Phase I study of hycanthone.
Hycanthone was given to 15 patients with metastatic cancer in order to determine the maximum tolerable dose. The drug was administered in 5-day courses at 3-week intervals. The starting dose was 30 mg/m2/day and the highest dose level reached was 90 mg/m2/day. The most common (13 patients) side effect was nausea and/or vomiting. The dose-limiting toxicity was toxic hepatitis manifested as elevation in serum transaminases in eight of 15 patients and an increase in serum bilirubin in three patients. Hepatotoxicity was dose-related and was observed in two of 25 courses given at the dose level of less than or equal to 70 mg/m2 compared to seven of nine courses given at the dose level of greater than or equal to 80 mg/m2. Because of an unacceptable incidence of hepatotoxicity at higher doses, 70 mg/m2/day x 5 appears to be a safe dose for phase II studies.
D000328:Adult; D000368:Aged; D056486:Chemical and Drug Induced Liver Injury / Q000209:etiology; D002986:Clinical Trials as Topic; D004334:Drug Administration Schedule; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D006826:Hycanthone / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000188:drug therapy*; D013892:Thioxanthenes / Q000627:therapeutic use*
D013892:Thioxanthenes; D006826:Hycanthone