FOSTER CITY, Calif.--(BUSINESS WIRE)--Gilead Sciences, Inc. (Nasdaq:GILD) provided an update today on the development of the fixed-dose combination of Truvada® (emtricitabine and tenofovir disoproxil fumarate) and Tibotec Pharmaceuticals’ investigational non-nucleoside reverse transcriptase inhibitor (NNRTI) TMC278 (rilpivirine hydrochloride, 25 mg). As part of its First Quarter 2010 earnings call, Johnson & Johnson, which owns Tibotec Pharmaceuticals, announced today that the two pivotal Phase III studies evaluating TMC278 as a treatment for HIV in treatment-naïve patients met the primary efficacy objective of non-inferiority as compared to efavirenz based on the proportion of patients achieving HIV RNA levels of less than 50 copies/mL at 48 weeks. Johnson & Johnson also announced that full study results will be presented at a scientific meeting later this year, and that the submission of TMC278 for regulatory review is on track for the third quarter of this year.