PT - JOURNAL ARTICLE AU - Cunningham, Muriel ED - Crowther, Mark TI - ANNEXA-A DP - 2015 Sep 10 TA - MD Conference Express PG - 9--9 VI - 15 IP - 21 4099 - http://mdc.sagepub.com/content/15/21/9.1.short 4100 - http://mdc.sagepub.com/content/15/21/9.1.full AB - In part 2 of the phase 3 ANNEXA-A trial, older subjects receiving a steady dose of apixaban were randomized to receive a bolus plus an infusion of andexanet alfa or placebo in a 3:1 ratio. Andexanet significantly reduced anti-fXa activity, decreased free apixaban, and normalized anticoagulation parameters. It was well tolerated in all study participants.