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Parkinson's study: poor sleep tied to worse thinking?

NCT ID NCT07536490

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

69 people

The number who actually took part.

Started

May 2026

Finished

Jun 2026

Lead sponsor

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

40 to 65 years

Sex

Anyone

Healthy volunteers

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

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

  • Hacettepe University

    Ankara, Ankara, 06810, Turkey (Türkiye)

More trials for these conditions

Other studies related to the condition(s) this trial covers.