A new study presented at the 2019 ACR/ARP annualmeeting, showed that African American SLE patients with venous thrombosis are 66%less likely to have a significant aPL profile compared to Caucasian patients.47 Therefore, negative aPL in African American SLE patients does not seem toexclude the risk of thrombosis. This evidence concerns the gene FASLG and Venous thrombosis.