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ApprovalAug 19, 202669 days ago

FDA approves Pasatru (garetosmab) for fibrodysplasia ossificans progressiva

The FDA approved Regeneron’s Pasatru (garetosmab-grts) for Fibrodysplasia ossificans progressiva in adults on Aug 19, 2026. The company can now sell it in that market.

Plain-English summary generated from this entry’s own fields (drug, condition, stage, date). Glossary

DetailsRegulatory approval
Company
Regeneron Pharmaceuticals, Inc. REGN
Drug
Pasatru (garetosmab-grts)
For
Fibrodysplasia ossificans progressiva in adults
Stage
Phase 3 · the last stage before a drug can be approved
When
Aug 19, 2026
Source note
FDA approved Pasatru (garetosmab-grts), an anti-Activin A antibody, to reduce new heterotopic ossification lesions and clinician-assessed flare-ups in adults with FOP, based on the Phase 3 OPTIMA trial showing roughly 90-94% reductions in new HO lesions at 56 weeks.
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Regeneron Pharmaceuticals, Inc.
2 upcoming · 5 past catalysts
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FDA decisionREGNRegeneronNov 2026

The FDA is expected to decide in Nov 2026 (no exact date yet) whether to approve Regeneron’s cemdisiran (C5 siRNA) for Generalized myasthenia gravis (anti-AChR antibody-positive). Approval clears it for sale in the US; a rejection usually arrives as a letter listing what has to be fixed first.

More details
Entry
PDUFA target action date for cemdisiran in generalized myasthenia gravis · FDA decision due (PDUFA date)
Drug
cemdisiran (C5 siRNA)
For
Generalized myasthenia gravis (anti-AChR antibody-positive)
Stage
Phase 3 · the last stage before a drug can be approved
When
Nov 2026 · the company gave a window, not a day
Source note
FDA accepted the NDA under Priority Review (priority review voucher used) with a target action date in November 2026; announced June 22, 2026. Would be the first siRNA approved in gMG, dosed subcutaneously every 12 weeks.
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Plain-English summary generated from this entry’s own fields (drug, condition, stage, date). Glossary · Open this catalyst’s page