What does this research mean for the field?

A high prevalence (83%) of COPD patients presenting to the emergency department with exacerbations exhibit a Type 2 high inflammatory phenotype (blood eosinophils ≥300/µL), indicating a significant population that could benefit from targeted biologic therapies like dupilumab. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to assess the prevalence of type 2 inflammation among COPD patients in an Irish tertiary referral center.

May 20, 2026American Journal of Respiratory and Critical Care Medicine

C35-17 Prevalence of Type 2 High Inflammatory Phenotype COPD in an Irish Tertiary Referral Centre

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Authors

JMJ MccarthyUniversity Hospital Galway JKJ KerinsUniversity Hospital Galway SWS WalshUniversity Hospital Galway

Discussion

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Implication

Observational study investigates type 2 inflammation in COPD patients, suggesting targeted therapy may reduce exacerbations.

Key Points

The study aims to assess the prevalence of type 2 inflammation among COPD patients in an Irish tertiary referral center.
Single center observational study from July 2024 to July 2025.
Data collected included demographics, eosinophil counts, comorbidities, smoking status, and pulmonary function tests.
Patients with COPD were included based on their presenting complaint in the emergency department.
1103 patients with COPD presented to the ED; 243 had exacerbations requiring 380 hospital admissions.
83% of patients had eosinophils ≥300/µL; 30% had high eosinophil counts despite treatment with corticosteroids.
Targeted therapy for type 2 inflammation is recommended, particularly with dupilumab, to potentially reduce exacerbation frequency.

Cite This Study

Mccarthy et al. (2026) studied this question.

synapsesocial.com/papers/6a0d5040f03e14405aa9becf https://doi.org/10.1093/ajrccm/aamag162.1961

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C35-17 Prevalence of Type 2 High Inflammatory Phenotype COPD in an Irish Tertiary Referral Centre

Discussion

Member takes

Implication

Key Points

Cite This Study

C35-17 Prevalence of Type 2 High Inflammatory Phenotype COPD in an Irish Tertiary Referral Centre

Discussion

Member takes

Implication

Key Points

Cite This Study

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