| Completed | N/A | 70 | Japan | Pioglitazone, CAS number: 111025-46-8, ATC code: A10BG03, Glimepiride, CAS number: 93479-97-1, ATC code: A10BB12 | Kurume University | Impaired Glucose Tolerance, Type 2 Diabetes Mellitus, Atherosclerosis | 04/09 | 04/12 | | |
| Completed | N/A | 44 | US | pioglitazone, Actos (pioglitazone) | Emory University | Ketosis Prone Diabetes, Diabetic Ketoacidosis, Severe Hyperglycemia | 08/10 | 08/10 | | |