[Phase I study of a new antineoplastic agent, cis-diamminedichloroplatinum (II)]

Phase I study of cis-diamminedichloroplatinum(II) (CIS-DDP) was performed in 7 institution's clinical group using 40 patients with histologically proven urologic and gynecologic malignancies. The most characteristic adverse effects were nausea, vomiting, and anorexia. With the cessation of administration they disappeared within one or two days. Manifestation of hematopoietic and renal toxicities were found low. Hepatotoxicities were slight. In this study there were no cases who showed hearing disturbances and tinnitus, which were reported in rather high percentages. Acceptable doses of CIS-DDP for single and 5 days' consecutive administration were estimated 50 and 20 mg/m2/day respectively.