ARN1203 is primarily utilized in the field of medical research, particularly in the study and treatment of cancer. It functions as a selective inhibitor targeting specific pathways involved in tumor growth and proliferation. By blocking these pathways, ARN1203 helps in slowing down or halting the progression of certain types of cancers. Its application is significant in preclinical studies where it aids in understanding the mechanisms of cancer cell survival and resistance to treatments. Researchers also explore its potential in combination therapies, where it may enhance the efficacy of other anticancer drugs. Additionally, ARN1203 is investigated for its role in reducing metastasis, the spread of cancer to other parts of the body, which is crucial for improving patient outcomes. Its development and testing are part of ongoing efforts to discover more effective and targeted cancer treatments.