Single Ascending Dose of GAP-134 as a 24-hour IV Infusion in Healthy Japanese Males

Inclusion Criteria * Healthy Japanese men age 20-45. * BMI within 17.6 to 26.4 kg/m2 and body weight greater than or equal to 45 kg. * Nonsmoker or smoker of fewer than 10 cigarettes per day as determined by history. Must be able to abstain from smoking within 48 hours before study day 1 until the end of the inpatient confinement period. Exclusion Criteria * Any significant cardiovascular, hepatic, renal, respiratory, gastrointestinal, endocrine, immunologic, dermatologic, hematologic, neurologic, or psychiatric disease. * Any surgical or medical condition that may interfere with the absorption, distribution, metabolism, or excretion of the test article (e.g., resection of liver, kidney, gallbladder, or gastrointestinal tract). * Acute disease state. * Any history of clinically important cardiac arrhythmias. Family history of long QT syndrome, Torsades de Pointes or unexpected cardiac death. * Any clinically important deviation from normal limits in physical examination, vital signs, 12-lead electrocardiograms (ECGs), or clinical laboratory test results. Creatinine levels must be less than or equal to the upper limit of normal at screening. * Demonstration of a positive orthostatic test at screening. The definition of a positive test is a greater than or equal to 20 mm Hg decrease in systolic blood pressure, greater than or equal to 10 mm Hg decrease in diastolic blood pressure, or a greater than or equal to 30 bpm increase in pulse rate, after standing for 3 minutes. * Positive serologic findings for human immunodeficiency virus (HIV) antigen and antibodies, hepatitis B surface antigen (HbsAg), and/or hepatitis C virus (HCV) antibodies. * Positive findings of urine drug screen. * History of any clinically important drug allergy or adverse drug reaction (e.g., relapsing dermatitis, drug hypersensitivity, drug allergy, hypersensitivity to ingredient in the test articles or angioedemas) * Use of any investigational drug within 90 days before study day 1 or prescription drug within 30 days before study day 1. * Consumption of any caffeine-containing products. * Consumption of grapefruit or grapefruit-containing products within 72 hours before study day 1 until the end of the inpatient confinement period. * Use of any over-the-counter drugs, including herbal supplements (except for the occasional use of vitamins less than or equal to 100% of the recommended daily allowance), within 14 days before study day 1.