Remote Mindfulness Breathing Training for Patients Undergoing Chemotherapy

This study is a prospective, two‐arm, assessor‐blinded randomized controlled trialinvolving adults with any type of cancer who are receiving chemotherapy in inpatientunits or at the Tri‐Service General Hospital breast surgery outpatient clinic.After providing written informed consent and completing the baseline assessment, eligibleparticipants will be randomly allocated by computer in a 1:1 ratio to the interventiongroup or the control group. The intervention group will receive a mobile‐delivered remotemindfulness breathing training program and will be instructed to practice with a guidedvideo for approximately 5 to 10 minutes daily for 3 weeks. The control group will receiveusual care and one approximately 5‐minute mindfulness breathing stress‐reductioninstruction session.Study assessments will be conducted before the intervention and at the end of week 3.Symptom distress will be assessed using the National Comprehensive Cancer NetworkDistress Thermometer, fatigue using the Brief Fatigue Inventory, anxiety using theGeneralized Anxiety Disorder‐7, and depression using the Patient Health Questionnaire‐9.To reduce measurement bias, the post‐intervention assessment will be conducted by aresearch assistant who is unaware of the participants' group assignments.