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PertussisPhase 1/2NCT01689324

Study of Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccine (ADACEL®) as a Booster in Adolescents

A Phase 1/2 study testing (ADACEL®): Tetanus, Reduced Diphtheria Toxoid and Acellular Pertussis in people with Pertussis and Tetanus, run by Sanofi Pasteur, a Sanofi Company at 3 sites in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 11 to 12 yearsHealthy volunteers can take part
Conditions the study is for
Pertussis, Tetanus, Diphtheria
What is being tested?
(ADACEL®): Tetanus, Reduced Diphtheria Toxoid and Acellular Pertussis
Could I receive a placebo?
No, everyone receives an active treatment
How many people
43 participants
Where
3 sitesJapan
Study dates
Sep 2012to May 2013
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 11 to 12 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Aged 11 or 12 years on the day of inclusion
  • 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.

Who cannot join

  • 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
Show all 24Show fewer
  • 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
  • Participation in another clinical trial investigating a vaccine, drug, medical device, or medical procedure in the 4 weeks preceding the trial inclusion
  • 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
  • Known pregnancy, or a positive urine pregnancy test
  • Currently breastfeeding a child
  • Known thrombocytopenia, contraindicating intramuscular (IM) vaccination, or a history of thrombocytopenia
  • Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM vaccination
  • History of acute disseminated encephalomyelitis, encephalopathy, Guillain-Barré Syndrome (GBS), or autoimmune disease
  • Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily
  • Current alcohol abuse or drug addiction that might interfere with the ability to comply with trial procedures
  • Identified as an employee of an Investigator, a study center, a study-affiliated vendor, or the Sponsor, with direct or indirect involvement in the proposed study or other studies under the direction of that Investigator or study center; or identified as a spouse or child (whether natural or adopted) of such an employee.

Trial locations and contacts

3 sites in 1 country.

Japan3 sites
  • Study site

    Aichi

  • Study site

    Ibaraki

  • Study site

    Nagano

Other trials in Japan

About this study

Official title: Immunogenicity and Safety of the Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccine Adsorbed (SP306) as a Booster in Japanese Adolescents

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.
Read the detailed description

All participants will receive a single booster dose of Tdap vaccine (ADACEL®) on Day 0 and undergo immunogenicity assessment from blood samples provided prior to, and 28 days post-vaccination. Tolerability and safety will be monitored up to 28 days post-vaccination.

Being tested
(ADACEL®): Tetanus, Reduced Diphtheria Toxoid and Acellular Pertussis
Keywords
Pertussis, Tetanus, Diphtheria, Acellular pertussis, ADACEL®, Tdap vaccine
Medical subject headings
Whooping Cough, Tetanus, Diphtheria

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • (ADACEL®): Tetanus, Reduced Diphtheria Toxoid and Acellular PertussisBiological

    Also called ADACEL®, Tdap Vaccine

    0.5 mL, Intramuscular

Study groups in NCT01689324
Study groupRoleWhat they receive
Study GroupExperimentalParticipants will receive a single booster dose of Tdap vaccine (ADACEL®) on Day 0.
Receives: Biological: (ADACEL®): Tetanus, Reduced Diphtheria Toxoid and Acellular Pertussis

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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.

    Measured: Day 28 post-vaccination

  2. 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.

    Measured: Day 28 post-vaccination

  3. 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)

    Measured: Day 28 post-vaccination

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Sep 2012 (estimated)
  2. Study startSep 2012
  3. Primary completionNov 2012
  4. Study completionMay 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
43 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01689324
Sponsor's protocol ID
Td540
Other IDs
U1111-1124-7671
Status last verified
Feb 2014
First submitted
17 Sep 2012
Last updated
21 Feb 2014
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing (ADACEL®): Tetanus, Reduced Diphtheria Toxoid and Acellular Pertussis in people with Pertussis and Tetanus, run by Sanofi Pasteur, a Sanofi Company at 3 sites in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 24 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Feb 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 21 Feb 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants With Seroprotection Against Diphtheria and Tetanus Antigens Following Vaccination With ADACEL® (time frame: Day 28 post-vaccination). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Feb 2014.

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