| abstract |
The subject of the invention is somatostatin peptides carrying at least one chelating group for a detectable element, said chelating group being linked to an amino group of said peptide, and said amino group having no significant binding affinity for receptors for somatostatin, in free form or in salt form, complexed with a detectable element. These compounds are, as such, useful as pharmaceutical specialties, for example as radiopharmaceutical specialties, for in vivo imaging of tumors positive for somatostatin receptors, or for treatment. |