Sleep Trial to Prevent Alzheimer's Disease

Recruiting now · Phase 2 · Has a placebo group

Conditions studied: Sleep, Alzheimer Disease

In brief

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.

Key facts

Study ID

NCT04629547

Run by

University of Minnesota

People needed

120

Starts

2022-05-25

Expected to finish

2028-05-01

Last updated by the study team

2026-07-13

Who can join

Age: 65 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Male or female.
• Any race or ethnicity.
• Participants must be age ≥65 years and able to sign informed consent.
• Global Clinical Dementia Rating (CDR) 0.
• Willing and able to undergo study procedures.

You may not qualify if…

• History of reported symptoms suggestive of restless legs syndrome, narcolepsy or other central disorder of hypersomnolence, or parasomnia
• STOP-Bang score >6 for participants without PAP
• Untreated OSA with AHI ≥15 on home sleep test
• Treated sleep apnea with PAP non-compliance
• PAP compliance is defined as >= 4 hours per night >70% of the nights
• Plasma A-beta and tau test with a plasma p-tau 217% ≤ 1.19
• 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:
• Cardiovascular disease requiring medication except for controlled hypertension.
• Pulmonary disease.
• Type I diabetes.
• Neurologic or psychiatric disorder requiring medication.
• Tobacco use.
• Use of sedating medications.
• Use of medications that interact with suvorexant (if cannot be discontinued)
• Abnormal safety labs
• 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.

Where it is running

• Washington University School of Medicine — St Louis, Missouri, United States (enrolling)

Full record on ClinicalTrials.gov

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