This pilot, self-control study is for patients with Parkinson's Disease (PD) psychosis (e.g., visual hallucinations, delusions) and sleep problems.
This is a feasibility study to determine whether pimavanserin improves sleep quality in patients with PD and visual hallucinations/delusions. Patients will complete a Screening Visit to assess eligibility to participate in the study. For more information, please contact Sofya Glazman, a study coordinator, at sofya.glazman@downstate.edu
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Pimavanserin (Nuplazid) 34 mg oral capsules once a day for 6 weeks
SUNY Downstate Health Sciences University
Brooklyn, New York, United States
Effect of pimavanserin on sleep fragmentation
Number of arousals and the arousal index (arousals per hour of sleep) measured on polysomnography
Time frame: 6 weeks
Effect of pimavanserin on REM (Rapid Eye Movements) sleep behavior disorder
Presence fo REM sleep without atonia (RWA) on polysomnograophy
Time frame: 6 weeks
Effect of pimavanserin on sleep latency
Time to first epoch on polysomnography
Time frame: 6 weeks
Effect of pimavanserin on total sleep time
Total sleep time measured on polysomnography
Time frame: 6 weeks
Effect of pimavanserin on sleep efficiency
Sleep Efficiency Index in percent is the ratio of total sleep time (based on polysomnography recordings) to time in bed
Time frame: 6 weeks
Effect of pimavanserin on time in each sleep stage
Time in each sleep stage as measured on polysomnography
Time frame: 6 weeks
Effect of pimavanserin on subjective measure of REM Sleep behavior disorder
RBDSQ (REM (Rapid Eye Movements) Sleep Behavior Disorder Screening Questionnaire to assess the most prominent clinical features of RBD. It is a 10-item, patient self-rating instrument with short questions to be answered by either 'yes' or 'no'.
Time frame: 6 weeks
Effect of pimavanserin on subjective measures of sleep
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PDSS-2 (Parkinson's Disease Sleep Scale Version 2) total score ranges from 0 (no disturbance) to 60 (maximum nocturnal disturbance). Scores \> 18 are considered as relevant sleep disturbances
Time frame: 6 weeks
Effect of pimavanserin on subjective measures of fatigue
PFS-16 (Parkinson's disease Fatigue Scale): 16-item scale with the following scoring for each item: strong disagree -1, disagree - 2, neither agree or disagree - 3, agree - 4, strongly agree - 5; with overall score of ≥8 indicates the presence of significant fatigue.
Time frame: 6 weeks