In some embodiments, there are provided methods and compositions for treating, preventing, or delaying the onset of type 2 diabetes and related disorders. The methods comprise administering a sustained release composition comprising a peroxisome proliferator-activated receptor (PPAR) agonist subcutaneously in a localized area of the subject. Slow release of the PPAR agonist in situ enhances the metabolic activity of subcutaneous adipose tissue, resulting in an increased ability of the tissue to clear excess glucose and lipid from the blood stream, while minimizing adverse side-effects of the agonist.
