Evidence for exponential progression in advanced Parkinson’s disease: retrospective analysis of a prospective cohort study
By
Sophie Merve Yener
Catherine Ding
Ganga Ganesvaran
Jane E. Alty
Benjamin G. Clissold
Craig D. McColl
Katrina A. Reardon
Mark Schiff
Peter A. Kempster
June 5, 2026
Clinical Scorecard: Insights into Exponential Disease Progression in Advanced Parkinson's: A Retrospective Review of a Longitudinal Cohort Study
At a Glance
Category Detail
Condition Key Mechanisms Motor disability progression accelerates in advanced stages. Target Population Care Setting
Key Highlights
Median age at death was 78.4 years. Mean disease duration was 14.5 years. Late off scores progressed twice as fast as earlier disease segments. Guideline-Based Recommendations
Diagnosis
Utilize modified Webster disability scale and Mini-Mental State Examination (MMSE) for assessment. Management
Monitor motor scores and cognitive function regularly. Monitoring & Follow-up
Conduct assessments every 3 years. Risks
Increased risk of rapid motor disability progression in advanced stages. Patient & Prescribing Data
Cohort of 34 patients with Parkinson's Disease.
Levodopa test dose methodology was employed for motor scoring.
Clinical Best Practices
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