PT  - JOURNAL ARTICLE
AU  - RADES, DIRK
AU  - DZIGGEL, LIESA
AU  - NARVAEZ-WOLF, CARLOS A.
AU  - RADTKE, MAIKE
AU  - STAACKMANN, CHRISTIAN
AU  - HOLM, HANNE SPANGSBERG
AU  - KRISTIANSEN, CHARLOTTE
TI  - Usability of a Reminder App that May Help to Reduce Radiotherapy-related Skin Toxicity in Patients With Breast Cancer
AID  - 10.21873/invivo.14329
DP  - 2026 May 01
TA  - In Vivo
PG  - 1768--1775
VI  - 40
IP  - 3
4099  - http://iv.iiarjournals.org/content/40/3/1768.short
4100  - http://iv.iiarjournals.org/content/40/3/1768.full
SO  - In Vivo2026 May 01; 40
AB  - Background/Aim: Patients irradiated for breast cancer may experience acute skin toxicity. To reduce this risk, a mobile application was created which reminds patients to carry out skin care. Before using this app in patients, a pre-study evaluating its usability in healthy volunteers was required.Patients and Methods: In this prospective study, 30 healthy volunteers from Germany and Denmark were asked to test the app and complete a questionnaire including ten statements (“yes or “no”) in three sections.Results: Satisfaction rates (statements affirmed with “yes”) were 66.7% (18/27 participants) and 78.6% (22/28) in the section “download and installation”, and 100% (29/29) and 96.7% (29/30) in the section “navigation”. In the section “content/functions”, the six statements were addressed by 28-30 participants; satisfaction rates were 86.7% to 100% (median 96.5%). Dichotomous responses were supplemented by individual comments.Conclusion: This study revealed that the reminder app needed improvement before tested in patients and demonstrated the importance of a pre-study in healthy volunteers.