Trial reportNature medicine2026
Benralizumab versus placebo for hypereosinophilic syndrome: a randomized, placebo-controlled phase 3 trial.
Trial report in Nature medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT04191304 (A Multicentre, Randomised, Double-blind, Parallel-group, Placebo-controlled, 24-Week Phase III Study With an Open-label Extension to Evaluate the Efficacy and Safety of Benralizumab in Patients With Hypereosinophilic Syndrome), which is not on this map. Cited by 4 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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 Multicentre, Randomised, Double-blind, Parallel-group, Placebo-controlled, 24-Week Phase III Study With an Open-label Extension to Evaluate the Efficacy and Safety of Benralizumab in Patients With Hypereosinophilic Syndrome (HES)
Who cites it
4 citing papers in PubMed.
- Treatment patterns and disease burden of hypereosinophilic syndrome (HES) in the United States: A real-world observational, retrospective cohort study.The World Allergy Organization journal · 2026Article
- Patient Journey, Treatment Patterns, and Disease Burden of Patients With Idiopathic Hypereosinophilic Syndrome.EJHaem · 2026Article
- Fibrotic chronic eosinophilic pneumonia: from inflammation to fibrosis and therapeutic implications.European respiratory review : an official journal of the European Respiratory Society · 2026Review
- Biological functions and clinical efficacy of IL-5/IL-5Rα-targeted therapies across eosinophilia-associated diseases.Frontiers in immunology · 2026Review
Corrections and comments
- Erratum issued
Authors and funding
23 authors.
Funding
Abstract
Benralizumab, an eosinophil-depleting anti-IL-5 receptor α antibody, has demonstrated efficacy in severe eosinophilic asthma and eosinophilic granulomatosis with polyangiitis and shown promising results in hypereosinophilic syndrome (HES). NATRON was a randomized, double-blind placebo-controlled phase 3 study evaluating the efficacy and safety of benralizumab in FIP1L1::PDGFRA-negative HES. The primary endpoint was time to first HES flare. In total, 133 patients (median (range) age 51 (14-87) years, 62% female) were randomized (1:1) to receive benralizumab 30 mg every 4 weeks or placebo for 24 weeks, in addition to background therapy. Benralizumab significantly reduced the risk of first flare versus placebo (hazard ratio 0.35, 95% CI 0.18 to 0.69, P = 0.0024). Adverse events occurred in 64.2% and 66.7% of benralizumab- and placebo-treated patients, respectively. Benralizumab's safety was consistent with its known profile. These results demonstrate the efficacy and safety of add-on benralizumab in the treatment of HES. ClinicalTrials.gov identifier: NCT04191304 .
Indexed as
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.