The statistics supplied by the ehealthme site are almost useless. They don't go into cause of death, which is the key to the matter. We know that there have been roughly 360 patient deaths attributed to PML in people taking Tysabri. The 665 number includes these, but apparently about 300 more deaths from who knows what reason? No indication of what these "side effects" might be is given whatsoever. Certainly there may be infections, cancers, etc., but it's impossible to know if these "side effects" are actually attributable to Tysabri or to the vicissitudes of human life.
Not sure what the mortality rate would be given a random sample of 90,000 people followed for 5+ years, but I am sure the deaths would number In the dozens, if not hundreds. One must never forget that life is terminal disease.
A little critical thinking goes along way, folks…
I'm no fan of big Pharma, but the fact is that Tysabri has dramatically increased the quality of life for a majority of patients taking it. Not that the drug is without its problems, as the PML threat is quite troubling. But careful patient monitoring for JC virus status seems to be helping the situation, and the most recent studies do seem to indicate that the drug may even limit disease progression.
We definitely need better therapies, but blindly using numbers like the ones provided by ehealthme does a disservice to both sides of the argument. Without specifics, the numbers are meaningless…
Here's a very nice presentation on the PML risk associated with T.
http://www.slideshare.net/gavingiovanno ... -june-2013