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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01353989
Other study ID # Hepatitis A vaccination
Secondary ID
Status Completed
Phase N/A
First received June 21, 2010
Last updated June 27, 2016
Start date July 2010
Est. completion date July 2015

Study information

Verified date June 2016
Source Rijnstate Hospital
Contact n/a
Is FDA regulated No
Health authority Netherlands: The Central Committee on Research Involving Human Subjects (CCMO)
Study type Observational

Clinical Trial Summary

A lot of elderly people travel to hepatitis A endemic areas. The prevalence of hepatitis A IgG positivity is declining in the Netherlands, also in the elderly. Studies show that people above 40 years of age have a slower immune response to hepatitis A vaccination. However, a lot of travelers seek pre-travel advice only shortly before their journey. More information about the time to adequate antibody response after hepatitis A vaccination is required to provide good protection during travelling. Alternative protection with immunoglobulins are available.

Study design: Observational, longitudinal pilot study Study population: 20 adults over 60 years of age with a negative hepatitis A IgG, (with a estimated 50% positivity for hepatitis A IgG in this age Group, 40 patients in this age group) 20 adults 18-40 years of age as controls.

Intervention (if applicable): When hepatitis A vaccination is indicated and informed consent is obtained, hepatitis A IgG wil be measured at day 0, 7, 14, 21 en 28.

Main study parameters/endpoints: Time to protective hepatitis A IgG. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: hepatitis A vaccination will be given also outside this study. In the study 5 venous punctures of 7 ml of blood.


Recruitment information / eligibility

Status Completed
Enrollment 60
Est. completion date July 2015
Est. primary completion date July 2015
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years and older
Eligibility Exclusion Criteria:

- previous hep A vaccination

- known hepatitis A serology status

- immunodeficiency

Study Design

Observational Model: Cohort, Time Perspective: Prospective


Related Conditions & MeSH terms


Locations

Country Name City State
Netherlands Rijnstate Hospital Arnhem

Sponsors (1)

Lead Sponsor Collaborator
Rijnstate Hospital

Country where clinical trial is conducted

Netherlands, 

Outcome

Type Measure Description Time frame Safety issue
Primary How fast do patients> 60 year reach protective anti-HAV levels after vaccination? 0, 1,2,3,4 weeks No
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