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Showing 1–24 of 28 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Niagen Clear all
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety & Efficacy of Nicotinamide Riboside Supplementation for Improving Physiological Function in Middle-Aged and Older Adults

NCT02921659
View directory record Official record
Conditions
Aging
Interventions
Niagen™, Placebo
Dietary Supplement
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
55 Years to 79 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 30, 2016 · Synced Sep 6, 2026, 10:24 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

ACEs, SIRT1, and Premature Vascular Aging in Humans

NCT07073352
View directory record Official record
Conditions
Adverse Childhood Experiences, Endothelial Dysfunction
Interventions
Nicotinamide Riboside, Placebo
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 30 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Iowa City, Iowa • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Not applicable Interventional Results available

Pilot Study to Evaluate the Effect of Nicotinamide Riboside on Immune Activation in Psoriasis

NCT04271735
View directory record Official record
Conditions
Psoriasis, Atherosclerotic Cardiovascular Disease, Obesity, Dyslipidemia, Cardiometabolic Diseases
Interventions
Niagen, Placebo
Dietary Supplement · Other
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 80 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 26, 2023 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

"Pharmacokinetic Study of Nicotinamide Riboside"

NCT02689882
View directory record Official record
Conditions
Metabolic Disturbance
Interventions
nicotinamide riboside
Dietary Supplement
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 50 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 7, 2018 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Nicotinamide Riboside on Metabolism and Vascular Function

NCT03501433
View directory record Official record
Conditions
Aging, Lipemia
Interventions
Nicotinamide riboside chloride (Niagen), Placebo
Dietary Supplement
Lead sponsor
Iowa State University
Other
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Ames, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 24, 2020 · Synced Sep 6, 2026, 10:24 PM EDT
Terminated Not applicable Interventional

Nicotinamide Riboside in Ulcerative Colitis

NCT05561738
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Nicotinamide Riboside Chloride, Placebo, Standard of Care
Dietary Supplement · Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
Up to 18 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Not applicable Interventional Results available

Crossover Trial for Nicotinamide Riboside in Subjective Cognitive Decline and Mild Cognitive Impairment

NCT04078178
View directory record Official record
Conditions
Cognition Disorders in Old Age, Mild Cognitive Impairment, Cognitive Decline
Interventions
Niagen, Placebo Comparator
Dietary Supplement
Lead sponsor
Steven E Arnold, MD
Other
Eligibility
60 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 28, 2024 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Nicotinamide Adenine Dinucleotide (NAD) on Brain Function and Cognition

NCT02942888
View directory record Official record
Conditions
Mild Cognitive Impairment, NAD
Interventions
Nicotinamide riboside, Sugar Pill
Dietary Supplement
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
65 Years and older
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
2
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Nicotinamide Riboside on Mitochondrial Function in Li-Fraumeni Syndrome

NCT03789175
View directory record Official record
Conditions
Cancer, Skin Fibroblasts, Muscle Weakness
Interventions
Nicotinamide Riboside (NR)
Dietary Supplement
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 7, 2020 · Synced Sep 6, 2026, 10:24 PM EDT
Terminated Phase 2 Interventional Results available

The Effect of Nicotinamide Riboside on Skeletal Muscle Function in Heart Failure Subjects

NCT03565328
View directory record Official record
Conditions
Heart Failure
Interventions
Nicotinamide Riboside
Dietary Supplement
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 75 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 27, 2020 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Phase 4 Interventional Results available

Clinical Trial of Niagen to Examine Recovery in People With Persistent Cognitive and Physical Symptoms After COVID-19

NCT04809974
View directory record Official record
Conditions
Covid19, Sequelae of; Infection, Cognitive Symptom
Interventions
Niagen
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced Sep 6, 2026, 10:24 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Nicotinamide Riboside, Vit B3 Analogue, and Brain Energy Metabolism

NCT07649161
View directory record Official record
Conditions
Healthy Adult
Interventions
Niagen®
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Phase 1Phase 2 Interventional Results available

NAD Therapy for Improving Memory and Brain Blood Flow in Older Adults With Mild Cognitive Impairment

