Predicting Parkinson’s Disease in REM Sleep Behavior Disorder
Can brain imaging and other biomarkers reliably predict which people with REM sleep behavior disorder will develop Parkinson’s disease?
It can show whether AI-assisted imaging and multimodal assessments become reliable tools for estimating an individual’s future Parkinson’s risk.
Where it stands now
Main bottleneck
Current evidence does not establish whether these approaches reliably predict later Parkinson’s diagnoses in people with REM sleep behavior disorder.
Watch next
Follow-up results showing whether imaging or multimodal assessments predict who develops Parkinson’s, with predictive accuracy confirmed in an independent group.
Progress timeline
How the evidence has changed over time.
2026 · 2 updates
- How repeated brain, sleep and clinical measurements may clarify Parkinson’s riskResearch note 2 of 3 · Source date 2026-07-28
Since the previous research note · Earlier expectation not tested
Track continuity
Since the previous research note: How a human study will link brain imaging to later diagnoses in REM sleep behavior disorder
Previous expectation: Dependable estimates of progression could support more individualized follow-up for people with REM sleep behavior disorder.
What this study adds: The Milan registry describes a study combining repeated clinical, cognitive, sleep and MRI measurements in people whose disorder was diagnosed at least five years earlier, with matched controls. This adds a specific study design to the timeline without testing the earlier forecast of clinical usefulness.
Current research note
- How sleep, brainstem imaging and body signals could clarify early diseaseResearch note 3 of 3 · Source date 2026-08-27
Since the previous research note · Earlier expectation not tested
Track continuity
Since the previous research note: How repeated brain, sleep and clinical measurements may clarify Parkinson’s risk
Previous expectation: Dependable individual risk estimates could eventually support tailored follow-up and better-designed early Parkinson’s trials.
What this study adds: This registry describes an observational study centered on relationships between brainstem imaging, cognition, sleep, autonomic function and protein markers in people with REM sleep behavior disorder. It supplies study hypotheses and design rather than results testing the earlier forecast.
Current research note
2024 · 1 update
- How a human study will link brain imaging to later diagnoses in REM sleep behavior disorderResearch note 1 of 3 · Source date 2024-10-08
How this Track works
This page changes as new evidence arrives. Open any update to see what researchers found at that point in the story.