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Monopar Therapeutics Receives FDA Rare Pediatric Disease Designation for ALXN1840 for the Treatment of Wilson Disease

$MNPRPress releaseJun 30, 2026, 8:00 AM ETRead the release

The FDA granted Rare Pediatric Disease designation to ALXN1840 for the treatment of Wilson disease, providing Monopar with the potential to receive a Priority Review Voucher upon future NDA approval. ALXN1840 is a late-stage candidate that previously met its primary endpoint in a Phase 3 pivotal trial, demonstrating significant copper mobilization compared to standard of care over 48 weeks.

Key figures

Drug Name
ALXN1840 (tiomolibdate choline, TMC)
Phase Of Trial
Phase 3
Patient count
266
Patient years
645
Incidence rate
1 in 30,000
Trial duration weeks
48

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