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2-year Follow-up After a Single Dose Acellular Pertussis Vaccination

NCT04113655 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 180

Last updated 2019-10-03

No results posted yet for this study

Summary

In July 2015-November 2016, a phase II/III randomized, observer-blind,controlled study of two acellular Pertussis vaccines (aP standalone and TdaP combined vaccined) manufactured by BioNet-Asia Co., Ltd. (Bionet) and chemically-detoxified Adacel Tdap vaccine was conducted in Bangkok, Thailand in healthy subjects aged 12-17 years (Protocol No. TDA202; http://clinicaltrials.in.th; Study ID:TCTR20150703002). A total of 450 subjects were enrolled into the study at 2 study sites (Site No.1:Faculty of Medicine Siriraj Hospital; Site No.2:Vaccine Trial Centre (VTC), Faculty of Tropical Medicine, Mahidol University) with equal number of 225 subjects enrolled at each study site. During the study, the subjects had been randomized in a 1:1:1 ratio to received intramuscularly a booster dose (0.5 mL) of the study vaccines.

In this current study, persistence of pertussis antibodies induced by a booster dose of recombinant acellular Pertussis based vaccines (Pertagen and Boostagen) manufactured by Bionet will be evaluated and compared to the conventional chemically-detoxified Tdap vaccine (Adacel) at 2 years after previously immunized in the TDA202 study.

Conditions

  • Pertussis

Interventions

BIOLOGICAL

Pertagen (aP BioNet)

Pertagen (aP BioNet) was produced with a recombinant B pertussis strain that was genetically inactivated by the introduction of mutations (Arg9Lys and Glu129Gly) in the ptx operon of the S1 gene. Each 0.5 mL dose of Pertagen (aP BioNet) contained 5 µg PTgen, 5 µg FHA, and 0.3 mg as aluminium cation. The study vaccine was presented in a single-dose prefilled syringe. Each subject was received one intramuscular injection in the non-dominant deltoid region in parent protocol TDA202.

BIOLOGICAL

Boostagen (TdaP BioNet)

Boostagen (TdaP BioNet) was produced with a recombinant B pertussis strain that was genetically inactivated by the introduction of mutations (Arg9Lys and Glu129Gly) in the ptx operon of the S1 gene. Each 0.5 mL dose of Boostagen (TdaP BioNet) contained 5 µg PTgen, 5 µg FHA, and 0.3 mg as aluminium cation. TDaP dose additional contained at least 7.5 Lf tetanus toxoid and at least 2.0 Lf diphtheria toxoid. The study vaccine was presented in a single-dose prefilled syringe. Each subject was received one intramuscular injection in the non-dominant deltoid region in parent protocol TDA202.

BIOLOGICAL

Adacel

Comparator vaccine, Adacel (Sanofi-Pasteur, North York, ON, Canada) was produced chemically inactivated pertussis toxin. Each 0.5 mL dose of Adacel (as comparator vaccine) contained 2.5 µg PTchem, 5 µg FHA, 3 µg pertactin, 5 µg fimbriae types 2 and 3, 5.0 Lf tetanus toxoid, 2.0 Lf diphtheria toxoid and 0.33 mg as aluminium cation. The study vaccine was presented in a single-dose prefilled syringe. Each subject was received one intramuscular injection in the non-dominant deltoid region in parent protocol TDA202

Sponsors & Collaborators

  • Mahidol University

    lead OTHER

Principal Investigators

  • Punnee Pitisutthithum, MD · Mahidol University

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2017-06-20
Primary Completion
2017-07-04
Completion
2017-07-31

Countries

  • Thailand

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04113655 on ClinicalTrials.gov