Dose escalation study of irinotecan combined with carboplatin for advanced non-small-cell lung cancer.
From December 1994 to July 1997, we conducted a dose escalation study of irinotecan combined with carboplatin in 17 patients with advanced non-small-cell lung cancer (NSCLC) to determine the maximum tolerated dose and the dose-limiting toxicities. Irinotecan was administered intravenously over 90 min on days 1, 8 and 15, with carboplatin given at an area under the concentration-time curve dose of 5 mg/ml x min (calculated using Calvert's formula) on day 1. The starting dose of irinotecan was 30 mg/m2 and dose escalation was done in 10-mg/m2 increments. Treatment was repeated at 28-day intervals for at least two cycles. The dose-limiting toxicities were neutropenia and thrombocytopenia, since three out of five patients given 60 mg/m2 of irinotecan developed grade 4 neutropenia and thrombocytopenia. The overall response rate was 35.3%. The median survival time and the 1-year survival rate were 10.5 months and 35.3%, respectively. The maximum tolerated dose of irinotecan with this regimen was 60 mg/m2, while 50 mg/m2 can be recommended for future use. Further studies of this combination in advanced NSCLC are warranted.
Takeda
K
K
Department of Pulmonary Medicine, Osaka City General Hospital, Japan. kkk-take@ga2.so-net.ne.jp
Negoro
S
S
Takifuji
N
N
Nitta
T
T
Yoshimura
N
N
Terakawa
K
K
Fukuoka
M
M
D000328:Adult; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000009:adverse effects* / Q000627:therapeutic use*; D002166:Camptothecin / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives; D016190:Carboplatin / Q000008:administration & dosage / Q000009:adverse effects; D002289:Carcinoma, Non-Small-Cell Lung / Q000188:drug therapy*; D004305:Dose-Response Relationship, Drug; D005260:Female; D006402:Hematologic Diseases / Q000139:chemically induced; D006801:Humans; D000077146:Irinotecan; D008175:Lung Neoplasms / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged
D000077146:Irinotecan; D016190:Carboplatin; D002166:Camptothecin