TY - JOUR TI - Efficacy, immunogenicity, and safety of a quadrivalent inactivated influenza vaccine in children aged 6-35 months: A multi-season randomised placebo-controlled trial in the Northern and Southern Hemispheres AU - Pepin, Stephanie AU - Dupuy, Martin AU - Corazon Borja-Tabora, Charissa AU - Fay AU - Montellano, May AU - Bravo, Lulu AU - Santos, Jaime AU - de Castro, AU - Jo-Anne AU - Rivera-Medina, Doris Maribel AU - Cutland, Clare AU - Ariza, AU - Miguel AU - Diez-Domingo, Javier AU - Diaz Gonzalez, Celia and AU - Martinon-Torres, Federico AU - Papadopoulou-Alataki, Efimia and AU - Theodoriado, Maria AU - Kazek-Duret, Marie Pierre AU - Gurunathan, Sanjay AU - and De Bruijn, Iris AU - Abalos, Karina AU - Aurell, Helena AU - Maria AU - Baldo, Jose AU - Bona, Gianni AU - Angel, Miguel AU - Cadorna-Carlos, AU - Josefina AU - Cangrejo, Marcela AU - Capilna, Brindusa Ruxandra AU - Cara, AU - Alexandra Carmen AU - Carmona Martinez, Alfonso AU - Chemin, Frederic and AU - Closa, Ricardo AU - Cots, Manuel Baca AU - Coux, Florence and AU - Diez-Domingo, Javier AU - Dracea, Laura Larisa AU - Emporiadou, Maria and AU - Espiau, Maria AU - Esposito, Susanna AU - Pecurariu, Oana Asso Falup and AU - Garces-Sanchez, Maria AU - Garg, Sanjay AU - Gil, Amparo AU - Gonzales, AU - Laurie AU - Guevel, Ronan AU - Guillen, Sara AU - Icardi, Giancarlo and AU - Laot, Thelma AU - Lacroix, Isabelle AU - Mares, Josep AU - Martinez Pons, AU - Manuel AU - Moreau, Catherine AU - Neamtu, Mihai Leonida AU - Neculau, AU - Andrea Elena AU - Ojeda, Joyce AU - Papaevangelou, Vana AU - Penon, Maria AU - Gabriella AU - Petit, Celine AU - Philibert, Marie AU - Planelles AU - Cantarino, Victoria AU - Py, Marie-Laure AU - Ramos, Jose T. AU - Rivas, AU - Enrique AU - Roilides, Emmanouel AU - Rosich, Angels AU - Salamand, Camille AU - and Suarez, Eva AU - Surdu, Gabriel Doru AU - Cerdan Vera, Teresa and AU - Tsolia, Mariza AU - Vicedo, Mira AU - Woods, Anne AU - GQM05 Study Grp JO - Vaccine PY - 2019 VL - 37 TODO - 13 SP - 1876-1884 PB - Elsevier Sci Ltd, Exeter, United Kingdom SN - 0264-410X TODO - 10.1016/j.vaccine.2018.11.074 TODO - Quadrivalent inactivated influenza vaccine; Children; Efficacy; Safety; Immunogenicity TODO - Background: A quadrivalent split-virion inactivated influenza vaccine (VaxigripTetre (TM), Sanofi Pasteur; IIV4) containing two A strains (H1N1 and H3N2) and B strains from both lineages (Victoria and Yamagata) was approved in Europe in 2016 for individuals aged >= 3 years. This study examined the efficacy and safety of IIV4 in children aged 6-35 months. Methods: This was a phase III randomised controlled trial conducted in Latin America, Asia, Africa, and Europe during the Northern Hemisphere 2014/2015 and 2015/2016 and Southern Hemisphere 2014 and 2015 influenza seasons. Healthy children aged 6-35 months not previously vaccinated against influenza were randomised to receive two full doses 28 days apart of IIV4, placebo, the licensed trivalent splitvirion inactivated vaccine (IIV3), an investigational IIV3 containing a B strain from the alternate lineage. The primary objective was to demonstrate efficacy against influenza illness caused by any strain or vaccine-similar strains. Results: The study enrolled 5806 participants. Efficacy, assessed in 4980 participants completing the study according to protocol, was demonstrated for IIV4. Vaccine efficacy was 50.98% (97% CI, 37.36-61.86%) against influenza caused by any A or B type and 68.40% (97% CI, 47.07-81.92%) against influenza caused by vaccine-like strains. Safety profiles were similar for IIV4, placebo, and the IIV3s, although injection-site reactions were slightly more frequent for IIV4 than placebo. Conclusions: IIV4 was safe and effective for protecting children aged 6-35 months against influenza illness caused by vaccine-similar or any circulating strains. (C) 2018 The Authors. Published by Elsevier Ltd. ER -