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ClinicalTrials.gov public records Last synced Sep 27, 2026, 4:56 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: 4-aminopyridine Clear all
Completed Phase 2 Interventional Results available

Study and Treatment of Visual Dysfunction and Motor Fatigue in Multiple Sclerosis

NCT02391961
View directory record Official record
Conditions
Multiple Sclerosis, Internuclear Ophthalmoplegia, Fatigue
Interventions
Dalfampridine, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 3, 2020 · Synced Sep 27, 2026, 4:56 PM EDT
Active, not recruiting Not applicable Interventional

Genetic Testing in Screening Patients With Stage IB-IIIA Non-small Cell Lung Cancer That Has Been or Will Be Removed by Surgery (The ALCHEMIST Screening Trial)

NCT02194738
View directory record Official record
Conditions
Stage IB Lung Non-Small Cell Carcinoma AJCC v7, Stage II Lung Non-Small Cell Cancer AJCC v7, Stage IIA Lung Cancer AJCC v8, Stage IIB Lung Cancer AJCC v8, Stage IIIA Lung Cancer AJCC v8, Stage IIIA Lung Non-Small Cell Cancer AJCC v7, Stage IIIB Lung Cancer AJCC v8
Interventions
Biospecimen Collection, Carboplatin, Cisplatin, Clinical Observation, Computed Tomography, Crizotinib, Cytology Specimen Collection Procedure, Echocardiography Test, Erlotinib, Gemcitabine Hydrochloride, Nivolumab, Paclitaxel, Pembrolizumab, Pemetrexed, Pemetrexed Disodium, Placebo Administration, Positron Emission Tomography
Procedure · Drug · Other + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
7,458 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2027
U.S. locations
1655
States / cities
Birmingham, Alabama • Daphne, Alabama • Mobile, Alabama + 1013 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 2 Interventional Results available

Effectiveness of 3,4-Diaminopyridine in Lambert-Eaton Myasthenic Syndrome

NCT01511978
View directory record Official record
Conditions
Lambert-Eaton Myasthenic Syndrome, Eaton-Lambert Myasthenic Syndrome
Interventions
Continuous 3,4-DAP, Taper 3,4-DAP to Placebo
Drug
Lead sponsor
Jacobus Pharmaceutical
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
7
States / cities
Sacramento, California • Indianapolis, Indiana • Durham, North Carolina + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2017 · Synced Sep 27, 2026, 4:56 PM EDT
Recruiting Phase 1 Interventional

Preoperative Imatinib and Fampridine in KIT Mutant Gastrointestinal Stromal Tumor

NCT07171203
View directory record Official record
Conditions
Gastrointestinal Stromal Tumors
Interventions
Imatinib, Fampridine
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Sep 27, 2026, 4:56 PM EDT
Withdrawn Phase 2 Interventional

4-Aminopyridine in Episodic Ataxia Type 2

NCT01543750
View directory record Official record
Conditions
Episodic Ataxia Type 2
Interventions
4-Aminopyridine, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
3
States / cities
Los Angeles, California • Tampa, Florida • Rochester, New York
Source: ClinicalTrials.gov public record
Updated Nov 15, 2020 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 2 Interventional Results available

A Phase 2b Study of Dalfampridine 10mg Extended Release Tablet in Subjects With Chronic Deficits After Ischemic Stroke

NCT01605825
View directory record Official record
Conditions
Ischemic Stroke
Interventions
placebo/dalfampridine-ER, dalfampridine-ER/placebo
Drug
Lead sponsor
Acorda Therapeutics
Industry
Eligibility
18 Years to 85 Years
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
20
States / cities
Birmingham, Alabama • La Jolla, California • Newport Beach, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2016 · Synced Sep 27, 2026, 4:56 PM EDT
No Longer Available No phase listed Expanded access

Treatment of Lambert-Eaton Myasthenic Syndrome (LEMS) With 3, 4 DAP

NCT01378546
View directory record Official record
Conditions
Lambert Eaton Myasthenic Syndrome (LEMS)
Interventions
3,4-diaminopyridine
Drug
Lead sponsor
Louis H. Weimer, MD
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2005
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 17, 2013 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Effects of Dalfampridine on Cognition in Multiple Sclerosis

NCT02006160
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
dalfampridine, placebo
Drug
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years to 60 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Sep 30, 2020 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 3 Interventional Results available

