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Updated: Jun 26, 2026

A Comprehensive Pipeline to Assess the Efficiency of Human Erythropoiesis In Vitro and Ex Vivo
Published on: January 10, 2025
A risk model for severe anemia to select cancer patients for primary prophylaxis with epoetin alpha: a prospective
I Ray-Coquard1, S Dussart, C Goillot
1Department of Medical Oncology, Léon Bérard Comprehensive Cancer Center, University of Lyon, and EA 4128 SIS Individu Santé, Société, Lyon, France. ray@lyon.fnclcc.fr
Background:
Epoetin (EPO) administration reduces the need for transfusion. Identifying patients at high risk of anemia requiring red blood cell (RBC) transfusion is needed. This multicentric phase III trial tested epoetin alpha (EPOalpha) administration according to our risk model on the basis of three clinical parameters: hemoglobin (Hb) <12 g/dl, lymphocytes
Patients And Methods:
Patients >or=18 years with chemotherapy-treated solid or hematologic tumors were randomized to 150 UI/kg/TIW s.c. EPOalpha (arm 1) or no EPOalpha (arm 2) and stratified on Hb level at day 0, lymphocyte count, and PS. The primary end point was transfusion rate; secondary end points included overall survival (OS), safety, and quality of life.
Results:
From September 2000 to January 2005, 218 patients (median age 64 years, 42.7% males) with principally breast cancer, sarcoma, or lung carcinoma were included. In total, 93% patients had PS >1 and 35% had
Conclusion:
Patients at high risk for RBC transfusion according to the ELYPSE model could be given prophylactic EPO with significantly reduced RBC transfusions and no significant impact on side-effects, progression-free survival, and OS.
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Factors Affecting Erythropoiesis
Several factors influence the erythrocyte production rate, with tissue oxygen level being among the most critical. Intense exercise or high altitudes can cause tissue hypoxia, which triggers the kidneys to release more erythropoietin (EPO) into the bloodstream.
EPO then...
