← Eichor
Study identifier: NCT06803524 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

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

Condition: Pertussis  ·  Sponsor: Mahidol University

PhasePhase 4
Planned participants126
Who can joinAll sexes, N/A to no upper limit
Healthy volunteersYes

About this study

This is a phase IV, open-label, non-randomized study to demonstrate superior immunogenicity and safety of a second booster dose of Pertagen® as compared to Adacel® at 10 years after the first booster vaccination and to evaluate the long-term persistence of specific antibodies induced by BioNet's recombinant aP (Pertagen®) and TdaP (Boostagen®) vaccines and a chemically-detoxified Tdap vaccine (Adacel®) at 10 years after the first booster in participants who were vaccinated in the phase II/III trial (Protocol No. TDA202).

This description comes directly from the study's public registry record.

Talk to the study team

Punnee Pitisuttithum  ·  0818294906  ·  punnee.pit@mahidol.ac.th

Jittima Dhitavat  ·  0875921777  ·  ่jittima_pu@yahoo.com

Always discuss trial participation with your own doctor first.

Locations (2)

Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol UniversityBangkok Noi, Bangkok Metropolis, ThailandRecruiting
Vaccine Trial CentreRatchathewi, Bangkok Metropolis, ThailandRecruiting

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT06803524