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  • Title: Postoperative adjuvant chemotherapy for stage I non-small cell lung cancer.
    Author: Park JH, Lee CT, Lee HW, Baek HJ, Zo JI, Shim YM.
    Journal: Eur J Cardiothorac Surg; 2005 Jun; 27(6):1086-91. PubMed ID: 15896623.
    Abstract:
    OBJECTIVE: Surgery constitutes the mainstay of treatment in stage I non-small cell lung cancer (NSCLC). However, a significant fraction of patients after surgical resection die mainly due to systemic relapse. Nonetheless, the best adjuvant treatment to improve survival and decrease relapse rate remains as an ever controversial issue. Therefore, we conducted a randomized trial to determine whether postoperative adjuvant chemotherapy is beneficial in prolonging survival and decreasing recurrence in patients with completely resected stage I NSCLC. METHODS: It was designed as a randomized, prospective two-armed study with surgery only (control group, 59 patients) versus surgery plus adjuvant MVP (mitomycin C, vinblastin and cisplatin) chemotherapy (study group, 59 patients). RESULTS: Data for all the patients were complete. Twenty-four patients in the control group and nine patients in the study group experienced tumor recurrence during the follow-up. Neither histological type nor surgical extent correlated with recurrence. However, the addition of adjuvant MVP chemotherapy could decrease the rate of recurrence and the incidence of cancer-related death after surgery in the patients of stage I NSCLC (P<0.05). We followed up at least 5 years, and the duration of mean follow-up was 7.3 years. The rates of the loco-regional and distant metastases were 3.4 and 40.7% in the control group, and 3.4 and 11.9% in the study group, respectively. The 5- and 10-year survival rates were 74.6 and 56.3% in the control group, and 81.4 and 65.0% in the study group, respectively (P=0.19, log-rank test). The 5- and 10-year disease-free survival rates were 64.8 and 54.8% in the control group, and 88.8 and 76.8% in the study group, respectively (P=0.002, log-rank test). CONCLUSIONS: Our results suggest that the addition of adjuvant MVP chemotherapy may reduce the incidence of distant metastasis and prolong the disease-free survival of the patients with stage I NSCLC after surgery.
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