Osimertinib as Neoadjuvant Therapy in Patients With Resectable Stage II-IIIB EGFR-mutated Lung Squamous Cell Carcinoma: A Single-centre, Single-arm, Phase 2 Trial
Previous trials, such as ADURA and CTONG, have demonstrated the benefits of neoadjuvant targeted therapy in patient with EGFR mutations , which can effectively reduce the extent of tumors and improve the survival outcomes. However, clinical trials of neoadjuvant targeted therapy in NSCLC have rarely enrolled patients with EGFR-mutated lung squamous cell carcinoma due to its rarity, which means that the safety and feasibility of neoadjuvant osimertinib in patients with resectable stage II-IIIB EGFR-mutated lung squamous cell carcinoma remains controversial.
• Chest CT and pathological examination confirmed as resectable II-IIIB lung squamous cell carcinoma;
• Gene text confirmed EGFR mutation;
• PET-CT confirmed no metastasis;
• ECOG physical status score 0-1;
• Age ≥ 18 years;
• Have one measurable lesion at least;
• Good function of other major organs (liver, kidney, blood system, etc.):-absolute neutrophil count ((ANC) ≥ 1.5 × 109), platelet (≥ 100 × 109), hemoglobin (≥ 90g/L). Note: patients shall not receive blood transfusion or growth factor support within 14 days before blood collection during the screening period;-International standardized ratio (INR) or prothrombin time (PT) ≤ 1.5 × normal upper limit (ULN);-activated partial thromboplastin time (APTT) ≤ 1.5 × ULN;- serum total bilirubin ≤ 1.5 × ULN (Gilbert syndrome patients with total bilirubin must be \< 3×ULN). Fertile female patients with aspartate and alanine aminotransferase (AST and ALT) ≤ 2.5 × ULN, or liver metastasis with AST and ALT ≤ 5 × ULN
• Fertile female patients must voluntarily take effective contraceptive measures more than 120 days after treatment, and the urine or serum pregnancy test results less than 7 days before entering the group were negative. Unsterilized male patients must voluntarily take effective contraceptive measures ≥ 120 days after treatment;
• Sign informed consent.