Clinical Research Directory

Inclusion Criteria: 1. Male or female 2. Aged 2 to 11 years, inclusive, with body weight ≥ 10th percentile based on age 3. Diagnosed with clinically confirmed C1-INH HAE 4. Experienced ≥ 2 HAE attacks during the 6 months before Screening Exclusion Criteria: 1. Concomitant diagnosis of another form of angioedema, such as idiopathic or acquired angioedema, recurrent angioedema associated with urticaria, or HAE type 3 2. Use of C1-INH products, androgens, antifibrinolytics, approved or future approved medications, or other small molecule medications for routine prophylaxis against HAE attacks within a minimum of 2 weeks before the Treatment Period 3. Participation in another interventional clinical study during the 30 days before the Treatment Period or within 5 half-lives of the final dose of the investigational product administered during the previous interventional study, whichever is longer 4. Having laboratory clinical abnormalities assessed as clinically significant by the investigator in results of hematology or chemistry assessments performed during Screening 5. Currently receiving a therapy not permitted during the study 6. Being pregnant or breastfeeding.