A few previous studies have compared flortaucipir binding patterns with the patterns observed for other novel tau-PET radioligands in vivo in the same patients, including THK5351,411  18F-RO948412 and florquinitau (MK6240).413 Compared with THK5351, flortaucipir showed correlated, but higher, binding in Alzheimer’s disease patients and lower binding in FTD. This evidence concerns the gene MAPT and Alzheimer disease.