Measure the quality of life of patients with metastatic breast cancer treated with Palbociclib and endocrine therapy using the Functional Assessment of Cancer Therapy - Breast and EuroQol -5D - European quality of life in five dimensions and compare the group using the Wecancer digital health app with the group using Wecancer and the physical activity monitoring smartwatch.
Combining a fitness tracker technology with real-time patient-reported outcome monitoring associated with interventions through a health care app is a novel strategy to evaluate metastatic breast cancer patients using Palbociclib and endocrine treatment.