This is from nearly 1 month ago. Do you have more information now?
I believe it was only a couple of days later that I replied with my attempt to obtain further information from the Calgary MS Centre.
I called the clinic and was able to verify the nurse clinician who supposedly made the comments did indeed work there. I asked for her email address which was given to me.
I emailed the nurse and explained that I had been advised by a friend that comments of Tysabri safety concerns at the Calgary MS Clinic had been made by her at a recent gathering of MS professionals. I asked if she could elaborate any on this without breaking any kind of confidentiality rules she may have had.
Needless to say, because this person didn't know me from Adam, the reply I got could not have been any more generic and standard. My question was not answered in any way and I was told that Tysabri had been in trials and that Health Canada would be looking at possibly approving it in the future! That's it. End of reply.
I followed up with my contact and was told that it probably wasn't a good idea to go back directly to this person in the manner that I did. Often, this information is shared between individuals and not meant for public release. Let's say that I learned my lesson in this particular situation and have not pursued it further.
I have no idea if what happened in Calgary had any connection as to what happened to Tysabri in the long run.