||||||||||IDX21459 / Merck (MSD) Enrollment change, Trial termination: Study Assessing Single and Multiple Doses of IDX21459 in Healthy and HCV-Infected Subjects (clinicaltrials.gov) - Aug 29, 2014 P1, N=48, Terminated, Sponsor: Idenix Pharmaceuticals N=91 --> 48 | Recruiting --> Terminated; Early termination of IDX21459 was due to integration of Merck's HCV antiviral pipeline has resulted in revisions of the clinical development plan.