TheraRadar
Data updated: May 26, 2026

BANZEL (rufinamide)

Trial Activity: Declining
CNS Approved 2008-11-14

Banzel (rufinamide) is an antiepileptic medication indicated for the adjunctive treatment of seizures. It is used specifically for patients diagnosed with Lennox-Gastaut Syndrome, a severe form of epilepsy. The medication is approved for use in adults as well as pediatric patients one year of age and older.

Source: FDA Label • EISAI INC

How BANZEL Works

The precise mechanism by which rufinamide exerts its antiepileptic effect is unknown. Research suggests the drug functions by modulating sodium channel activity, specifically by prolonging the inactive state of the channel. This action slows the recovery of sodium channels and limits the sustained repetitive firing of action potentials in the neurons.

Development Insights

Daiichi Sankyo conducting 1 trials (20%)
5 indications explored (Moderate)
lennox-gastaut syndrome (2 trials)
healthy subjects (1 trials)
peripheral nerve injuries (1 trials)
3
Indications
--
Phase 3 Trials
1
Priority Reviews
17
Years on Market

Details

Status
Prescription
First Approved
2008-11-14
Routes
ORAL
Dosage Forms
SUSPENSION, TABLET

Companies

Active Ingredient: RUFINAMIDE

BANZEL Approval History

2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
38 FDA actions from 2008 to 2023 · 1 indication expansions
May 2023 SUPPL
Mfg · Manufacturing (CMC)
Nov 2019 SUPPL
Label · Labeling
Jun 2016 SUPPL
Mfg · Manufacturing (CMC)

What BANZEL Treats

2 indications

BANZEL is approved for 2 conditions since its original approval in 2008. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Lennox-Gastaut Syndrome
  • Seizures
Source: FDA Label

BANZEL Competitive Set

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

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Clinical Trial Registry

5 trials
Trial Sponsor ID Phase Status Title
NCT06740825 AC220-164 Ph 1 completed Study to Assess the Effect of a CYP3A Weak Inducer Rufinamide on Quizartinib Pharmacokinetics in Healthy Subjects
NCT01405053 results posted E2080-G000-303 Ph 3 completed Study of Rufinamide in Pediatric Subjects 1 to Less Than 4 Years of Age With Lennox-Gastaut Syndrome Inadequately Controlled With Other Anti-epileptic Drugs
NCT01151540 results posted E2080-J081-305 Ph 3 completed A Long Term Extension Study of E2080 in Lennox-Gastaut Patients
NCT02095899 RUFPTPS 2013-253 Ph 2 withdrawn Effect of Rufinamide on Chronic Postthoracotomy Pain Syndrome
NCT02332174 TJXH-Rufi Ph 1 completed Pharmacokinetics and Tolerability of Rufinamide in Healthy Chinese Subjects
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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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.

BANZEL FDA Label Details

Indications & Usage

FDA Label (PDF)

BANZEL is indicated for the treatment of Lennox-Gastaut Syndrome; Seizures.

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.

How We Calculate These Metrics

Trial Activity Stage

Measures the current development activity pattern based on trial phases, status, and trends. Important: This measures R&D activity, not commercial lifecycle.

Trial statuses: "Active" means recruiting or ongoing. "Completed" means reached planned endpoint. "Terminated" means stopped early—often due to safety, efficacy, or business reasons.

  • Growth: High proportion of early-phase trials (Phase 1/2), active development
  • Expansion: Significant Phase 3 activity, approaching or pursuing approvals
  • Mature: Substantial Phase 4 post-marketing studies
  • Stable: Mixed phase distribution, steady development
  • Declining: Low active trial ratio, reduced R&D investment