JOURNAL ARTICLE
MULTICENTER STUDY
RANDOMIZED CONTROLLED TRIAL
RESEARCH SUPPORT, NON-U.S. GOV'T
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Treatment preferences of patients with early rheumatoid arthritis: a discrete-choice experiment.

Rheumatology 2016 November
OBJECTIVE: To quantify the preferences of patients with early RA (ERA) with the benefits and harms of DMARDs.

METHODS: We assessed patients' preferences using a discrete-choice experiment, an experimentally designed survey to measure trade-offs. Consecutive adult patients with ERA (<2 years since diagnosis) were presented 13 different sets of three treatment options described by eight attributes (clinical outcomes, risks and dosing regimens) and asked to choose one. From patients' responses we estimated the average importance of each attribute and explored preference heterogeneity through latent-class analysis.

RESULTS: A total of 152 patients completed the survey (86% response rate): mean age 52 years, 63% female, disease duration 7.8 months. Treatment benefits (increasing the chance of a major symptom improvement and reducing the chance of serious joint damage) were most important. Of potential adverse events, a small risk of serious infections/possible increased risk of cancer was most important. Patients were willing to accept this risk for a 15% absolute increase in the chance of a major symptom improvement. Patients had an aversion to i.v. therapy, but were relatively indifferent to other dosing regimens. Through latent-class analysis, we identified two patient groups: 54% who were more risk averse, particularly to a possible risk of cancer/infection, and others who were highly benefit-driven.

CONCLUSION: On average, patients with ERA were risk tolerant, but important differences in preferences were identified. In particular, a subgroup of patients may prefer to avoid treatments with a possible increased risk of cancer/infection if other effective options are available.

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