Pilot Trial of the Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor Gefitinib Plus Carboplatin and Paclitaxel in Patients With Stage IIIB or IV Non–Small-Cell Lung Cancer
2003
Purpose: Gefitinib is an oral agent that inhibits the tyrosine kinase of the epidermal growth factor receptor. In phase I trials gefitinib was well tolerated and antitumor activity was seen in pretreated non–small-cell lung cancer (NSCLC) patients. Preclinical studies indicated enhanced effects when gefitnib was added to carboplatin or paclitaxel. This pilot trial combined gefitinib with carboplatin and paclitaxel to define the toxicities of the combination and assess drug-drug interactions in untreated advanced NSCLC patients. Patients and Methods: Initially (part 1) patients were randomly assigned to receive intermittent gefitinib with cycle 1 or 2 of chemotherapy. Thereafter (part 2), the highest dose of gefitinib that was given without dose-limiting toxicity (DLT) from part 1 was administered continuously beginning with the first cycle of chemotherapy. Three sequentially enrolled cohorts received gefitinib 250 and 500 mg (intermittently) and 500 mg (continuously). Results: We treated 24 patients; nine...
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