Non-small Cell Lung Cancer Stage IIIA

The purpose of this study is to find out how many people with HER2-amplified or HER2-mutated non-small cell lung cancer (NSCLC) experience a decrease in tumor viability when they receive trastuzumab deruxtecan before routine surgery to remove tumors.

This study is a single-center, prospective, single-arm study of the efficacy of double-dose Furmonertinib in the treatment of patients with slow Osimertinib-resistant non-small cell lung cancer, mainly in patients with advanced non-small cell lung cancer with EGFR-sensitive mutations in stage IIIB or IV, slow drug resistance after treatment with Osimertinib, and no therapeutic target was found by secondary biopsy after drug resistance.

Early-stage non small cell lung cancer represents 20-30% of all non small cell lung cancer and is characterized by a high survival probability after surgical resection. However, considering stage IA-IIIA non small cell lung cancer, a relapse rate of about 50% is observed, with a different survival probability on the basis of tumor node metastasis status, although patients within the same tumor node metastasis stage exhibit wide variations in recurrence rate. There are currently no validated prognostic biomarkers able to identify patients with a high risk of relapse.