PMID- 36328879 OWN - NLM STAT- MEDLINE DCOM- 20221121 LR - 20230126 IS - 1873-2518 (Electronic) IS - 0264-410X (Linking) VI - 40 IP - 49 DP - 2022 Nov 22 TI - Safety, tolerability and immunogenicity of Biological E's CORBEVAX vaccine in children and adolescents: A prospective, randomised, double-blind, placebo controlled, phase-2/3 study. PG - 7130-7140 LID - S0264-410X(22)01308-1 [pii] LID - 10.1016/j.vaccine.2022.10.045 [doi] AB - BACKGROUND: After establishing safety and immunogenicity of Biological-E's CORBEVAX vaccine in adult population (18-80 years) in Phase 1-3 studies, vaccine is further tested in children and adolescents in this study. METHODS: This is a phase-2/3 prospective, randomised, double-blind, placebo-controlled study evaluating safety, reactogenicity, tolerability and immunogenicity of CORBEVAX vaccine in children and adolescents of either gender between <18 to >/=12 years of age in Phase-2 and <18 to >/=5 years of age in Phase-Phase-2/Phase-3 with placebo as a control. This study has two age sub-groups; subgroup-1 with subjects <18 to >/=12 years of age and subgroup-2 with subjects <12 to >/=5 years of age. In both sub groups, eligible subjects (SARS-CoV-2 RT-PCR negative and seronegative at baseline) were randomized to receive either CORBEVAX vaccine or Placebo in 3:1 ratio. FINDINGS: The safety profile of CORBEVAX vaccine in both pediatric cohorts was comparable to the placebo-control group. Majority of reported adverse events (AEs) were mild in nature. No severe or serious-AEs, medically attended AEs (MAAEs) or AEs of special interest (AESI) were reported during the study period and all reported AEs resolved without any sequelae. In both pediatric age groups, CORBEVAX vaccinated subjects showed significant improvement in humoral immune-responses in terms of anti-RBD-IgG concentrations, anti-RBD-IgG1 titers, neutralizing-antibody (nAb)-titers against Ancestral-Wuhan and Delta-strains. Significantly high interferon-gamma immune- response (cellular) was elicited by CORBEVAX vaccinated subjects with minimal effect on IL-4 cytokine secretion. INTERPRETATIONS: The safety profile of CORBEVAX vaccine in <18 to >/=5 years' children and adolescents was found to be safe and tolerable. Significant increase in anti-RBD-IgG and nAb-titers and IFN-gamma immune-responses were observed post-vaccination in both pediatric age sub-groups. The nAb titers observed in both the pediatric age cohorts were non-inferior to the adult cohort (BECT069 study) in terms of ratio of the GMT's of both the cohorts. This study shows that CORBEVAX vaccine is highly immunogenic and can be safely administered to pediatric population as young as 5 years old. The study was prospectively registered with clinical trial registry of India- CTRI/2021/10/037066. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Thuluva, Subhash AU - Thuluva S AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. Electronic address: subhash.thuluva@biologicale.com. FAU - Paradkar, Vikram AU - Paradkar V AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Gunneri, SubbaReddy AU - Gunneri S AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Yerroju, Vijay AU - Yerroju V AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Mogulla, Rammohan Reddy AU - Mogulla RR AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Suneetha, Pothakamuri Venkata AU - Suneetha PV AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Turaga, Kishore AU - Turaga K AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Kyasani, Mahesh AU - Kyasani M AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Manoharan, Senthil Kumar AU - Manoharan SK AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Adabala, Srikanth AU - Adabala S AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Sri Javvadi, Aditya AU - Sri Javvadi A AD - Biological E Limited, 18/1&3, Azamabad, Hyderabad 500 020, Telangana, India. FAU - Medigeshi, Guruprasad AU - Medigeshi G AD - Bioassay Laboratory, Translational Health Science and Technology Institute, Faridabad 121001, India. FAU - Singh, Janmejay AU - Singh J AD - Bioassay Laboratory, Translational Health Science and Technology Institute, Faridabad 121001, India. FAU - Shaman, Heena AU - Shaman H AD - Bioassay Laboratory, Translational Health Science and Technology Institute, Faridabad 121001, India. FAU - Binayke, Akshay AU - Binayke A AD - Bioassay Laboratory, Translational Health Science and Technology Institute, Faridabad 121001, India. FAU - Zaheer, Aymaan AU - Zaheer A AD - Bioassay Laboratory, Translational Health Science and Technology Institute, Faridabad 121001, India. FAU - Awasthi, Amit AU - Awasthi A AD - Bioassay Laboratory, Translational Health Science and Technology Institute, Faridabad 121001, India. FAU - Narang, Manish AU - Narang M AD - Guru Teg Bahadur Hospital (GTB), Delhi, India. FAU - Nanjappa, Pradeep AU - Nanjappa P AD - Cheluvamba Hospital, Mysore, Karnataka, India. FAU - Mahantshetti, Niranjana AU - Mahantshetti N AD - KLES Dr. Prabhakar Kore Hospital & Medical Research Centre, Belagavi, Karnataka, India. FAU - Swarup Garg, Bishan AU - Swarup Garg B AD - Mahatma Gandhi Institute of Medical Sciences (MGIMS), Wardha, Maharashtra, India. FAU - Pandey, Anil Kumar AU - Pandey AK AD - ESIC Medical College & Hospital, Faridabad, Haryana, India. LA - eng SI - CTRI/TRI/2021/10/037066 PT - Clinical Trial, Phase II PT - Clinical Trial, Phase III PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20221031 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (Vaccines) RN - 0 (Immunoglobulin G) RN - 0 (Antibodies, Viral) RN - 0 (Antibodies, Neutralizing) SB - IM MH - Adult MH - Humans MH - Child MH - Adolescent MH - Child, Preschool MH - SARS-CoV-2 MH - Prospective Studies MH - *COVID-19/prevention & control MH - *Vaccines MH - Double-Blind Method MH - Immunoglobulin G MH - Immunogenicity, Vaccine MH - Antibodies, Viral MH - Antibodies, Neutralizing OTO - NOTNLM OT - Adverse events OT - Covid-19 OT - Neutralizing antibodies OT - Protein subunit OT - Receptor binding domain OT - SARS-CoV-2 OT - Vaccine COIS- Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: ST, VP, SG, VY, RM, PVS, KT, MK, SKM, SA and ASJ are employees of Biological E Limited and they don't have any incentives or stock options. All other participating authors declare no competing interests. EDAT- 2022/11/04 06:00 MHDA- 2022/11/22 06:00 CRDT- 2022/11/03 23:05 PHST- 2022/06/16 00:00 [received] PHST- 2022/10/10 00:00 [revised] PHST- 2022/10/14 00:00 [accepted] PHST- 2022/11/04 06:00 [pubmed] PHST- 2022/11/22 06:00 [medline] PHST- 2022/11/03 23:05 [entrez] AID - S0264-410X(22)01308-1 [pii] AID - 10.1016/j.vaccine.2022.10.045 [doi] PST - ppublish SO - Vaccine. 2022 Nov 22;40(49):7130-7140. doi: 10.1016/j.vaccine.2022.10.045. Epub 2022 Oct 31.