NCT01689324

Brief Summary

This study is designed to assess the immunogenicity and safety of tetanus toxoid, reduced diphtheria toxoid and acellular pertussis vaccine (ADACEL®, Tdap vaccine) as a booster dose in adolescents in Japan. Primary Objective:

  • To assess the immunogenicity of Tdap (SP306) when administered as a single dose in Japanese adolescents Secondary Objective:
  • To assess the safety of Tdap vaccine when administered as a single dose in Japanese adolescents.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
43

participants targeted

Target at P50-P75 for phase_1

Timeline
Completed

Started Sep 2012

Shorter than P25 for phase_1

Geographic Reach
1 country

3 active sites

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2012

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

September 17, 2012

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 21, 2012

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2012

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2013

Completed
10 months until next milestone

Results Posted

Study results publicly available

February 21, 2014

Completed
Last Updated

February 21, 2014

Status Verified

February 1, 2014

Enrollment Period

2 months

First QC Date

September 17, 2012

Results QC Date

November 7, 2013

Last Update Submit

February 19, 2014

Conditions

Keywords

PertussisTetanusDiphtheriaAcellular pertussisADACEL®Tdap vaccine

Outcome Measures

Primary Outcomes (3)

  • Percentage of Participants With Seroprotection Against Diphtheria and Tetanus Antigens Following Vaccination With ADACEL®

    Seroprotection was defined as the percentage of participants with antibody concentration of ≥0.1 IU/mL, post-vaccination.

    Day 28 post-vaccination

  • Percentage of Participants With Booster Response to Diphtheria and Tetanus Antigens Following Vaccination With ADACEL®

    Diphtheria booster response was defined as a ≥ 4-fold rise in pre- to post-vaccination antitoxin concentration in a subject with a pre-vaccination antitoxin concentration ≤ 2.56 IU/mL; or a ≥ 2-fold rise in a subject with a pre-vaccination antitoxin concentration \> 2.56 IU/mL. Tetanus booster response was defined as a ≥ 4-fold rise in pre- to post- vaccination antitoxin concentration in a subject with a pre-vaccination antitoxin concentration ≤ 2.7 IU/mL; or a ≥ 2-fold rise in a subject with a pre-vaccination antitoxin concentration \> 2.7 IU/mL.

    Day 28 post-vaccination

  • Percentage of Participants With Booster Response to Pertussis Antigens, Pertussis Toxoid and Filamentous Hemagglutinin Following Vaccination With ADACEL®

    Booster responses were defined as: Pre-vaccination antibody concentrations less than the lower limit of quantitation (LLOQ) and a post-vaccination levels ≥ 4x LLOQ; or Pre-vaccination antibody concentrations ≥ LLOQ but \< 4x LLOQ, and a 4-fold rise (i.e., post-/pre-vaccination ≥ 4), or Pre-vaccination antibody concentrations ≥ 4x LLOQ and a 2-fold rise (i.e., post-/pre-vaccination ≥ 2)

    Day 28 post-vaccination

Other Outcomes (7)

  • Percentage of Participants With Seroprotection Against Diphtheria and Tetanus Antigens Pre-vaccination With ADACEL®

    Day 0 pre-vaccination

  • Percentage of Participants With Seroprotection Against Diphtheria and Tetanus Pre-vaccination and Post-vaccination With ADACEL®

    Day 0 (pre-vaccination) and day 28 post-vaccination

  • Percentage of Participants With Seroprotection Against Diphtheria and Tetanus Antigens Pre-vaccination and Post-vaccination With ADACEL®

    Day 0 (pre-vaccination) and day 28 post-vaccination

  • +4 more other outcomes

Study Arms (1)

Study Group

EXPERIMENTAL

Participants will receive a single booster dose of Tdap vaccine (ADACEL®) on Day 0.

Biological: (ADACEL®): Tetanus, Reduced Diphtheria Toxoid and Acellular Pertussis

Interventions

0.5 mL, Intramuscular

Also known as: ADACEL®, Tdap Vaccine
Study Group

Eligibility Criteria

Age11 Years - 12 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Informed consent form and assent form signed and dated by the parent(s) / legal representative and the subject respectively
  • Completed childhood vaccination against diphtheria, pertussis and tetanus (i.e, received 4 doses of Japanese-produced tetanus toxoid, diphtheria toxoid and acellular pertussis vaccine absorbed \[DTaP vaccine\]), confirmed by checking immunization records and have not yet undergone additional adsorbed Diphtheria and Tetanus toxoid (DT) vaccination
  • Able to attend all scheduled visits and to comply with all trial procedures
  • For female subjects, either pre-menarchal, or post-menarchal with a negative urine pregnancy test.

You may not qualify if:

  • Any conditions or diseases which, in the opinion of the investigator
  • would pose a health risk to the subject
  • or might interfere with the ability to participate fully in the study
  • or might interfere with evaluation of the vaccine
  • or would otherwise make participation inappropriate according to the investigator's clinical judgment
  • History of diphtheria, tetanus, pertussis, confirmed either clinically, serologically, or microbiologically
  • Known systemic hypersensitivity to any of the vaccine components or history of a life threatening reaction to a vaccine containing the same substances of the study vaccine
  • Vaccination in the last 5 years against tetanus, diphtheria, and/or pertussis
  • Known or suspected congenital immunodeficiency, or current / previous acquired immunodeficiency, or current / previous receipt of immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy, or current / previous (within the last 6 months) systemic corticosteroid therapy
  • Planned participation in another clinical trial during the present trial period
  • Receipt of blood or blood-derived products in the past 3 months, that might interfere with assessment of the immune response
  • Receipt of any vaccine within the 4 weeks preceding the trial vaccination, except for influenza vaccination, which may be received at least 2 weeks before the study vaccine
  • Planned receipt of any vaccine during the trial period
  • Clinical or known serological evidence of systemic illness including Hepatitis B, Hepatitis C and/or Human Immunodeficiency Virus (HIV) infection
  • At high risk for diphtheria, tetanus or pertussis infection during the trial
  • +7 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Unknown Facility

Aichi, Japan

Location

Unknown Facility

Ibaraki, Japan

Location

Unknown Facility

Nagano, Japan

Location

Related Links

MeSH Terms

Conditions

Whooping CoughTetanusDiphtheria

Interventions

adacel

Condition Hierarchy (Ancestors)

Bordetella InfectionsGram-Negative Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfectionsRespiratory Tract InfectionsRespiratory Tract DiseasesClostridium InfectionsGram-Positive Bacterial InfectionsCorynebacterium InfectionsActinomycetales Infections

Results Point of Contact

Title
Medical Director
Organization
Sanofi Pasteur Inc.

Study Officials

  • Medical Director

    Sanofi Pasteur K.K

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 17, 2012

First Posted

September 21, 2012

Study Start

September 1, 2012

Primary Completion

November 1, 2012

Study Completion

May 1, 2013

Last Updated

February 21, 2014

Results First Posted

February 21, 2014

Record last verified: 2014-02

Locations