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The effects of two different cisplatin-based chemotherapy regimens on advanced non-small cell lung cancer
C H Chen1, C T Yang, W J Chang
1First Division of Pulmonary and Critical Care Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan, R.O.C.
Background:
Many different cisplatin-based regimens have been used on advanced non-small cell lung cancer (NSCLC) in previous studies but there have been few such references in Taiwan. In this study, we evaluated the efficacy and toxicity of two different regimens including 5-Fluorouracil, Leucovorin, Etoposide and cisPlatin (FLEP) and cisPlatin, Etoposide and Mitomycin (PEM) in the treatment of patients with advanced NSCLC.
Methods:
We retrospectively analyzed the records of 44 patients with NSCLC who met the selection criteria from February 1995 through April 1998. All of them were confirmed, using histologic tests, that they were in advanced stages, i.e. stage IIIB or IV. Twenty-two patients received FLEP and 22 patients received PEM.
Results:
Three patients with FLEP therapy and 3 patients with PEM therapy had partial response. No patient had complete response. The response rate was 13.6% in both groups, respectively. The median survival was 160 +/- 30 (median + SD) days for patients with FLEP therapy and 263 +/- 104 days for patients with PEM therapy. The factors that were associated with longer survival in all patients included response (Stable Disease vs Disease Progression p = 0.004, Partial Response vs Disease Progression p = 0.047) and regimen of chemotherapy (PEM vs FLEP p = 0.008). The major clinically significant toxicity was myelosupression.
Conclusion:
The responses to regimens, FLEP and PEM, were low in our study groups that might be due to the low dose of cisplatin and etoposide in our regimens. The patients with response to chemotherapy and PEM therapy had longer median survival than those who underwent FLEP therapy.