Real World Clinical Outcomes of Resected ALK-Positive Early Stage NSCLC Patients Treated With Alectinib as Adjuvant Therapy

Inclusion Criteria: * Histologically-confirmed stage II-IIIA or selected IIIB (T3N2) NSCLC as per the American Joint Committee on Cancer and International Union Against Cancer (UICC/AJCC), 8th edition * ALK positive * Postoperative NSCLC patients who have undergone complete resection * Had taken Alectinib monotherapy without prior systemic therapy (including other ALK-TKIs or chemotherapy) as adjuvant† therapy for resected stage II-IIIB ALKpositive NSCLC and the time from the first dose to enrollment was no more than 28 days Exclusion Criteria: * Patients participating in interventional study of adjuvant treatment * Pregnant, lactating, or breastfeeding women