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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03757364
Other study ID # UWM/Ps-ENTH.2018/001
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 7, 2018
Est. completion date September 30, 2018

Study information

Verified date November 2018
Source University of Warmia and Mazury
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The primary aim of the study is to assess the effect of methotrexate on the development of distal interphalangeal joint extensor tendon enthesopathy.


Description:

Nail psoriasis is one of the risk factors for psoriatic arthritis (PsA), especially with distal interphalangeal joints affected. Nail changes in psoriasis have been observed in 10-55% of patients, and the nail psoriasis-related inflammation can spread to adjacent structures, including DIP joints and digital extensor tendons. Enthesopathies are among the characteristic features of psoriatic arthritis. In everyday practice, assessment of psoriatic changes in nails is based mainly on clinical indices, such as nail psoriasis severity index (NAPSI) and modified NAPSI (mNAPSI), while imaging examinations, such as ultrasonography are performed much less frequently.

The findings of this study may assess the reasonableness of systemic treatment of nail psoriasis in patients without arthritis as enthesopathy prevention as well as the usability of US nail examinations in Ps and PsA patients in assessment of morphological changes and a response to treatment.

A US examination of nails and distal interphalangeal joint extensor tendons are conducted in all of the patients twice at an interval of six months. The examination is conducted by a rheumatologist experienced in ultrasound examinations of the skeletal and muscular system. An assessment of the nails, extensor tendons and DIP joints is made by placing the head on the dorsal side. In order to avoid pressure on surface tissues, an appropriate amount of gel without gel pads was used. The intensified blood flow, made visible by the PD technique, is confirmed by pulsed wave Doppler spectrum. The nail thickness is measured as the maximum distance between the dorsal and ventral nail plates. The nail bed thickness is measured as the distance between the ventral plate and the bone margin of the distal phalanx. The nail matrix thickness is measured at the proximal end of the nail bed.

The study was approved by the Bioethics Committee of the Warmia and Mazury Chamber of Physicians The study are conducted according to the Good Clinical Practice guidelines. Each participant signs an informed consent and be coded with unique ID.

Results of analyses will be saved by indexing with ID code only, personal data with individual IDs will be saved in additional file. All hard copy will be archived in secure room with coded electronic key.


Recruitment information / eligibility

Status Completed
Enrollment 32
Est. completion date September 30, 2018
Est. primary completion date September 30, 2018
Accepts healthy volunteers No
Gender All
Age group 34 Years to 57 Years
Eligibility Inclusion Criteria:

- Patients with psoriatic changes in nails treated at the Rheumatological Clinic in Olsztyn and the Clinic of Dermatology, Sexually Transmitted Diseases and Clinical Immunology of the University of Warmia and Mazury in Olsztyn, in whom a US examination revealed DIP joint extensor tendon enthesopathy

Exclusion Criteria:

- Patients diagnosed with osteoarthritis of hands, those who work hard physically and those with changes in nails other than caused by psoriasis

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Methotrexate
Methotrexate in the treatment of distal interphalangeal joint extensor tendon enthesopathy in patients with nail psoriasis

Locations

Country Name City State
Poland University of Warmia and Mazury Olsztyn Warminsko-mazurskie

Sponsors (1)

Lead Sponsor Collaborator
Ryszard Górecki

Country where clinical trial is conducted

Poland, 

References & Publications (2)

Krajewska-Wlodarczyk M, Owczarczyk-Saczonek A, Placek W, Wojtkiewicz M, Wiktorowicz A, Wojtkiewicz J. Ultrasound Assessment of Changes in Nails in Psoriasis and Psoriatic Arthritis. Biomed Res Int. 2018 Sep 9;2018:8251097. doi: 10.1155/2018/8251097. eCollection 2018. — View Citation

McGonagle D, Tan AL, Benjamin M. The nail as a musculoskeletal appendage--implications for an improved understanding of the link between psoriasis and arthritis. Dermatology. 2009;218(2):97-102. doi: 10.1159/000182250. Epub 2008 Dec 6. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Effect of Methotrexate on Distal Interphalangeal Joint Extensor Tendon Enthesopathy Ultrasonographic assessment of the effect of methotrexate on the development of distal interphalangeal joint extensor tendon enthesopathy in patients with nail psoriasis. 6 months
Secondary Effect of Methotrexate on Morphological Changes in Psoriatic Nails Ultrasonographic assessment of the effect of methotrexate on morphological changes in psoriatic nails 6 months
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