NCT01341275

Brief Summary

The aims of this study are to determine:

  • have blood drawn for baseline serologies
  • receive the hepatitis B booster dose (randomly determined to be either a 10 ug or 20 ug dose)
  • have blood drawn again 14 days later to determine if the booster dose has engendered an anamnestic response (a response attributed to prior immunity rather than a new response to the vaccine) The primary hypothesis is that the majority of young people will exhibit immune memory for hepatitis B in response to a booster dose of vaccine.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
400

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Apr 2010

Geographic Reach
1 country

2 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2010

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

April 22, 2011

Completed
3 days until next milestone

First Posted

Study publicly available on registry

April 25, 2011

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2011

Completed
Last Updated

April 25, 2011

Status Verified

April 1, 2011

Enrollment Period

1.6 years

First QC Date

April 22, 2011

Last Update Submit

April 22, 2011

Conditions

Keywords

hepatitis B vaccineduration of protectionadolescent immunizationanamnestic responsebooster doseImmunity to hepatitis B as measured by anti-HBSAg titers

Outcome Measures

Primary Outcomes (1)

  • anti-HBSAg titers

    13-15 days after enrollment and booster dose

Study Arms (4)

birth, lower dose booster

EXPERIMENTAL

Adolescents who received their first dose of hepatitis B vaccine at or before day 7 of life who received a 10 ug dose of hepatitis B vaccine as a booster

Biological: hepatitis B vaccine

birth, higher dose booster

EXPERIMENTAL

Adolescents who received their first dose of hepatitis B vaccine at or before day 7 of life who received a 20 ug dose of hepatitis B vaccine as a booster

Biological: hepatitis B vaccine

4 weeks, lower dose booster

EXPERIMENTAL

Adolescents who received their first dose of hepatitis B vaccine at or after 4 weeks of life who received a 10 ug dose of hepatitis B vaccine as a booster

Biological: hepatitis B vaccine

4 weeks, higher dose booster

EXPERIMENTAL

Adolescents who received their first dose of hepatitis B vaccine at or after 4 weeks of life who received a 20 ug dose of hepatitis B vaccine as a booster

Biological: hepatitis B vaccine

Interventions

10 ug dose, one-time administration

Also known as: EngerixB
4 weeks, lower dose boosterbirth, lower dose booster

Eligibility Criteria

Age16 Years - 19 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • years of age
  • born in the United States
  • received the full hepatitis B vaccination series by 12 months of age
  • received the third dose of hepatitis B vaccine within 10 months of the first dose

You may not qualify if:

  • a history of hepatitis B disease
  • being born to a mother with hepatitis B at the time of the participant's birth
  • having received hepatitis B immune globulin as an infant
  • immunosuppression including HIV or chronic/current steroid use (use \> 10 days duration within the 3 months of enrollment)
  • renal insufficiency or dialysis
  • pregnancy (due to theoretical risk of different immune response among pregnant females)
  • ever receiving a booster (fourth) dose of hepatitis B vaccine
  • history of allergy to the hepatitis B vaccine
  • receipt of blood products or IgG within 3 months of enrollment
  • having received another vaccine within 2 weeks of enrollment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Texas Children's Hospital

Houston, Texas, 77030, United States

RECRUITING

Texas Children's Pediatric Associates

Houston, Texas, 77030, United States

RECRUITING

Related Publications (2)

  • Spradling PR, Kamili S, Xing J, Drobeniuc J, Hu DJ, Middleman AB. Response to challenge dose among young adults vaccinated for hepatitis B as infants: importance of detectable residual antibody to hepatitis B surface antigen. Infect Control Hosp Epidemiol. 2015 May;36(5):529-33. doi: 10.1017/ice.2015.6. Epub 2015 Feb 3.

  • Middleman AB, Baker CJ, Kozinetz CA, Kamili S, Nguyen C, Hu DJ, Spradling PR. Duration of protection after infant hepatitis B vaccination series. Pediatrics. 2014 Jun;133(6):e1500-7. doi: 10.1542/peds.2013-2940. Epub 2014 May 19.

MeSH Terms

Conditions

Hepatitis B

Interventions

Hepatitis B Vaccines

Condition Hierarchy (Ancestors)

Blood-Borne InfectionsCommunicable DiseasesInfectionsHepadnaviridae InfectionsDNA Virus InfectionsVirus DiseasesHepatitis, Viral, HumanHepatitisLiver DiseasesDigestive System Diseases

Intervention Hierarchy (Ancestors)

Viral Hepatitis VaccinesViral VaccinesVaccinesBiological ProductsComplex Mixtures

Central Study Contacts

Amy B Middleman, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

April 22, 2011

First Posted

April 25, 2011

Study Start

April 1, 2010

Primary Completion

November 1, 2011

Study Completion

November 1, 2011

Last Updated

April 25, 2011

Record last verified: 2011-04

Locations