Underutilization of Injectable Parkinson's Disease Medication: An Analysis of Neurologist and Patient Perspectives.

Background: We hypothesized that many neurologists underestimate patients' willingness to self-administer injectable Parkinson's disease (PD) medication.

Objective: To evaluate patient and physician perceptions contributing to underutilization of PD medications for acute OFF episodes.

Analytic Method: Data were collected using an online survey including n = 4063 PD patients experiencing OFF episodes and n = 200 neurologists.