PMID: 3383977Apr 1, 1988Paper

Phase I study of the antifolate N10-propargyl-5,8-dideazafolic acid, CB 3717

European Journal of Cancer & Clinical Oncology
C SessaF Cavalli

Abstract

The thymidylate synthase (TS) inhibitor CB 3717 was administered intravenously to 24 adult patients as a single bolus repeated every 3-4 weeks. The doses were escalated from 50 to 400 mg/m2. At the highest level, hydration and urinary alkalinization were routinely performed. A greater than 20% decrease of the creatinine clearance value occurred in 35% of the cycles performed at 400 mg/m2, a dose which could be recommended for phase II studies. Hepatic toxicity, represented by an increase of the glutamic pyruvic transaminase (GPT) plasma levels, occurred in 70% of the patients after the first cycle. GPT peak levels were neither related to the dose nor to the peak drug plasma concentrations or AUC values in the dose range from 225 to 400 mg/m2. Malaise, reported after 46% of the cycles, was the most disturbing side-effect and its occurrence was statistically correlated with the degree of elevation of GPT. A suggestion of antitumor activity was reported for dosages of 300 and 400 mg/m2 in three patients with ovarian cancer refractory to cisplatin. Further clinical evaluations of TS inhibitors rely on the development of more water soluble and less hepato- and nephrotoxic agents.

References

Jan 1, 1985·Cancer Chemotherapy and Pharmacology·D L AlisonA H Calvert
Feb 1, 1983·Computer Programs in Biomedicine·G S LandrianiM Rocchetti
Jan 1, 1981·Cancer·A B MillerA Winkler

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Citations

Jan 1, 1991·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·R J MaxwellJ R Griffiths
Jan 1, 1994·Cancer Chemotherapy and Pharmacology·B M O'ConnorM S Rhee
Jan 1, 1989·Advances in Enzyme Regulation·K R HarrapA H Calvert

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