FAP and neoplasm: In biodistribution studies in mice bearing HT-1080 FAP-expressing tumors, comparison with [68Ga]Ga-FAPI-46 showed significantly a higher tumor uptake and tissue-to-blood ratio for [68Ga]Ga-OncoFAP at 1 h p.i., with the parameters at 3 h p.i. becoming similar between the two tracers.