| Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
Gammaked vs Vyvgart Hytrulo
Side-by-side clinical, coverage, and cost comparison for polyradiculoneuropathy, chronic inflammatory demyelinating.Deep comparison between: Gammaked vs Vyvgart Hytrulo 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 signalsVyvgart Hytrulo has a higher rate of injection site reactions vs Gammaked based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Vyvgart Hytrulo but not Gammaked, including UnitedHealthcare
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Category
Gammaked
Vyvgart Hytrulo
At A Glance
IV infusion
Immune globulin
SC injection
Once weekly
FcRn blocker
Indications
- Primary immune deficiency disorder
- Immune thrombocytopenic purpura
- Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
- Congenital agammaglobulinemia
- Common Variable Immunodeficiency
- X-linked agammaglobulinemia
- Wiskott-Aldrich Syndrome
- Severe Combined Immunodeficiency
- Myasthenia Gravis, Generalized
- Polyradiculoneuropathy, Chronic Inflammatory Demyelinating
Dosing
Primary immune deficiency disorder IV: 300-600 mg/kg every 3-4 weeks; SC (PI only): individualized weekly dose calculated as previous IGIV dose (g) x 1.37 divided by number of weeks between IV doses.
Immune thrombocytopenic purpura IV only: total dose 2 g/kg given as 1 g/kg on two consecutive days or 0.4 g/kg on five consecutive days; do not administer subcutaneously.
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating IV only: loading dose 2 g/kg over two to four consecutive days; maintenance 1 g/kg every 3 weeks (or 0.5 g/kg on two consecutive days every 3 weeks).
Myasthenia Gravis, Generalized 1,000 mg efgartigimod alfa/10,000 units hyaluronidase SC once weekly for 4-week cycles (prefilled syringe over 20-30 seconds) or 1,008 mg/11,200 units (vial over 30-90 seconds); subsequent cycles based on clinical evaluation.
Polyradiculoneuropathy, Chronic Inflammatory Demyelinating 1,000 mg efgartigimod alfa/10,000 units hyaluronidase SC once weekly (prefilled syringe over 20-30 seconds) or 1,008 mg/11,200 units (vial over 30-90 seconds); continue based on clinical response.
Contraindications
- Previous anaphylactic or severe systemic reaction to human immune globulin
- IgA deficiency with antibodies against IgA and history of hypersensitivity reaction
- Serious hypersensitivity to efgartigimod alfa products, hyaluronidase, or any excipient of VYVGART HYTRULO (including anaphylaxis and hypotension leading to syncope)
Adverse Reactions
Most common (>=5%) PI (IV): cough, rhinitis, pharyngitis, headache, asthma, nausea, fever, diarrhea, sinusitis; PI (SC): local infusion site reactions, fatigue, headache, upper respiratory tract infection, arthralgia, diarrhea, nausea, sinusitis, bronchitis, depression, allergic dermatitis, erythema, migraine, myalgia, viral infection, pyrexia; ITP: headache, ecchymosis, vomiting, fever, nausea, rash, abdominal pain, back pain, dyspepsia; CIDP: headache, pyrexia, hypertension, chills, rash, nausea, arthralgia, asthenia
Serious Pulmonary embolism (CIDP), exacerbation of autoimmune pure red cell aplasia (PI), hemolytic anemia
Postmarketing Anaphylaxis, tachycardia, acute renal dysfunction/failure, ARDS, TRALI, pulmonary edema, cardiac arrest, thromboembolism, coma, seizures, aseptic meningitis, Stevens-Johnson syndrome, pancytopenia, hemolytic anemia, hepatic dysfunction
Most common (>=10%) Injection site reactions (rash, erythema, pruritus, bruising, pain, urticaria), headache
Serious Infections, hypersensitivity reactions (including anaphylaxis and hypotension), infusion/injection-related reactions
Postmarketing Hypersensitivity reactions including anaphylaxis and hypotension, infusion/injection-related reactions, worsening of CIDP symptoms when transitioning from intravenous immunoglobulin treatment
Pharmacology
GAMMAKED is an immune globulin that supplies a broad spectrum of opsonic and neutralizing IgG antibodies against bacterial, viral, parasitic, and mycoplasmal agents and their toxins; the precise mechanism of action in ITP and CIDP has not been fully elucidated.
Efgartigimod alfa, a human IgG1 Fc fragment, binds to the neonatal Fc receptor (FcRn) and reduces circulating IgG; co-formulated hyaluronidase transiently depolymerizes hyaluronan to increase subcutaneous tissue permeability for 24 to 48 hours.
Enter your patient's insuranceCheck specific coverage details for your patient.
Most Common Insurance
Anthem BCBS
Gammaked
- Covered on 5 commercial plans
- PA (10/12) · Step Therapy (10/12) · Qty limit (0/12)
Vyvgart Hytrulo
- Covered on 5 commercial plans
- PA (9/12) · Step Therapy (9/12) · Qty limit (9/12)
UnitedHealthcare
Gammaked
- Covered on 4 commercial plans
- PA (0/8) · Step Therapy (0/8) · Qty limit (0/8)
Vyvgart Hytrulo
- Covered on 4 commercial plans
- PA (4/8) · Step Therapy (4/8) · Qty limit (0/8)
Humana
Gammaked
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (3/3) · Qty limit (0/3)
Vyvgart Hytrulo
- Covered on 0 commercial plans
- PA (2/3) · Step Therapy (2/3) · Qty limit (0/3)
Coverage data sourced from MMIT. Updated monthly.
Savings
No savings programs available for Gammaked.
No savings programs available for Vyvgart Hytrulo.
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.