For which subset(s) of APS patients do you recommend an INR of 3 or higher?  

According to the EULAR 2019 recommendations for managing APL (Tektonidou et al., PMID 31092409) and according to the 2011 APL Task Force recommendations: For secondary venous thrombosis prophylaxis, it is recommended to keep INR between 2-3. Patients who fail warfarin therapy at INR 2-3 may benefit ...