Updates reveal long-term efficacy data and safety issues in gene therapy, suggesting regulatory caution moving forward.
Over the past month, updates in the cell and gene therapy sector were defined by the release of longer-term efficacy data alongside continued regulatory scrutiny of safety.Sarepta reported 3-year controlled Phase 3 functional outcomes for ELEVIDYS, while Ultragenyx extended UX111 follow-up to 8.5 years, reinforcing the industry’s pivot toward demonstrating durability with clinically meaningful endpoints rather than short-term biomarker wins alone. Regulatory actions underscored that durability must be matched by confidence in safety surveillance: the US FDA lifted the hold on Intellia’s MAGNITUDE-2 with enhanced liver monitoring but placed Regenxbio’s RGX-111 and RGX-121 on hold after a tumor finding in a long-dosed patient. In parallel, ‘getting therapies into systems’ showed up in tangible examples; Zemcelpro® secured Germany’s NUB Status 1 for interim reimbursement, and the financing and public-market moves by Orca Bio and Innovacell highlighted how late-stage developers are positioning for launch execution.Innovacell targeted $92M in Tokyo IPO to advance Phase 3 regenerative program; Market Trends.
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Abigail Pinchbeck (2026) studied this question.
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