Effect of PA-824 and of PA-824 Plus Moxifloxacin on the QTc Interval in Healthy Volunteers

Moxifloxacin will be given orally to the following treatment groups, in combination with either PA-824 or PA-824 placebo: Treatment D: 400 mg + PA-824 placebo; Treatment E: 400 mg + PA-824 400 mg. Subjects will cross-over to the next Treatment Group after a 6-day washout period.

PA-824 will be given orally to the following treatment groups, together with either moxifloxacin or moxifloxacin placebo: Treatment B: 400 mg + moxifloxacin placebo; Treatment C: 1000 mg + moxifloxacin placebo; Treatment E: 400 mg + moxifloxacin 400 mg. Subjects will cross-over to the next Treatment Group after a 6-day washout period.

Placebo tablets to match Moxifloxacin or PA-824 will be given orally, in combination with either moxifloxacin or PA-824: Treatment A: PA-824 placebo + moxifloxacin placebo; Treatment B: PA-824 400 mg + moxifloxacin placebo; Treatment C: PA-824 1000 mg + moxifloxacin placebo Treatment D: PA-824 placebo + moxafloxacin 400 mg. Subjects will cross-over to the next Treatment Group after a 6-day washout period.