Key Takeaways Ionis posted a smaller-than-expected Q3 loss and a 17% year-over-year revenue increase.Commercial revenue jumped 53% YoY on strong Tryngolza sales and higher Wainua royalties.The company raised its 2025 revenue outlook to $875-$900 million, citing solid drug uptake.Ionis Pharmaceuticals (IONS) reported third-quarter 2025 adjusted loss per share of 61 cents, much narrower than the Zacks Consensus Estimate of a loss of $1.15. In the year-ago period, the company reported an adjusted loss of 72 ce ...

Core Insights - Ionis Pharmaceuticals announced positive topline results from a pivotal phase III study for its investigational RNA-targeted therapy zilganersen, aimed at treating Alexander disease (AxD) [1][4] Group 1: Study Results - The study met its primary endpoint, showing that patients receiving a 50 mg dose of zilganersen achieved a statistically significant 33.3% stabilization in gait speed compared to the control group, measured by the 10-Meter Walk Test (10MWT) [2] - Treatment with zilganersen demonstrated a favorable safety and tolerability profile, with consistent benefits observed across key secondary endpoints, indicating evidence of slowed disease progression [3][9] Group 2: Regulatory and Market Implications - Ionis plans to submit a regulatory filing with the FDA for zilganersen in Q1 2026, marking it as the first investigational medicine to show a positive disease-modifying impact in AxD [6][4] - If approved, zilganersen will join Ionis' portfolio as the third wholly-owned drug, alongside Tryngolza and Dawnzera, which were approved in the last 12 months [7] Group 3: Financial Performance and Strategy - Year-to-date, Ionis shares have increased nearly 76%, significantly outperforming the industry growth of 12% [8] - Ionis has established collaborations with major pharmaceutical companies, providing funds through license fees and milestone payments to support the development of its wholly-owned pipeline [10] - The company earns commercial revenues from royalties on Spinraza and Qalsody, with ongoing partnerships for other drug developments [11][12]

Core Insights - Ionis Pharmaceuticals' shares surged 35% following positive results from late-stage studies CORE and CORE2 for its drug Tryngolza (olezarsen) targeting severe hypertriglyceridemia (sHTG) [1][12] - Both studies achieved their primary endpoint, demonstrating significant placebo-adjusted reductions in triglyceride (TG) levels [2][3] Study Results - At the 80 mg dose, Tryngolza resulted in TG reductions of 72% in CORE and 55% in CORE2 after six months; at the 50 mg dose, reductions were 63% in CORE and 49% in CORE2 [3] - The treatment also significantly reduced acute pancreatitis (AP) events by 85% compared to placebo over 12 months [5][12] Regulatory and Market Potential - Tryngolza was previously approved by the FDA for familial chylomicronemia syndrome (FCS), marking it as the first approved treatment for this condition [6] - Ionis plans to seek FDA label expansion for Tryngolza to include sHTG, targeting a much larger market of approximately 3 million affected individuals compared to 3,000 with FCS [10][8] Collaborations and Revenue Streams - Ionis has partnerships with major pharmaceutical companies like AstraZeneca, Biogen, GSK, and Novartis, providing funds through license fees and milestone payments [14] - The company earns commercial revenues from royalties on Spinraza, which treats spinal muscular atrophy, and is also involved in marketing Qalsody for amyotrophic lateral sclerosis [15] Future Developments - Ionis is expanding its portfolio with several wholly-owned candidates in late-stage studies, including drugs for Alexander's disease, ALS, and Angelman syndrome, with expected commercial launches in the next three years [19]