I’m not promoting or advocating Tysabri or, for that matter, any other treatment. And I don’t mean to trivialize risk—it’s real and not to be taken lightly. (In fact the risk for PML increases the longer you take the drug. After two years the risk doubles, although even then that still means you have a 99.5% chance of not developing the disease.) I’m just trying to put it into perspective. Multiple sclerosis can be a challenging disease and taming it effectively, for better or for worse, often means taking calculated risks. Many current and upcoming MS treatments, not to mention clinical trials, certainly carry a level of danger—some more than others. But that needs to be weighed carefully against the potential upside, which can be significant. Also when it comes to risk, consider how your disease may progress if you don’t take that medication or don’t do that treatment. There’s risk there, too. Of course, heck, tomorrow you could always get hit by a bus DRIVEN BY A GUY WHO TYPES IN ALL CAPS and then you’ll never have to worry about making an informed decision again. But what are the odds?
Originally posted March 10, 2011.