Light Therapy for PD - Dose Selection

December 13, 2022 updated by: Aleksandar Videnovic, MD, Massachusetts General Hospital

A Dose Selection Trial of Light Therapy for Impaired Sleep in Parkinson's Disease

This study aims to determine the most effective dose of light therapy to improve sleep in people with Parkinson's Disease. Four groups of participants will receive bright-white or dim-red light therapy at different times throughout the day.

Study Overview

Status

Active, not recruiting

Intervention / Treatment

Detailed Description

This is a 16-week, randomized, phase II, parallel-group, dose-selection clinical trial of LT in participants with PD and co-existing sleep disruption using a comparative selection trial design.

Study Type

Interventional

Enrollment (Anticipated)

144

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

    • Alabama
      • Birmingham, Alabama, United States, 35233
        • University of Alabama
    • Arizona
      • Phoenix, Arizona, United States, 85013
        • Barrow Neurological Institute
    • California
      • Irvine, California, United States, 92697
        • UC Irvine
      • Sacramento, California, United States, 95817
        • UC Davis
    • Connecticut
      • Fairfield, Connecticut, United States, 06824
        • Yale University
    • Florida
      • Miami, Florida, United States, 33136
        • University of Miami
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern University
    • Iowa
      • Iowa City, Iowa, United States, 52242
        • University of Iowa
    • Massachusetts
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess Medical Center
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
        • University of Michigan
    • Missouri
      • Saint Louis, Missouri, United States, 63110
        • Washington University in St. Louis
    • New York
      • New York, New York, United States, 10021
        • Weill Cornell
      • New York, New York, United States, 10029
        • Mount Sinai - Icahn School of Medicine
      • Rochester, New York, United States, 14642
        • University of Rochester
      • Stony Brook, New York, United States, 11794
        • SUNY Stonybrook
      • Syracuse, New York, United States, 13210
        • SUNY Upstate
    • North Carolina
      • Winston-Salem, North Carolina, United States, 27104
        • Wake Forest University
    • Ohio
      • Cincinnati, Ohio, United States, 45219
        • University of Cincinnati
      • Columbus, Ohio, United States, 43221
        • Ohio State University
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19107
        • University of Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15213
        • University of Pittsburgh
    • Tennessee
      • Nashville, Tennessee, United States, 37232
        • Vanderbilt University
    • Utah
      • Salt Lake City, Utah, United States, 84132
        • University of Utah
    • Virginia
      • Charlottesville, Virginia, United States, 22903
        • University of Virginia

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

43 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Diagnosis of idiopathic PD as defined by the Movement Disorder Society Clinical Diagnostic Criteria for Parkinson's disease;
  2. PD Hoehn and Yahr stage 2-4;
  3. A score of 2 (mild) or above on the Sleep Problems question of the MDS-UPDRS Part 1;
  4. Stable dose of all PD medications for at least 30 days prior to randomization;
  5. Willingness to wear an Actiwatch and complete daily sleep logs;
  6. Age 45 or above

Exclusion Criteria:

  1. Atypical or secondary forms of parkinsonism;
  2. Co-existent significant sleep apnea at screening, as determined by the PI's clinical assessment; adequately treated sleep apnea, as assessed by sleep apnea machine download (CPAP download) will be permitted;
  3. Co-existent symptomatic restless legs syndrome (RLS) (as assessed by the International Classification of Sleep Disorders (ICDS) diagnostic criteria for RLS) at screening;
  4. Cognitive impairment as determined by a Mini Mental State Examination score <25 at screening;
  5. Presence of moderate depression defined as a Beck Depression Inventory II (BDI-II) score ≥20 at screening;
  6. Current untreated hallucinations or psychosis (drug-induced or spontaneous) with a score of 2 or above on the Hallucinations and Psychosis question of the MDS-UPDRS Part 2;
  7. Use of hypno-sedative drugs for sleep or stimulants, unless the participant has been on a stable dose for at least 60 days prior to the screening;
  8. Ongoing or recent (within 30 days prior to screening) Cognitive Behavioral Therapy for Insomnia;
  9. Use of antidepressants, unless the participant has been on a stable dose for at least 60 days prior to the screening;
  10. Work hours between 10 PM and 6 AM, within 60 days prior to randomization or anticipated during the 16 weeks after screening;
  11. Travel between 3 or more time zones within 45 days prior to study screening or anticipated such travel during the 16 weeks after screening;
  12. Unstable or serious medical illness;
  13. History of significant eye trauma or disease, retinopathy, or cataract Grade 4 that would significantly affect transmission or processing of light through either eye;
  14. Current use, use at any time during study participation, or use within the 30 days prior to screening of photosensitizing or other medications that in the opinion of the investigator would interfere with the safety of the participant during the trial, including: amiodarone, porfimer, psoralens, chlorpromazine, quinidine, demeclocycline, temoporfin, tetracycline, fleroxacin, oral isoretinoin, voriconazole, nalidixic acid, thioridazine, St. John's wort, ofloxacin, and piroxicam;
  15. Pregnant women will be excluded from participation; if a participant is pre-menopausal, a urine pregnancy test will be conducted at randomization to determine eligibility.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: BWLT once daily
Participants in this arm will receive bright white light therapy daily once a day (in the evening)
SunRay light boxes will be used to administer the light therapy.
Experimental: BWLT twice daily
Participants in this arm will receive bright white light therapy daily twice a day (morning and evening).
SunRay light boxes will be used to administer the light therapy.
Experimental: BWLT weekly
Participants in this arm will receive bright white light therapy once weekly (in the evening).
SunRay light boxes will be used to administer the light therapy.
Experimental: DRLT twice daily
Participants in this arm will receive dim red light twice daily (morning and evening).
SunRay light boxes will be used to administer the light therapy.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
PDSS-2
Time Frame: 8 weeks
The PDSS-2 is a 15-question instrument designed to simultaneously capture the multidimensional aspects of sleep-related problems and changes in sleep quality.
8 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
PFS-16
Time Frame: 8 weeks
The PFS-16 is a patient-rated scale that measures fatigue. The scale allows the measurements of the presence of fatigue (seven items) and its impact on daily function (nine items).
8 weeks

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)

September 11, 2020

Primary Completion (Actual)

November 12, 2022

Study Completion (Anticipated)

April 1, 2023

Study Registration Dates

First Submitted

February 27, 2020

First Submitted That Met QC Criteria

February 27, 2020

First Posted (Actual)

March 2, 2020

Study Record Updates

Last Update Posted (Estimate)

December 14, 2022

Last Update Submitted That Met QC Criteria

December 13, 2022

Last Verified

December 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

This trial will follow the NINDS policy for data sharing.

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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