and agree to sign the informed consent form.
  • Healthy subjects as established by medical history and history-oriented clinical examination before entering into the study.
  • Subjects will reside in the study region in the next 7 months.
  • Free of history of hepatitis E.
  • Can comply with the request of study.
  • Axillary temperature is below 37 degree centigrade.
Exclusion Criteria

For dose 1:

  • receiving other vaccine or immunoglobulin within two weeks;
  • Having serious allergic history to vaccine and medicine
  • Eclampsia, epilepsy, encephalopathy and history of mental disease or family;
  • Thrombocytopenia or other disturbance of blood coagulation which would lead to muscle injection taboo;
  • Fixed or suspected deficiency of immunologic function, containing immunosuppressant treatment, genetic defect, HIV or other factors;
  • Congenital malformation, eccyliosis or severe chronic disease;
  • Fixed or suspected other disease including fever, active infection, liver and kidney disease, angiocardiopathy, malignancy, acute and chronic disease;
  • joining other clinical study undergoing;
  • women pregnant or in lactation.

For dose 2 or 3:

  • Severe allergy for dose 1 or 2;
  • Severe adverse reaction associated with last vaccination;
  • New occurrence of symptoms meet dose 1 exclusion criteria after the first dose.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Senior group(over 65 years old)-HERecombinant (E. Coli) Hepatitis E VaccineAnti-HEV IgG seronegative participants over 65 years old were enrolled. Hepatitis E vaccine, containing 30mcg of HEV239 recombinant antigen adsorbed to alum adjuvant suspended in 0.5ml phosphate buffer, was given at 0, 1, 6m for three doses.
Younger groups(16-65 years old)Recombinant (E. Coli) Hepatitis E VaccineParticipants aged 16-65 years old were enrolled. Hepatitis E vaccine, containing 30mcg of HEV239 recombinant antigen adsorbed to alum adjuvant suspended in 0.5ml phosphate buffer, was given at 0, 1, 6m for three doses.
Primary Outcome Measures
NameTimeMethod
Number of Participants with Serious and Non-Serious Adverse EventsFrom month 0-7

Any adverse events reported within one month post each vaccination would be recorded, any serious adverse events reported throughout the study would be recorded.

Secondary Outcome Measures
NameTimeMethod
anti-HEV IgG seropositive rateat month 7
GMT of anti-HEV IgG7 month after first vaccination

Serum sample would be collected at month 7, and geometric mean titer of anti-HEV IgG would be tested

Trial Locations

Locations (1)

Center for disease control and prevention in Xiamen haicang district

🇨🇳

Xiamen, Fujian, China

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