So bottom line, your WORST CASE assumption 4 months/120 days per patient per centre with a limit of 3 patients per centre gives currently 238 patients enrolled. And 322 for your second worst simulation of 3 months/90 days.
There may be a slight misunderstanding of what I wrote in my “Implied results” paragraph.
I wrote:
Implied results: 1 - Enrollment will be complete in the time frame of July to December 2015 based on the 3 assumptions above and August 2016 based on historical data.
I then addressed the more important issue of the first look-in with the following two statements:
2 - If the first look-in is based on ~150 events it will occur around August-November 2015 3 - If the first look-in is based on ~200 events it will occur around September – December 2015
But to address your question regarding current enrollment projections, the spreadsheet projects for the end of January enrollment numbers of: For the 1 patient every 4 months I am projecting 206 vs your 238 For the 1 patient every 3 months I am projecting 293 vs your 322
It appears that we are within roughly 10% of each other.
Side note: I chose not to use formulas and macros to produce these calculations. Mine resembles a fix slide rule…
How many remember those…??? And how many want too…??? I got the answer to that one: ZERO