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Recruiting Phase 2 NCT06274528

NCT06274528 DORA and LP in Alzheimer's Disease Biomarkers

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Clinical Trial Summary
NCT ID NCT06274528
Status Recruiting
Phase Phase 2
Sponsor Washington University School of Medicine
Condition Alzheimer Disease
Study Type INTERVENTIONAL
Enrollment 201 participants
Start Date 2024-03-11
Primary Completion 2030-03-31

Eligibility & Interventions

Sex All sexes
Min Age 65 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
Lemborexant 10 mgLemborexant 20mgPlacebo

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 201 participants in total. It began in 2024-03-11 with a primary completion date of 2030-03-31.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The purpose of this study is to see if the sleep aid, lemborexant, can decrease the amount of amyloid-beta and tau in the blood. Amyloid-beta and tau are proteins involved in the disease process leading to Alzheimer's disease.

Eligibility Criteria

Inclusion Criteria: * 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. Exclusion Criteria: * History or reported symptoms suggestive of restless legs syndrome, narcolepsy, or parasomnia. * STOP-Bang score \>6 for participants without PAP. * Untreated sleep apnea AHI\>15 * Poorly treated sleep apnea due to noncompliance or an AHI ≥ 10. \- PAP compliance is defined as ≥ 4 hours per night \>70% of the nights. * Plasma p-Tau217/np-Tau217% \<2.5 * Stroke. * History of renal impairment * Defined as older adult patients with markers of kidney damage or eGFR \< 45.0 ml/min/1.73m2. * Normal Limits ≥ 45.0 mL/min/1.73m2 * History of hepatic impairment * AST and/or ALT ≥ 2X upper limit of normal (ULN). * Normal Limits: AST 11-47 IU/L and ALT 6-53 IU/L * HIV/AIDS. * History of substance abuse or alcohol abuse in the preceding 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 or study team investigator'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 or study team investigator's discretion: * Cardiovascular disease requiring medication except for controlled hypertension. * Pulmonary disease. * Type I diabetes. * Neurologic or psychiatric disorder requiring medication. * Untreated depression * Tobacco use. * Use of sedating medications. * Use of medications that interact with lemborexant (if cannot be discontinued). * Abnormal safety labs. * History of current suicidal ideations. * Inability to speak and understand English. * 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. Optional assessment exclusion criteria: • Contraindication to lumbar puncture (anticoagulants; bleeding disorder; allergy to lidocaine or disinfectant; prior central nervous system or lower back surgery).

Contact & Investigator

Central Contact

Chloe Meehan, MA

✉ cmeehan@wustl.edu

📞 314-273-0878

Principal Investigator

Brendan Lucey, MD

PRINCIPAL INVESTIGATOR

Washington University School of Medicine

Frequently Asked Questions

Who can join the NCT06274528 clinical trial?

This trial is open to participants of all sexes, aged 65 Years or older, studying Alzheimer Disease. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT06274528 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT06274528 currently recruiting?

Yes, NCT06274528 is actively recruiting participants. Contact the research team at cmeehan@wustl.edu for enrollment information.

Where is the NCT06274528 trial being conducted?

This trial is being conducted at St Louis, United States.

Who is sponsoring the NCT06274528 clinical trial?

NCT06274528 is sponsored by Washington University School of Medicine. The principal investigator is Brendan Lucey, MD at Washington University School of Medicine. The trial plans to enroll 201 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology