Yes, statistics in BMRN press releases is one thing, detailed description of what the patients go through is something else( and injection side reaction is far from the only serious trouble the have to face with dris..).
D1.FDA decides on Dris before Jan 22: 0.(They want to see how AP for Etep.. goes, that is the only reason for the delay ).
D2. FDA goes negative on Dris.. between Jan22 and Feb 26: 0.8
D3. In case D2 does materialize, FDA approves Etepl: 0.95.
D4. In case Dris. somehow gets the nod from FDA, before Feb 26, FDA approves Etepl. anyway: 0.80