- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05483465
The Effect of NAD Supplementation on Brain Vascular Health in Aging
May 8, 2023 updated by: University of Oklahoma
Effects of NAD Restoration on Neurovascular Coupling in Community Dwelling Older Adults
Daily consumption of one of the forms of Vitamin B3, the Nicotinamide Riboside (NR), energizes the body and combats cellular aging.
This study is designed to test whether NR can also improve brain health and memory.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Detailed Description
This study is designed to test the hypothesis that restoration of Nicotinamide Adenine Dinucleotide (NAD) levels with Nicotinamide Riboside (NR) in older adults will improve neurovascular coupling (NVC) responses and micro- and macrovascular endothelial function.
This hypothesis will be tested by assessing the effects of treatment with oral NR (1g/day per os for 8 weeks) or placebo (8 weeks) in community dwelling older adults (60-85 years of age).
Study Type
Interventional
Enrollment (Anticipated)
214
Phase
- Phase 4
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Oklahoma
-
Oklahoma City, Oklahoma, United States, 73117
- Recruiting
- University of Oklahoma Health Sciences Center
-
Contact:
- Andriy Yabluchanskiy, MD, PhD
- Phone Number: 405-271-8130
- Email: andriy-yabluchanskiy@ouhsc.edu
-
Contact:
- Peter Mukli, MD, PhD
- Phone Number: 47097 405-271-8000
- Email: peter-mukli@ouhsc.edu
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
60 years to 85 years (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- Age ≥60 and ≤85 years of age
- Adequate hearing and visual acuity to participate in the examinations
- Ability to read and write in English
- Competence to provide informed consent.
- Mini-Mental State Exam score ≥24
Exclusion Criteria:
- Vision or hearing impairment that would impair the ability to complete study assessments
- Active CNS disease including multiple sclerosis, uncontrolled seizures, active brain cancer
- Cerebrovascular accident other than TIA within 60 days prior to Visit 0
- Major psychiatric disease, including major depression not currently controlled on medications, alcohol or drug abuse
- Abnormal kidney function (creatinine >2mg/dL or EGFR <30mL/min) by most recent labs within 6 months prior to Visit 0
- Elevated liver enzymes (AST and/or ALT above x2 upper limit of normal) by most recent labs within 6 months prior to Visit 0
- Treatment with other NAD enhancers (Nicotinamide riboside or nicotinamide mononucleotide) within 4 weeks prior to randomization.
- Any other medical condition which, in the opinion of investigator, would render the patient inappropriate or too unstable to complete the study protocol
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: NR
Treatment with oral NR (1g/day per os for 8 weeks)
|
Oral NR, 1g/day per os for 8 weeks
Other Names:
|
Placebo Comparator: Control
Visually identical placebo (daily, per os, for 8 weeks)
|
Visually identical pill to NR, daily per os for 8 weeks
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in neurovascular coupling using functional near infrared spectroscopy (fNIRS)
Time Frame: 8 weeks
|
Functional near infrared spectroscopy (fNIRS) will be performed during the cognitive n-back task.
fNIRS approach generates data that represent a relative change in oxygenated and deoxygenated hemoglobin measured over the cortical brain tissues.
Neurovascular coupling will be evaluated as a change in oxy- and deoxy-hemoglobin between before and after treatment.
Units of measure - beta.
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in neurovascular coupling using transcranial Doppler
Time Frame: 8 weeks
|
Transcranial Doppler sonography will be used to measure the change in the blood flow velocities during the cognitive n-back task between before and after treatment.
Units of measure - % change between the n-back tasks.
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in neurovascular coupling using the dynamic retinal vessel analysis
Time Frame: 8 weeks
|
Flicker light-induced dilation of the retinal vessels (percentage increase over baseline diameter) will be measured in the right or left eye of each study participant using the Dynamic Vessel Analyzer (DVA, IMEDOS Systems, Jena, Germany).
Units of measure mm, reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in neuronal activity
Time Frame: 8 weeks
|
EEG signal will be collected to generate spectral data.
These data will be used for comparison of EEG activity between before and after treatment.
Units of measure - power spectral density.
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in microvascular endothelial function
Time Frame: 8 weeks
|
Changes in microvascular endothelial function will be assessed using laser speckle contrast imaging (LSCI) in the hand using the flow mediated dilation approach.
The change in skin perfusion is calculated and reported as a %change from baseline, between before and after treatment.
Units of measure - perfusion index (arbitrary units).
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in macrovascular endothelial function
Time Frame: 8 weeks
|
Changes in macrovascular endothelial function will be assessed using sonography during flow mediated dilation approach.
