I e-mailed Dr. Mercer and asked if there was any known reason...

I e-mailed Dr. Mercer and asked if there was any known reason why trial results would not be known at the end of June as indicated.

The important points of his response are these:
The trial is fully recruited;
Informal feedback indicates it is proceeding well;
Professor Harding recently committed to reporting at the end of June;
There is the possibility that this timeline may be delayed due to Professor Harding's very busy schedule and travel.

All pretty positive from my perspective!

Rev