Using niacin to treat Alzheimer's disease

Nicotinic Acid for the Treatment of Alzheimer's Disease

Phase1; Phase2 Interventional Indiana University · NCT06582706

This study is testing if taking niacin can help people aged 60-85 with mild to moderate Alzheimer's disease by looking at how it affects their brain and overall health.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Enrollment30 (estimated)
Ages60 Years to 85 Years
SexAll
SponsorIndiana University Academic / other
Locations1 site (Indianapolis, Indiana)
Trial IDNCT06582706 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to investigate the effects of extended-release niacin on patients with Alzheimer's disease by measuring its penetration into the cerebrospinal fluid. Participants aged 60-85 with mild to moderate dementia will receive either niacin or a placebo in a randomized, double-blind manner. The study will assess the levels of nicotinic acid in blood and cerebrospinal fluid, as well as the safety and tolerability of niacin. The goal is to establish a dose-response curve and evaluate the potential benefits of niacin in targeting neurodegenerative processes associated with Alzheimer's.

Who should consider this trial

Good fit: Ideal candidates are males and females aged 60-85 with a clinical diagnosis of mild to moderate Alzheimer's disease.

Not a fit: Patients with contraindications to lumbar puncture or severe cerebrovascular disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a new therapeutic option for managing Alzheimer's disease and improving cognitive function.

How similar studies have performed: While niacin has been explored in other contexts, this specific application for Alzheimer's disease is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Age 60-85 males or females

Clinically have a diagnosis of Alzheimer's disease in the mild-moderate dementia range Mini Mental Status Examination (MMSE) between 14-24 inclusive

Must be on a stable dose (30 days minimum) of a cholinesterase inhibitor and/or memantine (or absence thereof)

Have a reliable co-participant who has at least 3 days of face-to-face contact per week with the patient and ensures medical compliance with the study drug.

Neuroimaging (MRI or CT scan of the brain) should be available within 1 year of screening

Exclusion Criteria:

Any contraindication to clinical lumbar puncture including increased intracranial pressure, posterior fossa mass, bleeding diathesis, use of antiplatelet medications other than aspirin, use of any anticoagulant

Severe cerebrovascular disease

History of large territory stroke

Allergy or sensitivity to B-vitamins or nicotinic acid

History of elevated liver function tests (ALT/AST \> 2x the upper limit of normal) or known liver disease

Current consumption of Vitamin B3 (any form, including nicotinic acid) - including multivitamins and energy drinks. Participants taking a supplement containing Niacin must washout for 4 weeks prior to screening to participate.

Renal impairment of Stage 2 or greater

Where this trial is running

Indianapolis, Indiana

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Alzheimer Disease
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.