ArticleParkinsonism & related disorders2019
Pimavanserin versus quetiapine for the treatment of psychosis in Parkinson's disease and dementia with Lewy bodies.
Article in Parkinsonism & related disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 41 citations in OpenAlex.
- Safety Profile of Pimavanserin Therapy in Elderly Patients with Neurodegenerative Disease-Related Neuropsychiatric Symptoms: A Phase 3B Study.Journal of Alzheimer's disease : JAD · 2024Trial
- Pragmatic trial design enhances diversity and retention among research participants with Lewy body diseases.NPJ dementia · 2026Article
- Isolated auditory hallucinations as the initial neuropsychiatric manifestation of dementia with Lewy bodies: diagnostic pathway and individualized therapy (a case report).Frontiers in psychiatry · 2026Article
- Current strategies in the management of dementia with lewy bodies and future directions based on disease pathophysiology.Molecular neurodegeneration · 2025Review
- Dopaminergic changes in the subgenual cingulate cortex in dementia with lewy bodies associates with presence of depression.Translational psychiatry · 2025Article
- Research progress of assessment tools for Parkinson's disease psychosis in China.Frontiers in psychiatry · 2025Review
- Sedation and sleep safety of pimavanserin for Parkinsons's disease psychosis: Review and exploratory analysis of clinical study data.Clinical parkinsonism & related disorders · 2025Review
- Retrospective analyses evaluating the mortality risk associated with pimavanserin or other atypical antipsychotics in patients with Parkinson disease psychosis.Clinical parkinsonism & related disorders · 2024Review
- Advances in the Diagnosis and Management of Psychotic Symptoms in Neurodegenerative Diseases: A Narrative Review.Journal of geriatric psychiatry and neurology · 2023Review
- Pimavanserin Use in Lewy Body Dementia: A Case Report Demonstrating the Medication's Efficacy.Cureus · 2023Article
- Pimavanserin Treatment for Psychosis in Patients with Dementia with Lewy Bodies: A Case Series.The American journal of case reports · 2023Article
- Comparison of Pimavanserin Versus Quetiapine for Hospitalization and Mortality Risk Among Medicare Beneficiaries with Parkinson's Disease Psychosis.Movement disorders clinical practice · 2023Article
- Pimavanserin: A Truly Effective Treatment for Parkinson's Disease Psychosis? A Review of Interventions.Neuropsychiatric disease and treatment · 2023Review
- Neuroleptic Sensitivity in Dementia with Lewy Body and Use of Pimavanserin in an Inpatient Setting: A Case Report.The American journal of case reports · 2022Article
- Emerging role of psychosis in Parkinson's disease: From clinical relevance to molecular mechanisms.World journal of psychiatry · 2022Review
- Psychosis as a Treatment Target in Dementia: A Roadmap for Designing Interventions.Journal of Alzheimer's disease : JAD · 2022Review
- Motor- and cognition-related safety of pimavanserin in patients with Parkinson's disease psychosis.Frontiers in neurology · 2022Article
- Long-term outcomes with pimavanserin for psychosis in clinical practice.Clinical parkinsonism & related disorders · 2022Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
introductionPsychosis is common among patients with Parkinson's disease (PD) and dementia with Lewy bodies (DLB). Limited data exist on the most effective therapies.
methodsRetrospective cohort study comparing patients with PD or DLB initiated on quetiapine or pimavanserin for psychosis. Primary outcome was time to discontinuation of pimavanserin or quetiapine using Kaplan-Meier survival analysis. We hypothesized the rate of antipsychotic discontinuation would be lower in the pimavanserin group. Subjects were included if the indication for treatment was psychosis and excluded if there was a history of major mental illness or no follow up data were available.
resultsForty-seven patients were included in the quetiapine cohort and 45 in the pimavanserin cohort. Patients in the pimavanserin cohort were more likely to have a diagnosis of DLB (33% vs. 11%, P = 0.01) and to have been prescribed an antipsychotic previously (62% vs. 6%, P < 0.01); otherwise, the groups were similar. Time to discontinuation analysis, which accounts for efficacy, safety and tolerability, revealed a lower early pimavanserin discontinuation rate and a higher late pimavanserin discontinuation rate (HR < 1 before day 43, HR > 1 after day 43; P = 0.04). There was no difference in mortality in the pimavanserin group compared to the quetiapine group (HR 0.37, 95% CI 0.06 to 2.45; P = 0.88). More individuals had a documented secondary indication for taking quetiapine than pimavanserin (38% vs. 4%; P = 0.001).
conclusionAccounting for efficacy, safety and tolerability, pimavanserin may be more clinically useful for promptly managing psychosis, while quetiapine may confer additional secondary benefits long-term.
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