• Pia Grabbe, Milena S Borchers, Kathrin M Gschwendtner, Sophia Strobel, Beate Wild, Marietta Kirchner, Katharina Kälber, Adriana Rendon, Julian Steininger, Friedegund Meier, Jessica C Hassel, and Christiane Bieber.
• Department of General Internal Medicine and Psychosomatics, Center for Psychosocial Medicine, Heidelberg University Hospital, Medical Faculty, Heidelberg University, Heidelberg; Heidelberg University, Medical Faculty, Department of Dermatology and National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and Heidelberg University Hospital, Heidelberg, Germany; Institute of Medical Biometry, Heidelberg University Hospital, Heidelberg; Skin Cancer Center at the University Cancer Centre Dresden and National Center for Tumor Diseases, Dresden, Germany; Department of Dermatology, Faculty of Medicine and University Hospital Carl Gustav Carus at the Technical University Dresden, Dresden, Germany.
• Dtsch Arztebl Int. 2024 Jun 14; 121 (12): 385392385-392.

BackgroundTreatment decisions in metastatic melanoma (MM) are highly dependent on patient preferences and require the patients' involvement. The complexity of treatment options with their individual advantages and disadvantages is often overwhelming. We therefore developed an online patient decision aid (PtDA) to facilitate shared decision making (SDM).MethodsTo evaluate the PtDA we conducted a two-armed, twocenter, prospective, open randomized controlled trial with MM patients who were facing a decision about first-line treatment. The patients were allotted randomly in a 1:1 ratio to an intervention group (IG) with access to the PtDA before discussion with a physician or to a control group (CG) without access to the PtDA. The primary endpoint was knowledge about the options for first-line treatment (multiple-choice test, 10 items, range 0-40 points). The secondary endpoints were the SDM (third-party ratings of audio recordings of the treatment discussions) and satisfaction with the decision at the follow-up visit.ResultsOf the 128 randomized patients, 120 completed the baseline questionnaire and were analyzed (59% male, median age 66 years). The primary endpoint, i.e., the mean difference in knowledge after discussion with a physician, differed significantly between the IG and the CG (-3.22, 95% CI [-6.32; -0.12], p = 0.042). No differences were found for the secondary endpoints, SDM and satisfaction with the decision. The patients in the IG rated the PtDA as very useful.ConclusionThe PtDA improved the knowledge of patients with MM about the options for treatment. Both groups were highly satisfied with their treatment decisions. However, additional physician training seems necessary to promote SDM.

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