RG-7603 is primarily utilized in the field of medical research, particularly in the study of cancer therapies. It functions as a selective inhibitor, targeting specific pathways involved in tumor growth and progression. Researchers employ RG-7603 to investigate its potential in inhibiting the proliferation of cancer cells, especially in cases where conventional treatments have shown limited efficacy. Its application extends to preclinical studies, where it is used to assess its effectiveness in combination with other therapeutic agents, aiming to enhance overall treatment outcomes. Additionally, RG-7603 is explored for its role in reducing resistance to certain cancer drugs, offering a promising avenue for developing more robust and effective cancer treatment regimens.