Can bright light ease Parkinson's sleep and mood troubles?
NCT ID NCT05524961
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether bright light therapy can help with sleepiness and mood problems in people with Parkinson's disease. 69 participants were randomly assigned to receive bright light, a placebo light, or an active control. The goal was to see if the therapy reduces daytime sleepiness and depressive symptoms.
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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
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Locations
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The Chinese University of Hong Kong
Hong Kong, Hong Kong