OBJECTIVE: To compare lispro insulin and regular insulin in the glycemic control of patients with liver cirrhosis and type 2 diabetes subjects. METHODS: 108 patients with liver cirrhosis and type 2 diabetes were randomly treated with regular insulin or lispro. After 122 weeks a cross-over was carried out and patients followed-up for 122 weeks. Then, all patients received a standard breakfast of 145 kcal following 12 U.I. of regular insulin or lispro, and C-peptide and insulin serum levels were determined over 300 minutes.