Boehncke WH, Menter A. Burden of disease: psoriasis and psoriatic arthritis. Am J Clin Dermatol. 2013;14:377–88.
Article
PubMed
Google Scholar
Mease PJ, Armstrong AW. Managing patients with psoriatic disease: the diagnosis and pharmacologic treatment of psoriatic arthritis in patients with psoriasis. Drugs. 2014;74:423–41.
Article
PubMed
PubMed Central
CAS
Google Scholar
Kavanaugh A, Helliwell P, Ritchlin CT. Psoriatic arthritis and burden of disease: patient perspectives from the population-based multinational assessment of psoriasis and psoriatic arthritis (MAPP) survey. Rheumatol Ther. 2016;3:91–102.
Article
PubMed
PubMed Central
Google Scholar
Sokoll KB, Helliwell PS. Comparison of disability and quality of life in rheumatoid and psoriatic arthritis. J Rheumatol. 2001;28:1842–6.
PubMed
CAS
Google Scholar
Gladman DD. Clinical features and diagnostic considerations in psoriatic arthritis. Rheum Dis Clin N Am. 2015;41:569–79.
Article
Google Scholar
Coates LC, Helliwell PS. Treating to target in psoriatic arthritis: how to implement in clinical practice. Ann Rheum Dis. 2016;75:640–3.
Article
PubMed
CAS
Google Scholar
Coates LC, Helliwell PS. Defining low disease activity states in psoriatic arthritis using novel composite disease instruments. J Rheumatol. 2016;43:371–5.
Article
PubMed
CAS
Google Scholar
Mease PJ. Psoriatic arthritis: update on pathophysiology, assessment and management. Ann Rheum Dis. 2011;70(Suppl 1):i77–84.
Article
PubMed
Google Scholar
Smolen JS, Schoels M, Aletaha D. Disease activity and response assessment in psoriatic arthritis using the disease activity index for PSoriatic arthritis (DAPSA) A brief review. Clin Exp Rheumatol. 2015;33:S48–50.
PubMed
Google Scholar
Coates LC, Fransen J, Helliwell PS. Defining minimal disease activity in psoriatic arthritis: a proposed objective target for treatment. Ann Rheum Dis. 2010;69:48–53.
Article
PubMed
CAS
Google Scholar
Coates LC, Helliwell PS. Validation of minimal disease activity criteria for psoriatic arthritis using interventional trial data. Arthritis Care Res (Hoboken ). 2010;62:965–9.
Article
PubMed
Google Scholar
Coates LC, Moverley AR, McParland L, Brown S, Navarro-Coy N, O'Dwyer JL, et al. Effect of tight control of inflammation in early psoriatic arthritis (TICOPA): a UK multicentre, open-label, randomised controlled trial. Lancet. 2015;386:2489–98.
Article
PubMed
PubMed Central
Google Scholar
Coates LC, Navarro-Coy N, Brown SR, Brown S, McParland L, Collier H, et al. The TICOPA protocol (TIght COntrol of psoriatic arthritis): a randomised controlled trial to compare intensive management versus standard care in early psoriatic arthritis. BMC Musculoskelet Disord. 2013;14:101.
Article
PubMed
PubMed Central
Google Scholar
Kavanaugh A, van der Heijde D, Beutler A, Gladman D, Mease P, Krueger GG, et al. Radiographic progression of patients with psoriatic arthritis who achieve minimal disease activity in response to Golimumab therapy: results through 5 years of a randomized, placebo-controlled study. Arthritis Care Res (Hoboken ). 2016;68:267–74.
Article
CAS
Google Scholar
Coates LC, Cook R, Lee KA, Chandran V, Gladman DD. Frequency, predictors, and prognosis of sustained minimal disease activity in an observational psoriatic arthritis cohort. Arthritis Care Res (Hoboken ). 2010;62:970–6.
Article
PubMed
Google Scholar
Mease PJ, van der Heijde D, Ritchlin CT, Okada M, Cuchacovich RS, Shuler CL, et al. Ixekizumab, an interleukin-17A specific monoclonal antibody, for the treatment of biologic-naive patients with active psoriatic arthritis: results from the 24-week randomised, double-blind, placebo-controlled and active (adalimumab)-controlled period of the phase III trial SPIRIT-P1. Ann Rheum Dis. 2017;76:79–87.
