Pimavanserin vs. Quetiapine for Treatment of Parkinson's Psychosis

Summary

Patients with Parkinson's disease (PD) sometimes experience symptoms affecting their movement, such as slowness, tremor, stiffness, and balance or walking problems. Many patients also have other symptoms not related to movement, called non-motor symptoms, which may affect one's mood or emotions, memory or thinking, or cause one to see or hear things that aren't real (hallucinations) or believe things that aren't true (delusions). Hallucinations or delusions, together called psychosis, occur in up to 60% of PD patients at some point in time.

Shortened from the sponsor's brief summary. View official record on ClinicalTrials.gov

Conditions studied

• Parkinson's Disease Psychosis

Eligibility basics and study details

Study type

Interventional

Phase

Phase 4

Ages

40 years and older

Sex

All

Healthy volunteers

Accepted

Sponsor

VA Office of Research and Development

Last updated on ClinicalTrials.gov

August 19, 2026

These are the basic criteria only. The full inclusion and exclusion criteria are on the official record, and the study team decides who can take part.

US recruiting sites