Prevalence of Psoriatic Arthritis Patients Achieving Minimal Disease Activity in Real-world Studies and Randomized Clinical Trials: Systematic Review with Metaanalysis

J Rheumatol. 2020 Jun 1;47(6):839-846. doi: 10.3899/jrheum.190677. Epub 2019 Oct 1.

Abstract

Objective: To estimate the frequency of patients with psoriatic arthritis (PsA) achieving minimal disease activity (MDA) status in real-world studies and randomized controlled trials (RCT).

Methods: A systematic literature search for 2009-2017 was performed in PubMed, Embase, Cochrane Library, and LILACS. Study selection and data extraction were performed by 2 independent researchers. Random-effects single-arm metaanalyses were performed and heterogeneity was assessed using I2.

Results: A total of 405 records were identified and 45 studies were analyzed: 39 (86.7%) observational studies and 6 (13.3%) RCT; they included 12,469 patients. The overall prevalence of MDA in cross-sectional studies was 35% (95% CI 30%-41%, I2 = 94%), varying from 17% (95% CI 7%-34%) in patients taking synthetic disease-modifying antirheumatic drugs (DMARD) to 57% (95% CI 41%-71%) in those taking biological DMARD. Prevalence of MDA in cohort studies increased with longer followup time, ranging from 25% (95% CI 15%-40%) with 3- to 4-month followup to 42% (95% CI 38%-45%) with > 24-month followup. Patients with PsA receiving biological DMARD in a real-world context and RCT had similar prevalence of MDA at 6-month followup: 30% (95% CI 21%-41%, I2 = 85%) versus 32% (95% CI 26%-39%, I2 = 79%), respectively.

Conclusion: Patients with PsA included in real-world studies had similar prevalence of MDA compared to those in controlled clinical trials. This finding suggests that MDA is a useful treatment target for PsA in the real-world setting.

Keywords: OBSERVATIONAL STUDIES; PSORIATIC ARTHRITIS; RANDOMIZED CONTROLLED TRIALS.

Publication types

  • Meta-Analysis
  • Research Support, Non-U.S. Gov't
  • Systematic Review

MeSH terms

  • Antirheumatic Agents* / therapeutic use
  • Arthritis, Psoriatic* / drug therapy
  • Arthritis, Psoriatic* / epidemiology
  • Cohort Studies
  • Humans
  • Prevalence
  • Severity of Illness Index
  • Treatment Outcome

Substances

  • Antirheumatic Agents