MK-2214 for people with early Alzheimer's disease
Official title: A Phase 2 Randomized, Placebo-Controlled, Double-Blind, Parallel-Group Study to Evaluate the Efficacy and Safety of MK-2214 in Participants With Early Alzheimer's Disease
Run by Merck Sharp & Dohme LLC · NCT07033494 · Data updated 2026-11-12
This trial will test whether the drug MK-2214 can slow the spread of tau protein in the brains of people with mild cognitive impairment or mild dementia from Alzheimer's disease.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 50 Years to 85 Years |
| Sex | All |
| Enrollment | 340 (estimated) |
| Sponsor | Merck Sharp & Dohme LLC Industry-sponsored |
| Locations | 80 sites (Irvine, California and 79 other locations) |
| Status | Recruiting |
| Started | July 16, 2025 |
| Main results expected | April 30, 2029 |
| Study ends | April 30, 2030 |
| Registry record updated | October 20, 2026 |
| Trial ID | NCT07033494 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
People with mild cognitive impairment or mild dementia due to Alzheimer's disease who have a designated study partner and stable dosing on any approved symptomatic AD therapy are ideal candidates.
✕Probably not a fit
People with a history of stroke or other major cerebrovascular or central nervous system disease, recent seizures, structural brain disease, or unstable major medical illness are unlikely to qualify or benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 2, randomized, placebo-controlled trial gives participants either MK-2214 or a matching placebo and follows them over time to measure changes in brain tau and clinical safety. The primary goal is to see if MK-2214 slows tau accumulation in the brain compared with placebo while monitoring side effects and tolerability. Eligible participants include people with mild cognitive impairment or mild dementia due to Alzheimer's who have a study partner, and those on approved symptomatic AD therapies must be on a stable dose. Outcome measures will focus on brain measures of tau and standard safety labs, exams, and tolerability assessments.
Why it matters
Potential benefit: If successful, MK-2214 could slow Alzheimer's-related tau buildup and potentially delay worsening of thinking and day-to-day function.
How similar studies have gone: Tau-targeting treatments are an active area of research but so far have produced mixed, mostly early-stage results, so this approach is promising but not yet proven.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Has mild cognitive impairment (MCI) or mild dementia due to Alzheimer's Disease (AD) * Has a designated study partner who can fulfill the requirements of this study * If on an approved AD therapy for symptomatic AD, the dosing regimen must have been stable for 3 months prior to screening Exclusion Criteria: The main exclusion criteria include but are not limited to the following: * Has a known history of stroke or cerebrovascular disease * Has diagnosis of a clinically relevant central nervous system disease other than AD or other condition that negatively impacts cognition or cognitive status chronically * Has structural brain disease * Has a history of seizures or epilepsy within 5 years before screening * Has any other major central nervous system trauma, or infections that affect brain function * Has major medical illness or unstable medical condition within 3 months before screening * Has a severe, acute, or chronic medical or psychiatric condition or laboratory abnormality * Has any immunological disease, which is not adequately controlled, or which requires treatment with biologics and/or immunosuppressants during the study * Has a bleeding disorder that is not under adequate control * Has a history of malignancy occurring within 5 years of screening * Has a risk factor for corrected QT interval (QTc) prolongation * Has liver disease * Is unwilling or unable to undergo computed tomography (CT), positron emission tomography (PET), or magnetic resonance imaging (MRI) scan * Resides in a nursing home or assisted care facility with need for direct continuous medical care and nursing supervision
Where it's running
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Irvine Clinical Research ( Site 1041)
Irvine, California, United States Recruiting -
Healthy Brain Clinic ( Site 1005)
Long Beach, California, United States Recruiting -
Inglewood Clinical ( Site 1062)
Los Angeles, California, United States Recruiting -
Anderson Clinical Research ( Site 1024)
