Abstract: The present invention relates to novel C-terminal truncated fragments and novel N-terminal modified analogues of gastric inhibitory polypeptide as well as various GIP analogues with a reduced peptide bond or alterations of the amino acids close to the dipeptidyl peptidase IV (DPIV)-specific cleavage site providing improved DPIV-resistance and prolonged half-life. Further the invention relates to novel analogs with different linkers between potential receptor binding sites of GIP. The compounds of the present invention and their pharmaceutically acceptable salts are useful in treating GIP-receptor mediated conditions, such as non-insulin dependent diabetes mellitus and obesity.

Abstract: The present invention relates to novel C-terminal truncated fragments and novel N-terminal modified analogues of gastric inhibitory polypeptide as well as various GIP analogues with a reduced peptide bond or alterations of the amino acids close to the dipeptidyl peptidase IV (DPIV)-specific cleavage site providing improved DPIV-resistance and prolonged half-life. Further the invention relates to novel analogs with different linkers between potential receptor binding sites of GIP.