Cognitive-Behavioral Stress Management Device for the Treatment of Anxiety and Depressive Symptoms in Patients With Stage I-III Breast or Lung Cancer

This phase II trial studies the effect of a digital application (app), BNT001, on cognitive-behavioral stress management in patients with stage I-III breast or lung cancer. The app is designed for cancer patients to treat anxiety and depressive symptoms related to their cancer diagnosis. The purpose of this study is to develop and refine procedures for eligibility screening, suicide risk assessment, and delivery of the app prior to the launch of a phase III randomized trial. The impact of the app in managing stress and improving quality of life and mood is a secondary aim.