Oxidative stress in autoimmune joint diseases

Investigation of the Role of Redox Status of Patients With Autoimmune Rheumatic Diseases on Disease Progression: An Epidemiological Study

Observational University of Thessaly · NCT07536529

Researchers will see if oxidative stress and antioxidant markers differ in adults with rheumatoid arthritis, psoriatic arthritis, or ankylosing spondylitis.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Thessaly Academic / other
Locations1 site (Larissa, Thessaly)
Trial IDNCT07536529 on ClinicalTrials.gov

What this trial studies

This observational project will enroll adults with rheumatoid arthritis, psoriatic arthritis, or ankylosing spondylitis at the General University Hospital of Larissa. Biological samples (such as blood) and clinical information on disease status, treatments, comorbidities, diet and physical activity will be collected. Laboratory assays will measure oxidative stress and antioxidant markers and statistical analyses will look for patterns and correlations with disease type, severity, comorbidity and therapy. No experimental treatments are given; the work aims to deepen understanding of molecular changes associated with these conditions.

Who should consider this trial

Good fit: Adults aged 18 or older with a confirmed primary diagnosis of rheumatoid arthritis, psoriatic arthritis, or ankylosing spondylitis are eligible regardless of disease duration, status, comorbidities, or current treatments.

Not a fit: People under 18, those with non-autoimmune joint conditions, or patients unable to attend hospital visits are unlikely to benefit from or be eligible for this work.

Why it matters

Potential benefit: If successful, the findings could reveal oxidative stress patterns that inform personalized supportive therapies or lifestyle recommendations to reduce complications.

How similar studies have performed: Previous observational studies have reported altered oxidative stress markers in rheumatoid and psoriatic arthritis, so this work builds on existing evidence rather than testing an entirely novel concept.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patients (\>18 years old), with a primary diagnosis of rheumatoid arthritis using the criteria of American College of Rheumatology (ACR)
* Adult patients (\>18 years old), with a primary diagnosis of psoriatic arthritis using the ClASsification criteria for Psoriatic Arthritis (CASPAR)
* Adult patients (\>18 years old), with a primary diagnosis of alkylosing spondyloarthritis using the criteria of Assessment of SpondyloArthritis international Society (ASAS) group
* Adult patients (\>18 years old) irrespective of gender
* Adult patients (\>18 years old) irrespective of ethnicity
* Adult patients (\>18 years old) irrespective of comorbidities
* Adult patients (\>18 years old) irrespective of socioeconomic background
* Adult patients (\>18 years old) with any disease status
* Adult patients (\>18 years old) with any disease duration
* Adult patients (\>18 years old) under any treatment scheme (e.g. non-steroidal anti-inflammatory drugs, steroids, disease-modifying anti-rheumatic drugs including biologics)

Exclusion Criteria:

* Adult patients (\>18 years old) with concurrent infectious disease
* Adult patients (\>18 years old) in pregnancy
* Patients under 18 years of age

Where this trial is running

Larissa, Thessaly

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Inflammatory Joint DiseasesRheumatoid ArthritisPsoriatic ArthritisAnkylosing SpondylitisRheumatoid arthritisPsoriatic arthritisAnkylosing spondylitisOxidative stress
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.