~18 spots leftby Apr 2026

Nicotinamide Riboside for Acetaminophen Toxicity

Recruiting in Palo Alto (17 mi)
mm
Overseen bymarie migaud, PHD
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 1
Recruiting
Sponsor: University of South Alabama
Disqualifiers: Allergy to acetaminophen, others
No Placebo Group
Approved in 2 Jurisdictions

Trial Summary

What is the purpose of this trial?

Over-the-counter drugs like acetaminophen (e.g., Tylenol®) can be detrimental. In space, astronauts who have pain and constant discomfort use acetaminophen extensively. Investigators are studying the effects of acetaminophen under space-like conditions since acetaminophen might affect astronauts' health. Investigators also wish to see whether a dietary supplement can reduce some negative effects of acetaminophen. It is believed that acetaminophen promotes the productions of chemicals in the body that could be toxic. In this study, measurements of these chemicals in urine after ingestion of 1 tablet of acetaminophen and compare these measurements to when acetaminophen is taken at the same time as a dietary supplement. This study will also explore whether these products are more abundant when blood is placed under conditions that mimic space. Therefore, this study will collect blood from a few volunteers who took acetaminophen, and acetaminophen with the dietary supplement.

Will I have to stop taking my current medications?

The trial information does not specify whether you need to stop taking your current medications. However, it focuses on the effects of acetaminophen, so you may need to continue taking it as part of the study.

What data supports the effectiveness of the drug Nicotinamide Riboside for acetaminophen toxicity?

Research shows that increasing NAD+ levels, which Nicotinamide Riboside can do, may help protect the liver from damage caused by acetaminophen overdose. This is because higher NAD+ levels can improve the liver's ability to handle oxidative stress and repair DNA damage.12345

Is Nicotinamide Riboside safe for human use?

Nicotinamide Riboside (NR), a form of vitamin B3, has been studied for safety and is generally recognized as safe for use in foods and supplements. Clinical trials in humans have shown no significant adverse effects, and studies in animals have determined safe dosage levels, although high doses may affect the liver, kidneys, ovaries, and testes.12567

How does nicotinamide riboside differ from other treatments for acetaminophen toxicity?

Nicotinamide riboside is unique because it is a form of vitamin B3 that boosts NAD+ levels in the body, which is not a typical approach for treating acetaminophen toxicity. This treatment is novel as it leverages the body's metabolic pathways to potentially counteract toxicity, unlike standard treatments that focus on directly neutralizing the toxic effects of acetaminophen.12568

Research Team

mm

marie migaud, PHD

Principal Investigator

University of South Alabama

Eligibility Criteria

This trial is for people who use acetaminophen (like Tylenol) to manage pain and discomfort. It's especially relevant for those in conditions similar to space travel, where such drug use is common. Participants must not be allergic to acetaminophen or the dietary supplement nicotinamide riboside.

Exclusion Criteria

Individual allergic to acetaminophen or nicotinamide riboside

Trial Timeline

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive acetaminophen and acetaminophen with nicotinamide riboside to study their effects under space-like conditions

1 day
Multiple visits for blood and urine collection

Follow-up

Participants are monitored for safety and effectiveness after treatment

1-2 weeks

Treatment Details

Interventions

  • Nicotinamide Riboside (Other)
Trial OverviewThe study tests if a dietary supplement called Nicotinamide Riboside can reduce harmful chemicals produced by taking acetaminophen. Volunteers will take both substances together, and their urine and blood samples will be analyzed under space-like conditions.
Participant Groups
2Treatment groups
Experimental Treatment
Active Control
Group I: Tylenol and Nicotinamide RibosideExperimental Treatment2 Interventions
Group II: Tylenol OnlyActive Control1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

University of South Alabama

Lead Sponsor

Trials
44
Recruited
15,800+

University of Alabama at Birmingham

Collaborator

Trials
1,677
Recruited
2,458,000+
Kierstin Kennedy profile image

Kierstin Kennedy

University of Alabama at Birmingham

Chief Medical Officer since 2022

MD

S. Dawn Bulgarella profile image

S. Dawn Bulgarella

University of Alabama at Birmingham

Chief Executive Officer since 2023

BSc in Commerce and Business Administration from the University of Alabama, MS in Health Administration from the University of Alabama at Birmingham

