Intravenous carboplatin for recurrent gliomas. A dose-escalating phase II trial.
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.
Prados
M D
MD
Department of Neurological Surgery, School of Medicine, University of California, San Francisco 94143-0112, USA.
Warnick
R E
RE
Mack
E E
EE
Chandler
K L
KL
Rabbitt
J
J
Page
M
M
Malec
M
M
D000293:Adolescent; D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000008:administration & dosage*; D001932:Brain Neoplasms / Q000188:drug therapy*; D016190:Carboplatin / Q000008:administration & dosage*; D002648:Child; D002675:Child, Preschool; D018450:Disease Progression; D004334:Drug Administration Schedule; D005260:Female; D005909:Glioblastoma / Q000188:drug therapy; D005910:Glioma / Q000188:drug therapy*; D006801:Humans; D007223:Infant; D007262:Infusions, Intravenous; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy*; D009503:Neutropenia / Q000139:chemically induced; D012074:Remission Induction; D015996:Survival Rate; D013921:Thrombocytopenia / Q000139:chemically induced
D000970:Antineoplastic Agents; D016190:Carboplatin