Self-reported health outcomes in patients with psoriasis and psoriatic arthritis randomized to two etanercept regimens

R Gniadecki, David Robertson, C T Molta, B Freundlich, R Pedersen, W Li, R Boggs, A S Zbrozek

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Abstract

Background Moderate/severe psoriasis combined with psoriatic arthritis (PsA) impairs health-related quality of life (QoL). Etanercept, a fully human tumour necrosis factor-a receptor fusion protein, is approved for treatment of both diseases. Objective To compare patient-reported health outcomes (PROs) of two etanercept regimens in patients with moderate/severe psoriasis and PsA. Methods In this randomized, double-blind, multicenter study, participants received etanercept 50 mg twice weekly (BIW; n = 379) or 50 mg weekly (QW; n = 373) for 12 weeks and open-label etanercept 50 mg QW for 12 additional weeks. PROs included: the EuroQOL-5D (EQ-5D), which measures general health status and consists of the utility index measuring five dimensions of health, and a visual analogue scale (VAS) allowing patients to assess health status; the Dermatology Life Quality Index (DLQI), which measures the impact of skin disease on QoL; the Health Assessment Questionnaire-Disability Index (HAQ-DI), an assessment of physical function; the Hospital Anxiety and Depression Scale (HADS), which screens for anxiety and depression symptoms; and individual questions on general health, disease activity, fatigue, itching, joint pain and morning stiffness. Results At baseline, patients reported QoL worse than that seen in many chronic medical conditions. Significant within-group improvements in each PRO occurred from baseline to Week 12 (P

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