Phase I trial and pharmacokinetics of a daily x 5 schedule of 3-deazauridine. 1982

P J Creaven, and R L Priore, and A Mittelman, and S Bruno, and E S Henderson, and Y M Rustum, and J K Solomon

The uridine analog 3-deazauridine has been given to 19 patients in a phase I and pharmacokinetic study. Only mild toxicity was seen at doses less than 1200 mg/m2/day for 5 days. At a dose of 1200 mg/m2/day x 5, leukopenia (mean wbc count nadir of 2650/mm3) was seen in nine of 12 patients and thrombocytopenia (mean platelet count nadir of 47,000/mm3) in five of 12 patients. Nausea and vomiting and oral toxicity were each seen in two patients, and diarrhea and skin toxicity occurred in one patient each. Pharmacokinetic studies indicate a biphasic plasma decay with a beta-half-life of 6.9 hours and urinary excretion, mostly of unchanged drug, as the most important route for drug elimination. A dose of 1200 mg/m2/day x 5 is recommended for phase II studies and great caution is advised in administering the drug in the presence of renal impairment.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D007970 Leukopenia A decrease in the number of LEUKOCYTES in a blood sample below the normal range (LEUKOCYTE COUNT less than 4000). Leukocytopenia,Leukocytopenias,Leukopenias
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D004341 Drug Evaluation Any process by which toxicity, metabolism, absorption, elimination, preferred route of administration, safe dosage range, etc., for a drug or group of drugs is determined through clinical assessment in humans or veterinary animals. Evaluation Studies, Drug,Drug Evaluation Studies,Drug Evaluation Study,Drug Evaluations,Evaluation Study, Drug,Evaluation, Drug,Evaluations, Drug,Studies, Drug Evaluation,Study, Drug Evaluation
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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