| Hematopoietic subsyndrome of acute radiation syndrome
Nplate vs Neupogen
Side-by-side clinical, coverage, and cost comparison for hematopoietic subsyndrome of acute radiation syndrome.Deep comparison between: Nplate vs Neupogen 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 signalsNeupogen has a higher rate of injection site reactions vs Nplate based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Neupogen but not Nplate, including UnitedHealthcare
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Category
Nplate
Neupogen
At A Glance
SC injection
Once weekly (ITP); single dose (HS-ARS)
Thrombopoietin receptor agonist
SC injection
Daily
G-CSF
Indications
- Immune thrombocytopenic purpura
- Hematopoietic subsyndrome of acute radiation syndrome
- Febrile Neutropenia
- Leukemia, Myelocytic, Acute
- Neutropenia
- Severe congenital neutropenia
- Cyclic neutropenia
- Idiopathic neutropenia
- Hematopoietic subsyndrome of acute radiation syndrome
Dosing
Immune thrombocytopenic purpura Initial dose 1 mcg/kg SC injection once weekly; adjust by 1 mcg/kg increments based on platelet count; maximum weekly dose 10 mcg/kg.
Hematopoietic subsyndrome of acute radiation syndrome 10 mcg/kg as a single SC injection, administered as soon as possible after suspected or confirmed exposure to myelosuppressive doses of radiation (>2 Gy).
Febrile Neutropenia, Leukemia, Myelocytic, Acute 5 mcg/kg/day SC injection, short IV infusion (15-30 min), or continuous IV infusion; administer at least 24 hours after cytotoxic chemotherapy.
Neutropenia (bone marrow transplantation) 10 mcg/kg/day IV infusion no longer than 24 hours; administer at least 24 hours after cytotoxic chemotherapy and bone marrow infusion.
Autologous PBPC collection 10 mcg/kg/day SC injection; administer for at least 4 days before first leukapheresis and continue until last leukapheresis.
Severe congenital neutropenia 6 mcg/kg SC injection twice daily.
Cyclic neutropenia, Idiopathic neutropenia 5 mcg/kg SC injection daily.
Hematopoietic subsyndrome of acute radiation syndrome 10 mcg/kg/day SC injection; administer as soon as possible after suspected or confirmed exposure to radiation doses >2 Gy.
Contraindications
—
- History of serious allergic reactions to human granulocyte colony-stimulating factors such as filgrastim or pegfilgrastim
Adverse Reactions
Most common (>=5%) Arthralgia, myalgia, pain in extremity, shoulder pain, dizziness, paresthesia, insomnia, abdominal pain, dyspepsia (adults); contusion, upper respiratory tract infection, oropharyngeal pain, pyrexia, rash, diarrhea (pediatric)
Serious Progression of myelodysplastic syndromes, thrombotic/thromboembolic complications, loss of response, bone marrow reticulin formation and collagen fibrosis
Postmarketing Erythromelalgia, hypersensitivity reactions including angioedema and anaphylaxis
Most common (>=5%) Pyrexia, nausea, fatigue, thrombocytopenia, bone pain, back pain, rash, dizziness, cough, dyspnea, chest pain, arthralgia
Serious Splenic rupture, acute respiratory distress syndrome, serious allergic reactions, sickle cell disorders, glomerulonephritis, alveolar hemorrhage and hemoptysis, capillary leak syndrome, myelodysplastic syndrome, acute myeloid leukemia, thrombocytopenia, leukocytosis, cutaneous vasculitis, aortitis
Postmarketing Splenic rupture, splenomegaly, anaphylaxis, sickle cell disorders, glomerulonephritis, alveolar hemorrhage and hemoptysis, capillary leak syndrome, leukocytosis, cutaneous vasculitis, Sweet's syndrome, decreased bone density and osteoporosis, myelodysplastic syndrome, acute myeloid leukemia, aortitis, extramedullary hematopoiesis
Pharmacology
Thrombopoietin receptor agonist; Fc-peptide fusion protein (peptibody) that binds and activates the TPO receptor to increase platelet production through a mechanism analogous to endogenous TPO.
Filgrastim is a recombinant human G-CSF that binds to specific cell surface receptors on hematopoietic cells, stimulating neutrophil progenitor proliferation and differentiation and enhancing end-cell functional activities including phagocytic ability, respiratory burst priming, and antibody-dependent killing.
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Most Common Insurance
Anthem BCBS
Nplate
- Covered on 5 commercial plans
- PA (9/12) · Step Therapy (0/12) · Qty limit (0/12)
Neupogen
- Covered on 5 commercial plans
- PA (10/12) · Step Therapy (6/12) · Qty limit (0/12)
UnitedHealthcare
Nplate
- Covered on 4 commercial plans
- PA (0/8) · Step Therapy (0/8) · Qty limit (0/8)
Neupogen
- Covered on 4 commercial plans
- PA (0/8) · Step Therapy (1/8) · Qty limit (0/8)
Humana
Nplate
- Covered on 0 commercial plans
- PA (1/3) · Step Therapy (1/3) · Qty limit (0/3)
Neupogen
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (2/3) · Qty limit (1/3)
Coverage data sourced from MMIT. Updated monthly.
Savings
Cost estimate not availableAmgen Safety Net Foundation
Commercial or private insurance
Medicare, Medicaid, VA, TRICARE
Cost estimate not availableAssistance Fund: Acute Myeloid Leukemia
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.