RA_CP is a double antibody sandwich enzyme-linked immunosorbent assay for the detection of rheumatoid arthritis related citrullinated proteins in human serum. It can specifically identify rheumatoid arthritis-specific citrullinated proteins in serum, independent of genetic background, with high sensitivity and high specificity. The use of RA_CP can improve the accuracy of clinical diagnosis of rheumatoid arthritis, reduce the incidence of clinical under diagnosis, and is of great significance for the early diagnosis of RA patients.

① High sensitivity and high specificity:It can accurately detect antibody levels citrullinated protein levels in patients with rheumatoid arthritis. The RA_CP test has a more differentiation diagnostic capability than the traditional rheumatoid factor (RF) test;

② RA_CP remains highly specific in suspected cases;

③ RA_CP can detect patients with RA who are negative for anti-CCP antibodies;

④ Early diagnosis: citrullinated protein can be detected early in the development of rheumatoid arthritis, even before the onset of clinical symptoms. With early detection and diagnosis, appropriate therapeutic measures can be taken to slow down disease progression and joint damage.