| Summary: | Dave Singh,1 Gerard J Criner,2 Alvar Agustí,3 Mona Bafadhel,4 Johan Söderström,5 Gabriela Luporini Saraiva,6 Yue Song,6 Idlir Licaj,7 Maria Jison,6 Ubaldo J Martin,6 Ioannis Psallidas8 1Manchester University NHS Foundation Hospital Trust, the University of Manchester, Manchester, UK; 2Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA; 3Respiratory Institute (Hospital Clinic), IDIBAPS, CIBERES, Catedra Salud Respiratoria (University of Barcelona), Barcelona, Spain; 4School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK; 5Late-stage Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden; 6Late-stage Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA; 7Cytel Inc, Cambridge, MA, USA; 8Late-Stage Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Cambridge, UKCorrespondence: Dave Singh, Medicines Evaluation Unit, Langley Building, University Hospital of South Manchester, NHS Foundation Trust, Southmoor Road, Manchester, M23 9QZ, UK, Tel +44 (0)161 946 4073, Email dsingh@meu.org.ukAbstract: Exacerbations in chronic obstructive pulmonary disease (COPD), which tend to occur in clusters and increase with disease severity, come with high societal and economic burdens. Prevention and delay of recurrent exacerbations is an unmet and significant therapeutic need for patients with COPD. GALATHEA (NCT02138916) and TERRANOVA (NCT02155660) were trials assessing efficacy of benralizumab in patients with frequent COPD exacerbations despite treatment. Although these studies found that benralizumab given as an add-on treatment did not significantly reduce annual rates of COPD exacerbations after 56 weeks of treatment, in the following exploratory post hoc analysis of the GALATHEA and TERRANOVA trials we identified a potential responder population in which treatment with benralizumab prevents recurrent COPD ...
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