Testing Idebenone for treating REM Sleep Behavior Disorder

A Randomized, Double-blind, Multi-center Clinical Study of the Efficacy of Idebenone in the Treatment of Primary Rapid Eye Movement Sleep Behavior Disorder Into Synucleinopathies

Phase 2 Interventional Ruijin Hospital · NCT04534023

This study is testing if Idebenone can help people with REM Sleep Behavior Disorder and possibly slow down the progression of related diseases.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment142 (estimated)
Ages40 Years to 75 Years
SexAll
SponsorRuijin Hospital Academic / other
Locations1 site (Shanghai, Shanghai)
Trial IDNCT04534023 on ClinicalTrials.gov

What this trial studies

This clinical study aims to evaluate the efficacy of Idebenone in patients diagnosed with idiopathic REM Sleep Behavior Disorder (iRBD) and its potential to delay progression into synucleinopathies. A total of 142 patients will be recruited and randomly assigned to either a treatment group receiving Idebenone or a control group receiving a placebo. Over a period of five years, participants will undergo regular evaluations, including questionnaires, blood tests, and imaging studies, to assess the treatment's effectiveness and safety. The study hypothesizes that Idebenone will be both safe and effective in managing the progression of the disease.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 40 to 75 who have been clinically diagnosed with iRBD.

Not a fit: Patients with other neurological disorders or sleep disorders, such as sleep apnea or seizures, may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly delay the progression of iRBD into more severe synucleinopathies.

How similar studies have performed: While this approach is novel in the context of iRBD, similar studies targeting synucleinopathies have shown promising results.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Clinical diagnosed of iRBD.
2. Age between 40 and 75.
3. Be voluntarily to participate in the experiment by signing an informed consent form.

Exclusion Criteria:

1. Sleep apnea hypopnea syndrome
2. Slow movement, muscle rigidity, tremor or postural instability.
3. Neurological diseases such as cerebral hemorrhage, cerebral infarction, brain trauma, brain tumor or central nervous system infection.
4. Other sleep disorders or seizures.
5. Alcoholism or drug addiction patients.

Where this trial is running

Shanghai, Shanghai

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Rapid Eye Movement Sleep Behavior DisorderSynucleinopathy
Last reviewed 2026-06-15 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.