The standard treatment for the patients with surgically resectable early non-small cell lung cancer (NSCLC) is lung lobectomy. However, if patients have idiopathic pulmonary fibrosis combined with early stage lung cancer, there is no standard treatment for this population. Patients with idiopathic pulmonary fibrosis have chronic progressive decline in respiratory function; thus, the preservation of respiratory function is essential. The aim of this trial is to confirm the clinical effectiveness of sublobar resection such as wedge resection or segmentectomy for early NSCLC with idiopathic pulmonary fibrosis compared with lobectomy in a randomized phase III trial. The primary endpoint is overall survival. If the non-inferiority of overall survival and minimal invasiveness are proven, it can be a new standard treatment for early NSCLC with idiopathic pulmonary fibrosis. A planned total 430 patients will be enrolled from 50 institutions over 5 years. This trial has been registered in the UMIN Clinical Trials Registry with code UMIN000032696 [http://www.umin.ac.jp/ctr/index.htm].
Keywords: idiopathic pulmonary fibrosis; lobectomy; non-small cell lung cancer; randomized phase III trial; sublobar resection.
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