Overview

The purpose of the study is to evaluate the efficacy and safety of SHR-2004 in preventing venous thromboembolism after elective unilateral total knee arthroplasty.

Eligibility

Inclusion Criteria:

1. Understand the research procedures and methods, volunteer to participate in this trial, and sign the informed consent form in writing;
2. Planned elective schedule total knee arthroplasty (TKA) patients;
3. Men or women who are ≥ 18 years old and < 80 years old on the day of signing the informed consent form.

Exclusion Criteria:

1. Unable to receive CT angiography of both lower limbs;
2. Malignant tumor within one year of the screening;
3. Myocardial infarction, transient ischemic attack or ischemic stroke occurred within 6 months of the screening;
4. Any medical history that may increase the risk of bleeding or any conditions that the investigator considers to increase the risk of bleeding;
5. History of drug abuse;
6. Pregnant or lactating women.