XENical in the prevention of diabetes in obese subjects (XENDOS) study: a randomized study of orlistat as an adjunct to lifestyle changes for the prevention of type 2 diabetes in obese patients.

Objective: It is well established that the risk of developing type 2 diabetes is closely linked to the presence and duration of overweight and obesity. A reduction in the incidence of type 2 diabetes with lifestyle changes has previously been demonstrated. We hypothesized that adding a weight-reducing agent to lifestyle changes may lead to an even greater decrease in body weight, and thus the incidence of type 2 diabetes, in obese patients.

Effect of orlistat added to diet (30% of calories from fat) on plasma lipids, glucose, and insulin in obese patients with hypercholesterolemia.

The objective of this study was to quantify the effectiveness of orlistat plus a reduced calorie diet on decreasing cardiovascular disease risk in obese individuals with elevated low-density lipoprotein (LDL) cholesterol concentrations, and to compare the beneficial effects in patients with hypercholesterolemia only (type IIA) with those in subjects with combined dyslipidemia (type IIB). Hypercholesterolemic patients treated with orlistat lost more weight (mean +/- SEM 9.9 +/- 0.