The IV formulation of Orencia was approved by the FDA in 2005 and has annualized sales of about $900M. The new sub-Q product has weekly dosing rather than the monthly dosing of the IV formulation. (The FDA label for the sub-Q product recommends an initial loading dose with the IV formulation.)
The sub-Q product should allow Orencia to widen the lead it already on Rituxan and Actemra, the other two drugs often prescribed in the post-TNFa (i.e. third-line) RA setting (#msg-65077219).
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