Efficacy and Safety of Anlotinib Plus Platinum Plus Pemetrexed in T790M-negative NSCLC

Inclusion Criteria:

* ≥ 18 and ≤ 75 years of age. Signed the informed consent form prior to patient entry
* Histologically or pathologically confirmed non-squamous non-small cell lung cancer(NSCLC) with stage IV .
* Epidermal Growth Factor Receptor(EGFR)mutations confirmed by molecular detection (including, but not limited to 19 exon deletion and L858R) external pathological examination was accepted (including pathological or blood test results)
* Patients have only be treated with EGFR -TKIs（Tyrosine kinase inhibitors）including gefitinib, elotinib or icotinib, and received a best response of PR for ≥4months or SD for 6 months; disease has progressed recently according to RECIST 1.1 and negative for T790M detection（detection methods including ddPCR、ARMS or NGS） (For recurrent patients, adjuvant chemotherapy, neoadjuvant chemotherapy or neoadjuvant chemotherapy plus adjuvant were assessed for eligibility, and the last treatment time must be more than 6 months before enrollment）
* Must have at least one measurable lesion as per RECIST 1.1 defined as a lesion that is 10mm in longest diameter imaged by CT scan or MRI；prior topical treatment, such as radiotherapy cryosurgery to the lesions is not allowed in less than 3 months;
* Life expectancy ≥3 months.
* Eastern Cooperative Oncology Group(ECOG) performance status 0 or 1.
* Toxicity caused by prior anti-cancer treatments was restored to ≤ level 1 in CTC AE (4.0) , except alopecia;
* The blood routine examination need to be standard (no blood transfusion and blood products within 14 days, no g-csf and other hematopoietic stimulating factor correction) Hemoglobin（HB）≥90 g/L A Neutrophil count of （ANC）≥1.5×109/L A Platelet count of （PLT）≥80×109/L A Total bilirubin (TBil) of ≤1.5 upper normal limitation (UNL) A alanine aminotransferase (ALT) and a aspartate aminotransferase (AST) of ≤2.5 UNL, in case of liver metastasis ALAT and ASAT≤5 UNL A creatinine (Cr) of ≤1.5 UNL; a creatinine clearance rate ≥ 60ml/min (Cockcroft-Gault)
* The woman patients of childbearing age who must agree to take contraceptive methods during the research and within another 8 weeks after it and examined as negative in blood serum test or urine pregnancy test within 7 days before the research; the man patients who must agree to take contraceptive methods during the research and within another 8 weeks;
* Voluntarily joined the study and signed informed consent, with good compliance and follow-up.

Exclusion Criteria:

* Small Cell Lung Cancer mixed or squamous mixed;
* No squamous NSCLC with hemoptysis (\>50ml/day);
* Symptomatic brain metastases after treatment;
* Tumor locate within a distance of less than 5 mm from the large vessels, less than 2 cm from the bronchial tree, or has invaded local large vessels; tumor with cavum or necrotic obviously;
* Uncontrolled hypertension (systolic ≥150mmHg and/or diastolic ≥100mmHg, despite optimal drug therapy).
* Patients with with grade Ⅱ myocardial ischemia or myocardial infarction, poor control of arrhythmias (including QTc interval male ≥ 450 ms, female ≥470 ms); according to NYHA standard, grade Ⅲ \~ Ⅳ heart failure, or cardiac color Doppler ultrasound examination showed left ventricular ejection fraction (LVEF) \<50%.
* Coagulation dysfunction (INR\> 1.5, PT\> ULN +4s or APTT\> 1.5 ULN), with bleeding tendency or ongoing thrombolysis or anti-blood coagulation treatment;note: Note: under the premise of International Normalized ratio (INR) of prothrombin time (PT) Less than or equal to 1.5, allow to administrate low-dose heparin (adult daily dose is 06000 \~ 12000 U) or low-dose aspirin (100 mg daily dosage or less) , for prophylactic purposes
* Patients whose routine urine tests indicate that urine protein ≥ ++ or verifies that the 24-h urine protein quantitation ≥ 1.0 g.
* Patients whose has peripheral neuropathy over level 2 in CTC AE4.0, except trauma.
* Patients with respiratory syndrome (difficulty breathing of level 2 or higher ), serous cavity effusion need to surgical treatment ( including pleural of level 2 or higher with respiratory distress and anoxia
* Patients who have unhealed wounds or fractures for a long time.
* Patients with severe infections , and need to receive systemic antibiotic treatment
* Decompensated diabetes or other contraindication with high dose glucocorticoid therapy;
* Cirrhosis or decompensated liver disease; active or untreated hepatitis C and/or Hepatitis B virus (HBV) infection（prior hepatitis B history, HBsAg positive and HBV DNA≥500IU/mL; HCV RNA positive and hepatic Insufficiency
* History of immunodeficiency, HIV infection etc
* Active pulmonary tuberculosis;
* Has an obvious factor influencing oral drug absorption, such as unable to swallow, chronic diarrhea and intestinal obstruction, etc
* Patients who received major surgical operations or experienced severe traumatic injuries, bone fracture, or ulcers within 4 weeks before screening.
* Severe weight loss (\> 10%) Within 6 weeks before Random
* Patients who had obvious hemoptysis (\>50ml/day) within 3 months before screening; Patients who experienced bleeding symptoms of clinical significance within 3 months before screening, or with confirmed bleeding tendency such as hemorrhage of digestive tract, hemorrhagic gastric ulcer, baseline occult blood in stool ++ and above, or vasculitis, etc;
* Patients who manifested arterial/venous thrombus events, e.g. cerebrovascular accident (including transient ischemic attack), deep venous thrombosis and pulmonary embolism, etc., within 12 months before screening.
* Allergic reactions to anotol or excipients in experimental drugs.
* Allergic reactions to contrast medium
* Patients have participated in other antitumor drug clinical trials Within 4 weeks before enrollment or prepare to receive systemic anti-tumor treatment during the study or Within 4 weeks before randomization
* Patients with any other medical condition or reason, in that investigator's opinion, makes the patient unstable to participate in a clinical trial.