Submicron emulsions as vaccine adjuvants
First Claim
1. A vaccine adjuvant composition of an oil-in-water submicron emulsion consisting essentially of about 0.5 to 50% of a first component of an oil, about 0.1 to 10% of a second component of an emulsifier, wherein the emulsifier is a phospholipid compound or a mixture of phospholipids selected from the group consisting of phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, phosphatidylglycerol, phosphatidic acid, sphingomyelin and cardiolipin, about 0.05 to 5% of a non-ionic surfactant, about 0.00001, to 1% of an immunogen, and an aqueous continuous phase, said submicron emulsion having a mean droplet size in the range of between about 0.03 and 0.5 μ
- m, which composition is substantially free of added amounts of muramyl peptides or their lipophilic derivatives.
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Abstract
A vaccine adjuvant composition of an oil-in-water submicron emulsion that has about 0.5 to 50% of a first component of an oil, about 0.1 to 10% of a second component of an emulsifier, about 0.05 to 5% of a nonionic surfactant, about 0.00001 to 1% of an immunogen, and an aqueous continuous phase. This submicron emulsion has a mean droplet size in the range of between about 0.03 and 0.5 μm, and preferably 0.05 and 0.2 μm.
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25 Claims
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1. A vaccine adjuvant composition of an oil-in-water submicron emulsion consisting essentially of about 0.5 to 50% of a first component of an oil, about 0.1 to 10% of a second component of an emulsifier, wherein the emulsifier is a phospholipid compound or a mixture of phospholipids selected from the group consisting of phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, phosphatidylglycerol, phosphatidic acid, sphingomyelin and cardiolipin, about 0.05 to 5% of a non-ionic surfactant, about 0.00001, to 1% of an immunogen, and an aqueous continuous phase, said submicron emulsion having a mean droplet size in the range of between about 0.03 and 0.5 μ
- m, which composition is substantially free of added amounts of muramyl peptides or their lipophilic derivatives.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
Specification