Icotinib Following Chemotherapy Versus Chemotherapy as Adjuvant Therapy in Stage IIA-IIIA NSCLC With EGFR Mutation

Inclusion Criteria:

* Written informed consent provided.
* Aged 18-75 years.
* Had completely resected pathological confirmed stage IIA-IIIA NSCLC.
* EGFR activating mutation in exon 19 or 21.
* Had completed four cycles of platinum-based adjuvant chemotherapy.
* Able to start the investigational therapy within 4 weeks after the completion of four cycles of adjuvant chemotherapy.
* ECOG performance status of 0-1.
* Had a life expectancy of 12 weeks or more.
* Adequate hematological function, adequate liver function and renal function.
* Able to comply with the required protocol and follow-up procedures, and able to receive oral medications.
* Female patients, except those who are postmenopausal or surgically sterilized, must have a negative pre-study serum or urine pregnancy test.

Exclusion Criteria:

* Had had previous chemotherapy besides four cycles of adjuvant chemotherapy, radiotherapy, or agents directed at the HER axis (e.g. erlotinib, gefitinib, cetuximab, trastuzumab).
* Had a history another malignancy in the last 5 years with the exception of cured basal cell carcinoma of the skin, cured in situ carcinoma of the uterine cervix and cured epithelial carcinoma of the bladder.
* Any evidence confirmed tumor recurrence before investigational therapy.
* Known severe hypersensitivity to icotinib or any of the excipients of this product.
* Evidence of clinically active interstitial lung disease.
* Eye inflammation not fully controlled or conditions predisposing the subject to this.
* Any unstable systemic disease (including active infection, uncontrolled hypertension, unstable angina, congestive heart failure, myocardial infarction within the previous 6 months, serious cardiac arrhythmia requiring medication, hepatic, renal, or metabolic disease).
* Known human immunodeficiency virus (HIV) infection.
* Pregnancy or breast-feeding women.
* Ingredients mixed with small cell lung cancer patients.
* History of neurologic or psychiatric disorders.