I used to feel as you do, but frankly over the years I've learned that companies do little to support the day to day price of their stocks, they work for long term growth and do and say what they need to in support of doing things properly and achieving long term growth.
To rush results from a trial in order to get information out quicker to investor's isn't in their best interests, getting the information out that's correct and which can easily be understood is. I'm not suggesting they're dogging it, just doing it correctly and taking whatever time that requires.
Gary