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

Brief summary (registry, in English)

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. 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.

What you commit to

• Study type: Observational
• Planned participants: 310
• From 1 Dec 2024 to the primary completion date, 31 Oct 2026
• 1 site in 1 country
• Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Who the study is looking for

Age in the registry: 18 years to 80 years · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

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Related publications

• Underrecognized restless legs syndrome in Parkinson's disease: Diagnostic delay, association with sleep burden, and dopaminergic exposure in a Thai cohort.Sleep Med · 2026 · PMID 42721723