Could a new shot clear Alzheimer's brain plaques? major trial results are in!
NCT ID NCT05463731
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This large Phase 3 study tested an experimental drug called remternetug in over 1,600 people with early symptoms of Alzheimer's disease. The main goal was to see if the drug could safely clear amyloid plaques from the brain, a hallmark of Alzheimer's. Participants received either the drug or a placebo, and researchers measured plaque levels using brain scans.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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1,667 people
The number who actually took part.
- Started
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Aug 2022
- Finished
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May 2026
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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60 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Gradual and progressive change in cognitive function ≥6 months prior to screening. * A Mini-Mental (MMSE) score of 20 to 30 (inclusive) at screening. * Has an amyloid PET scan result consistent with the eligibility criteria. * Have a reliable study partner who will provide written informed consent to participate and is in frequent contact with the participant. * Have adequate literacy, vision, and hearing for the neuropsychological testing in the opinion of the investigator at the time of screening. * Are reliable and willing to make themselves available for the duration of the study and are willing to follow study procedures. * Males and females will be eligible for this study. * Women not of childbearing potential (WNOCBP) may participate in this trial. Exclusion Criteria: * Current serious or unstable illnesses that, in the investigator's opinion, could interfere with the analyses in this study; or has a life expectancy of \<24 months. * History of cancer with high risk of recurrence and preventing completion of the trial. * Participants with any current primary psychiatric diagnosis other than AD that in the investigator's opinion, is likely to confound interpretation of the drug effect, affect cognitive assessment, or affect the participant's ability to complete the study. * History of clinically significant multiple or severe drug allergies. * Have any clinically important abnormality at screening, as determined by investigator that could be detrimental to the participant, could compromise the study, or show evidence of other etiologies for dementia. * Screening magnetic resonance imaging (MRI) which shows evidence of significant abnormality that would suggest another potential etiology for progressive dementia or a clinically significant finding that may impact the participant's ability to safely participate in the study. * Have any contraindications for MRI or positron emission tomography (PET). * Have had prior treatment with a passive anti-amyloid immunotherapy. * Have received active immunization against Aβ in any other study. * Have known allergies to remternetug related compounds, or any components of the formulation.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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AMC Research
Matthews, North Carolina, 28105, United States
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AMITA Health - Alexian Brothers Neurosciences Institute Clinical Research
Elk Grove Village, Illinois, 60007, United States
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Adams Clinical
Watertown, Massachusetts, 02472, United States
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Advanced Memory Research Institute of New Jersey
Toms River, New Jersey, 08755, United States
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Alpine Clinical Research Center
Boulder, Colorado, 80301, United States
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Alzheimer's Research and Treatment Center
Stuart, Florida, 34997, United States
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Alzheimer's Research and Treatment Center
Wellington, Florida, 33414, United States
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Anderson Clinical Research
Redlands, California, 92374, United States
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Brain Matters Research
Delray Beach, Florida, 33445, United States
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Brain Matters Research
Stuart, Florida, 34997, United States
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Care Access - Lake Charles
Lake Charles, Louisiana, 70601, United States
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Carteret Medical Group
Morehead City, North Carolina, 28557, United States
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Center for Cognitive Health
Portland, Oregon, 97225, United States
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Central Texas Neurology Consultants
Round Rock, Texas, 78681, United States
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Charter Research - Lady Lake
The Villages, Florida, 32162, United States
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Charter Research - Winter Park
Orlando, Florida, 32803, United States
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Citizens Memorial Hospital District
Bolivar, Missouri, 65613, United States
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ClinCloud - Maitland
Maitland, Florida, 32751, United States
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ClinCloud - Viera
Melbourne, Florida, 32940, United States
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Clinical Research Professionals
Chesterfield, Missouri, 63005, United States
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Colorado Springs Neurological Associates
Colorado Springs, Colorado, 80907, United States
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Columbus Memory Center, PC
Columbus, Georgia, 31909, United States
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Conquest Research
Winter Park, Florida, 32789, United States
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Consano Clinical Research, LLC
Shavano Park, Texas, 78231, United States
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Cotton O'Neil Clinical Research Center - Central Office
Topeka, Kansas, 66606, United States
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Covenant Medical Center
Waterloo, Iowa, 50702, United States
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Emerald Coast Neurology - Airport Boulevard
Pensacola, Florida, 32504, United States
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Encore Research Group- Jacksonville Center for Clinical Research
Jacksonville, Florida, 32216, United States
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Finlay Medical Research
Greenacres City, Florida, 33467, United States
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Gadolin Research
Beaumont, Texas, 77702, United States
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Great Lakes Clinical Trials - Andersonville
Chicago, Illinois, 60640, United States
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Hope Clinical Research, Inc.
