Transdermal vaccine delivery device having coated microprotrusions
First Claim
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1. A device for transdermally delivering an immunologically active agent, the device comprising:
- a member having a plurality of stratum corneum-piercing microprotrusions and a dry coating on said member;
said coating, before drying, comprising an aqueous solution of an amount of an immunologically active agent and a surfactant;
wherein said surfactant is present in the range of about 1 to about 30 wt % in said aqueous solution.
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Abstract
A device and method are provided for percutaneous transdermal delivery of a immunologically active agent. The agent is mixed with appropriate surfactants and dissolved in water to form an aqueous coating solution having the appropriate concentration for coating extremely tiny skin piercing elements. The coating solution is applied to the skin piercing elements using known coating techniques and then dried. The device is applied to the skin of a living animal, causing the microprotrusions to pierce the stratum corneum and deliver a immunologically effective dose of the immunologically active agent to the animal.
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25 Claims
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1. A device for transdermally delivering an immunologically active agent, the device comprising:
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a member having a plurality of stratum corneum-piercing microprotrusions and a dry coating on said member;
said coating, before drying, comprising an aqueous solution of an amount of an immunologically active agent and a surfactant;
wherein said surfactant is present in the range of about 1 to about 30 wt % in said aqueous solution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A transdermal drug delivery device comprising
a microprotrusion array have a plurality of microprotrusions; - said microprotrusions being designed to pierce the stratum corneum when said microprotrusions array is applied to a body surface;
one or more of said microprotrusions being at least partially covered with an essentially dried coating containing at least one vaccine and at least one surfactant;
said coating containing a predetermined amount of said vaccine;
wherein said predetermined amount is in the range of from about 1 microgram to about 500 micrograms of said vaccine;
said coating having been formed from a solution containing about 1 wt % to about 30 wt % of said surfactant;
said predetermined amount of said vaccine being sufficient to cause an immunological response when said vaccines is delivered transdermally; and
wherein the delivery efficiency of said immunologically active agent is greater than or equal to about 10%. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
- said microprotrusions being designed to pierce the stratum corneum when said microprotrusions array is applied to a body surface;
Specification