Exubera’s launch was somewhat disjointed. Originally scheduled for mid July of 2006, the official launch was changed to September of 2006.
Looking at the data (Graph Below – click on graph for a bigger picture) it appears that the fate of Exubera was sealed by about the official launch date, September of 2006. Weekly new script’s growth rate fell below about 15% and stayed there. By May of 2007, it was reported by Hambrecht analyst Andrew Foreman, that current users of Exhubera were 5,000. I would estimate that the patient retention rate was around 35%. A majority of patients tried Exubera and quit using it.