A Study of Icatibant in Patients With Acute Attacks of Hereditary Angioedema (FAST-3)

Inclusion Criteria: Each patient must meet the following criteria to be enrolled in this study.

1. The patient is ≥18 years old at the time of informed consent.
2. The patient has a documented diagnosis of HAE type I or II. The diagnosis will beconfirmed either by documented decreased C4 levels and/or immunogenic or functionalC1-INH deficiency results (<50% of normal levels) consistent with HAE types I and IIor by medical history.
3. The current HAE attack must be in the cutaneous, abdominal and/or laryngeal (inclusiveof laryngeal and pharyngeal) areas.
4. Cutaneous or abdominal HAE attacks must be moderate to very severe as determined byinvestigator global assessment at pre-treatment assessments
5. The patient must report at least 1 VAS score ≥ 30mm
6. The patient commences treatment within 6 hours of the attack becoming at least mild (laryngeal) or moderate (non-laryngeal) in severity, but not more than 12 hours afterthe onset of the attack.
7. Women of childbearing potential must have a negative urine pregnancy test and must useappropriate methods to prevent pregnancy during their participation in the study.

Exclusion Criteria: Patients who meet any of the following criteria will be excluded from the study.

1. The patient has a diagnosis of angioedema other than HAE type I or II.
2. The patient has received previous treatment with icatibant.
3. The patient has participated in a clinical trial and has received treatment withanother investigational medicinal product within the past 30 days.
4. The patient has received treatment with any pain medication since the onset of thecurrent angioedema attack.
5. The patient has received replacement therapy (fresh frozen plasma [FFP], C1-INHproducts) less than 5 days (120 hours) from the onset of the current angioedemaattack.
6. The patient is receiving treatment with angiotensin converting enzyme (ACE)inhibitors.
7. Evidence of coronary artery disease based on medical history or screening examinationin particular unstable angina pectoris or severe coronary heart disease;
8. The patient has a serious concomitant illness or condition that, in the opinion of theInvestigator, would be a contraindication for participation in the trial.
9. The patient is pregnant or breastfeeding.