App-Based Lifestyle Intervention (PINK! Coach) in Breast Cancer Patients-A Real-World-Data Analysis

Area of Science:

• Oncology
• Digital Health
• Lifestyle Medicine

Background:

• Overweight and inactivity worsen breast cancer recurrence, survival, and quality of life.
• Lifestyle interventions are crucial for managing breast cancer patients' well-being.
• The PINK! Coach app aims to promote sustainable lifestyle changes during and after cancer therapy.

Purpose of the Study:

• To investigate the real-world effects of the PINK! Coach app on body mass index (BMI) and physical activity.
• To assess the app's impact on breast cancer patients undergoing chemotherapy (CHT) or antihormone therapy (AHT).

Main Methods:

• Retrospective analysis of real-world data from the PINK! Coach app over 6 months.
• Data collected at baseline, 12 weeks (T1), and 24 weeks (T2).
• Inclusion of patients undergoing acute therapies (CHT, AHT) or follow-up care.

Main Results:

• Consistent BMI maintenance across most patients; significant BMI reduction in overweight patients on AHT (p < 0.01).
• Significant overall BMI reduction observed in patients undergoing CHT (p = 0.01).
• All patients demonstrated significant increases in daily step count and physical activity duration.

Conclusions:

• The PINK! Coach app shows promise in supporting breast cancer patients' lifestyle modifications.
• The app's effectiveness spans diverse patient groups, including various ages, tumor stages, and therapies.
• Further long-term data is needed to fully contextualize these findings within current research.