The primary goal of this study is to assess the impact of an app that reminds patients treated with hypofractionated radiotherapy (HF-RT) for prostate cancer to drink water prior to each radiotherapy session on the number of bladder volumes \<200 ml during the HF-RT course and to demonstrate that this number is lower than without using an app (historical control group).
Histologically proven prostate cancer
Indication for definitive HF-RT
Possession of and ability to use a smartphone
Bladder volume at CT-simulation <200 ml
Radiotherapy of pelvic lymph nodes
Expected non-compliance
Single group
Reminder App
DeviceThe purpose of the app is to remind patients irradiated for prostate cancer in an intuitive, unobtrusive and supportive way to drink 300 ml of water 45 minutes prior to each radiation session.
Number of fractions with bladder volumes <200 ml at the end of the radiotherapy course
The primary endpoint is the number of radiation fractions with bladder volumes \<200 ml at the end of the radiotherapy course. The bladder volume at each radiation fraction is calculated from the corresponding Cone-Beam Computed Tomography (CBCT).
Rate of patient satisfaction with the reminder app
Patient satisfaction with the reminder app will be assessed with a specific questionnaire.
Degree of the impact of the reminder app
The impact of the reminder app on the use of health technology will be assessed with a specific questionnaire.
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University Hospital Schleswig-Holstein
Lead sponsor
University of Southern Denmark
Collaborator
University of the Basque Country (UPV/EHU)
Collaborator
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