LONDON (Dow Jones)--Shionogi-ViiV Healthcare LLC Wednesday said it will be progressing its once-daily, unboosted investigational integrase inhibitor, S/GSK1349572, or 572, into Phase III clinical trials. MAIN FACTS: -This decision is based on promising results from two Phase IIb trials, SPRING-1 and VIKING. -Trials explored the efficacy of '572 in treatment-naive HIV subjects as well as in treatment-experienced subjects resistant to raltegravir. Further study in Phase III is necessary to determine conclusively the safety, efficacy and resistance profile of '572. -By Ian Walker, Dow Jones Newswires; 44-20-7842-9296;
[email protected] (END) Dow Jones Newswires July 21, 2010 04:19 ET (08:19 GMT)