A Study of BH-30643 in Subjects With Locally Advanced or Metastatic NSCLC Harboring EGFR and/or HER2 Mutations

Inclusion Criteria: * ≥ 18 years or legal adult. * Pathologically confirmed diagnosis of locally advanced or metastatic NSCLC with EGFR or HER2 mutations in the kinase domain of exons 18, 19, 20, or 21. * Has at least 1 measurable target extracranial lesion according to RECIST v1.1. * Eastern Cooperative Oncology Group Performance Status ≤ 1. * Has a life expectancy of ≥ 3 months. * Has adequate hematologic, hepatic, and renal function. * The above are a summary; other Inclusion Criteria details may apply. Exclusion Criteria: * History of any concurrent malignancy within the previous 2 years. * Known other oncogenic driver alterations (eg, moderate or high MET amplification) or histological transformation (eg, to small cell carcinoma, etc.). * Unresolved toxicities from prior therapies. * Any significant and uncontrolled medical condition, such as infection. * Active or history of interstitial lung disease from any cause * Clinically significant cardiovascular event within 6 months or significant history of major organ. * The above are a summary; other Exclusion Criteria details may apply.