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JOURNAL ARTICLE
REVIEW

Dosing down with biologic therapies: a systematic review and clinicians' perspective

Christopher J Edwards, Bruno Fautrel, Hendrik Schulze-Koops, Tom W J Huizinga, Klaus Kruger
Rheumatology 2017 November 1, 56 (11): 1847-1856
28339632
The effectiveness of biologic therapies now means that remission or low disease activity are realistic targets for treatment. However, after achieving remission/low disease activity, the next steps remain unclear. The aim of this publication was to conduct a broad systematic literature review to evaluate dosing down of biologics. After screening papers and abstracts for relevance and application of inclusion/exclusion criteria, a structured extraction process was used to collect information on the included studies. Fifty-two papers were included in the analysis across rheumatic disease. In patients who discontinue therapy, remission is not typically sustained, with reported rates of relapse and flare across early RA (48-54%), established RA (2-84%), axial spondyloarthritis (11-53%) and PsA (44.9%). In many cases, an acceptable disease activity can be regained upon retreatment. More research is needed to understand the long-term impacts of these strategies on efficacy, safety and cost.

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