Study of Anlotinib Combined With Pemetrexed in Patients With Advanced Nonsquamous NSCLC

Inclusion Criteria: * Signed the informed consent form prior to patient entry; * Male or female patients aged 18-75 years old； * Diagnosed with advanced NSCLC (phase IIIB/IV) through pathology, Neoadjuvant chemotherapy, or postoperative adjuvant chemotherapy or neoadjuvant chemotherapy combined with postoperative adjuvant chemotherapy or targeted chemoradiotherapy for local advanced disease recurrence within 6 months after completion; * Patients with negative driver genes who had previously only received first-line platinum double-drug therapy progression or intolerance; * In the past 3 months at least one target lesion that had not previously been irradiated,and at least one direction with the longest diameter at baseline greater than 10 mm (shorter diameter required not less than 15 mm if lymph nodes are involved)could be imaged by CT scan or MRI; * Expected Survival Time: Over 6 months; * had an Eastern Cooperative Oncology Group (ECOG) performance-status score of 0 or 1 (on a 5-point scale, with higher scores indicating increasing disability); * If there is central nervous system metastases,they must be asymptomatic central nervous system metastases; * The main organs function are normally, the following criteria are met:(1)Blood routine examination criteria should be met (no blood transfusion and blood products within 14 days, no correction by G-CSF and other hematopoietic stimuli): HB≥90 g/L; ANC ≥ 1.5×10\^9/L; PLT ≥80×10\^9/L;(2)Biochemical examinations must meet the following criteria: TBIL\<1.5×ULN; ALT and AST \< 2.5×ULN, and for patients with liver metastases \< 5×ULN; Serum Cr ≤ 1.25×ULN or endogenous creatinine clearance \> 60 ml/min (Cockcroft-Gault formula); * Women of child-bearing age should take appropriate contraceptive measures and should not breastfeed from screening to 3 months after stopping the study and treatment.Before starting administration, the pregnancy test was negative, or one of the following criteria was met to prove that there was no risk of pregnancy: 1. Postmenopause is defined as amenorrhea at least 12 months after age 50 and cessation of all exogenous hormone replacement therapy; 2. Postmenopausal women under the age of 50 May also be considered postmenopausal if their amenorrhea is 12 months or more after the cessation of all exogenous hormone therapy and their luteinizing hormone (LH) and follicle-stimulating hormone (FSH) levels are within the reference value range of laboratory postmenopausal; 3. has undergone irreversible sterilization surgery, including hysterectomy, bilateral ovectomy or bilateral salpingectomy, except for bilateral tubal ligation. For men, consent is required to use appropriate methods of contraception or to be surgically sterilized during the trial and 8 weeks after the last administration of the trial drug. Exclusion Criteria: * Small cell lung cancer (including lung cancer mixed with small cell lung cancer and non-small cell lung cancer),Lung sarcomatoid carcinoma; * Had histologically confirmed lung squamous cell carcinoma, or adenosquamous carcinoma; * EGFR、ALK mutation-positive by genetic testing technology (pathological examination results of other hospitals are acceptable) and who receive EGFR-TKI and ALK-TKI targeted drug therapy,except EGFR/ALK status cannot be determined for various reasons; * Imaging (CT or MRI) shows that the distance between tumor lesion and the large blood vessel is ≤ 5 mm, or there is a central tumor that invades the local large blood vessel; or there is a significant pulmonary cavity or necrotizing tumor; * have used Pemetrexed before and progressed; * Patients with uncontrolled pleural effusion need to be treated with other chemotherapy drugs; * Significant weight loss (more than 10% weight loss in the previous 6 weeks); * Medical history and combined history： 1. Had clinically symptomatic central nervous system metastasis(a patient with brain metastases who have completed treatment and stable symptoms in 28 days before enrollment may be enrolled, but should be confirmed by brain MRI, CT or venography evaluation as no cerebral hemorrhage symptoms or metastases in midbrain, pons, cerebellum, medulla oblongata, or spinal cord); 2. The patient is participating in other clinical studies or completing the previous clinical study in less than 4 weeks; 3. Had malignant tumors except NSCLC within 5 years before enrollment(except for patients with cervical carcinoma in situ , basal cell or squamous cell skin cancer who have undergone a curative treatment, local prostate cancer after radical resection, ductal carcinoma in situ or papillary thyroid cancer after radical resection); 4. Patients with previous anti-tumor treatment-related adverse reactions (excluding hair loss) who have not recovered to NCI-CTCAE ≤1; 5. Abnormal blood coagulation (INR \> 1.5 or prothrombin time (PT) \> ULN + 4 seconds or APTT \> 1.5 ULN), with bleeding tendency or undergoing thrombolytic or anticoagulant therapy;Note: Under the premise of prothrombin time international normalized ratio (INR) ≤ 1.5, low-dose heparin (adult daily dose of 0.6 million to 12,000 U) or low-dose aspirin (daily dosage ≤ 100 mg) is allowed for preventive purposes; 6. Renal insufficiency: urine routine indicates urinary protein ≥ ++, or confirmed 24-hour urine protein ≥ 1.0g; 7. The effects of surgery or trauma have been eliminated for less than 14 days before enrollment in subjects who have undergone major surgery or have severe trauma; 8. Severe acute or chronic infections requiring systemic treatment; 9. Suffering from severe cardiovascular disease: myocardial ischemia or myocardial infarction above grade II, poorly controlled arrhythmias (including men with QTc interval ≥ 450 ms, women ≥ 470 ms); according to NYHA criteria, grades III to IV Insufficient function, or cardiac color Doppler ultrasound examination indicates left ventricular ejection fraction (LVEF) \<50%; 10. There is currently a peripheral neuropathy of ≥CTCAE 2 degrees, except for trauma; 11. Respiratory syndrome (≥CTC AE grade 2 dyspnea), serous effusion (including pleural effusion, ascites, pericardial effusion) requiring surgical treatment; 12. Long-term unhealed wounds or fractures; 13. Decompensated diabetes or other ailments treated with high doses of glucocorticoids; 14. Factors that have a significant impact on oral drug absorption, such as inability to swallow, chronic diarrhea, and intestinal obstruction; 15. Clinically significant hemoptysis (daily hemoptysis greater than 2.5ml) within 3 months prior to enrollment; or significant clinically significant bleeding symptoms or defined bleeding tendency, such as gastrointestinal bleeding, hemorrhagic gastric ulcer, baseline fecal occult blood ++ and above, or suffering from vasculitis; 16. Events of venous/venous thrombosis occurring within the first 12 months prior to enrollment, such as cerebrovascular accidents (including transient ischemic attacks, cerebral hemorrhage, cerebral infarction), deep vein thrombosis, and pulmonary embolism; 17. Participated in clinical trials of other antitumor drugs within 4 weeks before enrollment or planned systemic antitumor treatment within 4 weeks before grouping or prior to receiving the test drug including cytotoxic therapy, signal transduction inhibitors, immunotherapy( or use mitomycin C within 6 weeks prior to receiving the test drug).Radiation-rehabilitation radiotherapy (EF-RT) was performed within 4 weeks before grouping or limited-field radiotherapy to be evaluated for tumor lesions within 2 weeks before grouping. * Physical examination and laboratory findings 1. a known history of HIV testing positive or acquired immunodeficiency syndrome (AIDS); 2. untreated active hepatitis (hepatitis b: HBsAg positive and HBV DNA more than 1 x 103 copy /ml; Hepatitis c: HCV RNA is positive and liver function is abnormal); Combined with hepatitis b and hepatitis c infection; 3. serious diseases that endanger patients' safety or affect patients' completion of research,according to the researchers' judgment.