LOS ANGELES--(BUSINESS WIRE)--CytRx Corporation (NASDAQ: CYTR), a biopharmaceutical research and development company specializing in oncology, announced that an in vivo trial investigating aldoxorubicin, its tumor-targeting conjugate of the widely used chemotherapeutic agent doxorubicin, in combination with unconjugated doxorubicin, demonstrated positive results and provided the basis for the Company’s current evaluation of the combination therapy in cancer patients with advanced solid tumors in a Phase 1b clinical trial.