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BioMarin Enters Into Exclusive Worldwide License Agreement With GC Biopharma and Hanmi Pharm for Investigational Next-Generation Enzyme Replacement Therapy, Adding a Second Potential Treatment for Fabry Disease

$BMRNPress releaseOct 29, 2026, 8:45 AM ETRead the release

BioMarin licensed worldwide rights (excluding Korea) to HM15421/GC1134A, a long-acting subcutaneous enzyme replacement therapy for Fabry disease, from GC Biopharma and Hanmi Pharm. BioMarin will pay $70 million upfront with up to $405 million more in development and commercial milestones plus tiered royalties; the candidate is in a Phase 1/2 trial and holds FDA Orphan Drug Designation.

Key figures

Drug Name
HM15421/GC1134A
Phase Of Trial
Phase 1/2
Upfront payment
70000000
Potential milestones
405000000

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