"Pharmacokinetic Study of Nicotinamide Riboside"
2 other identifiers
interventional
8
1 country
1
Brief Summary
Nicotinamide riboside (NR) has been available over the counter as a nutraceutical (Niagen®, ChromaDex, Inc.) since the summer of 2013. However, classical pharmacokinetic (PK) data for NR have not been reported in humans. This study will use a recently-developed, whole blood assay for NR to assess the pharmacokinetics of NR at a maximum dose of 1000 mg twice daily, and will collect history, physical examination and laboratory data to determine the safety and tolerability of NR in eight, healthy volunteers. In addition, whole blood nicotinamide adenine dinucleotide (NAD) levels will be measured at each time point, to determine whether this NR dose significantly raises whole blood NAD levels.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_1
Started Nov 2015
Shorter than P25 for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 1, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2016
CompletedFirst Submitted
Initial submission to the registry
February 16, 2016
CompletedFirst Posted
Study publicly available on registry
February 24, 2016
CompletedFebruary 8, 2018
February 1, 2018
1 month
February 16, 2016
February 6, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Percent change in the average steady state concentration (Css) of nicotinamide riboside (NR) on day 9 (following up titration of nicotinamide riboside to 1000 mg by mouth twice daily) compared to pre-dose baseline.
Percent change in the average steady state concentration (Css) of nicotinamide riboside (NR) on day 9 (following up titration of nicotinamide riboside to 1000 mg by mouth twice daily) compared to pre-dose baseline. Group mean values will be compared by paired t-test, with correction for multiple primary endpoints.
9 days
Percent change in the average steady state concentration (Css) of nicotinamide adenine dinucleotide (NAD) on day 9 (following up titration of nicotinamide riboside to 1000 mg by mouth twice daily) compared to pre-dose baseline.
Percent change in the average steady state concentration (Css) of nicotinamide adenine dinucleotide (NAD) on day 9 (following up titration of nicotinamide riboside to 1000 mg by mouth twice daily) compared to pre-dose baseline. Group mean values will be compared by paired t-test, with correction for multiple primary endpoints.
9 days
Secondary Outcomes (5)
Effect of nicotinamide riboside on serum potassium levels
9 days
Effect of nicotinamide riboside on serum creatine kinase levels
9 days
Effect of nicotinamide riboside on serum glucose levels
9 days
Effect of nicotinamide riboside on serum uric acid levels
9 days
Effect of nicotinamide riboside on serum alanine aminotransferase levels
9 days
Study Arms (1)
pharmacokinetic study
EXPERIMENTALNicotinamide riboside dose up-titration: Days 1 and 2: 250 mg by mouth daily; Days 3 and 4: 250 mg by mouth twice daily; Days 5 and 6: 500 mg by mouth twice daily; Days 7 and 8: 1000mg by mouth twice daily; Day 9: single dose of 1000mg by mouth followed by 24 hour pharmacokinetic study.
Interventions
Nicotinamide riboside dose up-titration: Days 1 and 2: 250 mg by mouth daily; Days 3 and 4: 250 mg by mouth twice daily; Days 5 and 6: 500 mg by mouth twice daily; Days 7 and 8: 1000mg by mouth twice daily; Day 9: single dose of 1000mg by mouth followed by 24 hour pharmacokinetic study.
Eligibility Criteria
You may qualify if:
- Healthy, adult (age 21-50 years), male or female
- Willing and able to provide informed consent
You may not qualify if:
- Current smoking
- Receiving concurrent medications or supplements
- History of liver, renal, cardiovascular, endocrine, or neurological disease
- Known allergy to niacin or nicotinamide ribosome
- Unwilling to refrain from drinking alcohol during the duration of the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Washington
Seattle, Washington, 98195, United States
Related Publications (1)
Airhart SE, Shireman LM, Risler LJ, Anderson GD, Nagana Gowda GA, Raftery D, Tian R, Shen DD, O'Brien KD. An open-label, non-randomized study of the pharmacokinetics of the nutritional supplement nicotinamide riboside (NR) and its effects on blood NAD+ levels in healthy volunteers. PLoS One. 2017 Dec 6;12(12):e0186459. doi: 10.1371/journal.pone.0186459. eCollection 2017.
PMID: 29211728RESULT
MeSH Terms
Interventions
Study Officials
- PRINCIPAL INVESTIGATOR
Kevin D O'Brien, MD
University of Washington
- PRINCIPAL INVESTIGATOR
Rong Tian, MD
University of Washington
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Medicine
Study Record Dates
First Submitted
February 16, 2016
First Posted
February 24, 2016
Study Start
November 1, 2015
Primary Completion
December 1, 2015
Study Completion
February 1, 2016
Last Updated
February 8, 2018
Record last verified: 2018-02