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Studies how often restless legs syndrome occurs in Thai people with Parkinson's disease

Observes restless leg symptoms in adults with Parkinson's disease, without giving any treatment.

Key facts

Who runs it
Siriraj Hospital
Where
Bangkok, ThailandSee the site
Trial code
Registry title
Prevalence and Characteristics of Restless Leg Syndrome in Thai Patients With Parkinson's Disease
Status
Recruiting
People taking part
310 people, planned
Started
1 Dec 2024
Expected to end
30 Nov 2026
Type of study
Observational
Treatments tested
  • Screening for symptoms of restless leg syndrome
Record updated
15 May 2025

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults aged 18 to 80 with Parkinson's disease. It checks how common restless legs syndrome is among them.

Age
18 to 80 years
Sex
All sexes can join.
Disease stage
Parkinson's disease that meets the UK Parkinson's Disease Society Brain Bank diagnostic criteria.

Main reasons for not taking part

  • Atypical or secondary parkinsonism
  • Mini-mental status exam (MMSE) score less than 24 of 30
  • Restless legs syndrome caused by end-stage renal disease
  • Restless legs syndrome caused by iron deficiency anemia
  • Restless legs syndrome caused by pregnancy

The registry criteria, word for word

Show all 4 criteriaShow less

Who can take part

  • Patients with Parkinson's disease aged from 18 to 80 years who met the United Kingdom Parkinson's Disease Society (UKPDS) Brain Bank Diagnostic criteria

Who cannot take part

  • Patients with secondary causes of restless leg syndrome including end-stage renal disease, iron deficiency anemia and pregnancy
  • Patients with atypical or secondary parkinsonism
  • Patients with Mini-mental status exam (MMSE) less than 24 of 30

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 80 years old?

Where in Thailand

  • Siriraj Hospital Mahidol UniversityBangkok, ThailandContact: Jindapa Srikajon, MD.Taking people

About the trial

What the trial wants to find out

Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by pathologic intraneuronal alpha-synuclein-positive Lewy bodies and neuronal cell loss. The cardinal clinical symptoms and signs of PD are bradykinesia, rigidity, tremor, postural instability, and freezing attacks. The prevalence of PD increases with age, affecting 1-2% of the population over the age of 65 years, and 3% of those over 85 years.

Read full original descriptionShow less

Restless legs syndrome (RLS) represents disturbing symptoms in lower limbs that lead to the urge to move, occurring in rest periods. Movements can partially or completely relieve these abnormal feelings. In 2014, the International RLS Study Group (IRLSSG) established five mandatory criteria for the diagnosis of RLS. Several studies supported that RLS and PD may share pathophysiological mechanisms.

The group in the trial

  • Patients with parkinson's disease

    Treatment: Screening for symptoms of restless leg syndrome

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Prevalence and Characteristics of Restless Leg Syndrome in Thai Patients With Parkinson's Disease
Plain-language title
Studies how often restless legs syndrome occurs in Thai people with Parkinson's diseaseGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Fit questions
Built from NCT06684782, who can take part
Publications
Record updated
15 May 2025