Monitoring fatigue in breast cancer survivors

REsearch on BrEast Cancer Induced Chronic Conditions Supported by Causal Analysis of Multi-source Data

Helse Stavanger HF · NCT05587777

This study is testing how fatigue affects breast cancer survivors by using smart watches and apps to track their daily activities and energy levels after treatment.

Quick facts

Study typeObservational
Enrollment150 (estimated)
Ages19 Years to 80 Years
SexFemale
SponsorHelse Stavanger HF (other gov)
Drugs / interventionschemotherapy, radiation
Locations1 site (Stavanger)
Trial IDNCT05587777 on ClinicalTrials.gov

What this trial studies

The REBECCA-1 study is an observational research project aimed at monitoring fatigue levels in breast cancer survivors using real-world data collected through electronic patient records, digital devices, and self-reported questionnaires. Participants will be categorized into three groups based on their fatigue levels: high fatigue, low fatigue, and a healthy control group. After completing their cancer treatment, patients will receive a smart watch and mobile app to track their daily activities and fatigue levels over time. This innovative approach aims to provide insights into the long-term effects of cancer treatment on fatigue and overall quality of life.

Who should consider this trial

Good fit: Ideal candidates are female breast cancer patients aged 19 to 80 who are undergoing or have recently completed treatment for stage 0-III breast cancer.

Not a fit: Patients with a previous cancer diagnosis (excluding skin cancer treated only by surgery) or those who do not agree to the study protocol may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to better management strategies for fatigue in breast cancer survivors, improving their quality of life.

How similar studies have performed: This approach of using real-world data to monitor chronic conditions in cancer survivors is novel and has not been extensively tested in similar studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Breast cancer patients with histologically detectable M0 breast cancer (stage 0-III) who require neoadjuvant or adjuvant endocrine, chemo and / or radiation therapy at least and no more than 3 months before initiation of study.
* Female breast cancer patients between 19 and 80 years of age.
* Patients who have increased their life expectancy beyond the first 3 months after starting treatment.
* Patients who have the ability to understand the protocol and can participate in the follow-up plan.
* Patients who have an absence of psychological, familial, sociological or geographical condition that potentially impedes compliance with the study protocol and follow-up plan.

Exclusion criteria:

* Male breast cancer patients.
* Patients who do not agree to the study protocol.
* Patients with a previous cancer diagnosis (excluding skin cancer treated only by surgery).
* Patients who have previously been treated with some form of chemotherapy / radiation therapy.

Where this trial is running

Stavanger

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Breast Cancer, Chronic Fatigue Syndrome, fatigue, breast cancer

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.