Sleep Quality, Cognition, and Disease Severity in Parkinson's Disease (NCT07536490) | Clinical Trial Compass
CompletedNot Applicable
Sleep Quality, Cognition, and Disease Severity in Parkinson's Disease
Turkey (Türkiye)69 participantsStarted 2026-05-10
Plain-language summary
The goal of this observational study is to investigate the relationship between sleep quality, cognitive functions, and disease severity in individuals with Parkinson's disease. The main question it aims to answer is:
Is sleep quality associated with cognitive function and disease severity in individuals with Parkinson's disease?
Participants will complete assessments of sleep quality, cognitive function, disease severity, and disease stage during a single evaluation session. Cognitive function will be evaluated using the Stroop Test, Clock Drawing Test, and Montreal Cognitive Assessment. Disease severity will be assessed using the Unified Parkinson's Disease Rating Scale, and disease stage will be determined using the Modified Hoehn and Yahr Scale.
Who can participate
Age range
40 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
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
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1This trial looked at sleep quality, cognition tests like the Stroop and Clock Drawing tests, and disease severity together in Parkinson's — can you walk me through what those connections might mean for how my own sleep problems could relate to my cognitive health or how fast the disease might progress?
2Since this study is now completed, have its findings been published or shared anywhere, and if so, what did they show about the link between poor sleep and cognitive decline in Parkinson's patients?
3The trial measured disease severity alongside sleep and cognition — does that mean there's a way you can assess whether my current sleep issues might be worsening my Parkinson's symptoms, and should that be part of my regular monitoring?
4Given that this was a non-interventional observational study rather than a treatment trial, are there any actual sleep interventions or treatments you'd recommend based on evidence like this for someone at my stage of Parkinson's?
5This trial is marked as having no assigned phase, which suggests it was measuring and observing rather than testing a new therapy — so what should I realistically take away from a study like this when thinking about my own treatment options?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.