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Respiratory Function and S-index in Radiographic Axial Spondyloarthritis

NCT07515131 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 52

Last updated 2026-04-07

No results posted yet for this study

Summary

Radiographic axial spondyloarthritis (r-axSpA) is a chronic inflammatory disease that may lead to reduced chest expansion and impaired respiratory function due to thoracic involvement. While inspiratory muscle strength is commonly assessed using maximum inspiratory pressure (MIP), the S-index is a novel parameter reflecting dynamic inspiratory muscle strength and has not yet been investigated in this population.

This study aims to compare chest expansion, spirometric parameters, and S-index values between individuals with r-axSpA and healthy controls. Additionally, the relationships between these parameters and clinical indices (BASDAI, BASFI, and BASMI) will be evaluated in patients with r-axSpA. The study also aims to explore the potential role of the S-index in the assessment of pulmonary function in this patient group.

Conditions

  • Radiographic Axial Spondyloarthritis

Sponsors & Collaborators

  • Gazi University

    lead OTHER

Principal Investigators

  • Feride N Gogus, MD · Gazi University Faculty of Medicine

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-01-03
Primary Completion
2025-10-28
Completion
2025-10-28

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07515131 on ClinicalTrials.gov