CARLSBAD, Calif., Jan. 22, 2024 /PRNewswire/ -- Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) today announced positive topline results for the Phase 3 OASIS-HAE study of donidalorsen in people with hereditary angioedema (HAE). The trial met its primary endpoint of reduction in rate of angioedema attacks in patients treated with donidalorsen (80mg) via subcutaneous injection dosed every 4 weeks (Q4W) (p