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  • Title: Phase I trial of concurrent chemoradiation with weekly nedaplatin in patients with squamous cell carcinoma of the uterine cervix.
    Author: Yoshinaga K, Niikura H, Ogawa Y, Nemoto K, Nagase S, Takano T, Ito K, Yaegashi N.
    Journal: Gynecol Oncol; 2007 Jan; 104(1):36-40. PubMed ID: 16889822.
    Abstract:
    OBJECTIVE: This phase I clinical trial for cervical carcinoma had three objectives: to evaluate the toxicity of a concurrent chemoradiation regimen featuring weekly nedaplatin; to determine the recommended dose of nedaplatin for a phase II concurrent chemoradiation trial; and to evaluate the formula for predicting area under the curve data for nedaplatin through pharmacokinetic studies. PATIENTS AND METHODS: Twelve patients with locally advanced squamous cell carcinoma of the uterine cervix were enrolled. Nedaplatin was administered once a week for 6 weeks. The starting dose of nedaplatin was 25 mg/m(2)/week, with increments of 5 mg/m(2)/week planned for each dose level. Three cases were enrolled at each of the dose levels. Radiation therapy was delivered with both external beam teletherapy and intracavitary brachytherapy with HDR-RALS. Volunteering patients underwent pharmacokinetics studies during the second course. RESULTS: Nedaplatin at a dose of 25, 30, and 35 mg/m(2) was safely administered for three cases at each dose level. At a dose of 40 mg/m(2), however, all three cases had Grade 3 neutropenia. Observed area under the curve value and predicted value was closely correlated, with differences between the two area under the curve values within 25%. All 12 cases achieved a clinical complete response, as evaluated with RECIST. CONCLUSIONS: Our recommended dose for a phase II trial of concurrent chemoradiation with weekly nedaplatin is 35 mg/m(2). The formula can predict unbound concentration of nedaplatin based on area under the curve within 25% error.
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