Patient years should increase by 500 to 600 per quarter (3 months),  or about 166 to 200 per month. Remember, first patients in are now done. So as more patients leave trial the rate of patient year accumulation will decline if the rate of new patient enrollment doesn't keep up. 

Toniv, don't lose too much sleep over the 9.5% vs. 8% figures. Every trial population is somewhat distinct. Comparisons will put you in the ballpark but not be exact. We can overanalyze numbers all we want, but in reality there are too many unknowns at this point to make any solid interpretations.

BearDownAZ