This study is a Phase 1 clinical trial, which means it is the first stage of testing a new drug in humans to evaluate its safety, determine how the body processes it, and identify any potential side effects. The drug being studied, DZD6008, is investigational, meaning it has not been approved by the U.S. Food and Drug Administration (FDA). This study is evaluating the study drug, DZD6008, in patients with advanced non small cell lung cancer (NSCLC) harboring an epidermal growth factor receptor (EGFR) mutation. EGFR is a protein that is important in regulating activities in cell proliferation...