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  • Title: Intravenous carboplatin for recurrent gliomas. A dose-escalating phase II trial.
    Author: Prados MD, Warnick RE, Mack EE, Chandler KL, Rabbitt J, Page M, Malec M.
    Journal: Am J Clin Oncol; 1996 Dec; 19(6):609-12. PubMed ID: 8931682.
    Abstract:
    In a Phase II trial, 63 evaluable patients with recurrent glioma received i.v. infusions of carboplatin every 3 weeks beginning at a dose of 400 mg/m2. The dose was increased by 50 mg/m2 at each subsequent infusion until the maximum tolerated dose reached, as defined by a platelet count < 25,000/mm3 or an absolute neutrophil count (ANC) < 500/mm3. Treatment was then resumed at the previous dose level and continued until tumor progression occurred. There were 43 men and 20 women studied (mean age, 41 years; range, 6 months to 70.6 years). The combined response and stabilization rate was 29% for 31 patients with glioblastoma and 71.9% for 32 patients with other tumors; median time to tumor progression was 8.2 and 20.3 weeks and median survival was 25.9 and 58.3 weeks, respectively. Twenty patients had level 4 platelet toxicity and nine had level 4 ANC toxicity. Most tumors progressed before the maximum tolerated dose was reached. These results were not better than those from a previous trial of carboplatin at an initial dose of 350 mg/m2, which was escalated by 25 mg/ m2 after every two infusions. Therefore, an optimal dosing schedule was not achieved in this trial.
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