ClinicalTrials.gov ID: NCT04453033
Ages Eligible: 45 Years and Older
Sexes Eligible: All
Study Phase: Not Applicable
Study Completion (Estimated): 2026-03-30
Principal Investigator: Pinky Agarwal, MD, FAAN
Contact Information:
EvergreenHealth Research Department
425-899-5385
EvergreenResearch@evergreenhealthcare.org
Summary:
This is a pivotal study to determine whether light therapy can improve non-motor and motor function in Parkinson's disease, on top of current best medical treatment.
Eligibility Criteria:
Inclusion Criteria
- Diagnosis of Parkinson's disease as determined by the study PI, in keeping with the UK PD Society Brain Bank Criteria for the Diagnosis of PD
- Responsiveness to dopaminergic medication, as judged by the rater, and have been using treatment for at least the past 1 year
- Relatively good eyesight as attested to by participants (Corrective lenses of at least 20/60)
- Stable levodopa and other anti-PD medications for at least 28 days prior to screening -
Exclusion Criteria
- Diagnosis of an atypical Parkinsonian syndrome
- Significant OFF state or bothersome dyskinesias that in the judgment of the rater, would interfere with participation in the study.
- An anticipated need for a change in dopamine replacement therapy, concomitant medications, OTC/supplements, or other alternative therapies during the participant's involvement in the investigation
- History of previous light therapy use for PD
