Liraglutide for the Treatment of Obesity: Analyzing Published Reviews

Background Several drugs have been currently approved for the treatment of obesity. The pharmacokinetic of liraglutide, as well as the treatment of type 2 diabetes mellitus, have been widely described. Objective To analyze the published systematic reviews on the use of for the treatment of obesity. Methods Systematic reviews were found out through MEDLINE searches, through EBSCO host and the Cochrane Library based on the following terms: liraglutide as major term and using the following Medical Subject Headings (MesH) terms: obesity, overweight, loss. A total of 3 systematic reviews were finally included to be analyzed. Results From the three systematic reviews selected, only two included the randomized clinical trials, while the third study reviewed both randomized and non-randomized clinical trials. Only one review performed statistical tests of heterogeneity and a meta-analysis, combining the results of individual studies. Another review showed the results of individual studies with odds ratio and confidence interval, but a second one just showed the means and confidence intervals. In all studies, weight loss was registered in persons treated with in a dose dependent form, reaching a plateau at 3.0 mg dose, which was reached just in men. Most usual adverse events were gastrointestinal. Conclusion More powerful and prospective studies are needed to assess all aspects related to in the overweight and obesity treatment.