PMID- 34726574 OWN - NLM STAT- MEDLINE DCOM- 20220418 LR - 20220531 IS - 2164-554X (Electronic) IS - 2164-5515 (Print) IS - 2164-5515 (Linking) VI - 18 IP - 1 DP - 2022 Dec 31 TI - Safety, tolerability, and immunogenicity of V114, a 15-valent pneumococcal conjugate vaccine, administered concomitantly with influenza vaccine in healthy adults aged >/=50 years: a randomized phase 3 trial (PNEU-FLU). PG - 1-14 LID - 10.1080/21645515.2021.1976581 [doi] AB - Streptococcus pneumoniae and influenza viruses are associated with significant morbidity and mortality in older adults. Concomitant vaccination against these agents reduces hospitalization and mortality rates. This phase 3 trial evaluated safety, tolerability, and immunogenicity of concomitant and non-concomitant administration of V114, a 15-valent pneumococcal conjugate vaccine containing serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19F, 19A, 22F, 23F, 33F, and quadrivalent inactivated influenza vaccine (QIV), in healthy adults aged >/=50 years. Participants (N = 1,200) were randomized 1:1 to receive either V114 administered concomitantly with QIV (concomitant group) or QIV plus placebo (non-concomitant group) on Day 1, followed by placebo (concomitant group) or V114 (non-concomitant group) 30 days later. Randomization was stratified by age and history of pneumococcal polysaccharide vaccine receipt. Overall, 426 (71.0%) and 438 (73.5%) participants in the concomitant and non-concomitant groups experienced solicited injection-site adverse events (AEs); 278 (46.3%) and 300 (50.3%) reported solicited systemic AEs. Most solicited AEs were mild or moderate in severity and of short duration. Non-inferiority for pneumococcal- and influenza-specific antibody responses (lower bound 95% confidence interval of opsonophagocytic activity [OPA] and hemagglutination inhibition geometric mean titers [GMTs] ratios >/=0.5) was demonstrated for concomitant versus non-concomitant administration for all 15 pneumococcal serotypes and all four influenza strains. Consistent with previous studies, a trend was observed toward lower pneumococcal OPA GMTs in the concomitant versus the non-concomitant group. V114 administered concomitantly with QIV is generally well tolerated and immunologically non-inferior to non-concomitant administration, supporting coadministration of both vaccines. FAU - Severance, Randall AU - Severance R AUID- ORCID: 0000-0003-1580-5410 AD - Synexus Clinical Research, Chandler, AZ, USA. FAU - Schwartz, Howard AU - Schwartz H AD - Research Centers of America, Hollywood, FL, USA. FAU - Dagan, Ron AU - Dagan R AUID- ORCID: 0000-0002-8888-1046 AD - Faculty of Health Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel. FAU - Connor, Laurie AU - Connor L AD - Merck & Co., Inc., Kenilworth, NJ, USA. FAU - Li, Jianing AU - Li J AD - Merck & Co., Inc., Kenilworth, NJ, USA. FAU - Pedley, Alison AU - Pedley A AD - Merck & Co., Inc., Kenilworth, NJ, USA. FAU - Hartzel, Jonathan AU - Hartzel J AD - Merck & Co., Inc., Kenilworth, NJ, USA. FAU - Sterling, Tina M AU - Sterling TM AD - Merck & Co., Inc., Kenilworth, NJ, USA. FAU - Nolan, Katrina M AU - Nolan KM AUID- ORCID: 0000-0001-5030-7930 AD - Merck & Co., Inc., Kenilworth, NJ, USA. FAU - Tamms, Gretchen M AU - Tamms GM AD - Merck & Co., Inc., Kenilworth, NJ, USA. FAU - Musey, Luwy K AU - Musey LK AUID- ORCID: 0000-0001-5484-7037 AD - Merck & Co., Inc., Kenilworth, NJ, USA. FAU - Buchwald, Ulrike K AU - Buchwald UK AUID- ORCID: 0000-0002-6671-0115 AD - Merck & Co., Inc., Kenilworth, NJ, USA. LA - eng PT - Clinical Trial, Phase III PT - Journal Article PT - Randomized Controlled Trial DEP - 20211102 PL - United States TA - Hum Vaccin Immunother JT - Human vaccines & immunotherapeutics JID - 101572652 RN - 0 (Antibodies, Bacterial) RN - 0 (Influenza Vaccines) RN - 0 (Pneumococcal Vaccines) RN - 0 (Vaccines, Combined) RN - 0 (Vaccines, Conjugate) SB - IM MH - Aged MH - Antibodies, Bacterial MH - Humans MH - *Immunogenicity, Vaccine MH - *Influenza Vaccines/administration & dosage/adverse effects MH - Influenza, Human/prevention & control MH - Middle Aged MH - Pneumococcal Infections/prevention & control MH - *Pneumococcal Vaccines/administration & dosage/adverse effects MH - Streptococcus pneumoniae/immunology MH - Vaccines, Combined/adverse effects MH - Vaccines, Conjugate/administration & dosage/adverse effects PMC - PMC8920144 OTO - NOTNLM OT - Pneumococcal conjugate vaccine OT - concomitant OT - immunogenicity OT - influenza vaccine OT - safety EDAT- 2021/11/03 06:00 MHDA- 2022/04/19 06:00 PMCR- 2021/11/02 CRDT- 2021/11/02 12:17 PHST- 2021/11/03 06:00 [pubmed] PHST- 2022/04/19 06:00 [medline] PHST- 2021/11/02 12:17 [entrez] PHST- 2021/11/02 00:00 [pmc-release] AID - 1976581 [pii] AID - 10.1080/21645515.2021.1976581 [doi] PST - ppublish SO - Hum Vaccin Immunother. 2022 Dec 31;18(1):1-14. doi: 10.1080/21645515.2021.1976581. Epub 2021 Nov 2.