DAPSA, DAS28 and MDA predict long-term treatment regime in psoriatic arthritis. The Swedish Early Psoriatic Arthritis Cohort

Ulla Lindqvist, Mona Lisa Wernroth, Tomas Husmark, Per Larsson, Mats Geijer, Annika Teleman, Elke Theander, Gerd Marie Alenius

Research output: Contribution to journalArticlepeer-review

Abstract

Objective To describe treatment patterns in the Swedish early psoriatic arthritis cohort (SwePsA) of the mono-/oligo-arthritic (M/O) and polyarthritis (P) and identify early predictive factors for treatment with disease-modifying anti-rheumatic (DMARD), non-steroidal anti-inflammatory drugs (NSAID), and tumour necrosis factor inhibition (TNFi) after 5 years. Methods Data for 198 M/O and P PsA were obtained within the programme for SwePsA. Multinomial and binary logistic regression analyses were used to assess the association between early predictive factors and treatment after 5 years adjusted for age at inclusion. The analysis of DMARD/NSAID was adjusted for medication at inclusion. Results After inclusion visit, DMARD was prescribed in 30% of M/O and 56% of P PsA; mainly methotrexate. TNFi was not prescribed at inclusion, but 23 patients were treated at 5-year follow-up. The adjusted OR (95% CI) for treatment with both DMARD and NSAID after 5 years was 3.65 (1.34 - 9.89) (p=0.010) for Disease Activity Score 28 (DAS28) > 3.2 and 2.90 (1.20-6.99) (p=0.038) for Disease Activity Index in Psoriatic Arthritis (DAPSA) > 14 at inclusion. TNFi treatment was, after adjusting for age, associated with high erythrocyte sedimentation rate (p=0.0043), high C-reactive protein (p=0.013), DAPSA (p < 0.001), not reaching minimal disease activity (p=0.001) high health assessment questionnaire (p=0.001), patient's overall assessment on the visual analogue scale (VAS) (p=0.009), high pain VAS (p=0.007), and high number of tender and swollen joints (p=0.031) at inclusion. Conclusion Disease activity in early M/O and P PsA is to be considered in deciding the level of health care assessment and future pharmacological treatment. DAS28 > 3.2 and DAPSA > 14 early in the disease predict subsequent treatment with DMARD. For prediction of biological treatment, not reaching MDA at onset of disease, would be the composite index of choice.

Original languageEnglish
Pages (from-to)936-942
Number of pages7
JournalClinical and Experimental Rheumatology
Volume35
Issue number6
Publication statusPublished - 2017 Nov 1

Subject classification (UKÄ)

  • Dermatology and Venereal Diseases

Free keywords

  • DMARD
  • Minimal disease activity
  • NSAID
  • Remission
  • TNF-inhibition

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