We are a clinical stage biopharmaceutical company focused on developing and commercializing a pipeline of novel, proprietary therapeutics that have the potential to transform radiotherapy in cancer. We leverage our expertise in superoxide dismutase mimetics to design drugs to reduce normal tissue toxicity from radiotherapy and to increase the anti-cancer efficacy of radiotherapy. Our lead product candidate, GC4419, is a potent and highly selective small molecule dismutase mimetic we are initially developing for the reduction of severe oral mucositis (SOM). SOM is a common, debilitating complication of radiotherapy in patients with head and neck cancer. The U.S. Food and Drug Administration has granted Breakthrough Therapy Designation to GC4419 for the reduction of the duration, incidence and severity of SOM induced by radiotherapy. GC4419 is currently in Phase 3 clinical testing. We believe GC4419, which to date is not approved for any indication, has the potential to be the first FDA-approved drug and the standard of care for the reduction of SOM in patients with head and neck cancer receiving radiotherapy, and we plan to further evaluate its use in other radiotherapy-induced toxicities.