You have to be your own man and sink or swim on your own decisions.
Good probability on this one though. After a certain point, you might consider using 25% of your shares for trading in and out while holding long the rest.
I look at the management team and think that they would not be there if it was not a slam dunk.
Look at the parts of the world in which there is no Crohns. This is a good ten year hold when considering the synergies with other autoimmune conditions.
To be honest all longs should give you great prediction/advice.
I m not long but can tell that without a single press release from PR other than event announcement, this stock will be 2 bucks very shortly