Parkinson's study: poor sleep tied to worse thinking?
NCT ID NCT07536490
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 69 people with Parkinson's disease to see if sleep quality is linked to thinking skills and disease severity. Participants completed tests of sleep, memory, attention, and movement in one session. The goal is to better understand how these factors relate, which may guide future care.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If clear links are found, it could point to sleep as a target for future treatments to help thinking skills in Parkinson's.
- What could go wrong
- This is a small, completed observational study—it cannot prove cause and effect. Results may not apply to everyone with Parkinson's.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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69 people
The number who actually took part.
- Started
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May 2026
- Finished
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Jun 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
The study population will consist of individuals aged 40 to 65 years with Parkinson's disease who are followed at the Neurology Outpatient Clinic of Hacettepe University Faculty of Medicine. Participants who meet the eligibility criteria will be invited to participate in the study.
- Ages
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40 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age between 40 and 65 years * Diagnosis of Parkinson's disease confirmed by a neurologist * Modified Hoehn and Yahr stage between 1 and 3 * Montreal Cognitive Assessment (MoCA) score ≥21 Exclusion Criteria: * Difficulty in verbal communication * Use of walking aid * Severe visual impairment or additional neurological disorder * Presence of congestive heart failure * Any medical condition preventing participation
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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.
Contacts and locations
Locations
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Hacettepe University
Ankara, Ankara, 06810, Turkey (Türkiye)
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