tetano
Editor, Senior Moderator
Vaccine. 2011 Nov 8. [Epub ahead of print]
Safety and immunogenicity of a novel nanoemulsion mucosal adjuvant W(80)5EC combined with approved seasonal influenza antigens.
Stanberry LR, Simon JK, Johnson C, Robinson PL, Morry J, Flack MR, Gracon S, Myc A, Hamouda T, Baker JR.
Source
Department of Pediatrics, Columbia University, New York, NY, United States.
Abstract
BACKGROUND:
Improving the systemic and mucosal immune response following intranasal vaccination could enhance disease protection against respiratory pathogens. We assessed the safety and immunogenicity of a novel nanoemulsion mucosal adjuvant W(80)5EC combined with approved seasonal influenza antigens.
METHODS:
This was a first-in-human Phase I study in 199 healthy adult volunteers randomized to receive a single intranasal administration of 5%, 10%, 15% or 20% W(80)5EC, combined with 4 or 10μg strain-specific Fluzone(?) HA, compared with intranasal PBS, intranasal Fluzone(?), or 15 ug strain-specific intramuscular Fluzone(?). Safety was evaluated by physical examination, laboratory parameters, symptom diaries, and adverse event reports. Serum HAI titers and nasal wash IgA were assessed at baseline as well as 28 and 60days after vaccination.
RESULTS:
W(80)5EC adjuvant combined with seasonal influenza antigens was well tolerated without safety concerns or significant adverse events. The highest dose of 20% W(80)5EC combined with 10μg strain-specific HA elicited clinically meaningful systemic immunity based on increases in serum HAI GMT and ≥70% seroprotection for all 3 influenza strains, as well as a rise in antigen-specific IgA in nasal wash specimens.
CONCLUSIONS:
W(80)5EC adjuvant was safe and well tolerated in healthy adult volunteers and elicited both systemic and mucosal immunity following a single intranasal vaccination.
Copyright ? 2011. Published by Elsevier Ltd.
PMID:
22079079
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/22079079
Safety and immunogenicity of a novel nanoemulsion mucosal adjuvant W(80)5EC combined with approved seasonal influenza antigens.
Stanberry LR, Simon JK, Johnson C, Robinson PL, Morry J, Flack MR, Gracon S, Myc A, Hamouda T, Baker JR.
Source
Department of Pediatrics, Columbia University, New York, NY, United States.
Abstract
BACKGROUND:
Improving the systemic and mucosal immune response following intranasal vaccination could enhance disease protection against respiratory pathogens. We assessed the safety and immunogenicity of a novel nanoemulsion mucosal adjuvant W(80)5EC combined with approved seasonal influenza antigens.
METHODS:
This was a first-in-human Phase I study in 199 healthy adult volunteers randomized to receive a single intranasal administration of 5%, 10%, 15% or 20% W(80)5EC, combined with 4 or 10μg strain-specific Fluzone(?) HA, compared with intranasal PBS, intranasal Fluzone(?), or 15 ug strain-specific intramuscular Fluzone(?). Safety was evaluated by physical examination, laboratory parameters, symptom diaries, and adverse event reports. Serum HAI titers and nasal wash IgA were assessed at baseline as well as 28 and 60days after vaccination.
RESULTS:
W(80)5EC adjuvant combined with seasonal influenza antigens was well tolerated without safety concerns or significant adverse events. The highest dose of 20% W(80)5EC combined with 10μg strain-specific HA elicited clinically meaningful systemic immunity based on increases in serum HAI GMT and ≥70% seroprotection for all 3 influenza strains, as well as a rise in antigen-specific IgA in nasal wash specimens.
CONCLUSIONS:
W(80)5EC adjuvant was safe and well tolerated in healthy adult volunteers and elicited both systemic and mucosal immunity following a single intranasal vaccination.
Copyright ? 2011. Published by Elsevier Ltd.
PMID:
22079079
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/22079079