Important Safety Information for Privigen
WARNING: THROMBOSIS, RENAL DYSFUNCTION AND ACUTE RENAL FAILURE
- Thrombosis may occur with immune globulin products, including Privigen. Risk factors may include advanced age, prolonged immobilization, hypercoagulable conditions, history of venous or arterial thrombosis, use of estrogens, indwelling vascular catheters, hyperviscosity, and cardiovascular risk factors.
- Renal dysfunction, acute renal failure, osmotic nephrosis, and death may occur with immune globulin intravenous (IGIV) products in predisposed patients. Renal dysfunction and acute renal failure occur more commonly in patients receiving IGIV products that contain sucrose. Privigen does not contain sucrose.
- For patients at risk of thrombosis, renal dysfunction or renal failure, administer Privigen at the minimum dose and infusion rate practicable. Ensure adequate hydration in patients before administration. Monitor for signs and symptoms of thrombosis and assess blood viscosity in patients at risk for hyperviscosity.
See full prescribing information for complete boxed warning.
Privigen is contraindicated in patients with history of anaphylactic or severe systemic reaction to human immune globulin, in patients with hyperprolinemia, and in IgA-deficient patients with antibodies to IgA and a history of hypersensitivity.
Monitor renal function in patients at risk of developing renal failure. In patients 65 years or older, or in any patient at risk of developing renal insufficiency, do not exceed recommended dose and infuse at the minimum rate practicable.
Hyperproteinemia, hyperviscosity, or hyponatremia may occur with Privigen. Aseptic meningitis syndrome (AMS) may occur—especially with high doses or rapid infusion.
Hemolysis, either intravascular or due to enhanced red blood cell sequestration, may occur. Risk factors include non-O blood group and high doses. Closely monitor patients for hemolysis and hemolytic anemia.
During and shortly following Privigen infusion, elevations of blood pressure (including cases of hypertensive urgency) have been observed.
Monitor patients for pulmonary adverse reactions (transfusion-related acute lung injury [TRALI]).
Privigen is made from human blood and may contain infectious agents.
In clinical studies of patients with PI, the most common adverse reactions to Privigen, observed in >5% of subjects, were headache, fatigue, nausea, chills, vomiting, back pain, pain, elevated body temperature, abdominal pain, diarrhea, cough, stomach discomfort, chest pain, joint swelling/effusion, influenza-like illness, pharyngolaryngeal pain, urticaria, and dizziness.
In clinical studies of patients being treated for chronic ITP, the most common adverse reactions, seen in >5% of subjects, were laboratory findings consistent with hemolysis, headache, elevated body temperature, anemia, nausea, and vomiting.
In clinical studies of patients being treated for CIDP, the most common adverse reactions, observed in >5% of subjects, were headache, asthenia, hypertension, nausea, pain in extremity, hemolysis, influenza-like illness, leukopenia, and rash.
The passive transfer of antibodies that occurs with Privigen treatment may interfere with a patient’s response to live virus vaccines and may lead to misinterpretation of serologic testing.
Indications for Privigen
Privigen is indicated for the treatment of:
- Primary humoral immunodeficiency (PI)
- Chronic immune thrombocytopenic purpura (ITP) in patients aged 15 years and older
- Chronic inflammatory demyelinating polyneuropathy (CIDP) in adults
- Limitation of use: maintenance therapy in CIDP has not been studied for periods longer than 6 months. Individualize duration of treatment beyond 6 months based on patient response.
Please see full prescribing information for Privigen.
To report SUSPECTED ADVERSE REACTIONS, contact the CSL Behring Pharmacovigilance Department at 1-866-915-6958 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
