The tumor uptake of [68Ga]Ga-SB03045 (11.8 ± 2.35 %ID/g) was comparable to that of [68Ga]Ga-FAPI-04, which was consistent with the results obtained from the FAP-binding assays, where the IC50 values of [68Ga]Ga-SB03045 and [68Ga]Ga-FAPI-04 were found to be of the same order of magnitude. The gene discussed is FAP; the disease is neoplasm.