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Published on: August 1, 2019
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Effects of a Patient Decision Aid for Nonmetastatic Prostate Cancer Established in Routine Care: The Randomized
Johannes Huber1, Philipp Karschuck1, Rainer Koch1
1Department of Urology, Medical Centre, University of Heidelberg, Heidelberg, Germany; Department of Urology, Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany.
European Urology Focus
|September 9, 2025
Summary
An online decision aid for prostate cancer (PC) patients improved consultation efficiency and guideline adherence. While not impacting primary outcomes, it streamlined discussions and enhanced health literacy in shared decision-making.
Area of Science:
- Oncology
- Health Informatics
- Patient Decision Aids
Background:
- Over 21,000 prostate cancer (PC) patients in Germany have used a personalized online decision aid since 2016.
- A randomized controlled trial analyzed the impact of this digital tool on men with nonmetastatic PC.
Purpose of the Study:
- To evaluate the effects of an online decision aid compared to a printed brochure in routine care for nonmetastatic prostate cancer patients.
- To assess impacts on treatment decisions, patient knowledge, communication, and quality of life.
Main Methods:
- The EvEnt-PCA trial randomized 1115 nonmetastatic PC patients across 116 centers.
- Patients were allocated 1:1 to use an online decision aid (intervention) or a printed brochure (control).
- Primary outcome was treatment decision at 14 months; secondary outcomes included knowledge, acceptance, decisional conflict, communication, anxiety, depression, regret, and quality of life.
Main Results:
- No significant differences were observed in primary or secondary endpoints between the intervention and control groups among 1000 patients with complete data.
- The intervention group experienced shorter consultation times (61 vs. 70 minutes) and increased patient preparation summaries (76% vs. 56%).
- Discussions on life expectancy, radiotherapy, rehabilitation, and psycho-oncology were more frequent in the intervention group, alongside increased counseling sessions with general practitioners and radiotherapists.
Conclusions:
- The online decision aid demonstrated structural improvements, notably reducing doctor-patient consultation time.
- Findings suggest enhanced guideline adherence and improved health literacy in the counseling process.
- Successful implementation of this online decision aid can serve as a model for overcoming obstacles in shared decision-making.

