Part 2 of a 2-part open-label clinical trial evaluating repeated nicotinamide riboside parenteral administration: 90 days of at-home subcutaneous injections

Nicotinamide riboside (NR), a precursor to the essential coenzyme nicotinamide adenine dinucleotide (NAD+), has been extensively studied following oral administration, while the longer-term safety and physiological effects of injectable NR remain less characterized. Following an initial in-clinic phase evaluating repeat intramuscular (IM) and subcutaneous (SC) administration of pharmaceutical-grade NR, participants transitioned to an at-home phase designed to assess the safety, feasibility, and exploratory physiological effects of repeated self-administered SC administration. Participants cont

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