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In this trial, patients with systolic heart failure and anemia were assigned to receive either darbepoetin alfa or placebo. At 28 months, there was no significant difference in the rate of death from any cause or hospitalization for worsening heart failure. Anemia is common in patients with heart failure, and patients with both heart failure and anemia have a lower functional capacity, worse quality of life, and higher rates of hospitalization and death 1 – 3 than those without anemia. 4 , 5 The cause of anemia in patients with heart failure is often unknown but may be related to an absolute or relative deficiency of, or resistance to, erythropoietin. Anemia in such patients is associated with impaired renal function, inflammation, and use of renin–angiotensin system blockers. 6 , 7 Small studies have suggested that increasing the hemoglobin level with the use of an erythropoiesis-stimulating agent (ESA) . . .

This randomized trial compared daprodustat, an oral hypoxia-inducible factor prolyl hydroxylase inhibitor, with darbepoetin alfa for the treatment of anemia in patients with chronic kidney disease who were not undergoing dialysis. Daprodustat was noninferior to darbepoetin alfa with respect to the change in hemoglobin level and cardiovascular outcomes.

This randomized, phase 3 trial compared the effectiveness of roxadustat, an oral hypoxia-inducible factor prolyl hydroxylase inhibitor, with epoetin alfa in patients undergoing hemodialysis or peritoneal dialysis in China. Oral roxadustat was noninferior to parenteral epoetin alfa as therapy for anemia.

Luspatercept is a fusion protein aimed at binding TGF-β family members and reducing SMAD2 and SMAD3 signaling in patients with myelodysplasia with ring sideroblasts. In a randomized trial involving transfusion-dependent patients with lower-risk disease, transfusion independence for 8 weeks or longer occurred in 38% of patients in the luspatercept group and 13% of those in the placebo group.

This phase 3, randomized trial in China compared the efficacy and safety of roxadustat, an oral hypoxia-inducible factor prolyl hydroxylase inhibitor, with placebo for anemia in patients with CKD who were not undergoing dialysis. Roxadustat was superior to placebo in increasing and maintaining hemoglobin levels.

Patients with transfusion-dependent β-thalassemia were randomly assigned to receive luspatercept (a binder for TGF-β family member ligands) or placebo. During any 12-week period, a greater percentage of patients in the luspatercept group than in the placebo group had a reduction of at least 33% (70.5% vs. 29.5%) or at least 50% (40.2% vs. 6.3%) in the transfusion requirement.

Cancer-related anemia is a cytokine-mediated disorder resulting from complex interactions between tumor cells and the immune system. Overexpression of certain inflammatory cytokines results in shortened survival of red blood cells, suppression of erythroid progenitor cells, impaired iron utilization, and inadequate erythropoietin production. Numerous other factors may also contribute to the development of anemia in cancer patients. The European Cancer Anaemia Survey (ECAS) has provided the most current, comprehensive, prospectively collected data on the incidence and prevalence of anemia among cancer patients, as well as important perspectives on anemia treatment and relationship of hemoglobin and performance status. ECAS enrolled over 15,000 treated and untreated patients with various malignancies from cancer centers in 24 European countries and followed them for up to 6 months. The initial analysis of the ECAS data revealed that 39% of the total cancer patient population was anemic (hemoglobin <12.0 g/dl) at enrollment, although the rate varied according to tumor type, disease status, and cancer treatment status. Of the patients who were not anemic at enrollment and started cancer treatment during the survey, those undergoing chemotherapy – either alone or in combination with radiotherapy – had the highest incidence of anemia (63 and 42%, respectively). Low hemoglobin levels correlated with poor performance status and only 40% of patients who were anemic at some time during the survey received treatment for their anemia. These findings are noteworthy, since a growing body of clinical evidence indicates that the treatment of anemia can significantly improve patients’ quality of life and may also improve the clinical outcome.

Two randomized, phase 3, open-label noninferiority trials compared vadadustat with darbepoetin alfa in patients with non–dialysis-dependent chronic kidney disease. Vadadustat, as compared with darbepoetin alfa, met the prespecified noninferiority criterion for hematologic efficacy but not for cardiovascular safety.

This trial compared the oral HIF-PHI daprodustat with conventional erythropoiesis-stimulating agents for the treatment of anemia in patients with chronic kidney disease receiving dialysis. Daprodustat was noninferior to ESAs regarding the change in the hemoglobin level from baseline and cardiovascular outcomes.

Two randomized, open-label, noninferiority phase 3 trials compared the prolyl hydroxylase inhibitor vadadustat with darbepoetin alfa in patients with incident or prevalent chronic kidney disease who were undergoing dialysis. Vadadustat was noninferior to darbepoetin alfa with respect to cardiovascular safety and correction and maintenance of hemoglobin concentrations.