Hepatoblastoma (HB) is the most frequent pediatric form of liver cancer, generally arising in young children (<3yo). Despite being a rare tumor (1.8 in 1,000,000 children/year), HB rates are on the rise and therapeutic options are limited to chemotherapy. Chemotherapy (i.e. cisplatin) is given to patients without any consideration to a specific mutation within tumors and toxicity is significant. Here we seek to advance a novel therapeutic candidate for HB that has been optimized to selectively kill cancer cells with specific mutations, while sparing normal hepatocites.