A new tau PET radiotracer, 18F-SNFT-1, has been found to be more effective than existing tau PET radiotracers in identifying Alzheimer’s disease in its earliest stages, according to research. In a head-to-head comparison, 18F-SNFT-1 possessed preferable brain pharmacokinetics and demonstrated higher affinity and selectivity for Alzheimer’s tau lesions compared to clinically used second-generation tau PET tracers.