PMID- 36053721 OWN - NLM STAT- MEDLINE DCOM- 20221219 LR - 20221222 IS - 2164-554X (Electronic) IS - 2164-5515 (Print) IS - 2164-5515 (Linking) VI - 18 IP - 6 DP - 2022 Nov 30 TI - Immunogenicity, reactogenicity and safety of an inactivated quadrivalent influenza vaccine in children and adolescents 6 months through 17 years of age in India. PG - 2104527 LID - 10.1080/21645515.2022.2104527 [doi] LID - 2104527 AB - Efficacy and safety data on quadrivalent influenza vaccines (QIVs) for immunization of Indian children are scarce. This phase 3, registration study evaluated the immunogenicity, safety, and tolerability of a QIV in Indian children aged 6-35 months (Group 1) and 3-17 y (Group 2). Subjects received one or two doses (0.5 mL each) of the study vaccine based on their priming status. Immunogenicity (post-vaccination geometric mean fold increase in hemagglutination inhibition [HI] titers and proportion of patients with seroprotection and seroconversion against the four influenza strains), unsolicited adverse events (AEs), and tolerability were analyzed. Among 118 subjects enrolled in each group, the geometric mean(standard deviation) fold increase in HI titers against A(H3N2), A(H1N1), B(Victoria), and B(Yamagata) strains were 31.7(5.33), 10.5(6.06), 4.1(5.70), and 8.6(5.34) in Group 1 and 14.0(4.37), 9.2(4.26), 14.3(6.73), and 14.4(5.41) in Group 2, respectively. Seroprotection was achieved by 91.2%, 83.3%, 41.2%, and 68.4% subjects in Group 1 and 100%, 95.8%, 73.7%, and 89.8% subjects in Group 2, respectively. Seroconversion was achieved by 87.7%, 66.7%, 41.2%, and 64.9% subjects in Group 1 and 89.0%, 78.8%, 69.5%, and 75.4% subjects in Group 2, respectively. Vaccination site pain and fever were the most common local and systemic reactions, respectively. Systemic reactions were more frequent in Group 1 (16.9% vs 7.6%). Most subjects (>90%) did not experience inconvenience within 7 d of vaccination; <10% in both groups reported unsolicited AEs. Thus, the QIV had a positive benefit/risk profile in Indian children/adolescents aged 6 months to 17 y.CTRI Registry No: CTRI/2018/05/014191Registry Name: Clinical Trials Registry - IndiaDate of Trial Registration: May 29, 2018Study Dates: August 03, 2018 (first subject first visit) to January 31, 2019 (last subject last visit)Drugs Controller General of India [DCGI] permission letter number: CT-03/2018. FAU - Kalappanavar, Nijalingappa K AU - Kalappanavar NK AD - Department of Pediatrics, S.S Institute of Medical Sciences and Research Center, Davangere, India. FAU - Ghosh, Apurba AU - Ghosh A AD - Department of Pediatrics, Institute of Child Health, Kolkata, India. FAU - Sharma, Monika AU - Sharma M AD - Department of Pediatric Medicine, Christian Medical College & Hospital, Ludhiana, India. FAU - Ravichandran, Latha AU - Ravichandran L AD - Department of Pediatric Medicine, Sri Ramachandra Hospital, Chennai, India. FAU - Choraria, Nirmal AU - Choraria N AD - Department of Pediatrics, Nirmal Hospital Pvt. Ltd, Surat, India. FAU - P, Saravanan AU - P S AD - Department of Paediatrics, Sapthagiri Institute of Medical Sciences & Research Centre, Bangalore, India. FAU - Pandey, Madhukar AU - Pandey M AD - Department of Pediatrics, Oriana Hospital, Varanasi, India. FAU - N, Pradeep AU - N P AD - Department of Immunology, Cheluvamba Hospital, Opposite Mysore Medical College and Research Institute, Mysore, India. FAU - Shah, Prachee AU - Shah P AD - Department of Pediatrics, Panchshil Hospital, Ahmedabad, India. FAU - Nair, Sneha AU - Nair S AD - Established Pharmaceuticals Division, Abbott India Ltd, Mumbai, India. FAU - Shaikh, Ashfaque AU - Shaikh A AD - Established Pharmaceuticals Division, Abbott India Ltd, Mumbai, India. FAU - van de Witte, Serge AU - van de Witte S AD - Established Pharmaceuticals Division, Abbott Healthcare Products B.V., Weesp, The Netherlands. LA - eng PT - Clinical Trial, Phase III PT - Journal Article DEP - 20220902 PL - United States TA - Hum Vaccin Immunother JT - Human vaccines & immunotherapeutics JID - 101572652 RN - 0 (Antibodies, Viral) RN - 0 (Influenza Vaccines) RN - 0 (Vaccines, Combined) RN - 0 (Vaccines, Inactivated) SB - IM MH - Adolescent MH - Child MH - Humans MH - Infant MH - Antibodies, Viral MH - Hemagglutination Inhibition Tests MH - HIV Seropositivity MH - Immunogenicity, Vaccine MH - Influenza A Virus, H1N1 Subtype MH - Influenza A Virus, H3N2 Subtype MH - Influenza B virus MH - *Influenza Vaccines/adverse effects MH - *Influenza, Human/prevention & control MH - Vaccines, Combined/adverse effects MH - Vaccines, Inactivated/adverse effects MH - Child, Preschool MH - India PMC - PMC9746468 OTO - NOTNLM OT - Adolescents OT - children OT - hemagglutination OT - immunogenicity OT - influenza OT - quadrivalent influenza vaccine OT - reactogenicity COIS- Serge van de Witte is an employee of Abbott Healthcare Products B.V. Sneha Nair and Ashfaque Shaikh are employees of Abbott India Ltd. All other authors were investigators in the study and received grant support from Abbott to conduct this study. No other conflict of interest is declared for the work presented in this article. EDAT- 2022/09/03 06:00 MHDA- 2022/12/15 06:00 PMCR- 2022/09/02 CRDT- 2022/09/02 12:12 PHST- 2022/09/03 06:00 [pubmed] PHST- 2022/12/15 06:00 [medline] PHST- 2022/09/02 12:12 [entrez] PHST- 2022/09/02 00:00 [pmc-release] AID - 2104527 [pii] AID - 10.1080/21645515.2022.2104527 [doi] PST - ppublish SO - Hum Vaccin Immunother. 2022 Nov 30;18(6):2104527. doi: 10.1080/21645515.2022.2104527. Epub 2022 Sep 2.