Efbemalenograstim Alfa: First Approval

Declarations Funding The preparation of this review was not supported by any external funding. Authorship and Conflict of interest During the peer review process, the manufacturer of the agent under review was offered an opportunity to comment on the article. Changes resulting from any comments received were made by the authors on the basis of scientific completeness and accuracy. Hannah Blair is a salaried employee of Adis International Ltd/Springer Nature, and declares no relevant conflicts of interest. All authors contributed to the review and are responsible for the article content. Ethics approval, Consent to participate, Consent to publish, Availability of data and material, Code availability Not applicable.
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Abstract Efbemalenograstim alfa (Ryzneuta®) is a subcutaneously administered recombinant fusion protein that is being developed by Evive Biotech for the treatment of chemotherapy-induced neutropenia. On 6 May 2023, efbemalenograstim alfa was approved in China for reducing the incidence of infection, as manifested by febrile neutropenia, in adult patients with non-myeloid malignant tumours who are treated with myelosuppressive anticancer drugs that are prone to cause febrile neutropenia. Efbemalenograstim alfa is under regulatory review for the management of chemotherapy-induced neutropenia in the EU and the USA. This article summarizes the milestones in the development of efbemalenograstim alfa leading to this first approval for the management of chemotherapy-induced neutropenia.
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