• Simon Fifer, Andrea Puig, Vanessa Sequeira, Mustafa Acar, Chee H Ng, Michelle Blanchard, Ariana Cabrera, James Freemantle, and Jennifer Grunfeld.
• Research and Innovation, Community and Patient Preference Research, Sydney, New South Wales, Australia.
• Patient Prefer Adher. 2021 Jan 1; 15: 162116371621-1637.

BackgroundThere is evidence of improved adherence and treatment outcomes when patients' treatment preferences are considered, and shared decision making is utilized.PurposeWe aimed to better understand treatment preferences among Australians with treatment-resistant depression (TRD), focusing on the specific treatment attributes that people value (such as effectiveness, risk of side effects and cost) and their relative importance. The risk-benefit trade-offs that characterize treatment choices were also examined.Patients And MethodsAn online survey of 75 patients with experience of TRD was conducted, consisting of two discrete choice experiment (DCE) components - a medication DCE and a treatment plan DCE. Participants were able to prioritize and trade off different features of medications and treatment plans. Additional questions aimed to better define this population group, which in Australia is poorly understood.ResultsIn both DCEs, two distinct latent classes were identified. In the medication DCE, the classes were distinguished by willingness to consider new treatment alternatives. Participants in class 1 were reluctant to give up current treatment, while those in the slightly larger class 2 preferred new treatment options. In both classes, treatment effectiveness and cost were the greatest contributors to preference. Similar behavior was seen in the treatment plan DCE, with the larger class more likely to choose a new plan over their current treatment arrangement. Participants preferred medications that were low-cost, taken orally, had a high percentage improvement in mood symptoms, high rate of remission and low risk of weight gain. A similar result was found in preferences for treatment plans such that plans with the greatest effectiveness and lowest cost were most favorable.ConclusionPatient preferences should routinely be considered and discussed to guide informed decisions regarding the value of new and existing medications for TRD and how they sit in the context of treatment plans.© 2021 Fifer et al.

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