In 2007, when the results were published from the COURAGE trial, all the experts agreed that this study would fundamentally change the way cardiologists managed patients with stable coronary artery disease (CAD).*
*”Stable” CAD simply means that a patient with CAD is not suffering from one of the acute coronary syndromes – ACS, an acute heart attack or unstable angina. At any given time, the large majority of patients with CAD are in a stable condition.
But a new study tells us that hasn’t happened. The COURAGE trial has barely budged the way cardiologists treat patients with stable CAD.
Lots of people want to know why. As usual, DrRich is here to help.
The COURAGE trial compared the use of stents vs. drug therapy in patients with stable CAD. Over twenty-two hundred patients were randomized to receive either optimal drug therapy, or optimal drug therapy plus the insertion of stents. Patients were then followed for up to 7 years. Much to the surprise (and consternation) of the world’s cardiologists, there was no significant difference in the incidence of subsequent heart attack or death between the two groups. The addition of stents to optimal drug therapy made no difference in outcomes.
This, decidedly, was a result which was at variance with the Standard Operating Procedure of your average American cardiologist, whose scholarly analysis of the proper treatment of CAD has always distilled down to: “Blockage? Stent!”
But after spending some time trying unsuccessfully to explain away these results, even cardiologists finally had to admit that the COURAGE trial was legitimate, and that it was a game changer. (And to drive the point home, the results of COURAGE have since been reproduced in the BARI-2D trial.) Like it or not, drug therapy ought to be the default treatment for patients with stable CAD, and stents should be used only when drug therapy fails to adequately control symptoms.
When the COURAGE results were initially published they made a huge splash among not only cardiologists, but also the public in general. So cardiologists did not have the luxury of hiding behind (as doctors so often do when a study comes out the “wrong” way) the usual, relative obscurity of most clinical trials. Given the widespread publicity the study generated, it seemed inconceivable that the cardiology community could ignore these results and get away with it.
But a new study, published just last month in JAMA, reveals that ignore COURAGE they have. Read more »
*This blog post was originally published at The Covert Rationing Blog*