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Regenxbio gene therapy refiling plan derailed by FDA hold

Published

24 August 2026

Topic

opportunities

Sectors

Biotech

Geography

United States

Source

Read at fiercebiotech.com

Verified

Fusion42 · 25 August 2026 · Fusion42 review

The FDA has placed a clinical hold on Regenxbio's gene therapy RGX-121 for Hunter syndrome due to asymptomatic spine MRI findings, delaying the company's plans to refile for approval.

This Wire brief sits within Fusion42's coverage of Biotech, and 6 sources have reported it.

◆ The Wire takeaway

You face a stalled US gene therapy approval that highlights risks in rare disease trials. Look for alternative pathways or international markets to protect your pipeline timing.

Coverage

6 sources · 24 Aug 2026

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Topics

Biotechfda-holdgene-therapyhunter-syndromeclinical-trialsregenxbio