NCT03482167
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Niagen®, Placebo
Drug · Other
Lead sponsor
University of Delaware
Other
Eligibility
60 Years to 90 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Sep 6, 2026, 10:24 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Absorption and Tolerability of Injectable Administration of Niagen®+, as Compared to NAD+

NCT06919328
View directory record Official record
Conditions
Healthy Aging
Interventions
Niagen®, NAD+, Placebo
Dietary Supplement · Other
Lead sponsor
Nutraceuticals Research Institute
Other
Eligibility
40 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Huntsville, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Sep 6, 2026, 10:24 PM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Double-blind Placebo Controlled Study to Evaluate the Effect of NAD+ Boosting With Nicotinamide Riboside on Immunometabolism and Immunity in Systemic Lupus Erythematosus

NCT06032923
View directory record Official record
Conditions
Systemic Lupus Erythematosus (Sle)
Interventions
Nicotinamide Riboside
Dietary Supplement
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 120 Years · Female only
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 6, 2026, 10:24 PM EDT
Active, not recruiting Not applicable Interventional

The Effect of Exercise and Nicotinamide Riboside Muscle Health and Insulin Resistance in Survivors of Childhood Cancer

NCT05023993
View directory record Official record
Conditions
Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm, Prediabetes
Interventions
Exercise Intervention, Nicotinamide Riboside
Other · Dietary Supplement
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 6, 2026, 10:24 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Randomized, Open-label, Safety Study of Subcutaneous and Intramuscular Injections of Niagen® Plus

NCT07251608
View directory record Official record
Conditions
Healthy Volunteer, Fatigue
Interventions
Niagen®Plus
Drug
Lead sponsor
ChromaDex, Inc.
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 25, 2025 · Synced Sep 6, 2026, 10:24 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Nicotinamide Riboside for Treating Elevated Systolic Blood Pressure and Arterial Stiffness in Middle-aged and Older Adults

NCT03821623
View directory record Official record
Conditions
Hypertension, Aging
Interventions
Nicotinamide riboside, Placebo
Drug · Other
Lead sponsor
Douglas Seals
Other
Eligibility
50 Years and older
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Nicotinamide Riboside in Systolic Heart Failure

NCT03423342
View directory record Official record
Conditions
Heart Failure, Systolic
Interventions
nicotinamide riboside, Placebo
Dietary Supplement · Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 15, 2022 · Synced Sep 6, 2026, 10:24 PM EDT
Terminated Phase 1Phase 2 Interventional

Nicotinamide Riboside for Diabetic Neuropathy

NCT03685253
View directory record Official record
Conditions
Diabetic Neuropathy Peripheral
Interventions
Niagen, Placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
30 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 5, 2026 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Phase 2 Interventional Results available

Nicotinamide Riboside in SARS-CoV-2 (COVID-19) Patients for Renal Protection

NCT04818216
View directory record Official record
Conditions
SARS-CoV-2 Infection, Acute Kidney Injury
Interventions
Placebo, Nicotinamide riboside
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
4
States / cities
New York, New York • San Antonio, Texas • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 25, 2023 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Early Phase 1 Interventional

Effects of Nicotinamide Riboside on Bioenergetics and Oxidative Stress in Mild Cognitive Impairment/Alzheimer's Dementia

NCT04430517
View directory record Official record
Conditions
Mild Cognitive Impairment, Mild Alzheimer Disease
Interventions
Nicotinamide riboside
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
55 Years to 89 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 6, 2026, 10:24 PM EDT
Completed Phase 3 Interventional Results available

Nicotinamide Riboside With and Without Resveratrol to Improve Functioning in Peripheral Artery Disease

NCT03743636
View directory record Official record
Conditions
Peripheral Artery Disease
Interventions
Nicotinamide riboside, Resveratrol, Placebo
Drug · Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Sep 6, 2026, 10:24 PM EDT
Active, not recruiting Phase 2 Interventional

NIAGEN and Persistent Chemotherapy-Induced Peripheral Neuropathy

NCT04112641
View directory record Official record
Conditions
Chemotherapy-induced Peripheral Neuropathy
Interventions
Nicotinamide riboside, Placebo capsules
Drug
Lead sponsor
Donna Hammond, PhD
Other
Eligibility
18 Years to 85 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 6, 2026, 10:24 PM EDT