Abstract
Early-stage non-small-cell lung cancer (NSCLC) carries with it an unfavorable prognosis even in patients who have undergone surgical intervention. Efforts to improve the outcome of patients with early-stage NSCLC have focused on adjuvant or neoadjuvant chemotherapy. The role of adjuvant therapy in NSCLC has been clarified by the recent publication of several large randomized trials. The International Adjuvant Lung Trial was the first prospective trial to report that adjuvant chemotherapy following complete surgical resection of NSCLC improved absolute overall survival by approximately 5% at 5 years. This result has subsequently been confirmed by several other trials. As a result, adjuvant chemotherapy following complete resection of stage IB-III NSCLC can now be considered the standard of care. Neoadjuvant chemotherapy, which has long been investigated for stage III NSCLC, was also recently explored in stage I/II NSCLC. Although neoadjuvant chemotherapy seems promising, more work is needed to comprehensively evaluate and optimize this approach. The current evidence for adjuvant and neoadjuvant therapy in early-stage NSCLC is reviewed in this article.
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