Tozasertib is primarily used in cancer research and treatment, particularly targeting certain types of leukemia and solid tumors. It functions as an Aurora kinase inhibitor, which helps in disrupting cell division and growth in cancer cells. This makes it a potential candidate for therapies aimed at stopping the proliferation of malignant cells. Researchers are exploring its efficacy in combination with other drugs to enhance its anti-cancer effects. Additionally, it is being studied for its role in overcoming drug resistance in various cancer treatments, offering hope for more effective management of aggressive cancers.