National Aeronautics and Space Administration (NASA)

Collaborator

Trials
32
Recruited
1,900+

Rutgers University

Collaborator

Trials
127
Recruited
2,814,000+
Dr. Carolyn Seyss profile image

Dr. Carolyn Seyss

Rutgers University

Chief Medical Officer since 2023

PharmD

Dr. Joseph A. Barone profile image

Dr. Joseph A. Barone

Rutgers University

Chief Executive Officer since 2016

PharmD, FCCP

University of Nevada, Las Vegas

Collaborator

Trials
81
Recruited
14,700+

Dr. Albert Bourla

University of Nevada, Las Vegas

Chief Executive Officer since 2019

PhD in Molecular Biology, Harvard Medical School

Dr. Patrizia Cavazzoni

University of Nevada, Las Vegas

Chief Medical Officer

McGill University, MD

Findings from Research

Nicotinamide riboside (NR) is a form of vitamin B3 that effectively increases NAD+ levels, which may help counteract age-related declines in this important metabolite.
In a 90-day safety study on Sprague Dawley rats, NR-E showed no significant adverse effects at doses up to 1,200 mg/kg/d, establishing a no-observed-adverse-effect-level (NOAEL) of 500 mg/kg/d for males and 1,200 mg/kg/d for females.
Safety Assessment of High-Purity, Synthetic Nicotinamide Riboside (NR-E) in a 90-Day Repeated Dose Oral Toxicity Study, With a 28-Day Recovery Arm.Marinescu, AG., Chen, J., Holmes, HE., et al.[2021]
Dihydronicotinamide riboside (NRH) is a newly synthesized compound that significantly increases NAD+ concentrations in mammalian cells by 2.5-10 times within just 1 hour of administration, outperforming nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN) at equivalent doses.
NRH enhances the NAD+/NADH ratio and protects cells from death caused by NAD+-depleting agents without inducing apoptosis or increasing lactate levels, suggesting it acts as a precursor to NAD+ through a novel metabolic pathway.
Dihydronicotinamide riboside is a potent NAD+ concentration enhancer in vitro and in vivo.Yang, Y., Mohammed, FS., Zhang, N., et al.[2021]
The study found that the enzyme NAD kinase (NADK) is linked to acetaminophen (APAP)-induced acute liver injury (ALI), with higher levels of NADK correlating with increased liver damage in a dose- and time-dependent manner.
Inhibiting NADK with methotrexate (MTX) reduced liver injury and oxidative stress by increasing NAD+ levels, which improved the liver's antioxidant capacity and reduced DNA damage, suggesting a potential therapeutic target for APAP overdose.
Inhibition of NAD kinase elevates the hepatic NAD+ pool and alleviates acetaminophen-induced acute liver injury in mice.Liao, C., Zhang, L., Jiang, R., et al.[2022]

References

Safety assessment of nicotinamide riboside, a form of vitamin B3. [2019]
Safety Assessment of High-Purity, Synthetic Nicotinamide Riboside (NR-E) in a 90-Day Repeated Dose Oral Toxicity Study, With a 28-Day Recovery Arm. [2021]
Dihydronicotinamide riboside is a potent NAD+ concentration enhancer in vitro and in vivo. [2021]
Inhibition of NAD kinase elevates the hepatic NAD+ pool and alleviates acetaminophen-induced acute liver injury in mice. [2022]
Safety and Metabolism of Long-term Administration of NIAGEN (Nicotinamide Riboside Chloride) in a Randomized, Double-Blind, Placebo-controlled Clinical Trial of Healthy Overweight Adults. [2023]
Possible Adverse Effects of High-Dose Nicotinamide: Mechanisms and Safety Assessment. [2021]
Safety evaluation after acute and sub-chronic oral administration of high purity nicotinamide mononucleotide (NMN-C®) in Sprague-Dawley rats. [2021]
Nicotinamide Riboside-The Current State of Research and Therapeutic Uses. [2021]