Effect of White Light on Fatigue Levels in Patients With Gynecological Cancer

August 11, 2021 updated by: Burcu Tuncer Yilmaz, Eskisehir Osmangazi University

The Effect of White Light on Fatigue Levels in Patients With Gynecological Cancer: A Double Blind Randomized Trial

White light therapy is one of the non-pharmacological methods in the management of fatigue. Cancer-related fatigue (CRF) is a persistent, subjective sense of physical, emotional, and/or cognitive tiredness or burnout. It is associated with cancer or cancer treatment from the first diagnosis until the end of life that is not proportional to recent physical activity.

It was founded that 10,000 Lux bright white light administered in the morning hours reduced fatigue by 17% in patients with cancer and that the mean fatigue scores of patients decreased from 30.37 to 9.48 compared to before the light administration. According to NCCN (2020), white light of 10,000 Lux can be applied for 30-90 minutes in the morning hours to regulate sleep and manage fatigue in the post treatment period as well as in cancer patients receiving active treatment. However, studies on this subject consist of small sample groups, and more studies are needed to identify the risks and benefits of the application and to determine the optimal application time and duration. The present study was aimed to evaluate the effect of white light on the fatigue levels of patients with gynecological cancer who were treated with chemotherapy. The patients with high levels of fatigue in every dimension were selected so as to have a homogeneous group. The research hypotheses were determined as follows:

H0: White light has no effect on fatigue levels in patients with gynecological cancer.

H1: White light reduces fatigue levels in patients with gynecological cancer.

Study Overview

Study Type

Interventional

Enrollment (Actual)

72

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Eskisehir, Turkey, 26450
        • Eskisehir Osmangazi University Faculty of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • had a normal state of consciousness,
  • had no communication disorders, did not work in the night shift,
  • had a general fatigue level score of ≥1 according to the Brief Fatigue Inventory

Exclusion Criteria:

  • had natural/artificial lenses,
  • used medication that causes photosensitivity (tetracycline, doxycycline, nalidixic acid, voriconazole, amiodarone, hydrochlorothiazide, naproxen, piroxicam, chlorpromazine)
  • had a change in their treatment plan in the last 6 weeks were not included in the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Control group
Experimental: white light intervention group
Between the second and the eighth days of the application phase, the patients in the intervention group were administered a standard white light at 10,000 Lux intensity by an independent nurse (RA1) in their home environment using a Litebook Elite light source (The Litebook Company Ltd., Medicine Hat, AB). The distance between the light source and the patient's face was set at 50 cm, and the intensity of the light for each patient was checked using a Lux Meter. The intervention was applied between 07:00 and 10:00 in the morning for 30 minutes without interruption, and it was continued for seven successive days. The light application procedure was followed based on the previous studies on oncology patients. The second and third evaluations of the fatigue status of patients were completed on the 9th and 21st days.
White Light Therapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
White light changes general fatigue scores
Time Frame: general fatigue levels of patients on 0., 9. and 21. days
White light changes general fatigue levels in patients with gynecological cancer
general fatigue levels of patients on 0., 9. and 21. days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
White light changes activity fatigue scores
Time Frame: activity fatigue levels of patients on 0., 9. and 21. days
White light changes activity fatigue levels in patients with gynecological cancer
activity fatigue levels of patients on 0., 9. and 21. days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 1, 2019

Primary Completion (Actual)

June 20, 2020

Study Completion (Actual)

June 20, 2020

Study Registration Dates

First Submitted

August 2, 2021

First Submitted That Met QC Criteria

August 11, 2021

First Posted (Actual)

August 17, 2021

Study Record Updates

Last Update Posted (Actual)

August 17, 2021

Last Update Submitted That Met QC Criteria

August 11, 2021

Last Verified

August 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • WHITELTESOGU

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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