T-DXd is an approved therapy in China for locally advanced or metastatic NSCLC patients with human epidermal growth factor receptor 2 mutations (HER2m). In previous clinical trials, T-DXd demonstrated efficacy and manageable safety profiles in the ≥ second-line setting for NSCLC harboring HER2m. However, patient populations are more diverse in routine practice and no real-world data of T-DXd used in Chinese lung cancer patients with HER2 mutations exist.
This study will assess the effectiveness of ≥ second-line treatment of T-DXd in real-world setting as the primary objective. Secondary objectives will further assess the effectiveness and overall survival of ≥ second-line treatment of T-DXd in real-world setting as well as evaluate the safety and tolerability of any-line treatment of T-DXd in real-world setting. This is an non-interventional, observational study. No drug will be provided or administered as part of this protocol; however, participants on T-DXd will be enrolled in this study.