Would you use new DOAC loading dose or start with maintenance dosing for a stable patient on existing DOAC who needs to switch brand due to insurance/formulary reasons?

For some drugs, you need to do a loading dose to get the drugs to therapeutic levels. However, with DOACs, a loading dose is used at the time of VTE diagnosis and therapy initiation to jump start the anticoagulant effect when the clot burden is the highest. Thus, if you are switching from another fu...