The FDA has approved pegfilgrastim-pccg (Ennumo), a biosimilar referencing pegfilgrastim (Neulasta), to decrease the incidence of infections, as manifested by febrile neutropenia, in adult and pediatric patients with non-myeloid malignancies who are receiving myelosuppressive anticancer treatments that are associated with clinically significant incidences of febrile neutropenia.1
The biosimilar is approved for all of the current pegfilgrastim indications, which also include increasing survival in patients acutely exposed to myelosuppressive doses of radiation (Hematopoietic Subsyndrome of Acute Radiation Syndrome).
“Every FDA approval marks a step forward in our mission to expand patient access to high-quality, affordable biologic therapies,” Chrys Kokino, president of Accord North America, stated in a news release.“We are proud that we have and will continue to increase patient access to these critically important medicines.”
What other pegfilgrastim biosimilars have been FDA approved?
The FDA previously approved multiple biosimilars referencing pegfilgrastim to decrease the incidence of infection as manifested by febrile neutropenia in patients with non-myeloid malignancies receiving anti-cancer drugs associated with a clinically significant incidence of febrile neutropenia, including an autoinjector formulation of pegfilgrastim-cbqv (Udencya) on March 6, 2023, pegfilgrastim-pbbk (Fylnetra) on May 27, 2022, and pegfilgrastim-apgf (Nyvepria) on June 11, 2020.2,3,4
The on-body injector delivery formulation of pegfilgrastim-cbqv also received FDA approval on December 26, 2023.5 All delivery methods of this biosimilar (prefilled syringe, autoinjector, or on-body injector) are given the day after chemotherapy in efforts to reduce the rates of infection manifested by febrile neutropenia.
Pegfilgrastim-pccg Biosimilar Approved: Highlights
- Pegfilgrastim-pccg, a pegfilgrastim biosimilar, has been approved by the FDA for all indications of reference pegfilgrastim (Neulasta).
- Contraindications for pegfilgrastim-pccg include a history of serious hypersensitivity reactions, including anaphylaxis, to pegfilgrastim or filgrastim products.
- The use of pegfilgrastim products in patients with breast or lung cancer has been associated with the development of MDS and AML.
What are the important safety considerations for pegfilgrastim-pccg?
Notably, in patients with breast or lung cancer, myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML) have been associated with the use of pegfilgrastim products when received alongside chemotherapy or radiotherapy.1 For these patients, monitoring signs of MDS or AML is suggested.
Pegfilgrastim-pccg has a contraindication for patients with a history of serious hypersensitivity reactions, including anaphylaxis, to pegfilgrastim or filgrastim products. Splenic ruptures, which can be fatal, can be experienced by patients who receive pegfilgrastim treatments, and if a patient is experiencing left upper abdominal pain or shoulder pain, it is suggested that they be evaluated for a splenic rupture or enlarged spleen.
Glomerulonephritis, leukocytosis, and thrombocytopenia can all occur during treatment with pegfilgrastim. Notably, glomerulonephritis is usually resolved in patients after receiving a reduced dose of pegfilgrastim, interrupting treatment with this agent, or discontinuing treatment with this agent. Regarding leukocytosis, white blood cell (WBC) counts of 100 x 109/L or greater have occurred in patients who have received pegfilgrastim products, and monitoring of WBC counts throughout treatment is recommended. In terms of thrombocytopenia, platelet counts are recommended to be monitored during treatment with pegfilgrastim products.
Acute respiratory distress syndrome (ARDS) has also been observed in patients who receive treatment with pegfilgrastim products. It is suggested that patients with ARDS discontinue pegfilgrastim-pccg treatment. Additionally, patients who develop fever, lung infiltrates, or respiratory distress during treatment with pegfilgrastim-pccg should be evaluated for ARDS.
Capillary leak syndrome (defined by the presence of hypotension, hypoalbuminemia, edema, or hemoconcentration) has been reported following the administration of G-CSF, including pegfilgrastim products. The frequency and severity of these events vary but can be life threatening. It is recommended that patients who develop capillary leak syndrome symptoms are closely monitored and receive standard symptomatic treatment.
Notably, all approved pegfilgrastim biosimilars are contraindicated in patients who have a history of serious allergic reactions pegfilgrastim or pegfilgrastim products.1,2,3,4,5
References
- FDA approves Ennumo (pegfilgrastim-pccg), Accord BioPharma’s second pegfilgrastim biosimilar to Neulasta (pegfilgrastim). News release. Accord BioPharma.July 9, 2026. Accessed July 10, 2026. https://www.accordbiopharma.com/news/fda-approves-ennumo-pegfilgrastim-pccg-accord-biopharmas-second-pegfilgrastim-biosimilar-to-neulasta-pegfilgrastim/
- FDA approves Udenyca autoinjector. News release. Coherus BioSciences, Inc. March 6, 2023. Accessed July 10, 2026. https://investors.coherus.com/news-releases/news-release-details/fda-approves-udenycar-autoinjector
- Amneal achieves third U.S. biosimilar approval with Fylnetra (pegfilgrastim-pbbk). News release. Amneal Pharmaceuticals. May 27, 2022. Accessed July 10, 2026. https://investors.amneal.com/news/press-releases/press-release-details/2022/Amneal-Achieves-Third-U.S.-Biosimilar-Approval-with-FYLNETRA-pegfilgrastim-pbbk/default.aspx
- FDA approves Pfizer’s oncology supportive care biosimilar, Nyvepria (pegfilgrastim-apgf). News release. Pfizer. June 11, 2020. Accessed July 10, 2026. https://www.pfizer.com/news/press-release/press-release-detail/fda-approves-pfizers-oncology-supportive-care-biosimilar
- Coherus announces FDA approval of Udenyca Onbody‚ a novel and proprietary state-of-the-art delivery system for pegfilgrastim-cbqv. Coherus Biosciences. December 26, 2023. Accessed July 10, 2026. https://investors.coherus.com/news-releases/news-release-details/coherus-announces-fda-approval-udenyca-onbodytm-novel-and