A multicenter, randomized, double-blind, parallel-controlled Phase III trial to evaluate the efficacy and safety of anotinib hydrochloride capsule combined with epirubicin hydrochloride versus placebo combined with epirubicin hydrochloride in first-line treatment of advanced soft tissue sarcoma

Inclusion Criteria:

• Eastern Cooperative Oncology Group (ECOG) performance status score of 0 to 1.
• Life expectancy >=3 months.
• Female patients of childbearing age should agree to use contraceptive measures during the study period and for at least 6 months after study is stopped; male patients should agree to use contraception during the study period and for at least 6 months after study is stopped.
• Understood and signed an informed consent form.

Exclusion Criteria:

• Diagnosed and/or treated additional malignancy within 5 years before the first dose.
• With factors affecting oral medication.
• Received major surgical treatment, open biopsy or obvious traumatic injury within 4 weeks before the first dose.
• A history of psychotropic drug abuse or have a mental disorder.
• Any severe and/or uncontrolled diseas.
• Has received Chinese patent medicines with anti-tumor indications within 2 weeks before the first dose.
• Has participated in other clinical studies within 4 weeks before the first dose.
• According to the judgement of the investigators, there are other factors that subjects are not suitable for the study.