Redlands, California, United States Recruiting -
UCSF Memory and Aging Center ( Site 1031)
San Francisco, California, United States Recruiting -
Syrentis Clinical Research ( Site 1001)
Santa Ana, California, United States Recruiting
Show 44 more locations
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Yale University, Alzheimer's Disease Research Unit ( Site 1059)
New Haven, Connecticut, United States Recruiting -
JEM Research Institute ( Site 1046)
Atlantis, Florida, United States Recruiting -
Neuropsychiatric Research Center of Southwest Florida ( Site 1003)
Fort Myers, Florida, United States Recruiting -
K2 Medical Research ( Site 1047)
Maitland, Florida, United States Recruiting -
ClinCloud LLC ( Site 1039)
Melbourne, Florida, United States Recruiting -
Indago Research and Health Center Inc ( Site 1044)
Miami Lakes, Florida, United States Recruiting -
Aqualane Clinical Research ( Site 1035)
Naples, Florida, United States Recruiting -
Suncoast Clinical Research ( Site 1007)
New Port Richey, Florida, United States Recruiting -
Renstar Medical Research ( Site 1012)
Ocala, Florida, United States Recruiting -
Charter Research - Orlando ( Site 1051)
Orlando, Florida, United States Recruiting -
Axiom Brain Health ( Site 1029)
Tampa, Florida, United States Recruiting -
K2 Medical Research ( Site 1020)
Tampa, Florida, United States Recruiting -
Charter Research - Lady Lake ( Site 1019)
The Villages, Florida, United States Recruiting -
Conquest Research LLC ( Site 1053)
Winter Park, Florida, United States Recruiting -
CenExel iResearch, LLC ( Site 1015)
Decatur, Georgia, United States Recruiting -
Alexian Brothers Medical Center-Neurosciences ( Site 1017)
Elk Grove Village, Illinois, United States Recruiting -
Boston Center for Memory ( Site 1008)
Newton, Massachusetts, United States Recruiting -
CenExel- AMRI ( Site 1018)
Marlton, New Jersey, United States Recruiting -
The Cognitive and Research Center of New Jersey - Ridgewood ( Site 1064)
Ridgewood, New Jersey, United States Recruiting -
The Cognitive and Research Center of NJ ( Site 1057)
Springfield, New Jersey, United States Recruiting -
Alzheimer Disease Research Center (ADRC) ( Site 1000)
Albany, New York, United States Recruiting -
Mid Hudson Medical Research ( Site 1050)
New Windsor, New York, United States Recruiting -
Basil Clinical ( Site 1065)
Queens, New York, United States Recruiting -
AMC Research, LLC ( Site 1006)
Matthews, North Carolina, United States Recruiting -
Insight Clinical Trials ( Site 1011)
Independence, Ohio, United States Recruiting -
Neuro-Behavioral Clinical Research ( Site 1028)
North Canton, Ohio, United States Recruiting -
Flourish Research ( Site 1048)
Plymouth Meeting, Pennsylvania, United States Recruiting -
Gadolin Research ( Site 1032)
Beaumont, Texas, United States Recruiting -
Horizon Clinical Research Center - Houston ( Site 1026)
Cypress, Texas, United States Recruiting -
Organizacion Medica de Investigacion ( Site 0401)
Ciudad de Buenos Aires, Buenos Aires F.D., Argentina Recruiting -
Centro de Educación Médica e Investigaciones clínicas "Dr. Norberto Quirno" (CEMIC) ( Site 0404)
Ciudad de Buenos Aires, Buenos Aires F.D., Argentina Recruiting -
Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI) ( Site 0400)
Caba, Argentina Recruiting -
Southern Neurology ( Site 0306)
Kogarah, New South Wales, Australia Recruiting -
KARA Institute for Neurological Diseases ( Site 0302)
Macquarie Park, New South Wales, Australia Recruiting -
Austin Health ( Site 0300)
Ivanhoe, Victoria, Australia Recruiting -
HammondCare ( Site 0301)
Malvern, Victoria, Australia Recruiting -
Cliniques universitaires Saint-Luc ( Site 3001)
Brussels, Bruxelles-Capitale, Region de, Belgium Recruiting -
UZ Leuven ( Site 3000)
Leuven, Vlaams-Brabant, Belgium Recruiting -
AZ Groeninge Campus Kennedylaan ( Site 3002)
Kortrijk, West-Vlaanderen, Belgium Recruiting -
Ottawa Memory Clinic ( Site 2001)
Ottawa, Ontario, Canada Recruiting -
Sunnybrook Research Institute ( Site 2003)
Toronto, Ontario, Canada Recruiting -
Toronto Western Hospital ( Site 2004)
Toronto, Ontario, Canada Recruiting -
Clinique Mémoire de Montreal ( Site 2000)
Montreal, Quebec, Canada Recruiting -
National Center for Geriatrics and Gerontology ( Site 9002)
Ōbu, Aichi-ken, Japan Recruiting
+30 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Toll Free Number
- Email: Trialsites@msd.com
- Phone: 1-888-577-8839
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.