Pneumococcal Disease Clinical Trial
Official title:
A PHASE 3, RANDOMIZED, DOUBLE-BLIND TRIAL TO EVALUATE THE SAFETY AND IMMUNOGENICITY OF A 20-VALENT PNEUMOCOCCAL CONJUGATE VACCINE GIVEN IN A SERIES OF 3 INFANT DOSES AND 1 TODDLER DOSE IN INFANTS IN INDIA AND TAIWAN
The purpose of this study is to understand the safety and effects of a study vaccine (20vPnC) in infants and toddlers. This study is enrolling participants who are: - Born after at least 36 weeks of pregnancy and about 2 months of age at the time of entering the study - Have a bodyweight of at least 3 kg Participants will receive either the study vaccine (20vPnC) or a licensed vaccine (13vPnC) as a 4-dose schedule as a shot in the muscle. Participants will receive Dose 1 on study day 1. Dose 2 will be given 28-70 days after Dose 1, and Dose 3 will be given 28-70 days after Dose 2. Dose 4 will be given at 365-455 days (approximately 12-15 months) of age. Participation in the study will take approximately 15 months, during which participants will come to the study clinic for 6 times. The study team will ask questions about the participant's health and take some blood samples during the visit.
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