Roche has held the rights to filgrastim and pegfilgrastim under license from
Filgrastim and pegfilgrastim are white blood cell boosting therapeutics used to reduce the risk of infection in patients receiving chemotherapy. They are marketed by
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About Neulasta and NEUPOGEN
Neulasta (pegfilgrastim) is indicated to decrease the incidence of infection, as manifested by febrile neutropenia, in patients with nonmyeloid malignancies receiving myelosuppressive anticancer drugs associated with a clinically significant incidence of febrile neutropenia. Neulasta is not indicated for the mobilization of peripheralblood progenitor cells for hematopoietic stem cell transplantation.
NEUPOGEN (filgrastim) is indicated to decrease the incidence of infection‚ as manifested by febrile neutropenia‚ in patients with nonmyeloid malignancies receiving myelosuppressive anticancer drugs associated with a significant incidence of severe neutropenia with fever. A complete blood count and platelet count should be obtained prior to chemotherapy, and twice per week during NEUPOGEN therapy to avoid leukocytosis and to monitor the neutrophil count.
Important Safety Information
Do not administer Neulasta to patients with a history of serious allergic reactions to pegfilgrastim or filgrastim. NEUPOGEN is contraindicated in patients with known hypersensitivity to E coli-derived proteins, filgrastim‚ or any component of the product.
Serious allergic reactions, including anaphylaxis, can occur in patients receiving Neulasta or NEUPOGEN. Reported events have occurred with initial and/or subsequent treatment. Allergic reactions can recur within days after the discontinuation of initial anti-allergic treatment. Permanently discontinue Neulasta or NEUPOGEN in patients with serious allergic reactions.
Splenic rupture, including fatal cases, can occur following the administration of Neulasta and NEUPOGEN. Evaluate for an enlarged spleen or splenic rupture in patients who report left upper abdominal or shoulder pain after receiving Neulasta or NEUPOGEN.
Acute respiratory distress syndrome (ARDS) can occur in patients receiving Neulasta or NEUPOGEN. Evaluate patients who develop fever and lung infiltrates or respiratory distress after receiving Neulasta or NEUPOGEN for ARDS. Discontinue Neulasta or NEUPOGEN in patients with ARDS.
Alveolar hemorrhage, manifesting as pulmonary infiltrates and hemoptysis requiring hospitalization, has been reported in healthy donors undergoing peripheral blood progenitor cell mobilization, an unapproved use of NEUPOGEN. Hemoptysis resolved with discontinuation of NEUPOGEN.
Severe sickle cell crises can occur in patients with sickle cell disorders receiving Neulasta. Severe and sometimes fatal sickle cell crises can occur in patients with sickle cell disorders receiving filgrastim, the parent compound of pegfilgrastim.
Thrombocytopenia has been reported commonly in patients receiving NEUPOGEN. Platelet counts should be monitored closely.
The granulocyte colony-stimulating factor (G-CSF) receptor, through which pegfilgrastim and filgrastim act, has been found on tumor cell lines. The possibility that pegfilgrastim and filgrastim act as growth factors for any tumor type, including myeloid malignancies and myelodysplasia, diseases for which they are not approved, cannot be excluded.
Bone pain and pain in extremity occurred at a higher incidence in Neulasta-treated patients as compared with placebo-treated patients. In clinical trials involving NEUPOGEN, bone pain was the most frequently reported adverse event.
This news release contains forward-looking statements that involve significant risks and uncertainties, including those discussed below and others that can be found in our Form 10-K for the year ended Dec. 31, 2012, and in any subsequent periodic reports on Form 10-Q and Form 8-K. Amgen is providing this information as of the date of this news release and does not undertake any obligation to update any forward-looking statements contained in this document as a result of new information, future events or otherwise.
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