Mayo Clinic researchers advocate for comprehensive TPMT genotyping across ancestries

Mayo Clinic researchers found that a gene variant, the TPMT∗8 allele, is associated with reduced metabolism of the thiopurine class of drugs. TPMT∗8 is relatively common in individuals of African or African American descent. A novel study in The Journal of Molecular Diagnostics, published by Elsevier, details the researchers’ goal to provide pharmacogenomic testing that can be used clinically to predict drug response that is beneficial to all patients, regardless of their ancestral background.