Neoadjuvant Furmonertinib and Cisplatin/Pemetrexed as in EGFR Mutated Stage IIIA-IIIB Resectable NSCLC (FORESEE)

Inclusion Criteria: * With written informed consent before any study procedure * Histology or cytology diagnose of non-small cell lung cancer within 60 days * Stage IIIA/IIIB, with resectable lesion(s) by radiology * EGFR mutation positive (exon 19 deletions or exon 21 L858R, with or without other EGFR mutations) * Without prior anti-tumor treatment * With at least one measurable lesions (The longest axis ≥10mm) * ECOG performance status 0-1 * Using adequate and effective contraception, women should refrain from breastfeeding and have a negative pregnancy test prior to the first administration of the study drug if within during child-bearing age Exclusion Criteria: * EGFR Exon 20 insertions positive * Mixed with small cell cancer, or other mixed types of lung cancer * Any prior anti-tumor treatment * Major surgery within 4 weeks before enrolment * Women with pregnancy or breastfeeding * Use of strong CYP3A4 inhibitors within 7 days or strong CYP3A4 inducers within 21 days before enrolment; use of traditional Chinese medicine with anti-tumor effect within 21 days before enrolment * With history of other malignancy except for radical resected tumors without recurrence for 5 years or more * With severe or uncontrolled systemic disease such as uncontrolled hypertention, diabetes mellitus, chronic heart failure, unstable angina, myocardial infarction within 1 year, active hemorrhage, active HBV/HCV/HIV or other infections requiring infusion treatment * Severe gastrointestinal diseases which may affect the intake and absorption of study drug * Prolongation of ECG QTc or with relative risk factors * History of interstitial lung disease or with relative risk factors * Inadequate organ function of hematology, liver and kidney * Allergic to study drugs or any component * Poor adherence or other situation judged by investigator * Patients who had participated other clinical studies of tumors