Trial reportBMC cancer2024
A randomized, multicenter phase III Study of once-per-cycle administration of efbemalenograstim alfa (F-627), a novel long-acting rhG-CSF, for prophylaxis of chemotherapy-induced neutropenia in patients with breast cancer.
Trial report in BMC cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04174599 (A Phase III, Multi-Center, Randomized, Open-Label, Active-Controlled Study to Compare the Efficacy and Safety of F-627 and GRAN® in the Prophylactic Treatment for Chemotherapy-Induced Neutropenia), which is not on this map. Cited by 8 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase III, Multi-Center, Randomized, Open-Label, Active-Controlled Study to Compare the Efficacy and Safety of F-627 and GRAN® in the Prophylactic Treatment for Chemotherapy-Induced Neutropenia
Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Safety and Efficacy of Efbemalenograstim Alfa for Patients at Risk for Chemotherapy-Induced Neutropenia: A Systematic Review and Meta-Analysis.Pharmacology · 2026Pooled it
- Mecapegfilgrastim for Prophylaxis of Immunochemotherapy-Induced Neutropenia in Patients With Diffuse Large B-Cell Lymphoma: A Multicenter Pilot Trial.Cancer medicine · 2026Trial
- Efbemalenograstim Alfa, an Fc Fusion Protein, Long‑Acting Granulocyte Colony-Stimulating Factor for Reducing the Risk of Chemotherapy-Induced Neutropenia: Results of a Phase II Randomized, Multicenter, Open‑Label Trial.Clinical drug investigation · 2025Trial
- Comparative efficacy and safety of four long-acting granulocyte colony-stimulating factors for primary prophylaxis in patients with breast cancer: a prospective observational cohort study in China.EClinicalMedicine · 2026Article
- Granulocyte colony-stimulating factor-induced hypersensitivity reaction with leukocytosis in a pediatric germ cell tumor patient: a case report.Frontiers in pediatrics · 2026Article
- Article
- Review
- Neutrophils in Cancer immunotherapy: friends or foes?Molecular cancer · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
20 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundF-627 (efbemalenograstim alfa) is a novel long acting granulocyte colony-stimulating factor (G-CSF) that contains two human G-CSF fused to a human immunoglobulin G2 (hIgG2) -Fc fragment with a peptide linker. This studyevaluated the efficacy and safety of F-627, also known as efbemalenograstim alfa (Ryzneuta®) in reducing neutropenia compared with filgrastim (GRAN®).
methodsThis was a multicenter, randomized, open-label, active-controlled non-inferiority study. Two hundred thirty nine (239) patients were enrolled in thirteen centers and received the chemotherapy with epirubicin (100 mg/m
resultsThe mean (SD) duration of grade 3 or 4 neutropenia in cycle 1 was 0.68 (1.10) and 0.71 (0.95) days for the F-627 and the filgrastim groups, respectively. The Hodges-Lehmann estimate of the between-group median difference (F-627 vs filgrastim) in the duration of grade 3 or 4 neutropenia in cycle 1 was 0 day and the upper limit of the one-sided 97.5% CI was 0 day, which was within the prespecified non-inferiority margin of 1-day. Results for all efficacy endpoints in cycles 2 - 4 were consistent with the results in cycle 1, however a trend towards a lower incidence and a shorter duration of grade 3 or 4 neutropenia and grade 4 neutropenia was observed in the F-627 group compared with the filgrastim group. The ANC nadir in the F-627 group was significantly higher than that in the filgrastim group in each cycle. A single fixed dose of F-627 was well tolerated and as safe as standard daily filgrastim.
conclusionsA single fixed dose of 20 mg of F-627 in each cycle was as safe and effective as a daily dose of filgrastim 5 µg/kg/d in reducing neutropenia and its complications in patients who received four cycles of EC.
trial registrationClinicalTrials.gov: NCT04174599, on 22/11/2019.
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