Phase III Clinical Study of DU-176b (Venous Thromboembolism): Japanese, Multicenter, Open-label Study of DU-176b in Patients With Severe Renal Impairment (SRI) Undergoing Orthopedic Surgery of the Lower Limbs

To assess the safety and pharmacokinetics of DU-176b administered to patients with severe renal impairment undergoing orthopedic surgery of the lower limbs, compared with DU-176b administered to patients with mild renal impairment (MiRI) undergoing orthopedic surgery of the lower limbs. For reference, the safety of DU-176b in patients with SRI undergoing orthopedic surgery of the lower limbs will be compared with that of fondaparinux.