Efficacy and Safety of Biphasic Insulin Aspart 30 in Type 1 or 2 Diabetes

Inclusion Criteria: * Type 1 or 2 diabetes for at least 3 months * Stabilised on current treatment with premixed human insulin for at least 4 weeks * Body mass index (BMI) between 18-40 kg/m2 * HbA1c below 13.0% * Able and willing to perform self-blood glucose monitoring Exclusion Criteria: * The receipt of any investigational drug within the last three months prior to this trial * Has a history of drug abuse or alcohol dependence within the last 5 years * Active proliferative retinopathy requiring laser or surgical intervention within the last year * Recurrent major hypoglycaemia as judged by the Investigator * Known or suspected allergy to trial product or related product