[Birgitta-A]

Hi kgtuck,
As far as I understand they only take "new patients" into studies to be able to examine the effects of the drug.
http://www.clinicaltrials.gov/ct2/sh...cr=Open&rank=1

Here are results from a study:
https://ash.confex.com/ash/2012/webp...aper51734.html

Kind regards
Birgitta-A