Psoriatic Arthritis Clinical Trial
— IMPAACTOfficial title:
Stereological Quantification of Immune-Competent Cells in Biopsies From Painful Achilles Tendons of Psoriatic Arthritis Patients With Ultrasonic Verified Enthesitis: An Exploratory Prospective Cohort Study
Tendon pathologies (enthesitis) are a characteristic component of psoriatic arthritis (PsA), and are observed in 35% to 50% of PsA patients. The Achilles tendon is one of the most commonly affected sites. This condition often causes great morbidity and loss of quality of life, and response only suboptimal to current intervention strategies. One of the main obstacles for the development of effective treatment methods is that the disease mechanisms remain poorly understood. To our knowledge, no one has yet ascertained the presence and function of immune-competent cells and inflammatory markers in tendons tissue from PsA patients suffering from Achilles enthesitis.
Status | Recruiting |
Enrollment | 30 |
Est. completion date | October 1, 2022 |
Est. primary completion date | July 1, 2022 |
Accepts healthy volunteers | |
Gender | All |
Age group | 18 Years to 70 Years |
Eligibility | Inclusion Criteria: - Fulfilling the CASPAR criteria - Insertional Achilles tendon pain - Ultrasonic findings of inflammatory disease at the painful Achilles tendon insertion (= enthesitis) defined as abnormally hypoechoic (loss of normal fibrillar architecture) and/or thickened tendon at its bony attachment, seen in two perpendicular planes that may exhibit a Doppler signal or bony changes, including enthesophytes, and erosions. Exclusion Criteria: - Other inflammatory rheumatic diseases than PsA - Ultrasonic signs of complete rupture of the Achilles tendon - Not wishing to participate or not suited for project evaluation |
Country | Name | City | State |
---|---|---|---|
Denmark | Odense University Hospital | Odense | |
Denmark | Diagnostic Center | Silkeborg |
Lead Sponsor | Collaborator |
---|---|
Odense University Hospital | Odense Patient Data Explorative Network, The Danish Rheumatism Association, The Psoriasis Association, Denmark, University of Southern Denmark |
Denmark,
Fredberg U, Stengaard-Pedersen K. Chronic tendinopathy tissue pathology, pain mechanisms, and etiology with a special focus on inflammation. Scand J Med Sci Sports. 2008 Feb;18(1):3-15. doi: 10.1111/j.1600-0838.2007.00746.x. Review. — View Citation
Jacques P, Lambrecht S, Verheugen E, Pauwels E, Kollias G, Armaka M, Verhoye M, Van der Linden A, Achten R, Lories RJ, Elewaut D. Proof of concept: enthesitis and new bone formation in spondyloarthritis are driven by mechanical strain and stromal cells. Ann Rheum Dis. 2014 Feb;73(2):437-45. doi: 10.1136/annrheumdis-2013-203643. Epub 2013 Aug 6. — View Citation
Khan KM, Cook JL, Bonar F, Harcourt P, Astrom M. Histopathology of common tendinopathies. Update and implications for clinical management. Sports Med. 1999 Jun;27(6):393-408. Review. — View Citation
Kragsnaes MS, Fredberg U, Stribolt K, Kjaer SG, Bendix K, Ellingsen T. Stereological quantification of immune-competent cells in baseline biopsy specimens from achilles tendons: results from patients with chronic tendinopathy followed for more than 4 years. Am J Sports Med. 2014 Oct;42(10):2435-45. doi: 10.1177/0363546514542329. Epub 2014 Jul 31. — View Citation
McGonagle D, Marzo-Ortega H, O'Connor P, Gibbon W, Hawkey P, Henshaw K, Emery P. Histological assessment of the early enthesitis lesion in spondyloarthropathy. Ann Rheum Dis. 2002 Jun;61(6):534-7. — View Citation
McGonagle DG, Helliwell P, Veale D. Enthesitis in psoriatic disease. Dermatology. 2012;225(2):100-9. doi: 10.1159/000341536. Epub 2012 Oct 27. Review. — View Citation
Ryan C, Korman NJ, Gelfand JM, Lim HW, Elmets CA, Feldman SR, Gottlieb AB, Koo JY, Lebwohl M, Leonardi CL, Van Voorhees AS, Bhushan R, Menter A. Research gaps in psoriasis: opportunities for future studies. J Am Acad Dermatol. 2014 Jan;70(1):146-67. doi: 10.1016/j.jaad.2013.08.042. Epub 2013 Oct 11. Review. — View Citation
Terslev L, Naredo E, Iagnocco A, Balint PV, Wakefield RJ, Aegerter P, Aydin SZ, Bachta A, Hammer HB, Bruyn GA, Filippucci E, Gandjbakhch F, Mandl P, Pineda C, Schmidt WA, D'Agostino MA; Outcome Measures in Rheumatology Ultrasound Task Force. Defining enthesitis in spondyloarthritis by ultrasound: results of a Delphi process and of a reliability reading exercise. Arthritis Care Res (Hoboken). 2014 May;66(5):741-8. doi: 10.1002/acr.22191. Erratum in: Arthritis Care Res (Hoboken). 2017 Feb;69(2):311. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Presence of Immune-competent cells and inflammatory markers | CD3, CD4, CD8, CD20, CD34 (or CD31), CD56, S100 beta (CD57), CD68 (PGM1) or CD163, TNF-alfa, IL-6, IL-23 and other inflammatory markers. | Baseline | |
Secondary | Protein analyses | Protein analyses performed on Achilles tendon tissue | Baseline | |
Secondary | Adverse events | Number of adverse events during follow-up | From baseline to 3-month follow-up |
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