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ClinicalTrials.gov public records Last synced Sep 18, 2026, 11:08 PM EDT

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Showing 1–8 of 8 matching trials from the live ClinicalTrials.gov search.
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Conditions
Myasthenia Gravis, MuSK, AChR Myasthenia Gravis
Interventions
Amifampridine Phosphate
Drug
Lead sponsor
Catalyst Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Cleveland, Ohio • Philadelphia, Pennsylvania
Conditions
Myasthenia Gravis, Generalized
Interventions
Amifampridine Phosphate, Placebo Oral Tablet
Drug
Lead sponsor
Catalyst Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Cleveland, Ohio • Philadelphia, Pennsylvania
Conditions
Lambert-Eaton Myasthenic Syndrome
Interventions
Amifampridine Phosphate, Placebo Oral Tablet
Drug
Lead sponsor
Catalyst Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Lambert Eaton Myasthenic Syndrome
Interventions
Amifampridine Phosphate, Placebo
Drug
Lead sponsor
Catalyst Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
6
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Los Angeles, California + 3 more
Conditions
Congenital Myasthenic Syndrome, Lambert-Eaton Myasthenic Syndrome, Nystagmus, Acquired
Interventions
Amifampridine Phosphate
Drug
Lead sponsor
Catalyst Pharmaceuticals, Inc.
Industry
Eligibility
2 Years and older
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Myasthenic Syndromes, Congenital
Interventions
amifampridine phosphate, Placebo
Drug
Lead sponsor
Catalyst Pharmaceuticals, Inc.
Industry
Eligibility
2 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
4
States / cities
Los Angeles, California • Baltimore, Maryland • Boston, Massachusetts + 1 more
Conditions
Botulism, Iatrogenic Botulism
Interventions
Amifampridine
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 80 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Conditions
Vocal Weakness(Post-BOTOX Injection)
Interventions
Amifampridine
Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Augusta, Georgia