Rademikibart IV for Acute Asthma and COPD Exacerbation

A Phase 2, open-label, single-arm trial to evaluate IV rademikibart as an add-on treatment for acute exacerbation in participants with asthma or COPD with type 2 inflammation

Inclusion Criteria - Asthma cohort * Body weight of ≥40 kg and BMI ≤45 kg/m2 at SV1a. * Physician-diagnosed asthma * Currently receiving treatment with low, medium, to high dose ICS in combination with at least 1 additional asthma controller medication. * Must have experienced at least 1 asthma exacerbation requiring the use of systemic corticosteroids. * Participants in a stable condition, must have a historical peripheral blood eosinophil count of ≥250 cells/μL and/or FeNO ≥ 25 ppb. * Current acute asthma exacerbation requiring an urgent healthcare visit for treatment. * Peripheral blood eosinophil count of ≥300 cells/µL as part of the assessment of an index acute asthma exacerbation. * Requires systemic corticosteroid as SoC in the urgent healthcare setting to treat the current acute asthma exacerbation. * FEV1 ≥30% predicted. Exclusion Criteria - Asthma cohort * Regular use of immunosuppressive medication. * Unstable ischemic heart disease, cardiomyopathy, heart failure, uncontrolled hypertension. * Current or former smoker, with a smoking history of ≥5 pack-years if \