A Trial Exploring the Opportune Administration of Nab-paclitaxel in the First Line Treatment, Camrelizumab Combined With Nab-paclitaxel and Famitinib, of TNBC.

Inclusion Criteria:

* ECOG Performance Status of 0-1
* Expected lifetime of not less than three months
* Metastatic or locally advanced, histologically documented TNBC (absence of HER2, ER, and PR expression)
* Cancer stage: recurrent or metastatic breast cancer; Local recurrence be confirmed by the researchers could not be radical resection.
* Adequate hematologic and end-organ function, laboratory test results.
* Measurable disease according to Response Evaluation Criteria in Solid Tumors v1.1 (RECIST v1.1) • Patients had received no previous chemotherapy or targeted therapy for metastatic triple-negative breast cancer

Exclusion Criteria:

* Previous received anti-VEGFR small molecule tyrosine kinase inhibitors (e.g. famitinib, sorafenib, Sunitinib, regorafenib, etc.) for treatment of the patients .
* A history of bleeding, any serious bleeding events.
* Important blood vessels around tumors has been infringed and high risk of bleeding.
* Coagulant function abnormality
* artery/venous thromboembolism event
* History of autoimmune disease
* Positive test for human immunodeficiency virus
* Active hepatitis B or hepatitis C
* Uncontrolled pleural effusion and ascites • Known central nervous system (CNS) disease.
* Long-term unhealing wound or incomplete healing of fracture
* urine protein ≥2+ and 24h urine protein quantitative \> 1 g.
* Pregnancy or lactation.
* Thyroid dysfunction.
* Peripheral neuropathy grade ≥2.
* People with high blood pressure;
* A history of unstable angina;
* New diagnosis of angina pectoris.
* Myocardial infarction incident ;