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Clinical Trial Summary

This study evaluates the seroprevalence of Bordetella pertussis antibodies and anti-pertussis antibodies response after its single dose of reduced-antigen, combined diphtheria, tetanus, and acellular pertussis vaccine (Tdap) in Thai pregnant women.

All participants with no immunity against pertussis will receive Tdap vaccine, while immune participants will be equally randomized into 2 groups. Half of immune participants will receive Tdap vaccine and the other half will receive dT vaccine as standard protocol.

Clinical Trial Description


Study Design

Related Conditions & MeSH terms

NCT number NCT03498300
Study type Interventional
Source Mahidol University
Status Active, not recruiting
Phase Early Phase 1
Start date May 9, 2018
Completion date April 2019

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