RT Journal Article SR Electronic T1 At-home Breast Oncology care Delivered with EHealth solutions (ABODE) study protocol: a randomised controlled trial JF BMJ Open JO BMJ Open FD British Medical Journal Publishing Group SP e091579 DO 10.1136/bmjopen-2024-091579 VO 15 IS 5 A1 Mac, Amanda A1 Kalia, Mohini A1 Reel, Emma A1 Amir, Eitan A1 Isenberg, Adina A1 Kim, Raymond H A1 Kennedy, Erin A1 Koch, C Anne A1 Li, Madeline A1 McCready, David A1 Metcalfe, Kelly A1 Okrainec, Allan A1 Papadakos, Janet A1 Rotstein, Sarah A1 Rodin, Gary A1 Xu, Wei A1 Zhong, Toni A1 The ABODE Study Group A1 Cil, Tulin D YR 2025 UL http://bmjopen.bmj.com/content/15/5/e091579.abstract AB Introduction The COVID-19 pandemic disrupted healthcare delivery for patients with breast cancer. eHealth solutions enable remote care and may improve patient activation, which is defined as having the knowledge, skills and confidence to manage one’s health. Thus, we developed the Breast Cancer Treatment Application (app) for patients and practitioners to use throughout the cancer care continuum. The app facilitates virtual assistance, delivers educational resources, collects patient-reported outcome measures and provides individualised support via volunteer e-coaches. Among newly diagnosed patients with breast cancer, we will compare changes in patient activation, other patient-reported outcomes and health service outcomes over 1 year between those using the app and Fitbit, and those receiving standard care and Fitbit only.Methods and analysis This randomised controlled trial will include 200 patients with breast cancer seen at a tertiary care cancer centre in Ontario, Canada. The intervention group (n=100) will use the app in addition to standard care and Fitbit for 13 months following diagnosis. The control group (n=100) will receive standard care and Fitbit only. Patients will complete questionnaires at enrolment, 6 and 12 months post-diagnosis to measure patient activation (Patient Activation Measure-13 score), distress, anxiety, quality of life and experiences with their care and information received. All patients will also receive Fitbits to measure activity and heart rate. We will also measure wait times and number of visits to ambulatory care services to understand the impact of the app on the use of in-person services.Ethics and dissemination Ethics approval was obtained on 6 January 2023. Protocol version 2.0 was approved on 6 January 2023. The trial is registered with ClinicalTrials.gov. Study findings will be disseminated via publication in a peer-reviewed journal and shared with participants, patient programmes and cancer awareness groups. The app has also been approved as a secure communication method at our trial institution, thus we are well-positioned to support future integration of the app into standard care through collaboration with our hospital network.Trial registration number NCT05989477.