At a glance
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NAD+ Precursor Supplementation With Exercise Training to Increase Aerobic Capacity in Friedreich's Ataxia
In Brief
A clinical study evaluating Nicotinamide Riboside, Placebo, and 1 other intervention for Friedreich Ataxia 1. Completed, enrolled 75 participants across 1 site.
Detailed Summary
Randomized, placebo-controlled trial with a 2x2 factorial design testing the effects of an NAD+ precursor (NR) and exercise on Peak VO2 and Si in Friedreich's Ataxia (FA). The primary objective of this research is to measure the effect of combination administration (NR + exercise) on aerobic capacity (Peak VO2) in FA. A key secondary objective is to measure the effect of combination administration (NR + exercise) on glucose homeostasis (Si) in FA.
Study Details
Timeline
Interventions
Investigators will use (Good Manufacturing Process) GMP-grade 300 mg capsules of the dietary supplement nicotinamide riboside (ChromaDex, Irvine CA). NR is distributed by ChromaDex, Inc., Irvine, CA. NR is available as 300 mg capsules. The dietary supplement will be re-labeled by the Hospital of the University of Pennsylvania (HUP) Investigational Drug Service according to FDA regulations, including subject and physician name and NR or Placebo 300 mg capsules.
The matched placebo will contain the same excipients without the active supplement and is generally recognized as safe. The placebo will be covered in an identical capsule (NR will be covered in the same capsule).
The exercise program consists of at-home training sessions: 3 aerobic sessions per week on the in-home bike trainer, and 2 resistance exercise sessions per week using resistance bands. On aerobic training days, subjects will be given instruction on a recumbent Catrike trainer, titrated such that they spend 20 minutes at their target heart rate as determined by baseline Exercise Stress Test (EST) (60-80% of their heart rate at peak VO2) and as measured by their wearable device. On resistance training days, subjects will be given instructions to complete circuits of resistance exercises. Resistance training intensity (as determined by graded resistance bands) will be maintained at 60% of pre-training maximal voluntary contraction for each muscle group.