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Hepatitis B Vaccine in Patients With Inflammatory Bowel Disease

Not Applicable
Completed
Conditions
Inflammatory Bowel Disease
Interventions
Biological: Sci-B-Vac
Biological: ENGERIX-B (HBV Vaccine)
Registration Number
NCT01531075
Lead Sponsor
Soroka University Medical Center
Brief Summary

The objective is to assess the efficacy of Hepatitis B Virus vaccination in a population of IBD patients treated with immunosuppressive medications.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
91
Inclusion Criteria
  • Male/female ≥ 18 years of age
  • Evidence of IBD as diagnosed by clinical, laboratory imaging and endoscopic criteria.
  • Treated with at least one immunosuppressive medication at the time of study initiation
  • Provided written informed consent.
Exclusion Criteria
  • Pregnant women
  • Diagnosis of chronic viral hepatitis B
  • Any major acute medical event in the 30 days prior to recruitment that necessitated hospitalization ( acute myocardial infarction, CVA, pulmonary emboli, sepsis, major trauma)
  • Any other chronic inflammatory condition not related to IBD ( connective tissue disease, Chronic liver disease, COPD, poorly controlled diabetes mellitus)
  • Active hematologic or oncologic diseases

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Sci-B-VacSci-B-Vac-
ENGERIX-BENGERIX-B (HBV Vaccine)-
Primary Outcome Measures
NameTimeMethod
protective level of anti HBs antibodies1 month after the last does of vaccine

Antibody titer \>10 IU/ml 30 days following last vaccine dose will be considered protective.

In the work done by Altunoz et al., titer rate below 10 IU was observed in 40% of the patients, while 40% of the patients achieved a rate of above 100 IU. Therefore, we can estimate that the geometric mean of distribution is approx. 50 IU. A sample size of 37 patients in each group achieves a power of 80% to detect a ratio above 1.37 between the two vaccinated groups.

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

Soroka UMC

🇮🇱

Beer- Sheva, Israel

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