Neurotensin analogs selective for neurotensin receptor subtype 2 are described. These include hexapeptides (NT(8-13)) and pentapeptides (NT(9-13)) having a D-3,1-naphthyl-alanine, D-3,2-naphthyl-alanine, an alanine derivative such as cyclohexylalanine, or 1,2,3,4-tetrahydroisoquinoline at position 11. Methods of treating pain by administering these neurotensin analogs are also described.
PEPTIDE ANALOGS THAT ARE POTENT AND SELECTIVE FOR HUMAN NEUROTENSIN RECEPTOR SUBTYPE 2