GPT and neoplasm: In a previous study involving this carcinogen-induced mouse NMIBC model, S.C. ALT-803 was found to reduce the tumor burden by 37%, which is a higher reduction than that obtained with intravesical ALT-803 (28%) or intravesical BCG (28%), suggesting that the efficacy of S.C. ALT-803 is better than that of intravesical ALT-803 or BCG (13).