LOS ANGELES--(BUSINESS WIRE)--CytRx Corporation (NASDAQ:CYTR), a biopharmaceutical research and development company engaged in the development of high-value human therapeutics, has filed a report with the U.S. Food and Drug Administrations (FDA) in response to the Agency’s partial clinical hold on the Company’s Phase 2b efficacy clinical trial with its molecular chaperone regulator drug candidate arimoclomol for the treatment of amyotrophic lateral sclerosis (ALS or Lou Gehrig’s disease).