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Changes in Serum Calprotectin and Their Clinical Correlates in Axial Spondyloarthritis Patients Undergoing Pulmonary Rehabilitation

9 septembre 2026 mis à jour par: Asude Cevher Elmas Telli, Giresun University
Our study aims to investigate changes in serum calprotectin levels in patients with axial spondyloarthritis enrolled in a pulmonary rehabilitation programme and to examine the relationship between serum calprotectin levels and NLR (neutrophil-lymphocyte ratio), PLR (platelet-lymphocyte ratio), SIRI (systemic inflammation response index), SII (systemic immune-inflammation index) values, pulmonary function tests, disease activity scores, and quality of life. It will be conducted between 2 April 2025 and 1 April 2026. Patients diagnosed with axial SpA who were enrolled in the pulmonary rehabilitation programme at the Cardiopulmonary Rehabilitation Unit of the Department of Physical Medicine and Rehabilitation at Giresun University Training and Research Hospital between 21 August 2025 - 24 February 2026, patients diagnosed with axial SpA who are enrolled in the pulmonary rehabilitation programme will be evaluated according to inclusion and exclusion criteria, and 30 suitable patients will be included in the study. The following data will be recorded for these patients: age, gender, occupation, duration of diagnosis, medications used, presence of additional diseases, anthropometric measurements (chest expansion test, occipital wall, tragus wall, finger span), BMI, and history of smoking and alcohol consumption. For patient follow-up, the results of routine haematological tests, acute phase reactants, and spirometry examinations performed before and after the rehabilitation programme will be recorded. Data obtained from haematological test results will be used to calculate NLR, PLR, SIRI, and SII values. Additionally, serum calprotectin levels will be measured from the blood sample taken for CRP. The Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Functional Index (BASFI), Bath Ankylosing Spondylitis Metrology Index (BASMI), Ankylosing Spondylitis Disease Activity Score-C Reactive Protein (ASDAS-CRP), Maastricht Ankylosing Spondylitis Enthesitis Score (MASES), the Nottingham Health Profile (NHP), the Health Assessment Questionnaire (HAQ), the St George's Quality of Life Questionnaire (SGRQ), the Modified Borg Scale, and the 6-Minute Walk Test will be evaluated. The outcome measures recorded at the start of treatment will be repeated after a four-week rehabilitation programme.

Aperçu de l'étude

Statut

Complété

Les conditions

Type d'étude

Observationnel

Inscription (Réel)

30

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

  • Turquie (Türkiye)
      • Giresun, Turquie (Türkiye), 28200
        • Giresun University Faculty of Medicine

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

Méthode d'échantillonnage

Échantillon non probabiliste

Population étudiée

A total of 30 voluntary patients aged between 25 and 65 years, diagnosed with axial spondyloarthritis according to the ASAS classification criteria, and enrolled in a pulmonary rehabilitation program at the Cardiopulmonary Rehabilitation Unit of the Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Giresun University, between April 2025 and April 2025, were included in the study.

La description

Inclusion Criteria:

  • Classification as axial spondyloarthritis according to the 2009 ASAS (Assessment of SpondyloArthritis International Society) criteria
  • Age between 25 and 65 years
  • Both male and female patients
  • Ability to perform pulmonary function tests (PFTs) with full cooperation

Exclusion Criteria:

  • Change in antirheumatic medication or dosage within the last 3 months
  • Engagement in regular physical activity within the last 3 months
  • History of unstable angina pectoris, cardiac arrhythmias, or myocardial infarction within the last 3 months
  • Presence of any orthopedic, neurological, or mental disorder that could affect exercise performance
  • History of pulmonary disease (asthma, COPD, atelectasis, etc.)
  • Active malignancy and/or history of malignancy within the last 5 years
  • History of syncope or exercise-induced arrhythmia
  • Current pregnancy or planning pregnancy in the near future
  • History of major surgery within the last 6 months
  • Use of assistive devices for ambulation or presence of orthopedic joint prosthesis
  • Patients with total spinal ankylosis
  • Presence of a known additional rheumatologic disease

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Change in serum calprotectin levels before and after pulmonary rehabilitation.
Délai: Baseline and 4 weeks
The primary objective of this study was to evaluate the changes in serum calprotectin levels in patients with axial spondyloarthritis (axSpA) enrolled in a pulmonary rehabilitation program.
Baseline and 4 weeks

