INTRODUCTION
cancer, ®, Cancer
CANCER, CANCER
Cancer treatments, especially chemotherapy, often require substantial demands on patients and their informal caregivers, including managing an overwhelming amount of information to coordinate treatment and related activities. Comprehensive coordinating efforts are needed to manage chemotherapy treatments that usually include a complex schedule and are associated with significant or even disabling side effects. Additionally, diagnostic testing and other therapeutic modalities (e.g., surgery and radiation) may require multiple visits with different providers at various locations.The increasing penetration of smartphones across socioeconomic groups in the United States can be leveraged by individuals dealing with cancer to support their efforts to manage their health, coordinate appointments, and keep track of treatment notes and questions.We designed this randomized controlled trial to evaluate the usability of a patient‐facing application (app) and test its impact on patients' quality of life and health care utilization. The app, LivingWith®, was developed by Pfizer to support individuals undergoing cancer treatment. Changes in these endpoints were evaluated from baseline to 3 months after the intervention relative to the control group.