AB0770 SYMPTOMS AND IMPACTS IN PSORIATIC ARTHRITIS: FINDINGS FROM QUALITATIVE PATIENT INTERVIEWS
Authors: Alexis Ogdie, Kaleb Michaud, Evo Alemao, Miroslawa Nowak, Rachel Bruce, Kendra Debusk, Sarah Cantor, Carlijn Hintzen, Philip J. Mease
Journal: Annals of the Rheumatic Diseases (2019)

<h3>Background:</h3> Psoriatic arthritis (PsA) is a chronic inflammatory disease resulting in significant symptom burden.<sup>1</sup> Over time and without adequate treatment, PsA can lead to disability and reduced patient quality of life.<sup>2</sup> Fatigue is among the most common symptoms,<sup>1</sup> but is complex and difficult to measure. The most burdensome symptoms that impact PsA patients need to be better understood in order to select patient reported outcomes (PRO) tools that adequately capture these concepts. <h3>Objectives:</h3> 1.) Identify the signs and symptoms of PsA experienced by patients, with a focus on fatigue, and how the disease and its treatment(s) impact patients' lives. 2.) assess the content validity of select PRO instruments and items to measure fatigue. <h3>Methods:</h3> Qualitative interviews were conducted among patients with PsA recruited through the forWARD databank. The most frequently experienced symptoms and impacts of PsA and the degree to which they disturbed patients' lives, were tabulated. Disturbance was evaluated on a scale from 0 (not at all) to 10 (greatly disturbs). Patients reporting fatigue were probed to describe the experience in their own words, and descriptors were recorded. Interviews were conducted and assessed on a rolling basis and recruitment continued until concept saturation was achieved. <h3>Results:</h3> Nineteen PsA patients were interviewed for this study. A core set of PsA symptoms were identified by nearly all patients and with moderate to high average disturbance ratings (Figure 1): joint pain, skin symptoms, stiffness, swollen/inflamed joints, and fatigue. The most salient impacts (Figure 2) were sleep disturbance, physical disability, effects on daily activities, and feelings of frustration. Most common descriptors of fatigue included "fatigue," "tiredness," "lack of energy," "mental fatigue," and "exhaustion." <h3>Conclusion:</h3> Salient symptoms were consistent with those previously reported, along with a broader range of symptoms and impacts, which included fatigue. In addition to physical disability, others such as sleep disturbance, frustration, and effect of daily activities were common high impact themes that emerged. <h3>References</h3> [1] Dures, E., et al. (August2017). Important treatment outcomes for patients with psoriatic arthritis: a multisite qualitative study. Patient (10). Retrieved fromhttps://www.ncbi.nlm.nih.gov/pubmed/28229377 [2] Orbai, a., et al. (April2017). International patient and physician consensus on a psoriatic arthritis core outcome set for clinical trials. Annals of Rheumatic Disorders, 76(4). Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/27613807 <h3>Disclosure of interests:</h3> Alexis Ogdie Grant/research support from: (To my university) Novartis, Pfizer, Grant/research support from: Novartis, Pfizer, Grant/research support from: Novartis, Pfizer, Grant/research support from: Novartis, Pfizer, Consultant for: abbVie, Bristol-Myers Squibb, Celgene, Corrona, Eli Lilly and Company, Novartis, Pfizer, and Takeda, Consultant for: abbVie, amgen, Bristol-Myers Squibb, Celgene, Corrona, Eli Lilly, Novartis, Pfizer inc, Takeda, Consultant for: abbvie, amgen, BMS, Celgene, Corrona, Lilly, Novartis, Pfizer, Takeda, Consultant for: abbvie, amgen, BMS, Celgene, Corrona, Lilly, Novartis, Pfizer, Takeda, Kaleb Michaud Grant/research support from: Pfizer (within past 2 years), Evo alemao Shareholder of: Bristol-Myers Squibb, Employee of: Bristol-Myers Squibb, Miroslawa Nowak Shareholder of: Bristol-Myers Squibb, Employee of: Bristol-Myers Squibb, Rachel Bruce Consultant for: Bristol-Myers Squibb, Kendra DeBusk Shareholder of: Bristol-Myers Squibb, Roche, Employee of: Bristol-Myers Squibb (current), Roche (former), Sarah Cantor Consultant for: Bristol-Myers Squibb, Carlijn Hintzen Consultant for: Bristol-Myers Squibb, Philip J Mease Grant/research support from: abbVie, amgen, BMS, Celgene, Janssen, Lilly, Novartis, Pfizer, SUN and UCB, Consultant for: abbVie, amgen, BMS, Galapagos, Gilead Sciences, inc., Janssen, Lilly, Novartis, Pfizer, SUN and UCB, Speakers bureau: abbVie, amgen, BMS, Celgene, Genentech, Janssen, Lilly, Novartis, Pfizer and UCB