A Trial Investigating the Pharmacokinetics and Pharmacodynamics of rFVIIa in Patients With Haemophilia A or B With or Without Inhibitors

Inclusion Criteria: * Informed consent obtained before any trial-related activities. Trial-related activities are any procedures that are carried out as part of the trial, including activities to determine suitability for the trial * Male patients with confirmed diagnosis of severe congenital haemophilia A or B (higher than 1% FVIII or FIX) with or without inhibitors to coagulation factors VIII or IX, based on medical records Exclusion Criteria: * Congenital or acquired coagulation disorder other than congenital haemophilia A or B * Any clinical signs or known history of arterial thrombotic events or previous deep vein thrombosis or pulmonary embolism (as defined by available medical records) * Use of any anticoagulant (e.g. un-fractionated or low molecular weight heparin, vitamin-K antagonists, direct thrombin inhibitors or factor Xa inhibitors) * Bleeding prophylactic treatment or FVIII or FIX immune tolerance induction (ITI) treatment during the trial period