Ozmosi | Amifampridine Drug Profile
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Amifampridine

Alternative Names: amifampridine, 4-dap, AMIFAMPRIDINA, ruzurgi, firdapse
Clinical Status: Inactive
Latest Update: 2025-10-09
Latest Update Note: News Article

Product Description

Amifampridine is used to treat Lambert-Eaton myasthenic syndrome (LEMS), a rare autoimmune disease, wherein the immune system attacks the connection between the nerve and muscle (neuromuscular junction) and blocks the ability of the nerve cells to send signals to the muscle cells, leading to muscle weakness of the arms or legs. (Sourced from: https://www.mayoclinic.org/drugs-supplements/amifampridine-oral-route/description/drg-20463409)

Mechanisms of Action: Potassium Channel Blocker

Novel Mechanism: No

Modality: Small Molecule

Route of Administration: Oral

FDA Designation: Orphan Drug - Lambert-Eaton Myasthenic Syndrome *

Approval Status: Approved

Approved Countries: Australia | Austria | Belgium | Canada | Croatia | Czech | Denmark | Estonia | European Medicines Agency | Finland | France | Germany | Greece | Hungary | Iceland | Ireland | Israel | Italy | Latvia | Lithuania | Netherlands | Norway | Poland | Portugal | Slovakia | Slovenia | Spain | Sweden | Switzerland | United Kingdom | United States

Approved Indications: None

Known Adverse Events: None

Company: Catalyst
Company Location: Eastern America
Company CEO: Nassim Usman
Additional Commercial Interests: None

Clinical Description

Map of Global Clinical Trials for Amifampridine

Countries in Clinic: Japan, Unknown Location

Active Clinical Trial Count: 2

Recent & Upcoming Milestones

  • PDUFA target action date of June 4, 2024 for increasing Firdapse's daily dose to 100mg for Lambert-Eaton Myasthenic Syndrome.

Highest Development Phases

Trial ID

Trial

Phase

Trial Status

Disease

Primary Completion Date

Probability of Success

Latest Trial Update Date

Data Updated

jRCT2031220702

jRCT2031220702

P3

Recruiting

Unknown

2024-12-31

jRCT2031210552

jRCT2031210552

P3

Active, not recruiting

Unknown

2024-03-31