Accuracy of CBC Derived Markers Against CRP and ESR in Detecting Active Rheumatoid Arthritis in Upper Egypt
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: CBC derived markers.
- Who it may be relevant to
- Registry conditions: Rheumatic Diseases. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Assessment of the Accuracy of CBC-Derived Markers Against CRP and ESR in Detecting Active Rheumatoid Arthritis in Upper Egypt"
Overview
Rheumatoid arthritis (RA) is a chronic autoimmune disease that leads to persistent synovial inflammation, joint destruction, and disability, often with extra-articular manifestations like interstitial pneumonia. It predominantly affects middle-aged individuals, especially women. Early diagnosis and accurate disease activity assessment are crucial to prevent irreversible joint damage and systemic complications (4). Clinical tools like the Disease Activity Score in 28 joints (DAS28) are commonly used to monitor RA, relying on inflammatory markers such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). However, CRP and ESR can be influenced by factors unrelated to RA, such as infections or anemia, and may not always be available or cost-effective in resource-limited settings (1). In recent years, complete blood count (CBC)-derived markers have emerged as affordable and accessible alternatives for assessing systemic inflammation. These include the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR), and red cell distribution width (RDW). These indices have shown strong correlations with RA disease activity in various studies, particularly NLR and RDW, which have high sensitivity and specificity for detecting active disease (2-3). Studies in Egypt have explored the diagnostic accuracy of CBC-derived markers and composite indices like the CRP-to-albumin ratio (CAR) and albumin-to-fibrinogen ratio (AFR). These markers correlate significantly with DAS28 scores, suggesting they may be reliable indicators of RA disease activity in Egyptian patients (1-3).
Interventions
- Other CBC derived markers
CBC derived markers against CRP and ESR in detecting active Rheumatoid arthritis
Primary outcome measures
- the diagnostic accuracy of CBC-derived inflammatory markers in detecting active rheumatoid arthritis in Upper Egypt. [Time frame: baseline]
Eligibility criteria
Inclusion criteria
- 1-Adults aged ≥18 years. 2-Established RA diagnosis according to ACR/EULAR criteria {ACR: American College of Rheumatology, a professional organization of rheumatologists.
EULAR: European League Against Rheumatism, a European organization for rheumatology.
3-Willing to provide informed consent
Exclusion criteria
- 1-Presence of infection, malignancy, or other autoimmune diseases. 2-Recent use (within 4 weeks) of corticosteroids or immunosuppressive therapy. 3-Pregnant or lactating women.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Case-only
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07149194 · CBC markers in RA activity