Dr. Bosch stated that before you look at the data ['looking' happens after data lock], you have to have the SAP etched in stone in order to preserve the integrity of the analysis. Do you understand? See his presentation at 38:30. They will not go to data lock until the SAP is finalized.
Linda has said the same:
Answer (LP): "Definitely 'yes' we won't unblind until the Statistical Analysis Plan has been approved by all regulators.