The change in brachial artery diameter (mm) is calculated and reported as a %change from baseline, between before and after treatment.
|
8 weeks
|
Change in deep tissue oxygen saturation
Time Frame: 8 weeks
|
Transcutaneous deep tissue oxygen saturation will be measured using the inSpectra near infrared device.
The data are calculated and reported as a %change from baseline, between before and after treatment.
|
8 weeks
|
Change in arterial stiffness
Time Frame: 8 weeks
|
The arterial stiffness will be measured using the pulse wave analysis approach (SphygmoCor, Atcor medical, Itasca IL, or similar).
Analysis generates the augmentation index which will be used for comparison before and after treatment.
|
8 weeks
|
Change in ECG
Time Frame: 8 weeks
|
ECG will be recorded for heart rate variability analysis.
The values of high frequency domain, low frequency domain, their ratio, as well as total power will be calculated and used for comparison before and after treatment.
|
8 weeks
|
Change in Glycocalyx - perfused boundary region
Time Frame: 8 weeks
|
Video recordings of the sublingual vasculature will be performed using the high definition video camera GlycoCheck (Microvascular health solutions).
Data collected will include perfused boundary region (um), and will be used for comparison before and after treatment.
|
8 weeks
|
Change in capillary density
Time Frame: 8 weeks
|
Video recordings of the sublingual vasculature will be performed using the high definition video camera GlycoCheck (Microvascular health solutions).
Data collected will include capillary density (mm/mm^2), and will be used for comparison before and after treatment.
|
8 weeks
|
Change in red blood cell velocity
Time Frame: 8 weeks
|
Video recordings of the sublingual vasculature will be performed using the high definition video camera GlycoCheck (Microvascular health solutions).
Data collected will include red blood cell velocity (um/sec), and will be used for comparison before and after treatment.
|
8 weeks
|
Change in Attention
Time Frame: 8 weeks
|
The allocation of one's limited capacities to deal with an abundance of environmental stimulation will be measured in a combined "Flanker Inhibitory Control and Attention Test".Units of measure - score (from 0 to 10, bigger number is better).
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in Episodic Memory
Time Frame: 8 weeks
|
Cognitive processes involved in the acquisition, storage and retrieval of new information, will be measured using the "Picture Sequence Memory Test".
Unit of measure - overall score (bigger number is better).
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in Working Memory
Time Frame: 8 weeks
|
The ability to store information until the amount of information to be stored exceeds one's capacity to hold that information will be measured using the "List Sorting Working Memory Test".
Unit of measure - overall score (bigger number is better).
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in Language
Time Frame: 8 weeks
|
Picture Vocabulary Test measures receptive vocabulary administered in a computer-adaptive test (CAT) format.
Respondents select the picture that most closely matches the meaning of the word, before and after treatment.
Unit of measure - overall score (bigger number is better).
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in Executive Function
Time Frame: 8 weeks
|
The capacity to plan, organize and monitor the executive of behaviors that are strategically directed in a goal-oriented manner will be measured using the "Dimensional Change Card Sort Test".
Units of measure - score (from 0 to 10, bigger number is better).
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Change in Processing Speed
Time Frame: 8 weeks
|
Pattern Comparison Processing Speed Test assesses the amount of information that can be processed within a certain unit of time.
Items are simple so as to purely measure processing speed.
Units of measure - score (from 0 to 130, bigger number is better).
Reported as a %change from baseline, before and after treatment.
|
8 weeks
|
Blood collection
Time Frame: 8 weeks
|
Blood samples will be collected to measure concentration of NAD metabolites for comparison before and after treatment.
Blood samples will also be used in in vitro assays to measure the effect of treatment on endothelial function.
|
8 weeks
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
May 3, 2023
Primary Completion (Anticipated)
June 1, 2027
Study Completion (Anticipated)
December 1, 2027
Study Registration Dates
First Submitted
July 29, 2022
First Submitted That Met QC Criteria
July 29, 2022
First Posted (Actual)
August 2, 2022
Study Record Updates
Last Update Posted (Actual)
May 10, 2023
Last Update Submitted That Met QC Criteria
May 8, 2023
Last Verified
May 1, 2023
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 14782
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
IPD Plan Description
The results may be uploaded to scientific online repositories such as PhysioNet (or other) as requested by the journal when data is submitted for publication.
In that case, all data will be de-identified and labeled by group+number (for example Placebo1, Placebo2, NR1, NR2, these IDs will be different from study IDs stored on the servers at the OUHSC) and supported by subjects' age, sex, comorbidities and treatments data.
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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