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is indicated for the treatment of adult and pediatric patients with hepatic veno-occlusive disease (VOD), also known as sinusoidal obstruction syndrome (SOS), with renal or pulmonary dysfunction following hematopoietic stem-cell transplantation (HSCT). DEFITELIO is indicated for the treatment of adult and pediatric patients with hepatic veno-occlusive disease (VOD), also known as sinusoidal obstruction syndrome (SOS), with renal or pulmonary dysfunction following hematopoietic stem-cell transplantation (HSCT). ( 1 )

The use of DEFITELIO is contraindicated in the following conditions: • Concomitant administration with systemic anticoagulant or fibrinolytic therapy [see Warnings and Precautions (5.1) ] • Known hypersensitivity to DEFITELIO or to any of its excipients [see Warnings and Precautions (5.2) ] • Concomitant administration with systemic anticoagulant or fibrinolytic therapy. ( 4 ) • Known hypersensitivity to DEFITELIO or to any of its excipients. ( 4 )

• Hemorrhage: Monitor patients for bleeding. Withhold or discontinue DEFITELIO if significant bleeding occurs. ( 2.3 , 5.1 ) • Hypersensitivity Reactions: If severe or life threatening allergic reaction occurs, discontinue DEFITELIO, treat according to standard of care, and monitor until signs and symptoms resolve. ( 2.3 , 5.2 ) 5.1 Hemorrhage DEFITELIO increased the activity of fibrinolytic enzymes in vitro, and it may increase the risk of bleeding in patients with VOD after hematopoietic stem-cell transplantation (HSCT). Do not initiate DEFITELIO in patients with active bleeding. Monitor patients for signs of bleeding. If patients on DEFITELIO develop bleeding, discontinue DEFITELIO, treat the underlying cause, and provide supportive care until the bleeding has stopped [see Dosage and Administration (2.3) ] . Concomitant use of DEFITELIO and a systemic anticoagulant or fibrinolytic therapy (not including use for routine maintenance or reopening of central venous lines) may increase the risk of bleeding. Discontinue anticoagulants and fibrinolytic agents prior to DEFITELIO treatment, and consider delaying the start of DEFITELIO administration until the effects of the anticoagulant have abated [see Contraindications (4) ] . 5.2 Hypersensitivity Reactions Hypersensitivity reactions have occurred in less than 2% of patients treated with DEFITELIO. These reactions include rash, urticaria and angioedema. One case of an anaphylactic reaction was reported in a patient who had …

8.1 Pregnancy Risk Summary There are no available data on DEFITELIO use in pregnant women. When administered to pregnant rabbits during the period of organogenesis at doses that were comparable to the recommended human dose based on body surface area, defibrotide sodium decreased the number of implantations and viable fetuses. Advise pregnant women of the potential risk of miscarriage. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risks of major birth defects and miscarriage in clinically recognized pregnancies are 2-4% and 15-20%, respectively. Data Animal Data …