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  • Title: Phase IV: randomized controlled trial to evaluate lot consistency of trivalent split influenza vaccines in healthy adults.
    Author: Song JY, Cheong HJ, Lee J, Wie SH, Park KH, Kee SY, Jeong HW, Kim YS, Noh JY, Choi WS, Park DW, Sohn JW, Kim WJ.
    Journal: Hum Vaccin Immunother; 2014; 10(10):2958-64. PubMed ID: 25483462.
    Abstract:
    Influenza vaccines are the primary method for preventing influenza and its complications. Considering the increasing demand for influenza vaccines, vaccine manufacturers are required to establish large-scale production systems. This phase IV randomized trial was conducted to evaluate the lot consistency of trivalent split influenza vaccines regarding immunogenicity and safety. A total of 1,023 healthy adults aged 18-64 y were enrolled in the study. Subjects were randomly assigned in a 1:1 ratio to receive the GC FLU® Prefilled Syringe or the GC FLU® Injection, and they were further randomized to one of 3 lots of each vaccine in a 1:1:1 ratio. In both GC FLU® Injection and GC FLU® Prefilled Syringe groups, immune responses were equivalent between lots for each of the 3 vaccine strains on day 21. The 2-sided 95% CI of GMT ratios between pairs of lots were between 0.67 and 1.5, meeting the equivalence criteria. After vaccination, all 3 criteria of the European Medicines Agency were met in both GC FLU® Injection and GC FLU® Prefilled Syringe groups. The vaccines showed tolerable safety profiles without serious adverse events. The demonstration of lot consistency, robust immunogenic responses and favorable safety profiles support the reliability of mass-manufacturing systems for the GC FLU® Injection and GC FLU® Prefilled Syringe.
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