However, at 1 h post-injection both [68Ga]Ga-[Hse7]RM2 and [68Ga]Ga-[Bta8]RM2 displayed slightly higher tumor-to-pancreas and tumor-to-intestine ratios, rendering homoserine and β-(3-benzothienyl)alanine potential options for the modification of GRPR ligands with regard to imaging properties. Here, GRPR is linked to neoplasm.