Similarly, others have developed a G2019S-selective kinase inhibitor EB-42168, which achieved 90% pSer935-LRRK2 inhibition in blood of homozygous G2019S patients, 36% in heterozygous G2019S carriers, and only 5% in healthy control’s blood [196], demonstrating the potential use of precision medicine specifically for G2019S PD patients. This evidence concerns the gene LRRK2 and Parkinson disease.