Accounted for 15.4% of new cancer cases in 2018, lung cancer is one of the most common cancers in Hong Kong, with around 30% of patients having resectable non-small cell lung cancer (NSCLC).1,2 While adjuvant chemotherapy is the current postoperative standard of care, this treatment could only reduce the risk of disease recurrence or death by 16%.2 Recently, the ADAURA trial demonstrated that osimertinib, when utilized as an adjuvant therapy with or without chemotherapy, could prolong the disease-free survival (DFS) of patients with resected stage IB to IIIA epidermal growth factor receptor (EGFR) mutation positive NSCLC.2 In a recent interview with Omnihealth Practice, Dr. Tsang, Wai-Kong Maverick, shared a local patient case with resected stage IB EGFR mutation-positive lung adenocarcinoma who was well-tolerated to the postoperative adjuvant osimertinib without chemotherapy for 10 months.