Drugs / TdaP2gen
last change May 2026 re-read 3 minutes ago

TdaP2gen

Vaccine

Developed for
diphtheria · pertussis · tetanus
Investigated by
Chiang Mai University · Thailand Center of Excellence for Life Sciences

Trials 1

2027202820292030
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 4 NCT07621341 May 2026 → Dec 2029 expected diphtheria, pertussis, tetanus Chiang Mai University Not yet recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 5

DateIssuerRelease
2025-06-19 BioNet-Asia Co., Ltd. Results Avidity of pertussis toxin antibodies following vaccination with genetically versus chemically detoxified pertussis toxin-containing vaccines during pregnancy bionet-asia.com ↗
Avidity was comparable to Tdap8chem after vaccination with the low-dose PTgen formulations (ap1gen, Tdap1gen or Tdap2gen).
2024-01-12 BioNet-Asia Co., Ltd. Results Effective and safe transfer of maternal antibodies persisting two months postpartum following maternal immunization with different doses of recombinant pertussis-containing vaccines bionet-asia.com ↗
No difference in PTNA titers at birth was observed between all groups nor between time of vaccination.
2023-12-12 BioNet-Asia Co., Ltd. Results Effective and safe transfer of maternal antibodies persisting two months postpartum following maternal immunization with different doses of recombinant pertussis-containing vaccines bionet-asia.com ↗
At 2 months, PT GMC ratio to Tdap8chem (98.75% CI) was significantly higher for TdaP5gen (2.6 [1.7–4.0]) and comparable for other recombinant vaccines.
2023-06-22 BioNet-Asia Co., Ltd. Results A phase 2 randomized controlled dose-ranging trial of recombinant pertussis booster vaccines containing genetically inactivated pertussis toxin in pregnant women bionet-asia.com ↗
Combined with data from 250 non-pregnant women, all study vaccines containing PTgen were non-inferior to comparator vaccine (Tdap8chem).
2022-04-05 BioNet-Asia Co., Ltd. Results A phase 2 randomized controlled dose-ranging trial of recombinant pertussis booster vaccines containing genetically inactivated pertussis toxin in women of childbearing age bionet-asia.com ↗
Post-vaccination PT-IgG seroresponse rates were 92% (95% CI 81–98) for ap1gen, 88% (95% CI 76–95) for Tdap1gen, 80% (95% CI 66–90) for Tdap2gen, 94% (95% CI 83–99) for TdaP5gen, and 78% (95% CI 64–88) for Tdap8chem.

Evidence & citations 2 cited values

Every value below carries the sentence it was read from. 1 source stands behind the page.

FieldValueCited text
Known as TdaP2gen ClinicalTrials.gov intervention name — accepted as the source's own label NCT07621341 ↗
Modality Vaccine “recombinant acellular pertussis vaccine” NCT07621341 ↗