This is a phase 2 open-label study to assess the efficacy and safety of osimertinib in participants with stage II-IIIB NSCLC with sensitising EGFR mutations. The study is designed to evaluate 5 years of adjuvant osimertinib therapy.
To assess the efficacy and safety of osimertinib in participants with EGFRm positive stage II-IIIB NSCLC, following complete tumour resection with or without adjuvant chemotherapy.