Trial reportJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2018
The Effect of Systematic Light Exposure on Sleep in a Mixed Group of Fatigued Cancer Survivors.
Trial report in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 33 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Treating Cancer-Related Fatigue Through Systematic Light Exposure
Light Therapy to Treat Cancer-related Fatigue, Sleep Problems, Depression and Cognitive Impairment Among Breast Cancer Patients.
Who cites it
33 citing papers in PubMed, 3 syntheses or guidelines pooled it, 62 citations in OpenAlex.
- Interventions for insomnia in cancer patients and survivors-a comprehensive systematic review and meta-analysis.JNCI cancer spectrum · 2024Pooled it
- Effects of sleep interventions on cancer-related fatigue and quality of life in cancer patients: a systematic review and meta-analysis.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2022Pooled it
- Strategies for Implementing Palliative Care Services for Cancer Patients in Low- and Middle-Income Countries: A Systematic Review.Inquiry : a journal of medical care organization, provision and financingPooled it
- A circadian and app-based personalized lighting intervention for the reduction of cancer-related fatigue.Cell reports. Medicine · 2025Trial
- Effects of chronotype-tailored bright light intervention on post-treatment symptoms and quality of life in breast cancer survivors.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2023Trial
- Examining the Efficacy of Bright Light Therapy on Cognitive Function in Hematopoietic Stem Cell Transplant Survivors.Journal of biological rhythms · 2022Trial
- Moderators of Cognitive Therapy and Bright Light Therapy Effects on Depressive Symptoms in Patients with Breast Cancer.International journal of behavioral medicine · 2019Trial
- Trial
- Association between light exposure patterns and multidimensional health outcomes in individuals with myalgic encephalomyelitis/chronic fatigue syndrome: findings from an observational cross-sectional cohort study.Journal of translational medicine · 2026Observational
- Molecular Mechanisms of Symptom Fluctuations in Malignant Tumor Patients: Stable by Day and Severe at Night.Journal of Cancer · 2026Review
- Article
- Skeletal muscle gene expression dysregulation in long-term spaceflights and aging is clock-dependent.NPJ microgravity · 2023Article
- Living as a Survivor: Sleep Disturbance, Fatigue, Depressive Mood, and Cognitive Dysfunction After Breast Cancer Treatment.Cancer nursing · 2023Article
- TimeTeller for timing health: The potential of circadian medicine to improve performance, prevent disease and optimize treatment.Frontiers in digital health · 2023Article
- The effect of light therapy on sleep quality in cancer patients: a systematic review and meta-analysis of randomized controlled trials.Frontiers in psychiatry · 2023Review
- Chronodisruption and Ambulatory Circadian Monitoring in Cancer Patients: Beyond the Body Clock.Current oncology reports · 2022Review
- Optimizing a Behavioral Sleep Intervention for Gynecologic Cancer Survivors: Study Design and Protocol.Frontiers in neuroscience · 2022Article
- Preventing Sleep Disruption With Bright Light Therapy During Chemotherapy for Breast Cancer: A Phase II Randomized Controlled Trial.Frontiers in neuroscience · 2022Article
- Treatment with morning blue light increases left amygdala volume and sleep duration among individuals with posttraumatic stress disorder.Frontiers in behavioral neuroscience · 2022Article
- Circadian disruption and cancer- and treatment-related symptoms.Frontiers in oncology · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 6 institutions in 3 countries.
Funding
Abstract
STUDY
objectivesSleep disturbances are commonly reported by cancer survivors. Systematic light exposure using bright light has been used to improve sleep in other populations. In this secondary data analysis, the effect of morning administration of bright light on sleep and sleep quality was examined in a mixed group of fatigued cancer survivors.
methodsForty-four cancer survivors screened for cancer-related fatigue were randomized to either a bright white light or a comparison dim red light condition. Participants were instructed to use a light box every morning for 30 minutes for 4 weeks. Wrist actigraphy and the Pittsburgh Sleep Quality Index were administered at 4 time points: prior to light treatment (baseline), 2 weeks into the intervention, during the last week of the intervention, and 3 weeks postintervention. Thirty-seven participants completed the end-of-intervention assessment.
resultsRepeated-measures linear mixed models indicated a statistically significant time × treatment group interaction effect with sleep efficiency improving more in the bright light condition over time compared with the dim light condition (
conclusionsThe results suggest that systematic bright light exposure in the morning may have beneficial effects on sleep in fatigued cancer survivors. Larger scale efficacy trials are warranted. CLINICAL
trial registrationRegistry: ClinicalTrials.gov, Title: Treating Cancer-Related Fatigue Through Systematic Light Exposure, Identifier: NCT01873794, URL: https://clinicaltrials.gov/ct2/show/NCT01873794.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.