Trial Profile

An Open-Label Extension Study of ISIS 721744 in Patients With Hereditary Angioedema

Status: Completed

Phase of Trial: Phase II

Latest Information Update: 13 Mar 2026

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At a glance

14 Nov 2025 According to Ionis Pharmaceuticals Media Release,based on positive results from the Phase 3 OASIS-HAE and OASISplus studies,the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency has adopted a positive opinion of DAWNZER (donidalorsen) for the routine prevention of recurrent attacks of hereditary angioedema in adults and adolescents (>12 years).The positive opinion is now referred to the European Commission for an approval decision, expected in Q1 2026.
06 Nov 2025 According to Ionis Pharmaceuticals Media Release, data from this study to be presented at the 2025 American College of Allergy, Asthma & Immunology (ACAAI) Annual Scientific Meeting in Orlando, Florida.
06 Nov 2025 Results published in the Media Release

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