Harlan Krumholz

When I wrote about the Trial to Assess Chelation Therapy (TACT) trial last week, little did I suspect that I would be revisiting the topic again so soon. For those of you not familiar with TACT, it was a trial designed to test a favorite quack treatment for cardiovascular disease, chelation therapy. It is, as I have described many times in the past, an incredibly implausible therapy based on a hugely simplistic concept that because calcium accumulates in atherosclerotic lesions, then using chelation therapy could remove the calcium and reduce the lesions. Chelation therapy is a favorite…