In one aspect, the invention provides compositionsand methods for preventing,
reducing, and/or treating a disease, disorder or condition associated
with fibrin-induced activation of the complement system and the associated activation ofthecoagulation
and/or contact systems comprising administering a therapeutic amount of a MASP-2 inhibitory antibody to a subject in need thereof. In some embodiments, the methods of the invention provide anticoagulation and/or antithrombosis and/or antithrombogenesis without affecting hemostasis. In one embodimenl of this aspect ofthe invention, the compositions and methods are useful for treating a subject is suffering from, or at risk of developing, a disease, disorder or condition associated with complement-related inflammation, excessive coagulation or contact system activation initiated by fibrin or activated platelets.