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Ultragenyx Phase 3 Aspire Trial Of Apazurersen Misses Key Goals In Angelman Syndrome

Published

3 September 2026

Topic

opportunities

Sectors

Biotech

Geography

United States

Source

Read at rttnews.com

Verified

Fusion42 · 3 September 2026 · Fusion42 review

Ultragenyx reported that its Phase 3 Aspire trial of Apazurersen for Angelman Syndrome did not meet key efficacy goals, resulting in a sharp decline in its stock price.

This Wire brief sits within Fusion42's coverage of Biotech, and 2 sources have reported it.

◆ The Wire takeaway

Your biotech startup focusing on neurological disorders must revise drug pipelines as investor appetite tightens after critical trial failures; Ultragenyx’s setback signals tougher market conditions this quarter.

Coverage

2 sources · 3 Sep 2026

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Topics

Biotechclinical-trialbiotechangelman-syndromedrug-developmentphase-3trial-failure