Could it be they know the Pfizer buyout is coming and it will mess things up if they do a big launch now?
AZ knows the Byd pen will not make a difference in the sales trajectory of Byd. They do not want Pfizer or anyone else to know that. Selling the company with Byd pen "potential" will garner far more than if they if they take the blanket off that ugly baby.
Actually never thought if this, but could be spot on. I've seen the pen, help it in my hand and tapped away. It is a joke. But, the reality of having this pen in the market and the promise of having it in the market are two different things.