Dupilumab in Type 2-Inflamed COPD Across the Full Spectrum of Airflow Limitation: An Italian Multicentre Retrospective Cohort Study

Brief summary (registry, in English)

This multicentre retrospective cohort study describes lung function and patient-reported outcomes in adults with chronic obstructive pulmonary disease (COPD) and type 2 inflammation who received add-on dupilumab in routine clinical care at six Italian centres. During the study period dupilumab was not reimbursed for COPD in Italy and was provided exclusively through the manufacturer's named-patient compassionate-use programme. Access to that programme required a documented blood eosinophil count of at least 300 cells/microliter, at least two moderate or one severe exacerbation in the preceding 12 months, and persistent symptoms despite maximal inhaled therapy, but set no upper or lower limit on the degree of airflow limitation. As a consequence, the cohort includes participants whose airflow limitation falls outside the post-bronchodilator forced expiratory volume in 1 second (FEV1) window of 30 to 70 percent predicted that was required for entry into the BOREAS and NOTUS registration trials. Post-bronchodilator spirometry, COPD Assessment Test (CAT) score, modified Medical Research Council (mMRC) dyspnoea grade and, where locally available, fractional exhaled nitric oxide (FeNO) were recorded at treatment initiation and at approximately 12 weeks. The variable of primary interest is the change from baseline in post-bronchodilator FEV1 at 12 weeks, the timepoint pre-specified for the lung function endpoint of the registration trials. A pre-specified analysis compares the change in FEV1 between participants whose baseline FEV1 falls inside the 30 to 70 percent predicted window and those whose baseline FEV1 falls outside it. The study is observational and non-interventional. Dupilumab was prescribed independently of the study, according to clinical judgement and the rules of the compassionate-use programme, and no study-specific procedure was performed. Data were abstracted from routine clinical records.

What you commit to

• Study type: Observational
• Participants enrolled: 40
• From 1 Oct 2024 to the primary completion date, 30 Apr 2026
• 6 sites in 1 country
• Visits and tests: ask the trial team, the registry does not list them

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Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Who the study is looking for

Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (6)

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