The Validation of ICBT Clinical Trial: Disease Stress Adjustment in Breast Cancer Patients

Breast cancer and its treatment can cause ongoing emotional distress, including anxiety, depressive symptoms, stress-related reactions, and difficulties adjusting to life after treatment. This study evaluates an 8-week Internet-based cognitive behavioral therapy (ICBT) program designed to support psychological adjustment and improve quality of life among adults with stage I-III breast cancer who have completed primary cancer treatment. Approximately 100 participants will be randomly assigned to either an ICBT group or a control group. Participants in the ICBT group will receive treatment as usual together with the 8-week online program, while participants in the control group will receive treatment as usual alone during the main study period. The study will compare changes in anxiety, depressive symptoms, post-traumatic stress symptoms, and quality of life between the two groups.