All 30 diabetes drugs reviewed for this series were approved by the U.S. Food and Drug Administration from 2004-2013 based on surrogate measures of elevated blood sugar such as HbA1c, which can indicate risk for type 2 diabetes complications, but not always. Here are a few key points of what we learned in the course of our investigation. Read the full analysis, an examination of adverse events, or more about how we did it.
1. Diabetes drugs improve lab tests, but not much more, particularly in pre-diabetics.