New positive donidalorsen data to be presented at 2024 American College of Allergy, Asthma & Immunology (ACAAI) Annual Scientific Meeting

In This Article:

–   Data continue to demonstrate donidalorsen potential to deliver significant and sustained reductions in HAE attacks up to three years with monthly or every two-month dosing

CARLSBAD, Calif., Oct. 3, 2024 /PRNewswire/ -- Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) announced today that it will present new three-year data from the Phase 2 open-label extension (OLE) study as well as additional results from the pivotal Phase 3 OASIS and OASISplus studies of donidalorsen, the company's investigational RNA-targeted prophylactic medicine for hereditary angioedema (HAE). Results will be presented at the 2024 American College of Allergy, Asthma & Immunology (ACAAI) Annual Scientific Meeting in Boston, Massachusetts.

Ionis logo (PRNewsfoto/Ionis Pharmaceuticals, Inc.)
Ionis logo (PRNewsfoto/Ionis Pharmaceuticals, Inc.)

New data at ACAAI demonstrate donidalorsen significantly reduced HAE attacks, translating to high levels of disease control and significant and clinically meaningful improvements in quality-of-life across multiple measures in a vast majority of patients, sustained up to three years. Presentations include:

  • Phase 2 Open-Label Extension of Donidalorsen In Patients with Hereditary Angioedema: A Week 197 Analysis

    • e-Poster Presentation: October 25, 2024 (Monitor 21, Exhibit Hall A)

    • Presenting Author: Michael Manning

  • Impact of Donidalorsen on Patient-Reported Outcomes: Results from the Phase 3 OASIS-HAE Study

    • e-Poster Presentation: October 25, 2024 (Monitor 21, Exhibit Hall A)

    • Presenting Author: Aaron Yarlas

  • Treatment Of Hereditary Angioedema: Safety, Efficacy, and Patient Preference after Switching to Donidalorsen (OASISplus Study)

    • e-Poster Presentation: October 25, 2024 (Monitor 21, Exhibit Hall A)

    • Presenting Author: Danny Cohn

  • Donidalorsen for Hereditary Angioedema: Results from the OASISplus Open-Label Extension Study

    • e-Poster Presentation: October 25, 2024 (Monitor 21, Exhibit Hall A)

    • Presenting Author: Raffi Tachdjian

  • Donidalorsen Exposure-Response Analysis: Hereditary Angioedema Attack Rate versus Plasma Prekallikrein Concentration Relationship

    • e-Poster Presentation: October 25, 2024 (Monitor 19, Exhibit Hall A)

    • Presenting Author: Pratap Singh

  • Drug Patterns, Clinical Outcomes, and Economic Costs among Hereditary Angioedema Patients Initiating Long-Term Prophylaxis

    • e-Poster Presentation: October 25, 2024 (Monitor 19, Exhibit Hall A)

    • Presenting Author: William R. Lumry

Ionis previously reported positive results from the Phase 3 OASIS-HAE and OASISplus studies. Data from both studies were presented at the 2024 European Academy of Allergy and Clinical Immunology (EAACI) Annual Congress in Valencia, Spain and results from OASIS-HAE were published in The New England Journal of Medicine. The company also previously reported positive two-year results from the Phase 2 OLE study last year.