4.4.0.0 Pharmacologic Therapy
4.4.1.0 Overview
Treatment of GDM with lifestyle and insulin has been demonstrated to improve perinatal outcomes in two large randomized studies as summarized in a U.S. Preventive Services Task Force review (40). Insulin is the first-line agent recommended for treatment of GDM in the U.S. While individual RCTs support limited efficacy of metformin (41,42) and glyburide (43) in reducing glucose levels for the treatment of GDM, these agents are not recommended as first-line treatment for GDM because they are known to cross the placenta and data on safety for offspring is lacking (22). Furthermore, in two RCTs, glyburide and metformin failed to provide adequate glycemic control in 23% and 25– 28%, respectively (44,45), of women with GDM.