According to the Global Cancer Statistics 2022 report, lung cancer is the most common type of cancer (12.4% of the total) and the leading cause of cancer deaths (18.7% of total cancer deaths). According to the pathological classification of patients, lung cancer is divided into small cell lung cancer and non-small cell lung cancer, of which non-small cell lung cancer (NSCLC) accounts for 80-85% of all lung cancer.
Surgery is the preferred treatment for patients with early-stage lung cancer, according to the 2024 CSCO Guidelines. However, most patients have the possibility of recurrence and metastasis after surgery. The 5-year survival rate of patients with stage IA NSCLC is 80%-90%, but the 5-year survival rate of patients with stage ⅢB NSCLC drops to 40%. Neoadjuvant therapy has become an important part of the treatment of non-small cell lung cancer (NSCLC) in order to prolong the survival of patients.
In the past few years, many driver genes of NSCLC have been identified, and anaplastic lymphoma kinase (ALK) is one of them. ALK was first identified in anaplastic large cell lymphoma (ALCL). Studies at home and abroad have shown that ALK-rearranged (positive)NSCLC accounts for about 3%-7% of all NSCLC patients.
Many studies have suggested that ALK-TKI is clinically feasible as a neoadjuvant therapy for ALK positve patients with locally advanced NSCLC.
The investigators designed this study to explore the efficacy of enshatinib neoadjuvant therapy in patients with stage IIA to III ALK-positive lung adenocarcinoma
Age ≥18
Histologically or cytologically confirmed lung adenocarcinoma
Evaluated resectable TNM stage IIA-IIIB (operable or potentially operable) non-small cell lung cancer (NSCLC)
Alk-positive as determined by immunohistochemistry (IHC), fluorescence in situ hybridization (FISH), next-generation sequencing (NGS), or other non-specific sequencing methods，before treatment with ALK inhibitors
Have received any systemic anti-cancer treatment for locally advanced non-small cell lung cancer, including chemotherapy, biotherapy (including ALK-TKI), immunotherapy, or any investigational drug
PET-CT scan or biopsy results showing unresectable stage III and IV disease with distant metastasis (including malignant pleural effusion)
Patients who had a cancer other than NSCLC within 5 years before the initiation of study treatment
Allergy to ensartinib or any of the ingredients in this product