TheraRadar
Data updated: May 26, 2026

VIGAFYDE (vigabatrin)

CNS Approved 2024-06-17

VIGAFYDE is an anti-epileptic medication used for infants and young children between 1 month and 2 years of age who have infantile spasms. It serves as a single-drug therapy in cases where the clinical benefits are determined to outweigh the potential risk of vision loss. This medication helps patients in this specific age group manage their seizure activity.

Source: FDA Label • PYROS PHARMS • Anti-epileptic Agent

How VIGAFYDE Works

This medication works by permanently blocking GABA-transaminase, the enzyme responsible for breaking down the inhibitory neurotransmitter GABA. By inhibiting this process, the drug increases GABA levels within the central nervous system to produce its anti-seizure effects. The duration of this effect depends on how quickly the body can create new enzymes rather than how long the drug remains in the bloodstream.

2
Indications
--
Phase 3 Trials
1
Years on Market

Details

Status
Prescription
First Approved
2024-06-17
Patent Cliff
2043

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Routes
ORAL
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Active Ingredient: VIGABATRIN

VIGAFYDE Approval History

2025
2026
Original
New Indication
New Form
Label Update
5 FDA actions from 2024 to 2026 · 1 indication expansions
Mar 2026 SUPPL
Update · REMS
Sep 2025 SUPPL
Efficacy
Sep 2024 SUPPL
Update · REMS

What VIGAFYDE Treats

1 indications

VIGAFYDE is approved for 1 conditions since its original approval in 2024. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Infantile Spasms
Source: FDA Label

VIGAFYDE Boxed Warning

PERMANENT VISION LOSS VIGAFYDE can cause permanent bilateral concentric visual field constriction, including tunnel vision that can result in disability. In some cases, VIGAFYDE also can damage the central retina and may decrease visual acuity [see Warnings and Precautions ( 5.1 )]. The onset of vision loss from VIGAFYDE is unpredictable, and can occur within weeks of starting treatment or sooner, or at any time after starting treatment, even after months or years. Symptoms of vision loss from V...

VIGAFYDE Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

Indication competitors

1

Same indication, different mechanism — what else might this patient receive?

Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to VIGAFYDE

3 of 5

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

H.P. ACTHAR GEL
REPOSITORY CORTICOTROPIN
1 shared
QUESTCOR PHARMA
Shared indications:
Infantile Spasms
SABRIL
VIGABATRIN
1 shared
LUNDBECK PHARMS LLC
Shared indications:
Infantile Spasms
VIGABATRIN
VIGABATRIN
1 shared
AMNEAL PHARMS
Shared indications:
Infantile Spasms
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Clinical Trial Registry

11 trials
Trial Sponsor ID Phase Status Title
NCT04321395 results posted 202006177 Ph 2 completed Vigabatrin and Insulin Sensitivity
NCT03421496 results posted INS011-16-082 Ph 3 terminated A Study to Assess Cannabidiol Oral Solution With Vigabatrin as Initial Therapy in Participants With Infantile Spasms
NCT03347526 17-0222 Ph 3 suspended A Novel Approach to Infantile Spasms
NCT02299115 PREDVGB 1000045463 Ph 3 withdrawn Prednisolone Versus Vigabatrin in the First-line Treatment of Infantile Spasms
NCT01335867 VGB results posted 812864 P50DA012756 Ph 2 terminated Vigabatrin for Cocaine and Alcohol Dependence
NCT01585207 results posted GCO 12-0964 11-01864 Ph 1, Ph 2 completed Proof-of-Concept Safety Study of CPP-109 (Vigabatrin) for Treatment Refractory Tourette's Disorder
NCT01266291 STARS results posted 811542 Ph 4 terminated Sabril for Complex Partial Seizures in Adult Tolerability Study (TS) Patients
NCT00626834 OV-1014 Ph 1 completed Vigabatrin Ph 1 Cocaine Interaction Study
NCT01281202 results posted CPP-01005/CS# 1030 TRANSFERRED Y1-DA4006 Ph 2, Ph 3 completed Vigabatrin for the Treatment of Cocaine Dependency
NCT00611130 results posted CPP-01004 Ph 2 completed Vigabatrin for Treatment of Cocaine Dependence
NCT01413711 13453A Ph 4 withdrawn An Open-Label, Single and Multiple Oral Dose Pharmacokinetic Study of Vigabatrin in Infants With Infantile Spasms
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Active Pipeline

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Key Completed Trials

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Trial Timeline

Full development history with FDA approval milestones

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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.

VIGAFYDE FDA Label Details

Indications & Usage

FDA Label (PDF)

VIGAFYDE is indicated for the treatment of Infantile Spasms.

⚠️ BOXED WARNING

WARNING: PERMANENT VISION LOSS VIGAFYDE can cause permanent bilateral concentric visual field constriction, including tunnel vision that can result in disability. In some cases, VIGAFYDE also can damage the central retina and may decrease visual acuity [see Warnings and Precautions ( 5.1 )]. The ons...

View full patent landscape →
2 OB patents · 2 families · 18 international docs across 3 countries

VIGAFYDE Patents & Exclusivity

Latest Patent: Jun 2043

Patents (3 active)

US12576054 Expires Jun 8, 2043
US12290499 Expires Oct 17, 2042
US12016857 Expires Aug 16, 2039
Source: FDA Orange Book

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Patent Timeline

  • Cliff: 2043
  • 3 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 5 similar drugs
  • 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.