- Subject has no clinically significant medical conditions (other than renal impairment and associated diseases, such as hypertension, diabetes, and dyslipidemia, for subjects in Group A) as determined by medical history, physical examination, 12-lead ECG, clinical laboratory results (hematology, serum chemistry, and urinalysis [if able to pass urine]), and serology results (hepatitis B surface antigen, hepatitis C virus antibody, and human immunodeficiency virus types 1 and 2 antibody). Subjects with positive results for hepatitis C virus but who have normal liver enzymes will not be excluded. Any subjects who have impaired hepatic function that will potentially affect drug metabolism should be excluded.