GILD—GS-7977 gets straight A's for efficacy, tolerability, and safety but now the strength of the drug’s resistance profile when used orally in combination with ribavirin is in question.
It’s a little early to say that the resistance profile per se is the main culprit in the data reported today. This was asked and answered on the CC.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”