Effectiveness and patient satisfaction of a Dutch patient Decision Aid Psoriasis

Rationale: Patient decision aids (PDAs) are known to improve shared decision making (SDM) in various medical fields. They are scare in dermatology and the effect is never studied.
Objective: To assess the effect of a Dutch PDA Psoriasis ('Keuzehulp Psoriasis - Systemische Medicatie') on the level of SDM (objectively assessed by researchers, and subjectively assessed by patients and dermatologists), patients’ satisfaction with the physician’s consultation and patients decisional conflict’.
Study design: A before-and-after study in two dermatology departments.
Study population: Adult patients with chronic plaque type psoriasis eligible for systemic therapy according to the Dutch national guideline psoriasis.
Intervention (if applicable): A Dutch PDA psoriasis and corresponding implementation training for dermatologists.
Main study parameters/endpoints: Primary study parameter; level of SDM measured with OPTION-5 score and secondary study parameters; level of SDM measured with SDM-Q-9 score, SDM-Q-Doc score and CollaboRATE score; Patient Satisfaction with the consultation measured with VAS score 0-9, and decisional conflict measured with Decisional Conflict Scale.
Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The consultations will be audio taped. The patients who will be asked to use the PDA psoriasis this might take 30 minutes to complete, which can be done at home. The questionnaire for patients takes about 10 minutes to complete, for physicians this is approximately 2 minutes.

Our hypothesis is that the PDA Psoriasis improves the level of SDM (Shared Decision Making) the treatment decision for systemic therapy in patients with psoriasis vulgaris.

Sep 2019 - Jan 2020; before study
Jan 2020 - Feb 2020; after study

A Dutch PDA psoriasis ('Keuzehulp Psoriasis - Systemische Medicatie') and corresponding implementation training for dermatologists.