| Completed | 1 | 69 | US | Hydrochlorothiazide (HCTZ), HCTZ, Aliskiren 150 mg (ALI 150), Tekturna, Spironolactone (SPL 25), Aldactone, Aliskiren 300 mg (ALI 300), Spironolactone 50 mg (SPL 50) | Vanderbilt University Medical Center | Metabolic Diseases, Diabetes Mellitus, Endocrine System Diseases, Glucose Metabolism Disorders | 07/12 | 09/13 | | |