ArticleAllergy, asthma & immunology research2025
Siglec-8 as a Biomarker for Predicting Anti-IL-5 Response in Severe Asthma.
Article in Allergy, asthma & immunology research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05164939 (Precision Medicine Intervention in Severe Asthma), which is not on this map. Not yet cited in PubMed.
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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.
Precision Medicine Intervention in Severe Asthma (PRISM) Study: Molecular Phenotyping of Participants With Severe Asthma to Determine Response to Biologic Therapies and Stability
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Authors and funding
20 authors.
Funding
Abstract
purposeBiologic therapies have revolutionized the management of severe asthma (SA), yet the variability in patient responses necessitates identification/verification of predictive biomarkers. Siglec-8, a sialic acid-binding immunoglobulin-like lectin 8 selectively that is expressed on eosinophils, could serve as a biomarker for predicting responsiveness to biologics in patients with SA. It is necessary to evaluate the predictive value of baseline serum Siglec-8 levels compared to other parameters, including blood eosinophil counts, in determining clinical responses to anti-interleukin 5 (IL-5) therapies in patients with SA.
methodsThis study included 68 patients with SA from the Precision Medicine Intervention in Severe Asthma study, who had initiated anti-IL-5 therapies and whose baseline serum Siglec-8 levels were measured. Clinical outcomes were assessed at 6 and 12 months following treatment. Excellent responders were defined as patients with zero exacerbations during follow-up. Multivariable logistic regression and receiver operating characteristic curve analyses were performed to compare the predictive performance of serum Siglec-8 levels versus that of other parameters.
resultsData from 29 patients treated with mepolizumab and 39 patients treated with reslizumab were analyzed. Baseline serum Siglec-8 levels showed a trend toward better diagnostic performance compared to blood eosinophil counts for predicting 6- and 12-month clinical responses (area under the curve, 0.931 vs. 0.836;
conclusionsBaseline serum Siglec-8 levels showed a trend toward better predictive performance than other parameters for predicting 6- and 12-month responses to anti-IL-5 therapies in patients with SA. These findings suggest that Siglec-8 may have the potential as a biomarker for guiding treatment decisions, although further validation in larger, prospective studies is warranted.
trial registrationClinicalTrials.gov Identifier: NCT05164939.
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