PT - JOURNAL ARTICLE AU - Nina Paulshus Sundlisæter AU - Anna-Birgitte Aga AU - Inge Christoffer Olsen AU - Hilde Berner Hammer AU - Till Uhlig AU - Désirée van der Heijde AU - Tore K Kvien AU - Siri Lillegraven AU - Espen A Haavardsholm ED - , TI - Clinical and ultrasound remission after 6 months of treat-to-target therapy in early rheumatoid arthritis: associations to future good radiographic and physical outcomes AID - 10.1136/annrheumdis-2017-212830 DP - 2018 Oct 01 TA - Annals of the Rheumatic Diseases PG - 1421--1425 VI - 77 IP - 10 4099 - http://ard.bmj.com/content/77/10/1421.short 4100 - http://ard.bmj.com/content/77/10/1421.full SO - Ann Rheum Dis2018 Oct 01; 77 AB - Objective To explore associations between remission, based on clinical and ultrasound definitions, and future good radiographic and physical outcome in early rheumatoid arthritis (RA).Methods Newly diagnosed patients with RA followed a treat-to-target strategy incorporating ultrasound information in the Aiming for Remission in rheumatoid arthritis: a randomised trial examining the benefit of ultrasound in a Clinical TIght Control regimen (ARCTIC) trial. We defined 6-month remission according to Disease Activity Score, Disease Activity Score in 28 joints-erythrocyte sedimentation rate, American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) Boolean criteria, Simplified Disease Activity Index, Clinical Disease Activity Index and two ultrasound definitions (no power Doppler signal, grey scale score ≤2). Two outcomes were defined: no radiographic progression and good outcome (no radiographic progression+physical function≥general population median), both sustained 12–24 months. We calculated the ORs of these outcomes for the remission definitions.Results Of 103 patients, 42%–82% reached remission at 6 months, dependent on definition. Seventy-one per cent of patients had no radiographic progression and 37% had good outcome. An association between 6-month remission and no radiographic progression was observed for ACR/EULAR Boolean remission (44 joints, OR 3.2, 95% CI 1.2 to 8.4), ultrasound power Doppler (OR 3.6, 95% CI 1.3 to 10.0) and grey scale remission (OR 3.2, 95% CI 1.2 to 8.0). All clinical, but not ultrasound remission criteria were associated with achievement of a good outcome.Conclusions Our data support ACR/EULAR Boolean remission based on 44 joints as the preferred treatment target in early RA. Absence of ultrasound inflammation was associated with no radiographic progression.Trial registration number NCT01205854; Post-results.