| Immune thrombocytopenic purpura
Alvaiz vs Gammaked
Side-by-side clinical, coverage, and cost comparison for immune thrombocytopenic purpura.Deep comparison between: Alvaiz vs Gammaked 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 signalsGammaked has a higher rate of injection site reactions vs Alvaiz based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Gammaked but not Alvaiz, including UnitedHealthcare
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Category
Alvaiz
Gammaked
At A Glance
Oral
Daily
TPO-receptor agonist
IV infusion
Immune globulin
Indications
- Immune thrombocytopenic purpura
- Hepatitis C, Chronic
- Severe Aplastic Anemia
- 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
Dosing
Immune thrombocytopenic purpura Initiate at 36 mg orally once daily (18 mg for East-/Southeast-Asian ancestry or hepatic impairment; 9 mg for both); adjust in 18-mg increments to maintain platelet count >=50 x 10^9/L; maximum 54 mg daily.
Hepatitis C, Chronic Initiate at 18 mg orally once daily; adjust in 18-mg increments every 2 weeks to achieve platelet count needed to initiate or maintain pegylated interferon and ribavirin therapy; maximum 72 mg daily; discontinue when antiviral therapy is discontinued.
Severe Aplastic Anemia Initiate at 36 mg orally once daily (18 mg for East-/Southeast-Asian ancestry or hepatic impairment); adjust in 36-mg increments every 2 weeks to maintain platelet count >=50 x 10^9/L; maximum 108 mg daily.
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).
Contraindications
—
- Previous anaphylactic or severe systemic reaction to human immune globulin
- IgA deficiency with antibodies against IgA and history of hypersensitivity reaction
Adverse Reactions
Most common (>=3%) Nausea, diarrhea, upper respiratory tract infection, vomiting, urinary tract infection, increased ALT, myalgia, oropharyngeal pain, increased AST, pharyngitis, back pain, influenza, paresthesia, rash
Serious Hemorrhage, thrombotic/thromboembolic complications, hepatic decompensation, hepatotoxicity, cataracts
Postmarketing Skin discoloration including hyperpigmentation and skin yellowing
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
Pharmacology
Eltrombopag is a TPO-receptor agonist that interacts with the transmembrane domain of the human TPO-receptor (cMpl), initiating signaling cascades that induce proliferation and differentiation of megakaryocytes, leading to increased platelet production.
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.
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Most Common Insurance
Anthem BCBS
Alvaiz
- Covered on 5 commercial plans
- PA (9/12) · Step Therapy (9/12) · Qty limit (1/12)
Gammaked
- Covered on 5 commercial plans
- PA (10/12) · Step Therapy (10/12) · Qty limit (0/12)
UnitedHealthcare
Alvaiz
- Covered on 4 commercial plans
- PA (4/8) · Step Therapy (4/8) · Qty limit (0/8)
Gammaked
- Covered on 4 commercial plans
- PA (0/8) · Step Therapy (0/8) · Qty limit (0/8)
Humana
Alvaiz
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (2/3) · Qty limit (3/3)
Gammaked
- 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 availablePAF Co-Pay Relief: Aplastic Anemia
Commercial or private insurance
Medicare, Medicaid, VA, TRICARE
No savings programs available for Gammaked.
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.