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Subclinical Hypothyroidism and Disease Activity in Rheumatoid Arthritis
Sponsor: Assiut University
Summary
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disorder that causes persistent joint inflammation and damage. Thyroid disorders, particularly subclinical hypothyroidism, are common co-existing conditions in patients with autoimmune diseases. Subclinical hypothyroidism occurs when the thyroid gland is mildly underactive, characterized by an elevated thyroid-stimulating hormone (TSH) level with normal free thyroxine (FT4) levels. The primary purpose of this cross-sectional study is to determine how common subclinical hypothyroidism is among Egyptian patients with rheumatoid arthritis compared to an age- and sex-matched group of healthy individuals. Additionally, the study aims to evaluate whether the presence of subclinical hypothyroidism is linked to higher rheumatoid arthritis disease activity, severe joint involvement, or specific clinical characteristics. A total of 150 adult participants will be included: 75 patients diagnosed with rheumatoid arthritis and 75 healthy controls. All participants will undergo a clinical evaluation, joint examinations, and standard blood tests, including complete blood counts, inflammatory markers, and a thyroid hormone panel (TSH, FT4, and FT3). Disease activity in rheumatoid arthritis patients will be evaluated using the Disease Activity Score-28 (DAS28).
Official title: Prevalence of Subclinical Hypothyroidism in Patients of Rheumatoid Arthritis and Its Relation to Disease Activity
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
OBSERVATIONAL
Enrollment
150
Start Date
2026-10
Completion Date
2027-11
Last Updated
2026-08-31
Healthy Volunteers
Not specified