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Zilurgisertib reduces HO volume in children aged 6 to 11 with FOP
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Fusion42 · 26 October 2026 · Fusion42 review
Zilurgisertib significantly reduces heterotopic ossification (HO) volume in children aged 6 to 11 with fibrodysplasia ossificans progressiva (FOP) after 24 weeks, with no new HO lesions observed. The drug, already FDA-approved for patients aged 12 and older, is planned for supplemental approval in younger children by mid-2027.
This Wire brief sits within Fusion42's coverage of Biotech, and 2 sources have reported it.
◆ ◆ The Wire takeaway
You now have a clear precedent for treating children with FOP early to slow disease progression before severe damage. This opens direct access to a narrow but critical market where treatment options are limited and early intervention changes outcomes.
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2 sources · 26 Oct 2026
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