Excuse my naivety, but I don't understand why IMU can't tell...

Excuse my naivety, but I don't understand why IMU can't tell their shareholders when they plan to do the next data cut. I get that it is expensive and time consuming, but surely a well-planned trial should come with specific dates when updates should be taken. We have a lot of trials that are scheduled, and they have shown us the timing of that. Why not include when there will be interim results supplied to the market for each trial. Take out the wink wink, etc and manage it all to a known schedule. I admit, I'm just an engineer and that this might be an engineers solution, but it would take a lot of the frustration and guess work away.