The Effect of Vitamin B3 on Substrate Metabolism, Insulin Sensitivity, and Body Composition in Obese Men

June 29, 2017 updated by: Ole Dollerup, Aarhus University Hospital

The Effect of Nicotinamide Ribose (NR) on Substrate Metabolism, Insulin Sensitivity, and Body Composition in Obese Men - a Randomized, Placebo Controlled Clinical Trial

In animals, treatment with vitamin B3 improved insulin sensitivity and substrate metabolism. It is currently not know if vitamin B3 has the same positive effects in humans. In the current study the effect of a 3 month treatment with vitamin B3 on insulin sensitivity and substrate metabolism in obese men will be investigated.

Study Overview

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Not Applicable

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

      • Aarhus, Denmark, 8000
        • Medical Research Laboratories, Aarhus University Hospital

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

40 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • written signed consent
  • male
  • BMI>30 kg/(m2)
  • age: 40-70
  • no medication
  • non-smoker

Exclusion Criteria:

  • endocrine disease
  • other severe disease
  • high daily activity level (>30 min / day)

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
lime tablets
Experimental: Nicotinamide riboside (NR, Vit B3)
NIAGEN (ChromaDex) 1 g x 2 orally per day

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Insulin sensitivity
Time Frame: Change from baseline in insulin sensitivity at 3 months
determined by a hyperinsulineamic clamp
Change from baseline in insulin sensitivity at 3 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Substrate metabolism
Time Frame: Change from baseline in substrate metabolism at 3 months
measured by indirect calorimetry
Change from baseline in substrate metabolism at 3 months
body composition
Time Frame: Change from baseline in body composition at 3 months
measured by DEXA scan
Change from baseline in body composition at 3 months
Activation of satellite cells
Time Frame: Change from baseline in activation of satellite cells at 3 months
measured by immunohistochemestry
Change from baseline in activation of satellite cells at 3 months
lipid accumulation in liver and skeletal muscle tissue
Time Frame: Change from baseline in liver and muscle lipid content at 3 months
determined by MR-spectroscopy
Change from baseline in liver and muscle lipid content at 3 months
glucose turnover
Time Frame: Change from baseline in glucose turnover at 3 months
determined by glucose tracer techniques
Change from baseline in glucose turnover at 3 months
insulin signalling in skeletal muscle and adipose tissue biopsies
Time Frame: Change from baseline in insulin signaling at 3 months
western blotting
Change from baseline in insulin signaling at 3 months
Palmitate turnover
Time Frame: Change from baseline in palmitate turnover at 3 months
determined by palmitate tracer techniques
Change from baseline in palmitate turnover at 3 months
Gut microbiota
Time Frame: Change from baseline in composition of gut microbiota at 3 months
Intestinal bacteria composition by whole genome sequencing
Change from baseline in composition of gut microbiota at 3 months
Incretin hormone secretion
Time Frame: Change from baseline in incretion hormone secretion at 3 months
Determined by measurement of incretin homones during an oral glucose tolerance test (OGTT)
Change from baseline in incretion hormone secretion at 3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Collaborators

Investigators

  • Principal Investigator: Ole Dollerup, MD, The Novo Nordisk Foundation Center for Basic Metabolic Research, Integrative Physiology, University of Copenhagen

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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)

January 4, 2016

Primary Completion (Actual)

April 4, 2017

Study Completion (Actual)

April 4, 2017

Study Registration Dates

First Submitted

November 20, 2014

First Submitted That Met QC Criteria

November 28, 2014

First Posted (Estimate)

December 1, 2014

Study Record Updates

Last Update Posted (Actual)

July 2, 2017

Last Update Submitted That Met QC Criteria

June 29, 2017

Last Verified

June 1, 2017

More Information

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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