I'm not trying to attack nor defend Gandy, just want to set things straight; In the accompanying editorial in Lancet Neurology you've mentioned, Gandy did write one paragraph on Dimebon, but nowhere in that paper he called it "a gamechanger in AD" or something of that sort. Only thing he referred to as "something of a breakthrough" was the PiB-Pet work. Here is the relevant part from the paper:
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