| Congenital agammaglobulinemia
Gammaplex vs Privigen
Side-by-side clinical, coverage, and cost comparison for congenital agammaglobulinemia.Deep comparison between: Gammaplex vs Privigen with Prescriber.AI
AI compares prescribing info and payer-specific access barriers across 1,200+ formularies. Here's a preview of what prescribers are already asking.Safety signalsPrivigen has a higher rate of injection site reactions vs Gammaplex based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Privigen but not Gammaplex, including UnitedHealthcare
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Category
Gammaplex
Privigen
At A Glance
IV infusion
Every 3-4 weeks
Immune globulin (IgG replacement)
IV infusion
Every 3-4 weeks
Intravenous immunoglobulin (IVIG)
Indications
- Common Variable Immunodeficiency
- X-linked agammaglobulinemia
- Congenital agammaglobulinemia
- Wiskott-Aldrich Syndrome
- Severe Combined Immunodeficiency
- Immune thrombocytopenic purpura
- Congenital agammaglobulinemia
- Common Variable Immunodeficiency
- X-linked agammaglobulinemia
- Wiskott-Aldrich Syndrome
- Severe Combined Immunodeficiency
- Immune thrombocytopenic purpura
- Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
Dosing
Common Variable Immunodeficiency, X-linked agammaglobulinemia, Congenital agammaglobulinemia, Wiskott-Aldrich Syndrome, Severe Combined Immunodeficiency 300-800 mg/kg (3-8 mL/kg) IV every 3-4 weeks; initial infusion rate 0.5 mg/kg/min for 15 minutes, then increase gradually every 15 minutes to 8 mg/kg/min.
Immune thrombocytopenic purpura 1 g/kg (10 mL/kg) IV on 2 consecutive days (total dose 2 g/kg); initial infusion rate 0.5 mg/kg/min for 15 minutes, then increase gradually every 15 minutes to 8 mg/kg/min.
Congenital agammaglobulinemia, Common Variable Immunodeficiency, X-linked agammaglobulinemia, Wiskott-Aldrich Syndrome, Severe Combined Immunodeficiency 200-800 mg/kg IV every 3-4 weeks.
Immune thrombocytopenic purpura 1 g/kg IV daily for 2 consecutive days (total dose 2 g/kg).
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating Loading dose: 2 g/kg IV in divided doses over 2-5 consecutive days; maintenance dose: 1 g/kg IV every 3 weeks.
Contraindications
- Previous anaphylactic or severe systemic reaction to human immune globulin
- IgA deficiency with antibodies to IgA and a history of hypersensitivity
- History of anaphylactic or severe systemic reaction to human immune globulin
- Hyperprolinemia (product contains L-proline stabilizer)
- IgA deficiency with antibodies to IgA and a history of hypersensitivity
Adverse Reactions
Most common (>=5%) in PI Headache, migraine, pyrexia
Most common (>=5%) in ITP Headache, vomiting, pyrexia, nausea, arthralgia, dehydration
Serious Thrombotic events, hemolysis; in ITP subjects: headache, vomiting, dehydration
Postmarketing Tachycardia, thromboembolism, hypertension, flushing, nausea, chills, chest discomfort, pyrexia, back pain, polymyositis, headache, dyspnea, rash, urticaria
Most common (>5%) Headache, fatigue, nausea, chills, vomiting, back pain, elevated body temperature, diarrhea, cough, stomach discomfort, asthenia, hypertension, pain in extremity, hemolysis, anemia, leukopenia, rash
Serious Hypersensitivity, aseptic meningitis syndrome, hemolysis, renal dysfunction and acute renal failure, thrombosis, hyperproteinemia, hyponatremia, volume overload, transfusion-related acute lung injury
Postmarketing Decreased neutrophil count, hemoglobinuria, renal failure, photophobia, cerebral edema, pruritus, cardiac arrest, thromboembolism, Stevens-Johnson syndrome, ARDS, seizures, hepatic dysfunction
Pharmacology
Polyclonal human IgG that provides replacement therapy for primary humoral immunodeficiency via a broad spectrum of opsonic and neutralizing IgG antibodies against pathogens and their toxins through antigen binding and effector functions; the mechanism of action in both PI and ITP has not been fully elucidated.
PRIVIGEN is an intravenous immunoglobulin that supplies a broad spectrum of opsonizing and neutralizing IgG antibodies against a wide variety of bacterial and viral agents; the mechanism of action has not been fully elucidated but may include immunomodulatory effects.
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Most Common Insurance
Anthem BCBS
Gammaplex
- Covered on 5 commercial plans
- PA (10/12) · Step Therapy (10/12) · Qty limit (0/12)
Privigen
- Covered on 5 commercial plans
- PA (9/12) · Step Therapy (9/12) · Qty limit (0/12)
UnitedHealthcare
Gammaplex
- Covered on 4 commercial plans
- PA (1/8) · Step Therapy (1/8) · Qty limit (0/8)
Privigen
- Covered on 4 commercial plans
- PA (1/8) · Step Therapy (1/8) · Qty limit (0/8)
Humana
Gammaplex
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (3/3) · Qty limit (0/3)
Privigen
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (3/3) · Qty limit (0/3)
Coverage data sourced from MMIT. Updated monthly.
Savings
No savings programs available for Gammaplex.
No savings programs available for Privigen.
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.