Systematic Light Exposure Intervention for Fatigue and Cognitive Efficiency in Pediatric Brain Tumor Survivors
Baylor College of Medicine
Summary
Children and adolescents treated for a brain tumor often experience fatigue and cognitive symptoms, such as slowed information processing and inattention. These symptoms may cause difficulty carrying out daily activities at home and at school. There are few well-researched, non-pharmacological interventions aimed at improving symptoms of fatigue and by extension cognitive symptoms. Systematic bright light exposure has been shown to improve symptoms of fatigue in adult survivors of cancer and children treated for some forms of cancer. This is a pilot/feasibility study and the first known study in children treated for a brain tumor. Findings from this study will be used to help plan a larger study to examine the effectiveness of this intervention and mechanisms of action. PRIMARY OBJECTIVE: 1. To evaluate feasibility and adherence in a study of systematic bright light exposure used to improve fatigue and cognitive efficiency in survivors of pediatric brain tumor, including rates of enrollment, adherence, and acceptability. SECONDARY OBJECTIVES: 2. To estimate the effect size of change in fatigue associated with bright light exposure. 3. To estimate the effect size of change in cognitive efficiency associated with bright light exposure.
Description
Participants will be randomized to take part in one of two groups: 1. The Bright Light Group will be exposed to bright light (1,000 lux at eye level) using light glasses (Luminette Version 3) for a maximum duration of 30 minutes each day from Monday to Friday for a total of 6 weeks. Duration of light exposure will be gradually increased over the first few days until the target of 30 minutes is reached on Day 5. Light duration is for 10 mins on Days 1 \& 2, 20 mins on Days 3 \& 4, and finally, 30 mins on Day 5. 2. The Dim Light Group will be exposed to dim light (equivalent intensity of \<25 l…