Safety and immunogenicity of a respiratory syncytial virus prefusion F protein (RSVPreF3) candidate vaccine in older Japanese adults: A phase I,randomized, observer-blind clinical trial |
| |
Affiliation: | 1. GSK, Avenue Flemming 20, 1300 Wavre, Belgium;2. SOUSEIKAI PS Clinic, Random Square 8th Fl, 6-18, Tenyamachi, Hakata-Ku, Fukuoka, Japan;3. GSK, Rue de L''Institut 89, 1330 Rixensart, Belgium |
| |
Abstract: | BackgroundRespiratory syncytial virus (RSV) causes lower respiratory tract infection, with a high burden of disease among adults ≥60 years. This study assessed the safety, reactogenicity, and immunogenicity of an investigational adjuvanted RSV vaccine (RSVPreF3/AS01B) in Japanese adults aged 60–80 years.MethodsForty participants were randomized to receive two doses of RSVPreF3/AS01B or the placebo, in a 1:1 ratio, two months apart, in this placebo-controlled study. Solicited administration-site and systemic adverse events (AEs) were collected within 7 days and unsolicited AEs within 30 days post-vaccination. Serious AEs (SAEs) and potential immune-mediated diseases (pIMDs) were collected throughout the study (12 months post-dose 2). RSVPreF3-specific immunoglobulin G (IgG) antibody concentrations and neutralizing antibody (nAb) titers against RSV-A were evaluated on day (D)1, D31, D61, D91 and those against RSV-B on D1, D31, D91.ResultsSolicited AEs were reported more frequently in RSVPreF3/AS01B recipients (80.0%–90.0%) than in placebo recipients (10.0%–20.0%). Two RSVPreF3/AS01B recipients experienced grade 3 solicited AEs. Rate of unsolicited AEs were similar (30.0%–35.0%) in both groups. No RSVPreF3/AS01B recipient reported SAEs/pIMDs, while one placebo recipient reported two SAEs that were unrelated to vaccination. Baseline RSVPreF3-specific IgG and RSV-A/-B nAb levels were above the assay cut-off values. In the RSVPreF3/AS01B group, RSVPreF3-specific IgG concentrations increased 12.8-fold on D31 and 9.2-fold on D91 versus baseline while nAb titers increased 7.3-fold (RSV-A) and 8.4-fold (RSV-B) on D31 and 6.3-fold (RSV-A) and 9.9-fold (RSV-B) on D91.ConclusionsThe RSVPreF3/AS01B vaccine was well tolerated and immunogenic in older Japanese adults.Clinical trial registration numberNCT04090658. |
| |
Keywords: | Respiratory syncytial virus RSV vaccine Safety Immunogenicity Older adults AE" },{" #name" :" keyword" ," $" :{" id" :" kwrd0040" }," $$" :[{" #name" :" text" ," _" :" adverse event ARI" },{" #name" :" keyword" ," $" :{" id" :" kwrd0050" }," $$" :[{" #name" :" text" ," _" :" acute respiratory infection CI" },{" #name" :" keyword" ," $" :{" id" :" kwrd0060" }," $$" :[{" #name" :" text" ," _" :" confidence intervals COP" },{" #name" :" keyword" ," $" :{" id" :" kwrd0070" }," $$" :[{" #name" :" text" ," _" :" community-onset pneumonia ELISA" },{" #name" :" keyword" ," $" :{" id" :" kwrd0080" }," $$" :[{" #name" :" text" ," _" :" enzyme-linked immunosorbent assay FTiH" },{" #name" :" keyword" ," $" :{" id" :" kwrd0090" }," $$" :[{" #name" :" text" ," _" :" first-time-in-human GMC" },{" #name" :" keyword" ," $" :{" id" :" kwrd0100" }," $$" :[{" #name" :" text" ," _" :" geometric mean concentrations GMR" },{" #name" :" keyword" ," $" :{" id" :" kwrd0110" }," $$" :[{" #name" :" text" ," _" :" geometric mean ratios GMT" },{" #name" :" keyword" ," $" :{" id" :" kwrd0120" }," $$" :[{" #name" :" text" ," _" :" geometric mean titers IgG" },{" #name" :" keyword" ," $" :{" id" :" kwrd0130" }," $$" :[{" #name" :" text" ," _" :" immunoglobulin G LRTI" },{" #name" :" keyword" ," $" :{" id" :" kwrd0140" }," $$" :[{" #name" :" text" ," _" :" lower respiratory tract infections OA" },{" #name" :" keyword" ," $" :{" id" :" kwrd0150" }," $$" :[{" #name" :" text" ," _" :" older adults PCR" },{" #name" :" keyword" ," $" :{" id" :" kwrd0160" }," $$" :[{" #name" :" text" ," _" :" polymerase chain reaction RSV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0170" }," $$" :[{" #name" :" text" ," _" :" respiratory syncytial virus RTI" },{" #name" :" keyword" ," $" :{" id" :" kwrd0180" }," $$" :[{" #name" :" text" ," _" :" respiratory tract infections SAE" },{" #name" :" keyword" ," $" :{" id" :" kwrd0190" }," $$" :[{" #name" :" text" ," _" :" serious adverse event YOA" },{" #name" :" keyword" ," $" :{" id" :" kwrd0200" }," $$" :[{" #name" :" text" ," _" :" years of age |
本文献已被 ScienceDirect 等数据库收录! |
|