Apatinib Combined With PLD vs PLD for Platinum-resistant Recurrent Ovarian Cancer

Inclusion criteria 1. Patients were diagnosed with ovarian cancer, fallopian tube cancer or primary peritoneal cancer confirmed by previous pathology, and the pathological type was non-mucinous adenocarcinoma.There were previous surgical wax preservation. 2. Initial platinum-resistant relapse, the recurrence time was less than 6 months after the last chemotherapy. 3. Complicated with malignant pleural effusion or ascites, or with recurrent lesions that can be evaluated clinically. 4. ECOG physical status score 0 or 1. 5. The expected survival time is ≥ 4 months. 6. In the previous treatment, there was no antivascular targeted therapy; 7. Patients without pleural effusion or ascites should be confirmed by CT or MRI according to the standard of RECIST1.1 version, requiring the patient to have at least one measurable focus as the target focus. If the target focus is a lymph node with a short diameter of more than 1.5 cm, and the target focus is not suitable for surgical treatment, the target focus has not received radiotherapy or relapsed in the radiotherapy field. 8. The baseline blood routine conforms to the following criteria: 1. neutrophil count ≥ 1.5x109 /L; 2. platelet count ≥ 100x109 PG L; 3. hemoglobin ≥ 9g/dL (blood transfusion is allowed to achieve or maintain this target) . 9. Liver function meets the following criteria: 1. total bilirubin\<1.5 normal limit (ULN); 2. glutamic oxaloacetic transaminase (AST), glutamic pyruvic transaminase (ALT)\<2.5xULN, which is allowed\<5xULN in patients with liver metastasis. 10. Serum creatinine ≤ 1.25xULN or calculated creatinine clearance ≥ 50mL/min. Exclusion criteria 1. Have received more than two chemotherapy regimens in the past. 2. Currently or recently (within 30 days before enrollment) using another research drug or participating in another clinical study. 3. other malignant tumors have occurred within 5 years (except adequately treated cervical carcinoma in situ or skin squamous cell carcinoma, or controlled basal cell carcinoma of the skin). 4. Patients with hypertension that cannot be reduced to normal range after antihypertensive treatment (systolic blood pressure ≥ 140mmHg or diastolic blood pressure ≥ 90 mmHg). 5. Suffer from myocardial ischemia or myocardial infarction above II grade and poorly controlled arrhythmias (including QTc interval ≥ 470ms in females). 6. According to the NYHA standard, there were previous or present cardiac insufficiency of grade II or above, or color Doppler echocardiography showed that the left ventricular ejection fraction ((LVEF)) was less than 50% or the lower limit of the normal value. 7. Abnormal coagulation function (INR\>1.5 or prothrombin time (PT) \> ULN+4 seconds or APTT\>1.5xULN), with bleeding tendency or undergoing thrombolytic or anticoagulant therapy. 8. There were significant clinical bleeding symptoms or definite bleeding tendency in the first 3 months, such as gastrointestinal bleeding, hemorrhagic gastric ulcer, baseline fecal occult blood or above, or suffering from vasculitis. 9. Major surgical operations or severe traumatic injuries, fractures or ulcers occurred within the first 4 weeks of randomization. 10. There are significant factors affecting oral drug absorption, such as inability to swallow, chronic diarrhea and intestinal obstruction. 11. Urine routine indicates urinary protein ≥++, or confirms 24-hour urinary protein ≥ 1.0g. 12. The researchers judged other conditions that may affect the conduct of clinical studies and the determination of research results. 13. Allergic or heterogeneous reactions to doxorubicin and / or related substances. 14. The cumulative dose of doxorubicin (including previous anthracycline, if any) is expected to reach or exceed 550 mg after 4 courses of doxorubicin liposome injection treatment. 15. Uncontrollable arrhythmias or electrocardiograms abnormalities determined by the lead researcher to be at risk. 16. A history of doxorubicin liposome therapy in recent half a year. 17. Have previously received local radiotherapy of the pelvis or lower abdomen.