How many drugs treat Eaton-Lambert syndrome?

Drug Landscape tracks 2 marketed treatments for Eaton-Lambert syndrome (deduplicated by molecule). 0 Phase 3 candidates and 0 Phase 2 candidates are in the pipeline.

How do I subscribe to ongoing alerts?

Subscribe to /feed/disease/eaton-lambert-syndrome.xml in Feedly / Inoreader. Every regulatory action, PDUFA date, or trial completion in this treatment area lands in your feed automatically.

Last reviewed 2026-06-10 · How we verify

Eaton-Lambert syndrome — Treatment Landscape & Competitive Intelligence

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Eaton-Lambert syndrome (disease) competitive landscape: 2 marketed treatments tracked, 0 Phase 3 candidates, 0 Phase 2 candidates. Recent regulatory actions and upcoming PDUFA dates across the entire treatment set.

2 marketed 0 Phase 3 0 Phase 2 Live · 30-min refresh

Marketed treatment landscape

Approved drugs treating Eaton-Lambert syndrome, deduplicated by molecule. See the full disease page for line-of-therapy detail.

Drug	Generic	Sponsor	Class	Target	Line of therapy	First approval
Firdapse	AMIFAMPRIDINE	Catalyst Pharms	Potassium Channel Blocker	Voltage-gated potassium channel		2018-01-01
Guanidin	GUANIDINE	Merck & Co.	Acetylcholine Releasing Agent	Voltage-gated potassium channel		1939-01-01

Phase 3 pipeline

No Phase 3 pipeline candidates tracked.

Phase 2 pipeline

No Phase 2 pipeline candidates tracked.

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this treatment set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this treatment set.

Sponsor landscape

Catalyst Pharms · 1 drug in Eaton-Lambert syndrome
Merck & Co. · 1 drug in Eaton-Lambert syndrome

Subscribe to ongoing alerts

Every new regulatory action, PDUFA date, or trial completion in Eaton-Lambert syndrome:

Cite this brief

Drug Landscape (2026). Eaton-Lambert syndrome — Treatment Landscape & Competitive Intelligence Brief. https://druglandscape.com/ci/disease/eaton-lambert-syndrome. Accessed 2026-06-10.

Eaton-Lambert syndrome full disease profile — treatment pathway, diagnostics, guidelines
Browse all CI briefs
Build a custom feed

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing