| Congenital agammaglobulinemia
Cuvitru vs Gammaplex
Side-by-side clinical, coverage, and cost comparison for congenital agammaglobulinemia.Deep comparison between: Cuvitru vs Gammaplex 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 signalsGammaplex has a higher rate of injection site reactions vs Cuvitru based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Gammaplex but not Cuvitru, including UnitedHealthcare
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Category
Cuvitru
Gammaplex
At A Glance
SC injection
Daily to every 2 weeks
Immune globulin replacement (IgG)
IV infusion
Every 3-4 weeks
Immune globulin (IgG replacement)
Indications
- Common Variable Immunodeficiency
- X-linked agammaglobulinemia
- Congenital agammaglobulinemia
- Wiskott-Aldrich Syndrome
- Severe Combined Immunodeficiency
- Common Variable Immunodeficiency
- X-linked agammaglobulinemia
- Congenital agammaglobulinemia
- Wiskott-Aldrich Syndrome
- Severe Combined Immunodeficiency
- Immune thrombocytopenic purpura
Dosing
Common Variable Immunodeficiency, X-linked agammaglobulinemia, Congenital agammaglobulinemia, Wiskott-Aldrich Syndrome, Severe Combined Immunodeficiency Individualized SC infusion administered daily to every 2 weeks; patients switching from IGIV begin 1 week after last IGIV dose with initial weekly dose (g) = previous IGIV dose (g) x 1.30 divided by weeks between IGIV doses; patients switching from IGSC use the same weekly dose; monitor serum IgG trough levels to guide adjustments.
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.
Contraindications
- Previous anaphylactic or severe systemic hypersensitivity reaction to subcutaneous administration of human immune globulin
- IgA deficiency with antibodies against IgA and history of hypersensitivity to human immune globulin treatment
- Previous anaphylactic or severe systemic reaction to human immune globulin
- IgA deficiency with antibodies to IgA and a history of hypersensitivity
Adverse Reactions
Most common (>=5%) Local adverse reactions, headache, nausea, fatigue, diarrhea, vomiting
Postmarketing Aseptic meningitis, anaphylactic reaction, tachycardia, tremor, paresthesia, dyspnea, laryngospasm, injection site reaction (induration, warmth), chest discomfort
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
Pharmacology
CUVITRU is a human IgG replacement product that supplies a broad spectrum of opsonizing and neutralizing IgG antibodies against bacterial and viral agents, restoring abnormally low IgG levels to the normal range in patients with primary humoral immunodeficiency.
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.
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Most Common Insurance
Anthem BCBS
Cuvitru
- Covered on 5 commercial plans
- PA (10/12) · Step Therapy (5/12) · Qty limit (0/12)
Gammaplex
- Covered on 5 commercial plans
- PA (10/12) · Step Therapy (10/12) · Qty limit (0/12)
UnitedHealthcare
Cuvitru
- Covered on 4 commercial plans
- PA (2/8) · Step Therapy (0/8) · Qty limit (1/8)
Gammaplex
- Covered on 4 commercial plans
- PA (1/8) · Step Therapy (1/8) · Qty limit (0/8)
Humana
Cuvitru
- Covered on 0 commercial plans
- PA (1/3) · Step Therapy (1/3) · Qty limit (0/3)
Gammaplex
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (3/3) · Qty limit (0/3)
Coverage data sourced from MMIT. Updated monthly.
Savings
Cost estimate not availableAccessia Health: Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) - Private Insurance
Commercial or private insurance
Medicare, Medicaid, VA, TRICARE
No savings programs available for Gammaplex.
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.