Article
PubMed
CAS
Google Scholar
Coates LC, Husni ME, Shuler CL, Carton L, Lin CY, Mou J, et al. Ixekizumab provides sustained improvement up to 52 weeks of disease activity as assessed by composite measure scores in biologic disease-modifying Antirheumatic drug (bDMARD)-naive patients with active psoriatic arthritis. Ann Rheum Dis. 2016;75:349–50.
Google Scholar
Nash P, Kirkham B, Okada M, Rahman P, Combe B, Burmester GR, et al. Ixekizumab for the treatment of patients with active psoriatic arthritis and an inadequate response to tumour necrosis factor inhibitors: results from the 24-week randomised, double-blind, placebo-controlled period of the SPIRIT-P2 phase 3 trial. Lancet. 2017;389:2317–27.
Article
PubMed
CAS
Google Scholar
Taylor W, Gladman D, Helliwell P, Marchesoni A, Mease P, Mielants H. Classification criteria for psoriatic arthritis: development of new criteria from a large international study. Arthritis Rheum. 2006;54:2665–73.
Article
PubMed
Google Scholar
EQ-5D Value Sets. Inventory, comparative review and user guide. Dordrecht: Springer; 2007.
Google Scholar
Ware J, Kosinski M, Dewey JE. How to score version 2 of the SF-36 health survey. Lincoln, RI: QualityMetric, Inc; 2001.
Google Scholar
Ware J, Kosinski M, Dewey JE. Version 2 of the SF-36 health survey. Lincoln, RI: QualityMetric, Inc; 2003.
Google Scholar
Dolan P. Modeling valuations for EuroQol health states. Med Care. 1997;35:1095–108.
Article
PubMed
CAS
Google Scholar
Brooks R. EuroQol: the current state of play. Health Policy. 1996;37:53–72.
Article
PubMed
CAS
Google Scholar
Smolen JS, Schols M, Braun J, Dougados M, FitzGerald O, Gladman DD, et al. Treating axial spondyloarthritis and peripheral spondyloarthritis, especially psoriatic arthritis, to target: 2017 update of recommendations by an international task force. Ann Rheum Dis 2017; doi: https://doi.org/10.1136/annrheumdis-2017-211734.
Orbai AM, de Wit M, Mease P, Shea JA, Gossec L, Leung YY, et al. International patient and physician consensus on a psoriatic arthritis core outcome set for clinical trials. Ann Rheum Dis. 2017;76:673–80.
Article
PubMed
Google Scholar
Taft C, Karlsson J, Sullivan M. Do SF-36 summary component scores accurately summarize subscale scores? Qual Life Res. 2001;10:395–404.
Article
PubMed
CAS
Google Scholar
Hojgaard P, Glintborg B, Kristensen LE, Gudbjornsson B, Love TJ, Dreyer L. The influence of obesity on response to tumour necrosis factor-alpha inhibitors in psoriatic arthritis: results from the DANBIO and ICEBIO registries. Rheumatology (Oxford). 2016;55:2191–9.
Article
CAS
Google Scholar
van Mens LJJ, Turina MC, van de Sande MGH, Nurmohamed MT, van Kuijk AWR, Baeten DLP. Residual disease activity in psoriatic arthritis: discordance between the rheumatologist's opinion and minimal disease activity measurement. Rheumatology (Oxford). 2017; https://doi.org/10.1093/rheumatology/kex183.
Queiro R, Canete JD, Montilla C, Abad M, Montoro M, Gomez S, et al. Minimal disease activity and impact of disease in psoriatic arthritis: a Spanish cross-sectional multicenter study. Arthritis Res Ther. 2017;19:72.
Article
PubMed
PubMed Central
Google Scholar
Gossec L, de Wit M, Kiltz U, Braun J, Kalyoncu U, Scrivo R, et al. A patient-derived and patient-reported outcome measure for assessing psoriatic arthritis: elaboration and preliminary validation of the psoriatic arthritis impact of disease (PsAID) questionnaire, a 13-country EULAR initiative. Ann Rheum Dis. 2014;73:1012–9.
Article
PubMed
Google Scholar