Shuttle Pharmaceuticals Holdings Inc is a clinical-stage pharmaceutical company leveraging its proprietary technology to develop novel therapies designed to cure cancers. The company has one operating segment with a focus on the development of novel drug therapies, including cancer therapies, extending new applications of radiation therapy, and other drug development, including through the use of the Molecule.ai platform by the company as well as licensing the right to use Molecuile.ai to others. The company's goal is to extend the benefits of cancer treatments with surgery, radiation therapy, chemotherapy and immunotherapy. Radiation therapy (RT) is one of the effective modalities for treating cancers. Its pipeline includes: Ropidoxuridine, HDAC Inhibitors, PSMA-B, and PC-Rad Test.