New hope for Alzheimer's? phase 3 trial of brain-fueling compound begins
NCT ID NCT05809908
First seen Jun 27, 2026 · Last updated Jul 02, 2026 · Updated 2 times
Summary
This study tests whether a daily dose of tricaprilin, a type of fat that may provide energy to brain cells, can improve memory, thinking, and daily function in people with mild-to-moderate Alzheimer's disease. About 535 participants will receive either tricaprilin or a placebo for 26 weeks. The goal is to see if this approach can slow down cognitive decline.
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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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About 535 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Dec 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 2029
An estimate. End dates often move.
- 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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55 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Key Inclusion Criteria: * Mini Mental State Exam (MMSE) score between 14 to 24 * Meets diagnostic clinical criteria of probable Alzheimer's disease dementia according to the NIA-AA criteria * Magnetic resonance imaging (MRI) scan less than 12 months before Baseline compatible with a diagnosis of probable AD * Plasma biomarker result supporting a diagnosis of AD before Baseline (Aβ42/40 and/or pTau217) * Confirmed APOE4 genotype result prior to Baseline * Participants taking the following cholinesterase inhibitors: donepezil, galantamine, or rivastigmine; and/or sodium oligomannate (GV-971), and/or memantine, and/or GLP-1 antagonist and/or other agents which may impact cognition are eligible for enrolment: a) If the participant has been taking such medication(s)/products for 3 months or more at Screening Visit 1; b) If the current dosage regimen is within the approved dose range; c) The daily dose has remained unchanged for at least 6 weeks prior to screening; d) If the dose is not expected to change during study participation Key Exclusion Criteria: * Has any medical/neurological/psychiatric condition, other than AD, that could explain the participant's dementia or cognitive impairment, such as but not limited to e.g., structural abnormality, traumatic brain injury, stroke, epilepsy, Parkinson's disease, alcohol-related dementia, current major depressive episode * The following GI conditions are exclusionary: a) Inflammatory bowel disease (e.g., ulcerative colitis or Crohn's disease), GI bleed (upper or lower), or peptic ulcer disease; any of these conditions are exclusionary, if active in the past 5 years. Participants with remote quiescent disease, at the Investigators discretion , are not excluded; b) Participants with current or a history of (within the last 5 years) any of the following conditions are excluded: clinically significant reflux disease (e.g., Barrett's oesophagus, stricture, ulcer, haemorrhage), or severe gastroesophageal reflux disease that, in the opinion of the Investigator, is not well-controlled by medication; c) Irritable bowel syndrome, diverticular disease (e.g., diverticulosis, or diverticulitis), or chronic gastritis; any of these conditions are exclusionary if there has been an acute event within 1 year prior to Screening; d) History of gastric food intolerance, whether it be allergy or chronic oversensitivity, or a history of stomach upset reaction to a variety of foods * Current or previous treatment with any anti-amyloid or anti-Tau antibodies such as lecanemab and donanemab within 6 months prior to the day of screening
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
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Contacts and locations
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Study contacts
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Contact
Email: •••••@•••••
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