The Journal of infectious diseases · 2019
Immunogenicity and Safety of a Sabin Strain-Based Inactivated Polio Vaccine: A Phase 3 Clinical Trial.
Клиническое исследование III фазыСтатьяРандомизированное исследованиеПоддержка исследования: вне правительства СШАEquivalence TrialНазвание и аннотация: Перевод в очереди
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Hu Yuemei, Wang Jianfeng, Zeng Gang, Chu Kai, Jiang Deyu, Zhu Fengdong, Ying Zhifang, Chen Lei, Li Changgui, Zhu Fengcai, Yin Weidong
Аннотация
BACKGROUND: The Sabin strain-based inactivated polio vaccine (sIPV) plays a vital role in eradicating poliomyelitis in developing countries.
METHODS: The study was designed as a randomized, controlled, double-blinded, noninferiority trial. A total of 1200 healthy infants aged 60-90 days were enrolled and randomly assigned to receive 3 doses of either sIPV (the experimental arm) or IPV (the control arm) at days 0, 30, and 60. Immunogenicity and safety outcomes were assessed using the per-protocol and safety populations, respectively.
RESULTS: A total of 553 and 562 participants in the sIPV and IPV groups, respectively, were included in the per-protocol population. Seroconversion rates in the sIPV and IPV groups were 98.0% and 94.1%, respectively, for type 1 poliovirus (P < .01); 94.8% and 84.0%, respectively, for type 2 (P < .01); and 98.9% and 97.7%, respectively, for type 3 (P = .11). A total of 599 and 600 participants in the sIPV and IPV groups, respectively, were included in the safety population. Fever was the most common adverse event, occurring in 61.6% and 49.8% of participants in the experimental and control arms, respectively (P < .01).
CONCLUSIONS: The sIPV demonstrated an immunogenicity profile noninferior to that of the conventional IPV and had a good safety profile.
CLINICAL TRIALS REGISTRATION: NCT03526978.
METHODS: The study was designed as a randomized, controlled, double-blinded, noninferiority trial. A total of 1200 healthy infants aged 60-90 days were enrolled and randomly assigned to receive 3 doses of either sIPV (the experimental arm) or IPV (the control arm) at days 0, 30, and 60. Immunogenicity and safety outcomes were assessed using the per-protocol and safety populations, respectively.
RESULTS: A total of 553 and 562 participants in the sIPV and IPV groups, respectively, were included in the per-protocol population. Seroconversion rates in the sIPV and IPV groups were 98.0% and 94.1%, respectively, for type 1 poliovirus (P < .01); 94.8% and 84.0%, respectively, for type 2 (P < .01); and 98.9% and 97.7%, respectively, for type 3 (P = .11). A total of 599 and 600 participants in the sIPV and IPV groups, respectively, were included in the safety population. Fever was the most common adverse event, occurring in 61.6% and 49.8% of participants in the experimental and control arms, respectively (P < .01).
CONCLUSIONS: The sIPV demonstrated an immunogenicity profile noninferior to that of the conventional IPV and had a good safety profile.
CLINICAL TRIALS REGISTRATION: NCT03526978.