Transdermal insulin
First Claim
Patent Images
1. An insulin analogue having the general formula III:
- ##STR4## wherein the amino acid residue designated Xaa in at least one of the positions B9,B10,B16, B26,B28,B1,B2,B18,B20,B28, or A21 and furthermore an amino acid residue designated Xaa in at least one of the positions A5,A15,A18,B3,B4,A12,A14,B22,B29 or B30 is independently substituted by Asp or Glu while any remaining Xaa designated the amino acid residue occurring in human insulin in the pertinent position, the terminal ends of the B-chain optionally being extended by one or two amino acid residues which can be chosen independently among Asp and Glu, with the proviso that it no amino acid residue designated Xaa in position A12,A14,B22,B29 or B30 is substituted, or if the terminal ends of the B-chain have not been extended, then the total number of substitutions is at least five.
0 Assignments
0 Petitions
Accused Products
Abstract
Insulin analogues have been developed which are well suited for transdermal administration by iontophoresis. The insulin analogues have a negative charge at neutral pH and a reduced tendency to association. They are prepared by altering the human insulin molecule by substituting at least two of the amino acid residues of human insulin by Glu and/or Asp at selected positions in the molecule.
-
Citations
11 Claims
-
1. An insulin analogue having the general formula III:
- ##STR4## wherein the amino acid residue designated Xaa in at least one of the positions B9,B10,B16, B26,B28,B1,B2,B18,B20,B28, or A21 and furthermore an amino acid residue designated Xaa in at least one of the positions A5,A15,A18,B3,B4,A12,A14,B22,B29 or B30 is independently substituted by Asp or Glu while any remaining Xaa designated the amino acid residue occurring in human insulin in the pertinent position, the terminal ends of the B-chain optionally being extended by one or two amino acid residues which can be chosen independently among Asp and Glu, with the proviso that it no amino acid residue designated Xaa in position A12,A14,B22,B29 or B30 is substituted, or if the terminal ends of the B-chain have not been extended, then the total number of substitutions is at least five.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
Specification