Tracing the Metabolic Flux of Orally Administered NAD+ Precursors (NCT06882096)
Tracing the Metabolic Flux of Orally Administered NAD+ Precursors in Healthy Young and Older Adults
🩺 Plain-English Summary (8th-Grade Level)
We are doing this research to learn how healthy younger and older adults use two forms of vitamin B3-called nicotinamide mononucleotide (NMN) and nicotinamide (NAM)-to make NAD+. NAD+ is a natural substance that cells need for energy and other important processes. Our goal is to find out how these NAD precursors are absorbed and metabolized and how they raise NAD+ in different tissues. Who can join? Healthy adults men and women aged 18 to 40 (younger group) or 65 and older (older group) Participants with a body mass index ranging between 19 and 35 No major health issues like diabetes or severe kidney disease What will happen? Participants will take labeled or unlabeled NMN or NAM by mouth every day for 14 days. Researchers will collect blood, urine, and stool samples. Researchers also do a small muscle biopsy (under local numbing) twice to check how these NAD precursors raise NAD+ in muscle. Why is this important? NAD+ levels may drop as people age, and this drop could affect overall health and energy in cells. A better understanding of how NMN and NAM are metabolized in the body to raise NAD+ levels in both younger and older adults may help us optimize dosing and strategies for raising NAD in older people. Possible benefits and risks: Participants may not get any direct health benefit from this study; the main goal is to gather new knowledge. NMN and NAM appear safe in the doses used. A muscle biopsy may cause soreness or bruising. Researchers will monitor participants closely for any side effects throughout the study.
Who can join: Review the eligibility criteria below.
Location: Brigham and Women's Hospital — Boston, Massachusetts
Age range: 18 Years
🧪 Interventions in This Study
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- Brigham and Women's Hospital — Boston, Massachusetts
📞 Contact the Study Coordinator
Phone: (617) 525-9154
Email: mchandra@bwh.harvard.edu
Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
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💡 How to Participate
- Check the checklist above to see if you may qualify.
- Contact the study coordinator using the phone/email above.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.