On 01 March 2008 the PharMetrX Graduate Research Training Program kicked off and has qualified more than 100 young scientists in the exciting field of pharmacometrics since. Congratulations and a very happy 15^th Birthday! We are very much looking forward to welcoming this year’s PharMetrX PhD students soon: Zrinka Duvnjak, Miriam Happ, Marian Klose and Johannes Tillil!