Health & Environmental Research Online (HERO)


Print Feedback Export to File
501329 
Journal Article 
Montanide((R)) ISA 720 vaccines: quality control of emulsions, stability of formulated antigens, and comparative immunogenicity of vaccine formulations 
Miles, AP; Mcclellan, HA; Rausch, KM; Zhu, DM; Whitmore, MD; Singh, S; Martin, LB; Wu, YM; Giersing, BK; Stowers, AW; Long, CA; Saul, A 
2005 
1 
Vaccine
ISSN: 0264-410X
EISSN: 1873-2518 
23 
19 
2530-2539 
English 
15752840 
WOS:000227898800015 
Montanide (R) ISA 720 is an experimental adjuvant, formulated as water-in-oil emulsions, that induces high antibody titers in several animal species. It has been used in human vaccine trials with malaria and HIV vaccines. The heightened response is likely due, in part, to the formation of a depot at the injection site. However, post-formulation modifications were seen with seven proteins tested during storage of ISA 720 formulations at 37 degrees C for 1 week and two proteins stored longer at 4 degrees C. Potency studies in mice. in which the stored vaccines were diluted into placebo emulsions for appropriate dosing, indicated that this instability could lead to loss of immunogenicity in the post-injection depot, limiting the allowable storage time of preformed vaccines. We describe point-of-injection formulation for ISA 720 vaccines that meets the requirement for in vitro stability. For preformed vaccines, addition of glycine or glycylglycine prevented antigen modification on storage at 37 degrees C, providing a potential way of stabilizing antigen/ISA 720 formulations for in vitro storage and the post-injection depot. Published by Elsevier Ltd. 
Montanide ISA 720; adjuvant; vaccine recombinant protein; plasmodium-falciparum malaria; phase-i trial; adjuvant; spf66; efficacy; safety; oil; volunteers