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FDA rejection and regulatory status Development timeline: 2000s: Developed for Parkinson's/Alzheimer's 2008: Phase 2 obesity trials (successful) 2010: Phase 3 trials initiated 2010: Development halted due to safety concerns 2012: FDA rejected obesity indication Present: No approved indication anywhere Why FDA rejected: Cardiovascular safety concerns primary reason Increased heart rate and blood pressure Risk-benefit ratio unfavorable Safer alternatives available ( GLP-1 agonists ) Development company abandoned pursuit No current path to approval Regulatory status by country: Current legal classification: Not a controlled substance (not scheduled) Not approved for any human use Sold as "research chemical" only "Not for human consumption" labels Legal gray area (enforcement rare) See are peptides legal guide at SeekPeptides
Because NAD is a critical cofactor for cellular energy production, DNA repair, and sirtuin activity, modulation of this pathway has attracted growing interest in metabolic disease and healthy aging research
