The results showed that co-injection of [D-Phe6,Leu-NHEt13,des-Met14]Bombesin(6–14) reduced the average tumor uptake values of [177Lu]Lu-TacsBOMB5, [177Lu]Lu-LW01110, and [177Lu]Lu-LW01142 by 71%, 73%, and 62%, respectively. The gene discussed is GRP; the disease is neoplasm.