IDX899/GSK2248761 Trials Completed by GSK or IDIX DDI study in healthy volunteers (conducted by GSK): <a href="http://clinicaltrials.gov/ct2/show/NCT00920088" rel="nofollow" target="_blank">http://clinicaltrials.gov/ct2/show/NCT00920088</a> Phase-2 28-day ascending-dose study (conducted by IDIX): <a href="http://clinicaltrials.gov/ct2/show/NCT00945282" rel="nofollow" target="_blank">http://clinicaltrials.gov/ct2/show/NCT00945282</a>