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Σάββατο 19 Ιανουαρίου 2019

Real-World Postmarketing Study of the Impact of Adalimumab Treatment on Work Productivity and Activity Impairment in Patients with Psoriatic Arthritis

Abstract

Introduction

This study investigated the effectiveness of adalimumab treatment in improving Work Productivity and Activity Impairment (WPAI) in patients with psoriatic arthritis (PsA) in real-world settings in Japan.

Methods

This 24-week, single-arm, postmarketing surveillance study (2014–2017), conducted at 75 centers in Japan, enrolled adalimumab-naïve patients (paid workers, including part-time) meeting ClASsification criteria for Psoriatic ARthritis (CASPAR). The primary endpoint was improvement in overall work impairment (OWI) scores from baseline to week 24. Secondary endpoints included changes in WPAI-PsA (OWI, absenteeism, presenteeism, and activity impairment), Psoriasis Area and Severity Index (PASI), psoriatic arthritis screening and evaluation (PASE) scores, Disease Activity Scores in 28 joints using C-reactive protein (DAS28[CRP]), Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) scores, Health Assessment Questionnaire-Disability Index (HAQ-DI) scores, and PASI75/90 and American College of Rheumatology (ACR) 20/50/70 rates.

Results

In the effectiveness population (n = 106; 72.6% men; mean ± standard deviation [SD] age, 49.3 ± 10.7 years), OWI scores significantly improved (mean ± SD change, − 25.2 ± 35.3; p < 0.0001) from baseline to week 24. Other WPAI domain scores also improved significantly. Changes in OWI were significantly correlated (p < 0.0001) with PASE (r = 0.6284), DAS28(CRP) (r = 0.6059), BASDAI (r = 0.7281), and HAQ-DI (r = 0.6161) scores and were significantly influenced by previous nonsteroidal anti-inflammatory drug use (p = 0.0142), and baseline PASE (p = 0.0098), DAS28(CRP) (p = 0.0026), HAQ-DI (p = 0.0004), and BASDAI (p < 0.0001) scores. At the last evaluation, rate (95% confidence interval) of PASI 75 and 90 (n = 100) was 58.0% (47.7–67.8) and 39.0% (29.4–49.3), respectively, and that of ACR 20, 50, and 70 (n = 58) was 86.2% (74.6–93.9), 70.7% (57.3–81.9), and 53.4% (39.9–66.7), respectively. No new safety signals were observed in the safety population (n = 148).

Conclusion

Adalimumab treatment improved WPAI in patients with PsA. Improvements in OWI and joint symptoms were significantly associated.

Trial Registration Number

ClinicalTrials.gov identifier: NCT02414633.

Funding

AbbVie GK and Eisai Co., Ltd.



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