CDER Staff:
Today, FDA announced it will require the removal of certain prescribing and use restrictions for the diabetes drug, Avandia (rosiglitazone), to reflect new safety information regarding Avandia’s cardiovascular risk. The changes include modifications to the drug label about cardiovascular safety, changes to the Risk Evaluation and Mitigation Strategy (REMS), and the removal of a requirement for the drug’s maker to do another study of the drug.
In 2007, concerns had been raised about an elevated risk of heart attacks and strokes, and related deaths associated with Avandia. FDA issued safety recommendations to the health care community and initiated an intensive look into the cardiovascular risk of the drug. In 2010, GlaxoSmithKline (GSK) released a long-term study called the Rosiglitazone Evaluated for Cardiovascular Outcomes and Regulation of Glycemia in Diabetes (RECORD) trial, which evaluated whether patients are at greater risk of heart attack or death when taking Avandia, as compared to standard-of-care diabetes drugs. As a result of this study, GSK said it could find no potential elevated risk.
Questions continued to be raised both internally and externally about Avandia’s safety and the RECORD study. In light of the inconclusive scientific evidence, I made the decision that Avandia could remain on the market but with restricted access, until we had further data about the cardiovascular risk of this drug. An independent analysis, or readjudication, of the RECORD trial was conducted by the Duke Clinical Research Institute (DCRI) and confirmed the original findings by GSK, lending stronger evidence about the safety profile for Avandia. In June of this year, we convened two advisory committee panels to discuss the results of the DCRI review of the RECORD trial. The majority of the advisory committee panelists concurred with the findings and voted in favor of easing the 2010 restrictions on the drug. Our action today is consistent with the advice of those expert panelists.
I believe the Center’s work on Avandia is noteworthy for at least three reasons, as it:
1) Exemplifies our lifecycle approach to drug regulation, and our ongoing work to monitor the safety and effectiveness of medications once they are on the market, and make necessary adjustments when the risk/benefit balance of a drug changes over time
2) Underscores the complexity of our decision-making processes, and how as regulators, we must make decisions about regulated products -- even in the face of uncertainty or in the absence of complete information about a drug’s safety or effectiveness
3) Reinforces the importance of our commitment to Equal Voice and our efforts to encourage viewpoints from our expert disciplines across CDER, and even when there is disagreement, to respect the views of each discipline and strive to make the best decisions possible based on the scientific evidence available and in the best interest of patients
A wide range of scientific disciplines and many people from a number of CDER offices have been involved in our efforts to characterize and communicate to the public the cardiovascular safety profile for Avandia. These offices include the Office of Surveillance and Epidemiology, Office of New Drugs, Office of Executive Programs’ Division of Advisory Committee and Consultant Management, Office of Communications, and statisticians in the Office of Translational Sciences. I greatly appreciate the work and professionalism of so many of our staff throughout this process and believe it can be instructive going forward in how we approach and attempt to resolve very difficult drug safety issues.
For more information about the changes announced today, visit FDA requires removal of certain restrictions on the diabetes drug AvandiaJanet Woodcock
