Patients suffering of Parkinson's Disease will be treated with 50 mg/day of Safinamide per os for 2 weeks (escalation phase). Then, safinamide will be increased up to 100 mg/day and, if tolerated, the treatment will be taken for 10 more weeks (maintenance phase). Total treatment 12 weeks.
Adult patients affected by PD and suffering from motor fluctuations will be screened for participation. If the inclusion and exclusion criteria are met, the participant will enter in the baseline assessment phase and undergo 1 night baseline PSG and 1 week baseline actigraphy. The patient will then start the treatment with 50 mg/day of Safinamide per os for 2 weeks (escalation phase). Then, safinamide will be increased up to 100 mg/day and, if tolerated, the treatment will last for 10 weeks (maintenance phase). At week 12 (end of treatment), the questionnaires, actigraphy and PSG will be repeated. A safety follow-up visit is scheduled 4 weeks after study treatment completion. The treatment will be continued thereafter in all patients if medically indicated.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
11
Safinamide taken per Os for 12 weeks
Neurocenter of Southern Switzerland - Ente Ospedaliero Cantonale (EOC)
Lugano, Switzerland
Effect of safinamide on overall sleep quality
To measure the change in PDSS-2 (Parkinson's Disease Sleep Scale Version 2) score and the changes in sleep maintenance (=total sleep time/partial sleep time) and sleep efficiency (=total sleep time/ time in bed) scores measured by polysomnography (PSG). PDSS-2 total score ranges from 0 (no disturbance) to 60 (maximum nocturnal disturbance). Scores \> 18 are considered as relevant sleep disturbances.
Time frame: 12 weeks
Effect of safinamide on objective PSG sleep characterization
To determine neurophysiological sleep parameters from PSG recording
Time frame: 12 weeks
Effect of safinamide on subjective sleep quality and sleepiness
To measure the change in subjective sleep quality as measured by PDSS-2 subscores and by the electronic diary "Sleep Fit app", and in daytime sleepiness as measured by ESS (Epworth sleepiness scale) score. PDSS-2 total score ranges from 0 (no disturbance) to 60 (maximum nocturnal disturbance). Scores \> 18 are considered as relevant sleep disturbances. ESS score ranges from 0 to 24. Scores \> 10 suggest relevant daytime sleepiness.
Time frame: 12 weeks
Effect of safinamide on objective motor activity
To determine the change in motor activity as measured by a specific objective measure of bradykinesia (FitTest) in the electronic diary "Sleep Fit app".
Time frame: 12 weeks
Effect of safinamide on subjective motor activity
To measure the change in motor activity as measured by UPDRS (Unified Parkinson's Disease Rating Scale). Higher UPDRS score indicates more severe impairment of non-motor and motor activities.
Time frame: 12 weeks
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Effect of safinamide on objective sleep parameters and motor symptoms
To measure the change in sleep parameters and motor activity during the day and the night as measured by actigraphy.
Time frame: 12 weeks
Effect of safinamide on non-motor symptoms
To measure the change in depressive symptoms as measured by (BDI-II) Beck Depression Inventory and SAS (Starkstein Apathy Scale). Total BDI-II score ranges from 0 to 63 with higher total score indicating more severe depressive symptoms. Total SAS score ranges from 0 to 42 with higher scores indicating more severe apathy.
Time frame: 12 weeks
Effect of safinamide on quality of life
To measure the change in quality of life as measured by PDQ-39 (Parkinson's Disease Questionnaire-39). PDQ-39 is scored on a scale of 0 to 100, with lower scores indicating better health and high scores more severe symptoms.
Time frame: 12 weeks