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Changes in C-reactive protein [CRP] before and after pulmonary rehabilitation.
Délai: Baseline and 4 weeks
Measured via standard blood serum analysis in milligrams per liter (mg/L) from baseline to 4 weeks post-pulmonary rehabilitation.
Baseline and 4 weeks
Change in Erythrocyte Sedimentation Rate (ESR)
Délai: Baseline and 4 weeks
Measured in millimeters per hour (mm/hr) from baseline to 4 weeks post-pulmonary rehabilitation.
Baseline and 4 weeks
Change in Systemic Inflammation Response Index (SIRI)
Délai: Baseline and 4 weeks
Calculated from peripheral blood counts using the formula: SIRI = (Neutrophil count × Monocyte count) / Lymphocyte count. Assessed as a unitless ratio to evaluate systemic inflammatory status from baseline to 4 weeks post-pulmonary rehabilitation.
Baseline and 4 weeks
Change in Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) Score
Délai: Baseline and 4 weeks
Assessed using the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). Total score ranges from 0 to 10, where 0 indicates no disease activity and 10 indicates severe disease activity. Higher scores represent worse outcomes.
Baseline and 4 weeks
Change in Bath Ankylosing Spondylitis Functional Index (BASFI) Score
Délai: Baseline and 4 weeks
Assessed using the Bath Ankylosing Spondylitis Functional Index (BASFI) to evaluate functional limitations. The BASFI consists of 10 items assessing daily physical activities. Total score ranges from 0 to 10, where 0 represents easy/no functional impairment and 10 represents impossible/severe functional impairment. Higher scores indicate worse functional limitations.
Baseline and 4 weeks
Change in Ankylosing Spondylitis Disease Activity Score (ASDAS-CRP)
Délai: Baseline and 4 weeks
Assessed using the Ankylosing Spondylitis Disease Activity Score (ASDAS-CRP), a composite index combining patient-reported assessments and serum C-reactive protein (CRP) levels. Scores are categorized as: < 1.3 indicates inactive disease, 1.3 to 2.0 indicates moderate disease activity, 2.1 to 3.5 indicates high disease activity, and > 3.5 indicates very high disease activity. Higher scores represent worse disease activity.
Baseline and 4 weeks
Change in St. George's Respiratory Questionnaire (SGRQ) Total Score
Délai: Baseline and 4 weeks
Assessed using the St. George's Respiratory Questionnaire (SGRQ) to measure health-related quality of life. The questionnaire consists of 50 items across three domains: symptoms, activity, and impacts. Total scores range from 0 to 100, where 0 indicates no impairment and 100 indicates maximum impairment. Higher scores indicate worse health status and greater limitation.
Baseline and 4 weeks
Change in Maastricht Ankylosing Spondylitis Enthesitis Score (MASES)
Délai: Baseline and 4 weeks
Assessed using the Maastricht Ankylosing Spondylitis Enthesitis Score (MASES) to evaluate enthesitis across 13 anatomical locations bilaterally and at the 5th lumbar spinous process. Tenderness is scored dichotomously (0 = absent, 1 = present). Total score ranges from 0 to 13. Higher scores indicate worse outcomes (more tender enthesis sites and greater disease activity).
Baseline and 4 weeks
Change in Nottingham Health Profile (NHP) Total Score
Délai: Baseline and 4 weeks
Assessed using the Nottingham Health Profile (NHP) to evaluate perceived emotional, social, and physical health problems across 38 items. Each subscale score and the combined total score range from 0 to 100. Higher scores indicate worse outcomes (greater perceived health problems and poorer quality of life).
Baseline and 4 weeks
Change in Systemic Immune-Inflammation Index (SII)
Délai: Baseline and 4 weeks
Calculated from peripheral blood counts using the formula: SII = (Platelet count × Neutrophil count) / Lymphocyte count. Assessed as a unitless ratio from baseline to 4 weeks post-pulmonary rehabilitation.
Baseline and 4 weeks
Change in Neutrophil-to-Lymphocyte Ratio (NLR)
Délai: Baseline and 4 weeks
Calculated as the ratio of absolute neutrophil count to absolute lymphocyte count from baseline to 4 weeks post-pulmonary rehabilitation.
Baseline and 4 weeks

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Giresun University

Les enquêteurs

  • Directeur d'études: Zerrin KASAP, Giresun University
  • Chercheur principal: Asude cevher ELMAS TELLİ, Giresun University

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

2 août 2025

Achèvement primaire (Réel)

31 décembre 2025

Achèvement de l'étude (Réel)

31 décembre 2025

Dates d'inscription aux études

Première soumission

2 décembre 2025

Première soumission répondant aux critères de contrôle qualité

9 septembre 2026

Première publication (Réel)

16 septembre 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

16 septembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

9 septembre 2026

Dernière vérification

1 septembre 2026

Plus d'information

Termes liés à cette étude

Mots clés

Autres numéros d'identification d'étude

  • Changes in Serum Calprotectin

Plan pour les données individuelles des participants (IPD)

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NON

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

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