NCT00441012

Brief Summary

To determine if there is an improvement in the immune response to HBsAg (hepatitis B virus) in healthy infants using a modified process in a combination Haemophilus Influenzae, type b/Hepatitis B vaccine and a currently licensed Haemophilus Influenzae, type b/Hepatitis B vaccine

Trial Health

100
On Track

Trial Health Score

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

Enrollment
546

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Dec 2006

Status
completed

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

December 1, 2006

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

February 26, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 27, 2007

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2008

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

July 10, 2009

Completed
Last Updated

March 19, 2015

Status Verified

March 1, 2015

Enrollment Period

1.5 years

First QC Date

February 26, 2007

Results QC Date

May 11, 2009

Last Update Submit

March 2, 2015

Conditions

Keywords

Haemophilus Influenza, type b and Hepatitis B

Outcome Measures

Primary Outcomes (2)

  • The Number of Anti-HBs Seroprotected Participants 1 Month After the Third Dose.

    The number of participants as measured by the seroprotection rate (anti-hepatitis B surface antibodies greater than or equal to 10 mIU/mL). Anti-HBs (Antibodies against hepatitis B surface antigen) titers were measured from blood samples taken at Month 11 (1 month after the third dose)

    11 months (1 month after the third dose)

  • The Anti-HBs GMT (Geometric Mean Titer) 1 Month After the Third Dose.

    Geometric Mean Titer (GMT) - This is an Antibody titer that is measured using a laboratory test to detect the presence and amount of antibodies in a person's blood. Anti-HBs (Antibodies against hepatitis B surface antigen) and Geometric Mean Titers were measured from blood samples taken at Month 11 (1 month after the third dose).

    11 months (1 month after the third dose)

Secondary Outcomes (3)

  • The Total Number of Participants With Serious Vaccine-Related Clinical Adverse Experiences

    0-11 months (recorded from first dose until the participant completes or discontinues)

  • The Number of Anti-PRP Seroprotected Participants 1 Month After the Third Dose.

    11 months (1 month after the third dose)

  • The Anti-PRP GMT (Geometric Mean Titer) 1 Month After the Third Dose.

    11 months (1 month after the third dose)

Study Arms (2)

1

EXPERIMENTAL

Modified process Hib/Hep B vaccine

Biological: Comparator: Modified Process Vaccine

2

ACTIVE COMPARATOR

COMVAX™

Biological: Comparator: COMVAX™

Interventions

Modified process vaccine HBsAg 5 ug/0.5 mL and PRP \[OMPC\] 7.5 ug/0.5 mL in a 3-dose regimen at 2, 4 \& 12 months of age. Duration of treatment is 11 months.

1

COMVAX™ HBsAg 5 ug/0.5 mL and PRP \[OMPC\] 7.5 ug/0.5 mL in a 3-dose regimen at 2, 4, and 12 months of age. Duration of treatment is 11 months.

2

Eligibility Criteria

Age40 Days - 80 Days
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Healthy 2-month-old full term infants born to non-HBs Ag (hepatitis B virus) carrier mothers

You may not qualify if:

  • Birth mother known to be a carrier of hepatitis B virus (HBsAg+) or known carriers ever living in close contact with the subject
  • History of previous hepatitis B infection; history of vaccination with any hepatitis B vaccine
  • Recent (\<72 hours) history of febrile illness (rectal temperature \>=38.1°C/\>=100.5°F)
  • Known or suspected hypersensitivity to any component of RECOMBIVAXHB™ or COMVAX™ (e.g., aluminum, yeast)
  • Recent administration (w/i 3 months prior to study start) of hepatitis B immune globulin (HBIg), serum immune globulin, or any other blood-derived product
  • Receipt of investigational drugs or investigational vaccines within 3 months prior to study start or if planned within the study period;
  • Known or suspected impairment of immunologic function or recent use (within 3 months prior to study start) of immunomodulatory medications (does not include topical and inhaled steroids);
  • Any condition that, in the opinion of the investigator, might interfere with the evaluation of study objectives; or inability to comply with the study schedule and/or inability to attend all required study visits

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Lee AW, Vesikari T, Gilbert CL, Klopfer SO, Schodel FP, Bhuyan PK. Immunogenicity and safety of a Haemophilus influenzae B (Hib)-hepatitis B vaccine with a modified process hepatitis B component administered with concomitant pneumococcal conjugate vaccine to infants. Vaccine. 2011 Oct 19;29(45):7942-8. doi: 10.1016/j.vaccine.2011.08.071. Epub 2011 Aug 27.

MeSH Terms

Conditions

Haemophilus InfectionsHepatitis B

Condition Hierarchy (Ancestors)

Pasteurellaceae InfectionsGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfectionsBlood-Borne InfectionsCommunicable DiseasesHepadnaviridae InfectionsDNA Virus InfectionsVirus DiseasesHepatitis, Viral, HumanHepatitisLiver DiseasesDigestive System Diseases

Results Point of Contact

Title
Senior Vice President, Global Clinical Development
Organization
Merck Sharp & Dohme Corp.

Study Officials

  • Medical Monitor

    Merck Sharp & Dohme LLC

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 26, 2007

First Posted

February 27, 2007

Study Start

December 1, 2006

Primary Completion

June 1, 2008

Study Completion

June 1, 2008

Last Updated

March 19, 2015

Results First Posted

July 10, 2009

Record last verified: 2015-03