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Last Updated: April 23, 2024

Claims for Patent: 7,009,037


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Summary for Patent: 7,009,037
Title:Modified HIV-1gag p17 peptide and immunogenic composition
Abstract: The present invention comprises novel and modified peptides capable of inducing a HIV-1 specific immune response without antagonizing the cytotoxic T-cell activity in order to achieve an effective prophylactic and therapeutic vaccine against HIV. The peptides are based on conserved regions of HIV gag p17 and p24 proteins. Antigens in free- or carrier-bound form comprising at least one of the said peptides, vaccine compositions containing at least one of the antigens, immunoassay kits and a method of detecting antibodies induced by HIV or HIV specific peptides using such antigens, are described.
Inventor(s): Sorensen; Birger (Skien, NO)
Assignee: Bionor Immuno AS (Gulset, NO)
Application Number:10/129,331
Patent Claims:1. An isolated HIV-1 gag p17 peptide comprising the amino acid sequence of SEQ ID NO: 3, wherein the terminal ends of the sequence may be free carboxyl- or amino groups, amides, acyls, acetyls or salts thereof and/or the sequence is immobilized to a solid support.

2. An antigen comprising at least one peptide according to claim 1.

3. An immunogenic composition comprising the antigen according to claim 2 with a pharmaceutically acceptable diluent and optionally an adjuvant, carrier and/or vehicle and optionally additional immunostimulatory compound(s).

4. The immunogenic composition according to claim 3, wherein the antigen comprises the peptides of the SEQ ID NO: 3, SEQ ID NO: 6, SEQ ID NO: 11 and SEQ ID NO: 14.

5. The immunogenic composition according to claim 3, wherein the antigen comprises peptides that are dissolved in a sterile water solution and the optional immunostimulatory compound is a granulocyte macrophage colony stimulating factor.

6. The immunogenic composition according to claim 3, wherein the composition comprises an adjuvant selected from the group consisting of Monophosphoryl Lipid A (MPL.RTM.), Freund's complete adjuvant, Freund's incomplete adjuvant and aluminum hydroxide.

7. The immunogenic composition according to claim 2, wherein the antigen is formulated as a lipopeptide and/or a liposome formulation.

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