XBiotech shares tank after PhIII data get a roasting
The last time we checked in with Austin-based XBiotech $XBIT, the company was trying to explain how it had screwed up a Phase III study of its lead drug Xilonix, confusing data on about 25% of its patients.
Over the weekend the company put out a batch of that data, and included this interesting note:
“Among responders (in both treatment and placebo arms), clinical response was associated with a 2.7-fold increase in overall survival (11.5 versus 4.2 months in responders vs. non-responders, respectively). Overall survival was not compared between treatment arms because after 8 weeks, all patients were eligible to receive study drug.”
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