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Restless Legs SyndromeNCT04906486

Autonomic Assessment in Patients With Restless Legs Syndrome

An observational study of Restless Legs Syndrome, run by Kocaeli Derince Education and Research Hospital at 1 site in Turkey (Türkiye).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Restless legs syndrome (RLS) is a sensorimotor, sleep-related disorder characterized by urgency to move the legs during inactivity or resting state. Although the exact mechanism is not clearly understood, sleep disturbances and dopamine deficiency may regarded as a potential contributing factor for autonomic… Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Restless Legs Syndrome
How many people
155 participants
Where
1 siteTurkey (Türkiye)
Study dates
12 Nov 2020to 12 Apr 2021
How long will I take part?
6 Months
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Patients were selected from a tertiary care neurology outpatient clinic. Age and gender matched control group obtained from the family members of the tertiary care hospital's staff.

Who may be able to join

  • For the patient group:
  • age >18, <65
  • newly diagnosed, drug naive patients with primary restless legs syndrome
  • For the control group:
  • age >18, <65
  • participants without chronic systemic disorder

Who cannot join

  • previous diagnosis of primary RLS
  • subjects with secondary RLS
  • concomitant use of drugs that could interfere with autonomic nervous system
  • individuals with a known acute/chronic medical disease
  • individuals with a minimental test score < 25/30
  • sleep disorders that could affect test performances

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Sehnaz Basaran

    İzmit, Marmara, 41900

Other trials in Turkey (Türkiye)

About this study

Official title: Clinical Assessment of Autonomic Functions by SCOPA-Autonomic Questionnaire in Patients With Restless Legs Syndrome: A Prospective Study in a Tertiary Care Hospital

Restless legs syndrome (RLS) is a sensorimotor, sleep-related disorder characterized by urgency to move the legs during inactivity or resting state. Although the exact mechanism is not clearly understood, sleep disturbances and dopamine deficiency may regarded as a potential contributing factor for autonomic dysfunction. The objective of the study is to evaluate autonomic functions and determine possible associations between autonomic dysfunction with clinical factors in patients with RLS.

Read the detailed description

Restless legs syndrome (RLS) also known as Willis- Ekbom disease, is a common sensorimotor, sleep-related disorder characterized by an unpleasant feeling with urgency to move the legs (or less commonly the arms) during inactivity or resting state.

Although, the clinical importance of autonomic involvement in patients with restless legs syndrome (RLS) remains incompletely understood, sleep disturbances and dopamine deficiency may regarded as a potential contributing factor for autonomic dysfunction.

Previous reports have described autonomic impairment including changes in nocturnal blood pressure and heart rate variability (HRV), gastrointestinal, urinary and sexual dysfunction in patients with RLS. Despite many studies about electrophysiological autonomic changes in RLS, number of studies exploring autonomic functions by using Scales for Outcomes in Parkinson's disease-Autonomic questionnaire (SCOPA-AUT) are limited.

In this study, the investigators plan to compare the presence of autonomic symptoms by using Scales for Outcomes in Parkinson's disease-Autonomic (SCOPA-AUT) questionnaire in drug- naive RLS patients to healthy controls. In addition, the investigators aim to evaluate possible associations between autonomic dysfunction with clinical factors in patients with RLS.

Keywords
restless legs syndrome, autonomic dysfunction, dysautonomia, SCOPA-AUT questionnaire
Medical subject headings
Restless Legs Syndrome, Primary Dysautonomias, Autonomic Nervous System Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04906486
Study groupRoleWhat they receive
Observational: Patients with restless legs syndromeA total of 70 patients who diagnosed with primary restless legs syndrome according to the five essential criteria as established by the International Restless Legs Syndrome Study Group.
Observational: Healthy controlsThe control group consisted of 85 age- and gender-matched healthy volunteers.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Scales for Outcomes in Parkinson's disease-Autonomic questionnaire (SCOPA-AUT) (points)

    Presence and severity of autonomic dysfunction noted by using Scales for Outcomes in Parkinson's disease-Autonomic questionnaire [SCOPA-AUT, including six domains (gastrointestinal,urinary, cardiovascular, thermoregulatory, pupillomotor, and sexual) with 25-items and a 4 -point Likert-type scale ranging from 0 to 69] in patients with restless legs syndrome vs. healthy controls.

    Measured: 6 months

  2. Age (years)

    Correlation between autonomic dysfunction and age (years) in patients with restless legs syndrome noted.

    Measured: 6 months

  3. Age of disease onset (years)

    Correlation between autonomic dysfunction and age of disease onset (years) in patients with restless legs syndrome noted.

    Measured: 6 months

  4. Disease duration (years)

    Correlation between autonomic dysfunction and disease duration (years) in patients with restless legs syndrome noted.

    Measured: 6 months

  5. Disease severity (as measured by International Restless Legs Scale) (points)

    Correlation between autonomic dysfunction and disease severity (as measured by International Restless Legs Scale,5-point Likert-type scale ranging from 0 to 40; mild= 0-10; moderate= 11-20; severe= 21-30; very severe= 31-40) in patients with restless legs syndrome noted.

    Measured: 6 months

  6. Excessive daytime sleepiness (as measured by Epworth Sleepiness scale) (points)

    Correlation between autonomic dysfunction and excessive daytime sleepiness [as measured by Epworth Sleepiness scale ,8-items with a 4-point Likert-type scale ( 0=would never doze,1=slight chance,2=moderate chance, 3= high chance) ranging from 0 to 24 points] in patients with restless legs syndrome noted.

    Measured: 6 months

  7. Body mass index (kg/m2)

    Correlation between autonomic dysfunction and body mass index (kg/m2, as calculated by dividing weight in kilograms by their height in metres squared) in patients with restless legs syndrome noted.

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 May 2021
  2. Study start12 Nov 2020
  3. Primary completion10 Apr 2021
  4. Study completion12 Apr 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
155 participants (actual)
Target duration
6 Months
IDs, dates and publications
ClinicalTrials.gov ID
NCT04906486
Sponsor's protocol ID
2011-KAEK-27/2020-E.2000173683
Status last verified
May 2021
First submitted
22 May 2021
Last updated
28 May 2021
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: not decided yet

Publications

  • Basaran S, Akinci E. Screening autonomic functions in patients with restless legs syndrome: A case-control study in a tertiary care hospital. Auton Neurosci. 2022 Jan;237:102924. doi: 10.1016/j.autneu.2021.102924. Epub 2021 Nov 29.

    PubMed 34871924

Questions about this trial

What is this clinical trial studying?

An observational study of Restless Legs Syndrome, run by Kocaeli Derince Education and Research Hospital at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 May 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Scales for Outcomes in Parkinson's disease-Autonomic questionnaire (SCOPA-AUT) (points) (time frame: 6 months). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04906486, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 May 2021.

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