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This open, randomised controlled trial studied the immunogenicity and reactogenicity of two combined low-dose diphtheria, tetanus and acellular pertussis vaccines (Td5aP-IPV, REPEVAX, Aventis Pasteur MSD; and Td5aP, COVAXIS, Aventis Pasteur MSD + OPV, GlaxoSmithKline) in comparison with a standard dose diphtheria pre-school booster vaccine (DT2aP-IPV, TETRAVAC, Aventis Pasteur MSD) in a population of 3.5-5-year-old children administered concomitantly with measles, mumps and rubella vaccine (M-M-R II, Aventis Pasteur MSD). A linked sub-study aimed to evaluate the immunogenicity and reactogenicity of Td5aP-IPV in a population of younger children, aged 3-3.5 years. This study demonstrated non-inferiority of seroprotection rates for diphtheria and tetanus for the study vaccines and comparable immunogenicity for pertussis and polio components of the vaccines. Reactogenicity was similar for all three vaccines. The study vaccines containing low-dose diphtheria antigen (Td5aP-IPV and Td5aP + OPV) are immunogenic and have acceptable reactogenicity for use as a pre-school booster vaccine administered concomitantly with MMR.

Original publication

DOI

10.1016/j.vaccine.2004.04.027

Type

Journal article

Journal

Vaccine

Publication Date

10/2004

Volume

22

Pages

4262 - 4269

Addresses

Oxford Vaccine Group, Centre for Clinical Vaccinology & Tropical Medicine, University of Oxford, Churchill Hospital, Old Road, Headington, Oxford OX3 7LJ, UK.

Keywords

Humans, Diphtheria, Tetanus, Antitoxins, Diphtheria-Tetanus-acellular Pertussis Vaccines, Diphtheria-Tetanus-Pertussis Vaccine, Vaccines, Combined, Poliovirus Vaccines, Immunization, Secondary, Sample Size, Patient Compliance, Dose-Response Relationship, Immunologic, Child, Preschool, Female, Male, United Kingdom