Canoga Park, California, 91303, United States
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Institute for Neurodegenerative Disorders
New Haven, Connecticut, 06510, United States
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Irvine Clinical Research
Irvine, California, 92614, United States
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JEM Research Institute
Atlantis, Florida, 33462, United States
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K2 Medical Research
Maitland, Florida, 32751, United States
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Kaizen Brain Center
La Jolla, California, 92037, United States
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Katayama Medical Clinic
Kurashiki, Okayama-ken, 710-0813, Japan
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Kerwin Medical Center
Dallas, Texas, 75231, United States
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Keystone Clinical Studies
Plymouth Meeting, Pennsylvania, 19462, United States
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Ki Health Partners, LLc, dba New England Institute for Clinical Research
Stamford, Connecticut, 06905, United States
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Las Vegas Medical Research
Las Vegas, Nevada, 89128, United States
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MD First Research - Chandler
Chandler, Arizona, 85286, United States
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MedVadis Research Corporation
Waltham, Massachusetts, 02451, United States
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Memory Clinic Ochanomizu
Bunkyo-ku, Tokyo, 113-0034, Japan
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Memory Clinic Toride
Toride, Ibaraki, 302-0004, Japan
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Merritt Island Medical Research, LLC
Merritt Island, Florida, 32952, United States
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Mountain Neurological Research Center
Basalt, Colorado, 81621, United States
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National Clinical Research, Inc
Richmond, Virginia, 23294, United States
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Neuro-Pain Medical Center
Fresno, California, 93710, United States
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NeuroScience Research Center
Canton, Ohio, 44718, United States
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Neurological Associates Albany
Albany, New York, 12208, United States
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Neurology Clinic, P.C.
Cordova, Tennessee, 38018, United States
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Neurology Consultants of Dallas, PA
Dallas, Texas, 75243, United States
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Neurology Diagnostics, Inc.
Dayton, Ohio, 45459, United States
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Neuropsychiatric Research Center of Southwest Florida
Fort Myers, Florida, 33912, United States
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North County Neurology Associates
Carlsbad, California, 92011, United States
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Northwest Clinical Research Center
Bellevue, Washington, 98007, United States
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Optimus U Corporation
Miami, Florida, 33135, United States
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Palm Beach Neurology
West Palm Beach, Florida, 33407, United States
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Progressive Medical Research
Port Orange, Florida, 32127, United States
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Re:Cognition Health
Fairfax, Virginia, 22031, United States
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Renstar Medical Research
Ocala, Florida, 34470, United States
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Rhode Island Mood & Memory Research Institute
East Providence, Rhode Island, 02914, United States
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Suncoast Clinical Research, Inc.
New Port Richey, Florida, 34652, United States
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Tallahassee Neurological Clinic
Tallahassee, Florida, 32308, United States
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Texas Diabetes & Endocrinology, P.A.
Austin, Texas, 78749, United States
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The Clinical Trial Center, LLC
Jenkintown, Pennsylvania, 19046, United States
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The Cognitive and Research Center of New Jersey
Springfield, New Jersey, 07081, United States
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The University of Texas Health Science Center at Houston
Houston, Texas, 77054, United States
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Universal Research Group
Tacoma, Washington, 98405, United States
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VIN-Andrew Lerman
Miami, Florida, 33133, United States
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VIN-Julie Schwartzbard
Aventura, Florida, 33180, United States
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Valley Medical Research
Centerville, Ohio, 45459, United States
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Wr- Pri, Llc
Encino, California, 91316, United States
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iResearch Atlanta
Decatur, Georgia, 30030, United States
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