Safety and Immunogenicity of Tdap Vaccine Compared to DTaP Vaccine in Children 4 to 6 Years of Age

NCT ID: NCT00467519

Last Updated: 2014-02-07

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

1045 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-04-30

Study Completion Date

2009-12-31

Brief Summary

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Currently, there is no 5-component acellular pertussis vaccine licensed for the 5th dose in US children aged 4 to 6 years.This study is aimed at providing evidence of sero-protection, booster response and safety of this formulation as a 5th dose.

Primary Objective:

\- To compare the immune responses of Tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap) Vaccine to Diphtheria, tetanus and acellular pertussis (DTaP) vaccine (all antigens) when each is administered as a 5th dose and given concurrently, to children aged 4 to 6 years.

Secondary/Observational Objectives:

* To compare the immune responses for pertussis antigens of Tdap Vaccine to DTaP vaccine (for pertussis antigens) when each is administered as a 5th dose and given concurrently, to children aged 4 to 6 years.
* To present the long-term immunogenicity at 1-, 3-, and 5-years post-vaccination after each long-term follow-up.
* To describe the safety profile following vaccine administration.

Detailed Description

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Conditions

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Tetanus Diphtheria Pertussis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Group 1

DAPTACEL primed participants

Group Type EXPERIMENTAL

Tdap (Tetanus Toxoid Reduced Diphtheria Toxoid/Acellular Pertussis)

Intervention Type BIOLOGICAL

0.5 mL, IM

Group 2

Pentacel primed participants

Group Type EXPERIMENTAL

DTaP (Diphtheria & Tetanus Toxoids & Acellular Pertussis Adsorbed)

Intervention Type BIOLOGICAL

0.5 mL, IM

Interventions

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Tdap (Tetanus Toxoid Reduced Diphtheria Toxoid/Acellular Pertussis)

0.5 mL, IM

Intervention Type BIOLOGICAL

DTaP (Diphtheria & Tetanus Toxoids & Acellular Pertussis Adsorbed)

0.5 mL, IM

Intervention Type BIOLOGICAL

Other Intervention Names

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Adacel DAPTACEL in the US TRIPACEL in Canada

Eligibility Criteria

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Inclusion Criteria

* Healthy, as determined by medical history and physical examination.
* Aged 4 to 6 (\< 7) years at the time of study vaccination on Day 0.
* Signed and dated informed consent form that has been approved by the Institutional Review Board (IRB) by the parent or legally authorized representative.
* Signed and dated informed assent form from the subject if required by the IRB.
* Able to attend scheduled visits at Visit 1 and Visit 2 and able to comply with all trial procedures. Subjects will be invited to participate in the long-term immunogenicity follow-up study but a commitment to participate in the long-term is not required as an inclusion criterion.
* Documented vaccination history of 4 previous doses of DAPTACEL according to the recommended national immunization schedule for Diphtheria, tetanus and acellular pertussis (DTaP).

Exclusion Criteria

* Participation in another clinical trial in the 4 weeks preceding the trial vaccination.
* Planned participation in another clinical trial during the original trial period.
* Congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroids therapy.
* Systemic hypersensitivity to any of the vaccine components or history of life-threatening reaction to the trial vaccine or a vaccine containing the same substances.
* Chronic illness at a stage that could interfere with trial conduct or completion.
* Blood or blood-derived products received in the past 3 months.
* Receipt of any other vaccine within 30 days prior to study vaccination, or planning to receive another vaccine within 30 days before the Visit 2 blood draw (with the exception of the annual influenza vaccine).
* History of diphtheria, tetanus or pertussis infection (confirmed either serologically or microbiologically).
* Thrombocytopenia or bleeding disorder contraindicating intra muscular vaccination.
Minimum Eligible Age

4 Years

Maximum Eligible Age

6 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Sanofi Pasteur, a Sanofi Company

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Medical Director

Role: STUDY_DIRECTOR

Sanofi Pasteur Inc

Locations

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Birmingham, Alabama, United States

Site Status

Birmingham, Alabama, United States

Site Status

Fayetteville, Arkansas, United States

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Jonesboro, Arkansas, United States

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Little Rock, Arkansas, United States

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Fountain Valley, California, United States

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Huntington Beach, California, United States

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Oakland, California, United States

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Roseville, California, United States

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Sacramento, California, United States

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Norwich, Connecticut, United States

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Marietta, Georgia, United States

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Woodstock, Georgia, United States

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Bardstown, Kentucky, United States

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Crestview Hills, Kentucky, United States

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Louisville, Kentucky, United States

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Bossier City, Louisiana, United States

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Frederick, Maryland, United States

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Bellevue, Nebraska, United States

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Omaha, Nebraska, United States

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Omaha, Nebraska, United States

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Omaha, Nebraska, United States

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Rochester, New York, United States

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Fargo, North Dakota, United States

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Cleveland, Ohio, United States

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Gresham, Oregon, United States

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Erie, Pennsylvania, United States

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Norristown, Pennsylvania, United States

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Pittsburgh, Pennsylvania, United States

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Pittsburgh, Pennsylvania, United States

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Rydal, Pennsylvania, United States

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Uniontown, Pennsylvania, United States

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Kingsport, Tennessee, United States

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Tullahoma, Tennessee, United States

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San Antonio, Texas, United States

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Layton, Utah, United States

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Springville, Utah, United States

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Chesapeake, Virginia, United States

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Midlothian, Virginia, United States

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Spokane, Washington, United States

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Spokane, Washington, United States

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La Crosse, Wisconsin, United States

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Edmonton, Alberta, Canada

Site Status

Countries

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United States Canada

Related Links

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Other Identifiers

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TD517

Identifier Type: -

Identifier Source: org_study_id

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