A Study of ONO-2020 in Participants With Mild to Moderate Alzheimer's Disease (NCT06881836) | Clinical Trial Compass
Active — Not RecruitingPhase 2
A Study of ONO-2020 in Participants With Mild to Moderate Alzheimer's Disease
United States, Japan240 participantsStarted 2025-04-24
Plain-language summary
This is a Phase 2, double-blind, parallel-group, placebo-controlled study to assess safety, tolerability, pharmacokinetics, and efficacy of ONO-2020 in participants with mild to moderate Alzheimer's disease (AD). This study aims to determine whether administering ONO-2020, an epigenetic regulator, may improve cognitive functions like memory and cognition in individuals with Alzheimer's disease dementia.
Who can participate
Age range
55 Years – 85 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Have a diagnosis of Alzheimer's disease according to the recommendations from the revised criteria for diagnosis and staging of Alzheimer's disease: Alzheimer's Association Workgroup , along with any positive AD-specific biomarker results (abnormal Core 1 or Core 2 biomarkers) from a previous diagnosis or at screening.
. Have a previous MRI or CT scan of the brain, which was performed within 1 year prior to enrollment in the study, to confirm that more recent neurological events (e.g., stroke) would not potentially constitute a confounder in the assessment of the etiology of the participant's cognitive status.
. MMSE score of 15 to 24, inclusive, and MMSE score cannot deviate more than 3 points in either direction between the screening and baseline visits.
. AD numeric clinical stage 4 or stage 5 based on NIA-AA criteria 2024, at screening and baseline visits
. Participants receiving concurrent AD treatment (acetylcholinesterase inhibitors and /or memantine) must be on a stable dose for at least 90 days prior to randomization, and the participant must be willing to remain on the same dose for the duration of the study.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Incidence, severity, and type of treatment emergent adverse events (TEAEs)
Timeframe: From baseline up to 26 weeks
2
Clinically abnormal findings in Columbia Suicide Severity Rating Scale (C-SSRS)
Timeframe: From baseline up to 26 weeks
3
Change from baseline through week 26 in Alzheimer's Disease Assessment Scale-Cognitive Subscale 12 (ADAS-cog 12) score
. Have the ability to comply with procedures for cognitive and other tests in the opinion of the investigator
. If female, postmenopausal for at least 1 year
. Non-vasectomized male participants with female partners of childbearing potential must agree to use an effective method of contraception from dosing on Day 1 until 3 months after the last administration of study intervention and agree not to donate sperm until 3 months after the last administration of study intervention.
Exclusion criteria
. Participants with dementia or other memory impairment not due to Alzheimer's disease, including, but not limited to, dementia with Lewy bodies, vascular dementia, Parkinson's disease, Huntington disease, corticobasal degeneration, Creutzfeldt-Jakob disease, progressive supranuclear palsy, frontotemporal degeneration, normal pressure hydrocephalus, hypoxia, severe sleep apnea or other chronic sleep disturbance, or baseline intellectual disability.
. Participants with a history of stroke, well-documented transient ischemic attack, or pulmonary or cerebral embolism.
. History of significant psychiatric illness such as schizophrenia or bipolar affective disorder, or history or current major depressive disorder in the past year and any other significant psychiatric illness that in the opinion of the investigator could interfere with participation in the study.
. Participants with delirium or history of delirium within the 30 days prior to the screening visit.
. Have suicide ideation according to the investigator's clinical judgment as per the Columbia-Suicide Severity Rating Scale (C-SSRS) at screening or have made a suicide attempt in the 6 months prior to screening.
. Clinically significant ECG abnormality as judged by the investigator.
. Confirmed absolute QTcF \>450 msec for males or \>470 msec for females.
. Positive results at screening for active viral infections that include human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg), and hepatitis C virus (HCV) RNA PCR test.