Clinical trial Recruiting at 2 sites Observational Ages 18 to 80

Understanding Restless Leg Syndrome in Thai Patients with Parkinson's Disease

Official title: Prevalence and Characteristics of Restless Leg Syndrome in Thai Patients With Parkinson's Disease

Run by Siriraj Hospital · NCT06684782 · Data updated 2026-11-12

This study looks at how common Restless Legs Syndrome is in Thai people with Parkinson's Disease to better understand and manage this condition.

More Restless Legs Syndrome trials

Quick facts

Study typeObservational
Ages18 Years to 80 Years
SexAll
Enrollment310 (estimated)
SponsorSiriraj Hospital
Academic / other
Locations2 sites (Bangkok, Bangkok and 1 other locations)
StatusRecruiting
StartedDecember 1, 2024
Main results expectedOctober 31, 2026
Study endsNovember 30, 2026
Registry record updatedMay 15, 2025
Trial IDNCT06684782 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are Thai patients aged 18 to 80 years who have been diagnosed with Parkinson's Disease according to established criteria.

Probably not a fit

Patients with atypical or secondary parkinsonism, or those with cognitive impairments or secondary causes of RLS, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to assess the prevalence and characteristics of Restless Legs Syndrome (RLS) in Thai patients diagnosed with Parkinson's Disease (PD). It will involve screening participants aged 18 to 80 years who meet specific diagnostic criteria for PD. The study seeks to identify the prevalence of RLS among this population, which has been under-researched in Thailand, and to explore the potential relationship between RLS and PD. By gathering data on this condition, the study hopes to improve understanding and management of RLS in patients with PD.

Why it matters

Potential benefit: If successful, this study could lead to better recognition and management of Restless Legs Syndrome in patients with Parkinson's Disease, ultimately improving their quality of life.

How similar studies have gone: While there have been studies on RLS in Parkinson's Disease globally, this specific focus on the Thai population is novel and has not been extensively explored.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 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.

Exclusion Criteria:

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

Where it's running

  • Siriraj Hospital, Mahidol University
    Bangkok, Bangkok, Thailand
    Recruiting
  • Siriraj Hospital, Mahidol University
    Bangkok, Thailand, Thailand
    Recruiting

Study contacts

  • Principal investigator: Jindapa Srikajon, Doctor of Medicine — Siriraj Sleep Center, Faculty of Medicine, Siriraj Hospital, Mahidol University
  • Study coordinator: Jindapa Srikajon, Doctor of Medicine
  • Email: jindapas@hotmail.com
  • Phone: +66875932929

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.