Lemborexant for Movement and Sleep Problems in Parkinson's Disease
Tests lemborexant against placebo for movement and sleep problems in Parkinson's disease.
Plain-language title generated from the registry record
Registry title: Effects of Lemborexant on Motor-sleep Comorbidity in Parkinson's Disease
Key facts
- Where
- Wuhan, ChinaSee the site
- Phase
- Phase 4
AI summary: who the study is looking for
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 50 or older with Parkinson's disease and insomnia. It tests the sleep drug lemborexant against placebo.
- Age
- 50 years or older
- Sex
- All sexes can join
- Disease stage
- Idiopathic Parkinson's disease, Hoehn & Yahr stage 1 to 4, diagnosed at least 2 years ago and clinically stable. Insomnia disorder (DSM-5) with an Insomnia Severity Index (ISI) score of 15 or more.
- Earlier treatment
- Medication must have been stable for at least 4 weeks before the study. No orexin receptor related medication and no other sleep-promoting medication in the past 3 months.
Main reasons for not taking part
- Severe psychiatric disorder such as depression, anxiety, schizophrenia spectrum or bipolar disorder
- Other neurological disorder such as stroke, dementia or multiple sclerosis
- Severe cognitive impairment (MMSE score below 24)
- COPD or a sleep-related breathing disorder such as sleep apnea
- History of cataplexy or known low orexin levels
Read by machine on 12 November 2026.
Where in China
- Zhongnan HospitalWuhan, ChinaContact: Yang Pan, Chief PhysicianNo longer taking part
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- YangPan
- Trial code
- NCT07384429
- Record updated
- 11 June 2026
- Original description
The aim of this study is to explore the effects of the dual orexin receptor antagonist Lemborexant on improving motor and sleep comorbidity in patients with Parkinson's disease. This study will provide clinical evidence for the application of dual orexin receptor antagonists in the treatment of Parkinson's Disease.Read full original descriptionShow less
Study for the Dual Orexin Receptor Antagonist Lemborexant in Improving Motor-Sleep Comorbidity in Parkinson's Disease
The aim of this study is to explore the effects of the dual orexin receptor antagonist Lemborexant on improving motor and sleep comorbidity in patients with Parkinson's disease. This study will provide clinical evidence for the application of dual orexin receptor antagonists in the treatment of Parkinson's Disease.
Inclusion: 1. Aged 50 years or older; 2. Diagnosed with idiopathic Parkinson's disease according to the Movement Disorder Society Clinical Diagnostic Criteria for Parkinson's Disease (2015), with a Hoehn \& Yahr stage of 1 to 4; 3. Disease duration of ≥ 2 years since diagnosis, clinically stable, and able to comply with the research assessments and interventions; 4. Diagnosis of insomnia disorder meeting the criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), with an Insomnia Severity Index (ISI) score of ≥ 15; 5. Stable medication regimen for at least 4 weeks prior to the study; 6. Signed informed consent form, with the participant or their legal guardian able to understand and willing to participate in this study.
Exclusion: 7. Use of any orexin receptor related medication within the past 3 months; 8. Previous history of cataplexy or known reduced orexin levels; 10. Use of other sleep-promoting medications within the past 3 months; 1. History of or diagnosis with a severe psychiatric disorder, such as depression, anxiety disorders, schizophrenia spectrum disorders, or bipolar disorder; 2. Presence of a clinically defined neurological disorder (assessed via self-report), including but not limited to: any condition potentially associated with increased intracranial pressure, space-occupying brain lesions, history of stroke, transient ischemic attack within the past 2 years, cerebral aneurysm, dementia, or multiple sclerosis; 3. Severe cognitive impairment (Mini-Mental State Examination (MMSE) score below 24) or inability to complete questionnaires independently; 4. Chronic obstructive pulmonary disease (COPD) or any lifelong history of sleep-related breathing disorders, such as sleep apnea; 5. Excessive daytime sleepiness, defined as self-reported daily daytime napping ≥ 1 hour per day on ≥ 3 days per week; 6. Regular caffeine consumption; 9. Inability to read or understand Chinese.