| X-linked agammaglobulinemia
Bivigam vs Xembify
Side-by-side clinical, coverage, and cost comparison for x-linked agammaglobulinemia.Deep comparison between: Bivigam vs Xembify 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 signalsXembify has a higher rate of injection site reactions vs Bivigam based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Xembify but not Bivigam, including UnitedHealthcare
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Category
Bivigam
Xembify
At A Glance
IV infusion
Every 3-4 weeks
Intravenous immune globulin (IVIG)
SC injection
Daily to every 2 weeks
Immune globulin replacement
Indications
- Common Variable Immunodeficiency
- X-linked agammaglobulinemia
- Congenital agammaglobulinemia
- Wiskott-Aldrich Syndrome
- Severe Combined Immunodeficiency
- Primary immune deficiency disorder
- Congenital agammaglobulinemia
- Common Variable Immunodeficiency
- X-linked agammaglobulinemia
- Wiskott-Aldrich Syndrome
- Severe Combined Immunodeficiency
Dosing
Common Variable Immunodeficiency, X-linked agammaglobulinemia, Congenital agammaglobulinemia, Wiskott-Aldrich Syndrome, Severe Combined Immunodeficiency 300 to 800 mg/kg IV every 3 to 4 weeks; initial infusion rate 0.5 mg/kg/min, increase every 20 minutes if tolerated up to 6 mg/kg/min; adjust dose to maintain trough IgG >= 600 mg/dL.
Primary immune deficiency disorder, Congenital agammaglobulinemia, Common Variable Immunodeficiency, X-linked agammaglobulinemia, Wiskott-Aldrich Syndrome, Severe Combined Immunodeficiency SC infusion only; treatment-naive: 150 mg/kg/day loading dose for 5 consecutive days, then 150 mg/kg/week maintenance starting Day 8; switching from IVIG: begin 1 week after last IVIG, initial weekly dose (g) = prior IVIG dose (g) x 1.37 / number of weeks between IVIG doses; switching from IGSC: administer same weekly dose (g) as prior IGSC; doses may be adjusted for frequent (2-7 times/week) or biweekly administration.
Contraindications
- Previous anaphylactic or severe systemic reaction to human immune globulin
- IgA deficiency with antibodies to IgA and a history of hypersensitivity
- Previous anaphylactic or severe systemic reaction to human immune globulin
- IgA deficiency with antibodies against IgA and history of hypersensitivity to human immune globulin treatment
Adverse Reactions
Most common (>=5%) Headache, fatigue, infusion site reaction, nausea, sinusitis, blood pressure increased, diarrhea, dizziness, lethargy
Serious Vomiting, dehydration
Postmarketing Apnea, ARDS, TRALI, cyanosis, hypoxemia, pulmonary edema, dyspnea, bronchospasm, cardiac arrest, thromboembolism, vascular collapse, hypotension, coma, loss of consciousness, seizures, tremor, Stevens-Johnson syndrome, epidermolysis, erythema multiforme, bullous dermatitis, pancytopenia, leukopenia, hemolysis, positive direct antiglobulin test, pyrexia, rigors, back pain, hepatic dysfunction, abdominal pain
Most common (>=5%) Infusion site erythema, infusion site pain, infusion site swelling, infusion site bruising, infusion site nodule, infusion site pruritus, infusion site induration, infusion site scab, infusion site edema, cough, diarrhea
Postmarketing Anaphylactic reaction, hypersensitivity, aseptic meningitis, dizziness, paresthesia, tachycardia, hypotension, dyspnea, chest discomfort, injection site reactions, chills, fatigue, pain, tremor, laryngospasm
Pharmacology
BIVIGAM is an intravenous IgG replacement therapy that provides a broad spectrum of neutralizing antibodies against bacterial and viral pathogens and their toxins; IgG antibodies act as opsonins, enhancing phagocytosis and elimination of pathogens from the circulation.
XEMBIFY supplies a broad spectrum of opsonizing and neutralizing IgG antibodies against bacterial, viral, parasitic, and mycoplasmal agents and their toxins, and contains antibodies capable of interacting with and altering the activity of immune system cells, though the full mechanism is not completely understood.
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Most Common Insurance
Anthem BCBS
Bivigam
- Covered on 5 commercial plans
- PA (10/12) · Step Therapy (10/12) · Qty limit (0/12)
Xembify
- Covered on 5 commercial plans
- PA (9/12) · Step Therapy (5/12) · Qty limit (0/12)
UnitedHealthcare
Bivigam
- Covered on 4 commercial plans
- PA (1/8) · Step Therapy (0/8) · Qty limit (0/8)
Xembify
- Covered on 4 commercial plans
- PA (1/8) · Step Therapy (0/8) · Qty limit (0/8)
Humana
Bivigam
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (3/3) · Qty limit (0/3)
Xembify
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (1/3) · 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
Cost estimate not availableAccessia Health: Primary Immune Deficiency - Private Insurance: Waitlist
Commercial or private insurance
Medicare, Medicaid, VA, TRICARE
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.