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Study identifier: NCT03954899 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Disease Modifying Potential of 5mg of Melatonin on Cognition and Brain Health in Aging

Condition: Mild Cognitive Impairment · Cognitive Decline · Healthy Aging  ·  Sponsor: Natalie Denburg

PhaseNA
Planned participants230
Who can joinAll sexes, 56 Years to 85 Years
Healthy volunteersYes

About this study

The study will examine whether 5mg melatonin (over the counter, OTC) over a 9-month period improves Alzheimer's disease (AD) biomarkers and cognitive function in two groups of individuals: those with mild cognitive impairment (MCI+) and those who are not (MCI-). AD biomarkers will be measured from cerebrospinal fluid (CSF) obtained from lumbar punctures. Cognitive function will be evaluated with routine neuropsychological tests. AS OF AUGUST 2024, THE LUMBAR PUNCTURE PROCEDURES FOR THIS CLINICAL TRIAL HAVE BEEN ELIMINATED. THAT IS, PARTICIPANTS ARE NO LONGER RECEIVING A LUMBER PUNCTURE. BUT ARE CONTINUING TO RECEIVE TWO SEPARATE BLOOD DRAWS FOR BIOMARKER TESTING.

This description comes directly from the study's public registry record.

Talk to the study team

Natalie Denburg, Ph.D  ·  3193846050  ·  natalie-denburg@uiowa.edu

Always discuss trial participation with your own doctor first.

Locations (1)

University of Iowa Hospitals & ClinicsIowa City, Iowa, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT03954899