Shuttle Pharmaceuticals Holdings, Inc. Common Stock

Shuttle Pharmaceuticals Holdings, Inc. is a clinical stage pharmaceutical company, which engages in the development of novel therapies for cancer. The company is headquartered in Gaithersburg, Maryland and currently employs 2 full-time employees. The company went IPO on 2022-08-31. Its product candidates include Ropidoxuridine, a Phase II, clinical-stage radiation sensitizer, a platform of HDAC inhibitors (SP-1-161, SP-2-225 and SP-1-303), and two preclinical, prostate cancer-oriented diagnostics assets: PC-RAD Test, a blood test to predict clinical response to radiation therapy and PSMA-B ligand for potential use as a theranostic agent. Ropidoxuridine (IPdR) is for use in combination with RT to treat brain tumors (glioblastoma) and sarcomas. SP-1-161 is a candidate lead of compounds demonstrating activation of the ATM gene product (mutated in Ataxia-Telangiectasia). SP-2-225 is a candidate lead of compounds demonstrating Class II (HDAC6) selective inhibition. SP-1-303 is a candidate Class I HDAC inhibitor with preferential efficacy against ER positive cancers.