CBER Accepts Portola Anticoagulation Reversal BLA

CBER has accepted for priority review a Portola Pharmaceuticals BLA for andexanet alfa, indicated for reversing anticoagulant activity of both direct and indirect Factor Xa inhibitors. The user fee review target date is 8/17. Portola says the therapy should be used to reverse anticoagulation, such as in life-threatening or uncontrolled bleeding or for emergency surgery and urgent procedures.

The submission is based on data from the company’s ANNEXA (Andexanet Alfa a Novel Antidote to the Anticoagulant Effects of FXa Inhibitors) studies. It also included limited efficacy and safety data from initial patients enrolled in anongoing Phase 4 ANNEXA-4 study, an open-label confirmatory study in patients receiving apixaban, rivaroxaban, edoxaban and who present to the hospital with an acute major bleed.

Read more