Pain mechanisms and ultrasonic inflammatory activity as prognostic factors in patients with psoriatic arthritis: protocol for a prospective, exploratory cohort study
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Pain mechanisms and ultrasonic inflammatory activity as prognostic factors in patients with psoriatic arthritis : protocol for a prospective, exploratory cohort study. / Højgaard, Pil; Christensen, Robin; Dreyer, Lene; Mease, Philip; de Wit, Maarten; Skov, Lone; Glintborg, Bente; Christensen, Anton Wulf; Ballegaard, Christine; Bliddal, Henning; Bukhave, Kristine; Bartels, Else Marie; Amris, Kirstine; Ellegaard, Karen; Kristensen, Lars Erik.
In: B M J Open, Vol. 6, No. 4, 15.04.2016, p. e010650.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Pain mechanisms and ultrasonic inflammatory activity as prognostic factors in patients with psoriatic arthritis
T2 - protocol for a prospective, exploratory cohort study
AU - Højgaard, Pil
AU - Christensen, Robin
AU - Dreyer, Lene
AU - Mease, Philip
AU - de Wit, Maarten
AU - Skov, Lone
AU - Glintborg, Bente
AU - Christensen, Anton Wulf
AU - Ballegaard, Christine
AU - Bliddal, Henning
AU - Bukhave, Kristine
AU - Bartels, Else Marie
AU - Amris, Kirstine
AU - Ellegaard, Karen
AU - Kristensen, Lars Erik
N1 - Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/
PY - 2016/4/15
Y1 - 2016/4/15
N2 - INTRODUCTION: Persistent pain is a major concern for patients with psoriatic arthritis (PsA). Pain may be due to inflammatory activity or augmented central pain processing. Unawareness of the origin and mechanisms of pain can lead to misinterpretation of disease activity (by composite scores) and erroneous treatments. Ultrasonography (US) is a highly sensitive method to detect tissue inflammation. Evaluating pain mechanisms in relation to US measures may prove valuable in predicting response to treatment in PsA.AIMS: To study the association and prognostic value of pain mechanisms, ultrasonic activity and clinical outcomes in patients with PsA who intensify antirheumatic treatment.METHODS AND ANALYSES: 100 participants >18 years of age with PsA who initiate or switch antirheumatic treatment (biologicals and/or conventional synthetic disease-modifying antirheumatic drugs (DMARDs)) will be prospectively recruited from outpatient clinics in Copenhagen. All data (demographics, clinical, imaging, blood samples and patient-reported outcomes) will be collected at baseline and after 4 months. Pain is assessed by the PainDETECT Questionnaire, Visual Analogue Scale for pain, Swollen to Tender Joint Count Ratio, Widespread Pain Index and tender point examination. The association between pain variables and clinical/US characteristics will be described by correlation analyses. The predictive value of pain measures and baseline US scores on treatment response will be analysed with regression models. Outcomes are composite and clinical, as well as patient reported.ETHICS AND DISSEMINATION: The study is approved by the ethics committee of the Capital Region of Denmark (H-15009080) and has been designed in cooperation with patient research partners. The study is registered at clinicaltrials.gov (number NCT02572700). Results will be disseminated through publication in international peer-reviewed journals.TRIAL REGISTRATION NUMBER: NCT02572700, Pre-results.
AB - INTRODUCTION: Persistent pain is a major concern for patients with psoriatic arthritis (PsA). Pain may be due to inflammatory activity or augmented central pain processing. Unawareness of the origin and mechanisms of pain can lead to misinterpretation of disease activity (by composite scores) and erroneous treatments. Ultrasonography (US) is a highly sensitive method to detect tissue inflammation. Evaluating pain mechanisms in relation to US measures may prove valuable in predicting response to treatment in PsA.AIMS: To study the association and prognostic value of pain mechanisms, ultrasonic activity and clinical outcomes in patients with PsA who intensify antirheumatic treatment.METHODS AND ANALYSES: 100 participants >18 years of age with PsA who initiate or switch antirheumatic treatment (biologicals and/or conventional synthetic disease-modifying antirheumatic drugs (DMARDs)) will be prospectively recruited from outpatient clinics in Copenhagen. All data (demographics, clinical, imaging, blood samples and patient-reported outcomes) will be collected at baseline and after 4 months. Pain is assessed by the PainDETECT Questionnaire, Visual Analogue Scale for pain, Swollen to Tender Joint Count Ratio, Widespread Pain Index and tender point examination. The association between pain variables and clinical/US characteristics will be described by correlation analyses. The predictive value of pain measures and baseline US scores on treatment response will be analysed with regression models. Outcomes are composite and clinical, as well as patient reported.ETHICS AND DISSEMINATION: The study is approved by the ethics committee of the Capital Region of Denmark (H-15009080) and has been designed in cooperation with patient research partners. The study is registered at clinicaltrials.gov (number NCT02572700). Results will be disseminated through publication in international peer-reviewed journals.TRIAL REGISTRATION NUMBER: NCT02572700, Pre-results.
KW - Antirheumatic Agents
KW - Arthritis, Psoriatic
KW - Disease Progression
KW - Female
KW - Humans
KW - Inflammation
KW - Male
KW - Pain
KW - Pain Measurement
KW - Prognosis
KW - Prospective Studies
KW - Remission Induction
KW - Severity of Illness Index
KW - Treatment Outcome
KW - Journal Article
KW - Research Support, Non-U.S. Gov't
U2 - 10.1136/bmjopen-2015-010650
DO - 10.1136/bmjopen-2015-010650
M3 - Journal article
C2 - 27084281
VL - 6
SP - e010650
JO - BMJ Open
JF - BMJ Open
SN - 2044-6055
IS - 4
ER -
ID: 173989351