PMID- 26928074 OWN - NLM STAT- MEDLINE DCOM- 20161007 LR - 20220318 IS - 1873-2518 (Electronic) IS - 0264-410X (Linking) VI - 34 IP - 15 DP - 2016 Apr 4 TI - A randomized, observer-blind Phase Ib study to identify formulations and vaccine schedules of a trivalent Group B Streptococcus vaccine for use in non-pregnant and pregnant women. PG - 1786-91 LID - S0264-410X(16)00215-2 [pii] LID - 10.1016/j.vaccine.2016.02.044 [doi] AB - BACKGROUND: Group B streptococcus (GBS) is a leading cause of sepsis and meningitis in early infancy. Substantial data demonstrate that women with higher levels of circulating antibody against the capsular polysaccharide (CPS) deliver infants at reduced risk of GBS infection, which serves as the basis for vaccine design. This study evaluates two different dosages, two injection schedules and three formulations of an investigational trivalent (serotypes Ia, Ib and III) CRM197-glycoconjugate GBS vaccine in healthy, non-pregnant women. METHODS: 678 healthy non-pregnant women received one or two injections of one of two dosages (5/5/5 mug or 20/20/20 mug) of the investigational vaccine, formulated with or without aluminum hydroxide (Enrollment Group 1), or with full or half dosages of MF59((R)) (Enrollment Group 2); or a placebo (Enrollment Groups 1 and 2). Geometric mean serotype-specific antibody concentrations (GMCs) at Days 61 (Enrollment Group 1) and 361 (both Groups) were analyzed to select a formulation suitable for pregnant or non-pregnant women, respectively. Solicited adverse reactions were recorded up to Day 7 and adverse events (AEs) were recorded throughout the study. RESULTS: Rates of reported AEs were similar across all groups. Higher rates of local reactogenicity were seen in adjuvanted vaccine groups compared with non-adjuvanted vaccine (or placebo) groups. All vaccine groups elicited higher GMCs than placebo; differences between treatments were not statistically significant, indicating no additional potential benefit of higher antigen content, addition of adjuvant, or a second dose. CONCLUSIONS: All GBS vaccine formulations induced a persistent antibody response and showed similar immunogenicity profiles (NCT01150123). CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Leroux-Roels, Geert AU - Leroux-Roels G AD - Centre for Vaccinology, Ghent University Hospital, Ghent, Belgium. FAU - Maes, Cathy AU - Maes C AD - Centre for Vaccinology, Ghent University Hospital, Ghent, Belgium. FAU - Willekens, Julie AU - Willekens J AD - Centre for Vaccinology, Ghent University Hospital, Ghent, Belgium. FAU - De Boever, Fien AU - De Boever F AD - Centre for Vaccinology, Ghent University Hospital, Ghent, Belgium. FAU - de Rooij, Richard AU - de Rooij R AD - GlaxoSmithKline BV, Amsterdam, The Netherlands. FAU - Martell, Leah AU - Martell L AD - GlaxoSmithKline LLC, Cambridge, MA, USA. FAU - Bedell, Lisa AU - Bedell L AD - GlaxoSmithKline LLC, Cambridge, MA, USA. Electronic address: lisa.x.bedell@gsk.com. FAU - Wittke, Frederick AU - Wittke F AD - GSK Vaccines S.r.l, Siena, Italy. FAU - Slobod, Karen AU - Slobod K AD - GlaxoSmithKline LLC, Cambridge, MA, USA. FAU - Dull, Peter AU - Dull P AD - GlaxoSmithKline LLC, Cambridge, MA, USA. LA - eng SI - ClinicalTrials.gov/NCT01150123 PT - Clinical Trial, Phase I PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20160305 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (Adjuvants, Immunologic) RN - 0 (Antibodies, Bacterial) RN - 0 (Polysaccharides, Bacterial) RN - 0 (Streptococcal Vaccines) RN - 0 (Vaccines, Conjugate) SB - IM MH - Adjuvants, Immunologic/administration & dosage MH - Adult MH - Antibodies, Bacterial/blood MH - Female MH - Humans MH - Immunity, Humoral MH - *Immunization Schedule MH - Polysaccharides, Bacterial/immunology MH - Pregnancy MH - Single-Blind Method MH - Streptococcal Infections/*prevention & control MH - Streptococcal Vaccines/*administration & dosage/adverse effects/therapeutic use MH - Streptococcus agalactiae MH - Vaccines, Conjugate/administration & dosage/adverse effects/therapeutic use MH - Young Adult OTO - NOTNLM OT - Adjuvant OT - Group B streptococcus OT - Trivalent vaccine EDAT- 2016/03/02 06:00 MHDA- 2016/10/08 06:00 CRDT- 2016/03/02 06:00 PHST- 2015/11/25 00:00 [received] PHST- 2016/02/12 00:00 [revised] PHST- 2016/02/16 00:00 [accepted] PHST- 2016/03/02 06:00 [entrez] PHST- 2016/03/02 06:00 [pubmed] PHST- 2016/10/08 06:00 [medline] AID - S0264-410X(16)00215-2 [pii] AID - 10.1016/j.vaccine.2016.02.044 [doi] PST - ppublish SO - Vaccine. 2016 Apr 4;34(15):1786-91. doi: 10.1016/j.vaccine.2016.02.044. Epub 2016 Mar 5.