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Randomized phase III trial comparing cisplatin-etoposide to carboplatin-paclitaxel in advanced or metastatic non-small cell lung cancer.

BACKGROUND
The present study was designed to evaluate the efficacy and safety of the regimen of carboplatin plus paclitaxel (investigational arm) versus the reference regimen of cisplatin plus etoposide for the treatment of advanced or metastatic non-small-cell lung cancer.


PATIENTS AND METHODS
A total of 369 patients were enrolled, 179 on arm A (cisplatin 75 mg/m2 and etoposide 100 mg/m2) and 190 on arm B (carboplatin AUC=6 mg/ml min and paclitaxel 225 mg/m2), with cycles repeated every 3 weeks. The arms were well balanced with respect to age, performance status, weight loss, stage of disease and disease measurability. However, significantly more women were randomized to arm A than to arm B (P=0.039).


RESULTS
The objective response rate (ORR) was 15% on arm A compared with 23% on arm B (P=0.061). Median survival time, time to progression and 1-year survival rates for arms A and B were 274 days and 233 days (P=0.086), 111 days and 121 days (P=0.877), and 37% and 32%, respectively. The most prevalent toxicities were neutropenia and leukopenia and they occurred at a higher rate in arm A than in arm B.


CONCLUSION
There was no statistically significant survival advantage for carboplatin-paclitaxel compared with cisplatin-etoposide. However, there was an overall benefit in quality of life with the carboplatin-paclitaxel regimen.