| Completed | 3 | 173 | US | Metformin, Vitamin E, Nature Made, Matching placebo | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | Fatty Liver | 09/09 | 02/10 | | |
| Terminated | 3 | 11 | Europe | Metformin, Glucophage, placebo tablet | Assistance Publique - Hôpitaux de Paris, ANRS, Emerging Infectious Diseases | Hepatocellular Carcinoma, Hepatitis C, Chronic, Cirrhosis | 04/16 | 04/16 | | |