N/A
Completed N=127
The Hepatitis B Vaccine Booster Response Among the Youth Who Had Completed Neonatal Hepatitis B Vaccines
Source: ClinicalTrials.gov NCT00792610 ↗Enrolled (actual)
127
Serious AEs
0.0%
Results posted
Sep 2009
Primary outcomePrimary: Hepatitis B Surface Antibody Seroprotective Rate(Seroprotective: for Those Who Had Anti-HBs(Surface Antibody Against Hepatitis B) Titer Higher Than 10 mIU/mL) — 26; 96; 120; 126 participants — p=<0.05
Summary
At the time of the present study, the necessity for booster vaccinations for the prevention of hepatitis B(HB) 15 years post-vaccination in the group of young adults who have become seronegative for HB markers after complete neonatal HB vaccination was in question. A booster vaccination strategy may lead to a significant economic impact on national health care resources, and the costs/benefits must therefore be carefully evaluated. Unfortunately, the data to support such analyses are lacking. Because an increased risk of HB infection is anticipated when adolescents enter into young adulthood through becoming sexual active, breakthrough infections such as fulminant HB might be the main concern instead of the risk of chronic HB carriage. To address this issue, this study aimed to measure the booster responses after HB vaccination in seronegative young adults who had completed neonatal HB vaccines in Taiwan before.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Hepatitis B Surface Antibody Seroprotective Rate(Seroprotective: for Those Who Had Anti-HBs(Surface Antibody Against Hepatitis B) Titer Higher Than 10 mIU/mL) |
26; 96; 120; 126 | <0.05 sig |
Eligibility Criteria
Inclusion Criteria
- aged 18-23 years
- the youth born after July 1984 who have received a hepatitis B virus markers checkup within 2 years including HBsAg, core antibody against hepatitis B(anti-HBc), and surface antibody against hepatitis B (anti-HBs) and the results are all negative for these 3 viral markers.
- Participants should agree to sign inform consent. For younger than 20 years old subjects, one of their parents also help the participate review and sign the inform consent.
- Participants are willing to receive 3 doses of Hepatitis B vaccines without payment.
- General condition is in good health judged by the doctor
Exclusion Criteria
- Allergy to Hepatitis B vaccines or yeast
- pregnancy
Data sourced from ClinicalTrials.gov (NCT00792610). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.