Study to Evaluate the Safety Tolerability and Acceptability of Long Acting Injections of the Human Immunodeficiency Virus (HIV) Integrase Inhibitor, GSK1265744, in HIV Uninfected Men (ECLAIR)

This study is a Phase IIa, randomized, multi-site, two-arm, double-blinded study to evaluate the safety, tolerability, and acceptability of GSK1265744 long acting injectable formulation (744 LA) in adult male subjects. To evaluate the safety and tolerability of the injectable agent, 744 LA (800 milligrams (mg) dose administered at three time points at 12 week intervals) through Week 41 in HIV-uninfected men. Eligible participants will be randomized in a 5:1 ratio to receive 744 LA or matching placebo. Participants will receive daily oral 744 (30 mg tablets) or matching placebo for 4 weeks during the Oral Phase of the study, followed by a one week washout period. Following safety lab assessments from the Oral Phase, participants will enter the Injection Phase and receive Intramuscular (IM) injections of 744 LA or placebo at three time points at 12 week intervals. IM injections will consist of 800 mg of 744 or a matching control