Characterizing Advanced Parkinson's Disease: Romanian Subanalysis from the OBSERVE-PD Study

Area of Science:

• Neurology
• Clinical Research
• Observational Studies

Background:

• Parkinson's disease (PD) progression varies, with a subset developing advanced Parkinson's disease (APD).
• Understanding the prevalence and clinical characteristics of APD is essential for optimizing patient care.

Purpose of the Study:

• To determine the proportion of patients with APD versus non-APD in Movement Disorders Centers (MDCs).
• To assess the clinical burden of APD, including motor and non-motor symptoms, quality of life, and treatment complications.
• To evaluate the agreement between physician judgment and established indicators for APD diagnosis.

Main Methods:

• Cross-sectional, multicountry observational study (OBSERVE-PD) involving 2615 PD patients across 18 countries.
• Data collected via single visits between February 2015 and January 2016.
• Assessment included clinical judgment of APD, fulfillment of APD indicators, motor/non-motor symptoms, daily activities, treatment complications, quality of life, and device-aided therapy (DAT) eligibility.

Main Results:

• In Romanian patients (n=161), 59.0% were diagnosed with APD, and 78.8% met at least one APD indicator.
• Moderate agreement was observed between physician judgment and APD indicators.
• Patients with APD exhibited a significantly higher burden of motor symptoms, non-motor symptoms, treatment complications, and lower quality of life compared to non-APD patients.
• Physicians deemed 73.7% of APD patients eligible for DAT, yet 54.3% of eligible patients did not receive it.

Conclusions:

• Earlier recognition of APD, integrating clinical judgment with standardized criteria, is vital.
• Timely APD diagnosis alone is insufficient; patient acceptance and access to appropriate treatments like DAT are critical for improving outcomes.
• The study underscores the need for improved diagnostic tools and treatment accessibility for advanced Parkinson's disease.