PMID- 25715157 OWN - NLM STAT- MEDLINE DCOM- 20151222 LR - 20240323 IS - 2164-554X (Electronic) IS - 2164-5515 (Print) IS - 2164-5515 (Linking) VI - 11 IP - 3 DP - 2015 TI - Safety and immunogenicity of an investigational 4-component Staphylococcus aureus vaccine with or without AS03B adjuvant: Results of a randomized phase I trial. PG - 620-31 LID - 10.1080/21645515.2015.1011021 [doi] AB - We assessed the safety, reactogenicity and immunogenicity of a staphylococcal vaccine combining capsular polysaccharides types 5 and 8 (CPS5/8), conjugated to tetanus toxoid (TT), with mutated detoxified alpha-toxin (AT) and clumping factor A (ClfA). In this phase I, randomized, placebo-controlled, observer-blind trial (NCT01160172), 88 healthy 18- to 40-year-olds received CPS5-TT/CPS8-TT/AT/ClfA vaccine (5/5/10/10 mug or 10/10/30/30 mug dose, each with or without AS03B adjuvant) or saline, at months 0, 1, 6. Solicited and unsolicited adverse events (AEs) were recorded for 7 and 30 d post-vaccination, respectively; potential immune-mediated diseases (pIMDs) and serious AEs (SAEs) were recorded throughout the study. Humoral and antigen-specific CD4(+)/CD8(+) T-cell immunity were assessed from Day (D) 0 to D540 post-vaccination. The most frequently reported solicited local and general AEs were pain (78.6%-100% of subjects), fatigue (36.4%-93.3% of subjects post-dose 1-2) and headache (20%-44.4% of subjects post-dose 3). Overall, 4 SAEs and 2 potential immune-mediated diseases (pIMDs) (none fatal or vaccine-related) were reported. For each antigen, pre-vaccination seropositivity rates were high (85.7%-100%) and geometric mean concentrations (GMCs) in vaccine recipients sharply increased from D0 to D14, then plateaued to study end. Exploratory group comparisons suggested higher GMCs with higher dosage, without AS03B effect. Vaccine-induced antibodies were functional (CPS5 opsonophagocytic assays, and AT/ClfA inhibition assays). AT- and ClfA-specific CD4(+) T-cells with Th0/Th1 cytokine profile were induced at low levels (median <0.05%) by each formulation (intracellular cytokine staining). In conclusion, no safety concerns were identified and each vaccine formulation induced robust humoral immune responses after the first vaccine dose. FAU - Levy, Jack AU - Levy J AD - a Saint-Pierre University Hospital ; Brussels , Belgium. FAU - Licini, Laurent AU - Licini L FAU - Haelterman, Edwige AU - Haelterman E FAU - Moris, Philippe AU - Moris P FAU - Lestrate, Pascal AU - Lestrate P FAU - Damaso, Silvia AU - Damaso S FAU - Van Belle, Pascale AU - Van Belle P FAU - Boutriau, Dominique AU - Boutriau D LA - eng SI - ClinicalTrials.gov/NCT01160172 PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Hum Vaccin Immunother JT - Human vaccines & immunotherapeutics JID - 101572652 RN - 0 (Adjuvants, Immunologic) RN - 0 (Antibodies, Bacterial) RN - 0 (Drug Combinations) RN - 0 (Placebos) RN - 0 (Polysorbates) RN - 0 (Staphylococcal Vaccines) RN - 7QWM220FJH (Squalene) RN - A7YT618XBV (AS03 adjuvant) RN - H4N855PNZ1 (alpha-Tocopherol) SB - IM MH - Adjuvants, Immunologic/administration & dosage MH - Adolescent MH - Adult MH - Antibodies, Bacterial/blood MH - CD4-Positive T-Lymphocytes/immunology MH - CD8-Positive T-Lymphocytes/immunology MH - Drug Combinations MH - Drug-Related Side Effects and Adverse Reactions/epidemiology/pathology MH - Female MH - Healthy Volunteers MH - Humans MH - Male MH - Placebos/administration & dosage MH - Polysorbates/administration & dosage MH - Single-Blind Method MH - Squalene/administration & dosage MH - Staphylococcal Infections/immunology/*prevention & control MH - Staphylococcal Vaccines/*adverse effects/*immunology MH - Young Adult MH - alpha-Tocopherol/administration & dosage PMC - PMC4514337 OTO - NOTNLM OT - AEs OT - According-to-Protocol; CIs OT - Confidence Intervals; ClfA OT - Panton-Valentine leucocidin; rEPA OT - Staphylococcus aureus OT - adjuvant OT - adverse events; AT OT - capsular polysaccharides types 5 and 8; GMC OT - clumping factor A; CPS5 and 8 OT - geometric mean concentration; GMT OT - geometric mean titer; ICS OT - immunogenicity OT - interferon; IL OT - interleukin; LNR OT - intracellular cytokine staining; IFN OT - laboratory normal range; MRSA OT - methicillin-resistant S. aureus; OPA OT - opsonophagocytic assay; pIMDs OT - potential immune-mediated diseases: PVL OT - recombinant exoprotein A from Pseudomonas aeruginosa; SAEs OT - safety OT - serious adverse events; TT OT - tetanus toxoid OT - vaccine OT - alpha-toxin; ATP EDAT- 2015/02/26 06:00 MHDA- 2015/12/23 06:00 PMCR- 2016/02/03 CRDT- 2015/02/26 06:00 PHST- 2015/02/26 06:00 [entrez] PHST- 2015/02/26 06:00 [pubmed] PHST- 2015/12/23 06:00 [medline] PHST- 2016/02/03 00:00 [pmc-release] AID - 1011021 [pii] AID - 10.1080/21645515.2015.1011021 [doi] PST - ppublish SO - Hum Vaccin Immunother. 2015;11(3):620-31. doi: 10.1080/21645515.2015.1011021.