Endpoints being to score as good or better than any of the 5 approved AD drugs on the market? Even if scores weren't quite as good as, say, donepezil, if the side effect profile was much better and it helped AD patients with sleep and mood, might that be enough? Memantine and the other similar drugs, weren't those approved after donepezil was approved? Didn't they have worse scores than donepezil? After all, to this day, donepezil is still the SOC. But those other drugs got approved anyway.