NULIBRY (fosdenopterin hydrobromide)
NULIBRY (fosdenopterin) is indicated to reduce the risk of mortality in patients with molybdenum cofactor deficiency (MoCD) Type A. This condition is caused by mutations in the *MOCS1* gene, resulting in a deficiency of cyclic pyranopterin monophosphate (cPMP). As a substrate replacement therapy, NULIBRY provides an exogenous source of cPMP to restore the biosynthetic pathway required for the activation of molybdenum-dependent enzymes.
How NULIBRY Works
NULIBRY works as a substrate replacement therapy for cyclic pyranopterin monophosphate (cPMP). In patients with MoCD Type A, the endogenous synthesis of cPMP is impaired. Once administered, NULIBRY is converted into molybdopterin, which is subsequently converted into molybdenum cofactor. This cofactor is essential for the activation of molybdenum-dependent enzymes, most notably sulfite oxidase (SOX). Activation of SOX allows for the metabolism of neurotoxic sulfites into sulfates, thereby preventing progressive neurological damage and reducing mortality.
Details
- Status
- Prescription
- First Approved
- 2021-02-26
- Patent Cliff
- 2029
- Routes
- INTRAVENOUS
- Dosage Forms
- POWDER
NULIBRY Approval History
What NULIBRY Treats
1 indicationsNULIBRY is approved for 1 conditions since its original approval in 2021. These indications span multiple therapeutic areas including oncology, immunology, and more.
- Molybdenum Cofactor Deficiency
Active Pipeline
Ongoing clinical trials by development phase
Key Completed Trials
Completed studies with published results, ranked by significance
Trial Timeline
Full development history with FDA approval milestones
Understanding FDA Approval Types
| Count | Type | What it means |
|---|---|---|
| - | ORIG | Original approval - drug first enters market |
| - | SUPPL - Efficacy | New indication (new disease/condition approved) |
| - | SUPPL - Labeling | Label text changes (warnings, dosing updates) |
| - | SUPPL - Manufacturing | Production changes (new facility) |
| - | SUPPL - Chemistry | Formulation changes (new dosage strength) |
Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.
NULIBRY FDA Label Details
Indications & Usage
FDA Label (PDF)NULIBRY is indicated for the treatment of Molybdenum Cofactor Deficiency.
NULIBRY Patents & Exclusivity
Patents (1 active)
Exclusivity
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Revenue Insights
- • Quarterly revenue tracking
- • Historical trend analysis
Patent Timeline
- • Cliff: 2029
- • 1 active patents
Trial Analysis
- • Clinical trial tracking
- • Development stage analysis
Competitive Landscape
- • Competitor tracking
- • Same target/indication analysis
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Data Sources
Data sourced from official FDA and NIH databases. Click links to verify on original sources.