%0 Journal Article %T Repeat dose NRPT (nicotinamide riboside and pterostilbene) increases NAD+ levels in humans safely and sustainably: a randomized, double-blind, placebo-controlled study %A Dan Alminana %A Eric Marcotulli %A Leonard Guarente %A Mal Evans %A Mark Morris %A Ryan W. Dellinger %A Santiago Roel Santos %J Archive of "NPJ Aging and Mechanisms of Disease". %D 2017 %R 10.1038/s41514-017-0016-9 %X Clinical trial diagrams. a Clinical Trial Design diagram. Schematic depicting the randomized, double-blind, placebo controlled, three-arm parallel group study. The study consisted of a single eight-week study period. Clinic visits occurred at day 0 (baseline), day 30, and day 60. Subjects were asked to fast 12£¿h prior to each clinic visit. Each clinic visit consisted of a physical exam including as well as blood draws to evaluate safety and efficacy endpoints of the trial. b Clinical Trial Flow Diagram. Schematic depicting recruitment and disposition of study participants. A total of 159 potential subjects were screened to successfully enroll 120 eligible subjects and randomize them 1:1:1 to the three arms. One-hundred fifteen subjects completed the 60-day stud %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5701244/