CTHRC1: A Biomarker for Evaluation of Rheumatoid Arthritis Disease Activity

• Conditions: Rheumatoid Arthritis

• Registration Number: NCT04415502
• Lead Sponsor: Assiut University

Brief Summary

The purpose of the study is to determine whether plasma levels of the collagen triple helix repeat containing (CTHRC1) protein can serve as a blood-based biomarker for diagnosis of rheumatoid arthritis (RA) ,and furthermore its correlation with disease activity

Detailed Description

Rheumatoid arthritis (RA) is a chronic, progressive, autoimmune disease of synovial joints. Characterized by periods of flares with high disease activity involving both a systemic immune response and tissue-specific inflammatory events that can lead to erosive joint and bone destruction and subsequent disability . Currently, diagnosis of RA is based mainly on the extent of tenderness and swelling of the joints , levels of acute-phase reactants such as C-reactive protein (CRP) ,erythrocyte sedimentation rate(ESR) , high titers of rheumatoid factor (RF) and high titers of antibodies against cyclic citrullinated peptide (anti-CCP) in the plasma .Recently, reported increased levels of collagen triple helix repeat containing 1 protein (CTHRC1) are strongly associated with the severity of murine proteoglycan-induced arthritis and collagen antibody-induced murine arthritis (CAIA) , further CTHRC1 expression in murine experimental arthritis is increased in the synovium and specifically detected in activated murine , located at the synovial intimal lining and at the bone-pannus interface .Of interest,The expression pattern of CTHRC1 in pannus, its role in the function of FLS relevant to cartilage damage in RA, and CTHRC1's association with disease severity in murine arthritis raised the question of whether CTHRC1 could be used as a marker for RA diagnosis and monitoring of disease activity in patients .

Study Timeline

• Study First Submitted: 2020-05-31
• Status Verified: 2020-06
• Study First Submitted QC: 2020-06-02
• Last Update Submitted: 2020-06-02
• Study First Posted: 2020-06-04
• Last Update Posted: 2020-06-04
• Study Start: 2020-10-01
• Primary Completion: 2021-04-01
• Study Completion: 2021-05-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 100

Inclusion Criteria

• patients diagnosed as RA
• age more than 18 years

Exclusion Criteria

• other rheumatological diseases Malignancies Hepatic diseases

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
CTHRc1 and RA disease activity	One year	Correlation of CTHRc1levels with RA disease activity
CTHRC1 in RA	One year	Measuring of CTHRc1 in Rheumatoid arthritis patients.