Abstract: The present invention provides improved methods for delivery of substances into the skin. It has been discovered that delivery of substances such as nucleic acids, amino acids, amino acid derivatives, peptides and polypeptides simultaneously with abrasion of the skin enhances delivery and the biological response as compared to application of the substance to previously abraded skin.

Abstract: Improved microprotrusion abrasion devices having fluid retaining or directing patterns, and specific design parameters and method for delivery of substances into the skin. Various configurations of such devices are disclosed, including domed, channeled, patterned and stepped.

Abstract: An abrasion device and method for delivery of substances into the skin using a microabrader for delivering a substance into the skin are disclosed. An abrasion device with a cover is also disclosed. Such devices and methods can be effectively used to deliver bioactive substances into skin.

Abstract: The present invention provides improved methods for delivery of substances into the skin. It has been discovered that delivery of substances such as nucleic acids, amino acids, amino acid derivatives, peptides and polypeptides simultaneously with abrasion of the skin enhances delivery and the biological response as compared to application of the substance to previously abraded skin.

Abstract: The present invention relates to immunogenic compositions containing an immunogen and a specific combination of two or more traditional excipients. The excipients in the composition act in combination and enhance immune responses to the immunogen from a subject. The combination of excipients may be used as adjuvant in immunogenic compositions, regardless of route or target of delivery. The compositions can be administered, for example, intradermally, epidermally, transdermally, junctionally, nasally, or subcutaneously.

Abstract: An abrasion device and method for delivery of substances into the skin using a microabrader for delivering a substance into the skin are disclosed. An abrasion device with a cover is also disclosed. Such devices and methods can be effectively used to deliver bioactive substances into skin.

Abstract: The present invention relates to methods and devices for administration of vaccines and therapeutic agents into the intradermal layer of the skin. The methods of the present invention elicit increased humoral and/or cellular response as compared to conventional vaccine delivery methods, e.g., intramuscular route. Furthermore, the methods of the present invention facilitate induction of an immune response by an amount of vaccine which is otherwise insufficient for inducing an immune response when delivered via conventional vaccine routes, e.g., intramuscular route.

Abstract: The present invention relates to immunogenic compositions for intradermal delivery of an antigenic or immunogenic agent in combination with one or more excipients. The immunogenic compositions of the invention comprise an antigenic or immunogenic agent and at least one excipient which acts as an adjuvant, i.e., enhances the immune response to the antigenic or immunogenic agent, once delivered to the intradermal compartment of a subject's skin. The immunogenic compositions of the invention comprise an excipient which when administered to the intradermal compartment of skin in accordance with the invention demonstrate adjuvant activity. The immunogenic compositions of the invention have enhanced efficacy as the excipients of the composition cause an asymptomatic skin irritation and recruit antigen presenting cells to the intradermal compartment and thus enhance presentation and/or availability of the antigenic or immunogenic agent to the antigen presenting cells.

Abstract: The present invention provides improved methods for delivery of substances into the skin. It has been discovered that delivery of substances such as nucleic acids, amino acids, amino acid derivatives, peptides and polypeptides simultaneously with abrasion of the skin enhances delivery and the biological response as compared to application of the substance to previously abraded skin.

Abstract: A method for delivering a substance to the epidermal tissue of skin. The method involves simultaneously disrupting only the stratum corneum of the skin and delivering the substance to the epidermal tissue of the skin.

Abstract: An abrasion device and method for delivery of substances into the skin comprises a microabrader for delivering a substance into the skin having a base with an abrading facet, to which an abrading surface having an arrangement of microprotrusions that have at least one scraping edge is attached, mounted, or integral with and a handle attachment facet, to which a handle or other grasping device is attached or mounted.