Used in research to study gastrin-releasing peptide (GRP) receptors, which are overexpressed in certain cancers such as prostate, breast, and lung tumors. Acts as a receptor-targeting agent for imaging and potential therapeutic applications. Labeled with radioactive isotopes, it helps in tumor detection via PET or SPECT imaging. Also explored for delivering cytotoxic agents selectively to cancer cells expressing GRP receptors. Stable and selective binding makes it valuable in oncology and molecular imaging studies.