Could a Vitamin-Like pill slow Alzheimer's? new trial seeks answers
NCT ID NCT06223360
First seen Jun 27, 2026 · Last updated Sep 18, 2026 · Updated 4 times
Summary
This study tests whether benfotiamine, a form of vitamin B1, can safely slow memory and thinking decline in people with early Alzheimer's. About 406 adults aged 50-89 with mild symptoms will take the drug or a placebo for up to 72 weeks. Researchers will measure changes in cognition and daily function, and monitor side effects.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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406 people
The number who actually took part.
- Started
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Mar 2024
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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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50 to 89 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.
Key Inclusion Criteria: * Aged 50 to 89 (inclusive) at screening * Mild Cognitive Impairment (MCI) due to AD or Mild dementia due to AD according to workgroups of the Diagnostic Guidelines of the National Institute on Aging and Alzheimer's Association (NIA-AA) * Mini-Mental State Examination (MMSE) score 20-30 inclusive at screening-. Montreal Cognitive Assessment score (MoCA) \< 26 at screening * Clinical Dementia Rating (CDR) global score of 0.5 or 1 with memory score of greater or equal to 0.5 at screening * Positive plasma AD biomarker signature * Participants who are treated with FDA-approved acetylcholinesterase inhibitors (AchEI)and/or memantine will have to be on a stable dosage regimen for at least 3 months prior to screening. * Participants must have a study partner who has frequent interaction with them (approximately \>3-4 times per week), will be available for all clinic visits in person or remotely, and can assist in compliance with study procedures. * Female participants must be post-menopausal for at least one year or surgically sterile(bilateral tubal ligation, hysterectomy, or bilateral oophorectomy) for at least 6 months prior to screening. * Fluent in English or Spanish to ensure compliance with cognitive testing and study visit procedures. * Ambulatory, or able to walk with an assistive device. * Provision of informed consent from the participant (or the participant's legally authorized representative (LAR) if unable to provide consent) and the study partner. Key Exclusion Criteria: * Significant neurological disorder other than AD (e.g. hypoxia, stroke, traumatic brain injury * Significant neurodegenerative diseases, other than AD, and causes of dementias, Parkinson's disease and Huntington's disease, vascular dementia, CJD (Creutzfeldt-Jakob disease), LBD (Lewy Body dementia), PSP (Progressive Supranuclear Palsy), AIDS (Acquired Immunodeficiency Syndrome), or NPH (normal pressure hydrocephalus). * Meeting Diagnostic Criteria for Possible AD according to workgroups of the Diagnostic Guidelines of the NIA-AA. * A current diagnosis of uncontrolled Type I or Type II diabetes mellitus, as defined by Hemoglobin A1C (Hb A1C ≥ 8). * A current active, uncontrolled seizure disorder. * Diagnosis of cancer, except for those participants who have undergone potentially curative therapy with no evidence of recurrence for \> 5 years. * History of alcoholism or substance abuse, current or within past 5 years. * Previous exposure to Benfotiamine within past 3 months. * Contraindication to MRI. * Participation in another clinical trial for an investigational agent and having taken at least one dose of study drug, unless confirmed as having been on placebo, within 4 weeks prior to the baseline visit. The end of a previous investigational trial is defined as the date of the last dose of an investigational agent. * Initiation of a monoclonal antibody treatment targeting brain amyloid within 6 months prior to the baseline visit. * A disability that may prevent the patient from completing all study requirements e.g.,blindness, deafness, severe language difficulty).
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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 LLC, dba Flourish Research
Matthews, North Carolina, 28105, United States
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Albany Medical College
Albany, New York, 12208, United States
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Banner Sun Health Research Institute
Sun City, Arizona, 85351, United States
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Blue Medical Research Inc.
Miami, Florida, 33144, United States
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Brain Matters Research
Delray Beach, Florida, 33445, United States
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Brain Matters Research (Kane Center)
Stuart, Florida, 34997, United States
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Brainstorm Research
Miami, Florida, 33176, United States
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CCM Clinical Research Group, LLC
Miami, Florida, 33133, United States
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Case Western Reserve University
Cleveland, Ohio, 44106, United States
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Cedars Sinai, Los Angeles
Los Angeles, California, 90048, United States
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Columbia University Irving Medical Center
New York, New York, 10032, United States
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Conquest Research
Winter Park, Florida, 32789, United States
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Dent Neurologic Institute
Amherst, New York, 14226, United States
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Emory University Goizueta Alzheimer's Disease Research Center(GADRC)
Atlanta, Georgia, 30329, United States
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Froedtert and Medical College of Wisconsin
Milwaukee, Wisconsin, 53226, United States
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Geisinger Memory and Cognition Center
Wilkes-Barre, Pennsylvania, 18711, United States
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Gonzalez MD & Aswad MD Health Services
Miami, Florida, 33135, United States
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Integrative Clinical Trials
Brooklyn, New York, 11229, United States
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JEM Research Institute
Atlantis, Florida, 33462, United States
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KCA Neurology
Tennessee City, Tennessee, 37067, United States
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MedVadis Research
Waltham, Massachusetts, 02451, United States
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Miami Jewish Health
Miami, Florida, 33137, United States
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Mount Sinai School of Medicine
New York, New York, 10029, United States
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Nathan Kline Institute for Psychiatric Research
New York, New York, 10962, United States
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Neuropsychiatric Research Center of Southwest Florida
Fort Myers, Florida, 33912, United States
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Northwestern University Feinberg School of Medicine
Chicago, Illinois, 60611, United States
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Ohio State University
Columbus, Ohio, 43221, United States
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Oregon Health & Science University (OHSU)
Portland, Oregon, 97239, United States
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Pacific Research Network
Lemon Grove, California, 91945, United States
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Perseverance Research Center, LLC
Scottsdale, Arizona, 85253, United States
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Ralph H. Johnson VA Health Care System
Charleston, South Carolina, 29401, United States
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Rhode Island Hospital
Providence, Rhode Island, 02903, United States
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Rush University Medical Center
Chicago, Illinois, 60612, United States
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Rutgers, Robert Wood Johnson Medical School
New Brunswick, New Jersey, 08901, United States
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SUNY Upstate Medical University
Syracuse, New York, 13210, United States
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Sandhill Research, LLC d/b/a Accel Research Sites
Decatur, Georgia, 30030, United States
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Southern Illinois University
Springfield, Illinois, 62702, United States
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St. Joseph's Hospital and Medical Center/Barrow Neurological Institute
Phoenix, Arizona, 85013, United States
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Syrentis Clinical Research
Santa Ana, California, 92705, United States
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The Neuron Clinic
Chula Vista, California, 91910, United States
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University of California, Irvine
Irvine, California, 92697, United States
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University of Iowa
Iowa City, Iowa, 52242, United States
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University of Kentucky
Lexington, Kentucky, 40504, United States
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University of Michigan, Ann Arbor
Ann Arbor, Michigan, 48109, United States
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University of North Texas Health Science Center
Fort Worth, Texas, 76107, United States
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University of Southern California
Los Angeles, California, 90033, United States
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Weill Cornell Medical College
New York, New York, 10021, United States
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