A Study of Lanadelumab in Teenagers and Adults With Hereditary Angioedema (HAE)

The main aim of this study is to compare the HAE attacks (both total and those requiring on-demand treatment) in the 12 months before and up to 24 months after initiation of treatment with lanadelumab. This study is conducted in the United Kingdom where participants were treated or about to be treated with landelumab according to their routine practice at hospitals. Data will be directly collected from participants via study diaries, questionnaires, their medical records, and study doctors treating them. Participants will be contacted every 3 months during study participation (via phone).