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About
The purpose of this study is to determine if treatment with the sleep aid suvorexant can decrease the rate of amyloid-β (Aβ) accumulation in the brain.
Full description
This study will investigate if long-term treatment with suvorexant will slow amyloid-β accumulation in the brain. Amyloid-β is a protein involved in the disease process leading to Alzheimer's disease. This study will evaluate if suvorexant can decrease the amount of amyloid-beta detected by plasma pT217/T217.
Enrollment
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Inclusion criteria
Exclusion criteria
History of reported symptoms suggestive of restless legs syndrome, narcolepsy or other central disorder of hypersomnolence, or parasomnia
Actigraphic sleep efficiency >85%.
Abnormal movement of the non-dominant arm (would affect actigraphy data in unpredictable ways).
STOP-Bang score >6 for participants without PAP
Untreated OSA with AHI ≥15 on home sleep test
Treated sleep apnea with PAP non-compliance
Plasma A-beta and tau test with a plasma p-tau 217% ≤0.82
Stroke.
Chronic kidney disease defined as patients with markers of kidney damage or eGFR of < 45 ml/min/1.73m2.
Hepatic impairment defined as AST and/or ALT > 2x upper limit of normal (normal limits AST: 11-47 IU/L, ALT: 6-53 IU/L).
HIV/AIDS.
History of substance abuse or alcohol abuse in the proceeding 6 months.
Regular alcohol consumption 3 or more days a week over the last 6 months. Regular alcohol consumption is defined as having more than 2 alcoholic beverages within 3 hours of bedtime. Participants that agree to reduce alcohol consumption during the study may not be excluded.
History of presence of any clinically significant medical condition, behavioral or psychiatric disorder, or surgical history based on medical record or participant report that could affect the safety of the participant or interfere with study assessments or in the judgement of the Principal-Investigator (PI) if participant is not a good candidate.
Has any medical condition that, in the PI's opinion, could increase risk to the participant, limit the participant's ability to tolerate the research procedures, or interfere with the collection/analysis of the data. Potential medical conditions that will be exclusionary at the PI's discretion:
History of current suicidal ideations.
Currently pregnant or breast-feeding.
In the opinion of the PI, the participant should be excluded due to an abnormal physical examination.
Must not have participated in any clinical trial involving a study drug or device within the 30-days prior to study enrollment.
Must not participate in another drug or device study prior to the end of this study participation.
Exclusion criteria for optional lumbar punctures
-• Contraindication to lumbar puncture (anticoagulants; bleeding disorder; allergy to lidocaine or disinfectant; prior central nervous system or lower back surgery).
Primary purpose
Allocation
Interventional model
Masking
200 participants in 2 patient groups, including a placebo group
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Central trial contact
Cristina Toedebusch, BS; Chloe Meehan, MA
Data sourced from clinicaltrials.gov
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