Study of Fampridine-ER Tablets in Patients With Multiple Sclerosis

NCT01328379
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Dalfampridine-ER 5mg, Dalfampridine-ER 10mg, Placebo
Drug · Other
Lead sponsor
Acorda Therapeutics
Industry
Eligibility
18 Years to 70 Years
Enrollment
430 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
70
States / cities
Cullman, Alabama • Phoenix, Arizona • Sun City, Arizona + 59 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2013 · Synced Sep 27, 2026, 4:56 PM EDT
Approved For Marketing No phase listed Expanded access

Expanded Access Study Amifampridine Phosphate in Lambert-Eaton Myasthenic Syndrome (LEMS),Congenital Myasthenic Syndrome

NCT02189720
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 25, 2025 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Ampyra for Optic Neuritis in Multiple Sclerosis

NCT01337986
View directory record Official record
Conditions
Multiple Sclerosis, Optic Neuritis
Interventions
Dalfampridine/Placebo, Placebo/Dalfampridine
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 29, 2020 · Synced Sep 27, 2026, 4:56 PM EDT
Terminated Phase 3 Interventional Results available

Study to Evaluate the Long-Term Safety, Tolerability and Efficacy of Dalfampridine.

NCT02422940
View directory record Official record
Conditions
Post-ischemic Stroke
Interventions
dalfampridine-ER 7.5 mg, dalfampridine-ER 10 mg
Drug
Lead sponsor
Acorda Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
294 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
62
States / cities
Gilbert, Arizona • Berkeley, California • Carlsbad, California + 54 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2019 · Synced Sep 27, 2026, 4:56 PM EDT
Approved For Marketing No phase listed Expanded access

3,4-Diaminopyridine Use in Lambert-Eaton Myasthenic Syndrome(LEMS) and Congenital Myasthenic Syndromes (CMS)

NCT00872950
View directory record Official record
Conditions
Lambert-Eaton Myasthenic Syndrome, Congenital Myasthenic Syndrome
Interventions
3,4-DIAMINOPYRIDINE
Drug
Lead sponsor
Lahey Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Burlington, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 10, 2022 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 3 Interventional Results available

Amifampridine Phosphate for the Treatment of Congenital Myasthenic Syndromes

NCT02562066
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 1, 2021 · Synced Sep 27, 2026, 4:56 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

A Single Dose Pharmaco-Diagnostic for Peripheral Nerve Continuity After Trauma

NCT04026568
View directory record Official record
Conditions
Nerve Injury
Interventions
4-Aminopyridine, Placebo oral tablet
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 17, 2022 · Synced Sep 27, 2026, 4:56 PM EDT
Recruiting Phase 1Phase 2 Interventional

Double Dose 4-AP on Functional Recovery After Spinal Cord Injury

NCT06853015
View directory record Official record
Conditions
SCI - Spinal Cord Injury
Interventions
Dalfampridine, Placebo, STDP stimulation, Exercise training
Drug · Other · Behavioral
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 85 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 27, 2026, 4:56 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Pharmacokinetics, Pharmacodynamics, and Safety Profile of Understudied Drugs Administered to Children Per Standard of Care (POPS)

NCT04278404
View directory record Official record
Conditions
Coronavirus Infection (COVID-19), Pulmonary Arterial Hypertension, Urinary Tract Infections in Children, Hypertension, Pain, Hyperphosphatemia, Primary Hyperaldosteronism, Edema, Hypokalemia, Heart Failure, Hemophilia, Menorrhagia, Insomnia, Pneumonia, Skin Infection, Arrythmia, Asthma in Children, Bronchopulmonary Dysplasia, Adrenal Insufficiency, Fibrinolysis; Hemorrhage, Attention Deficit Hyperactivity Disorder, Multisystem Inflammatory Syndrome in Children (MIS-C), Kawasaki Disease, Coagulation Disorder, Down Syndrome
Interventions
The POP02 study is collecting bodily fluid samples (i.e., whole blood, effluent samples) of children prescribed the following drugs of interest per standard of care:
Drug
Lead sponsor
Duke University
Other
Eligibility
0 Years to 20 Years
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
49
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Los Angeles, California + 40 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 2 Interventional

Firdapse for Post-BOTOX Vocal Weakness

NCT05123053
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Estimation Of Effect Of Rifampin On Pharmacokinetics Of Crizotinib In Healthy Volunteers

NCT01147055
View directory record Official record
Conditions
Healthy
Interventions
crizotinib, rifampin
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 23, 2011 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 1Phase 2 Interventional Results available

A Randomized Trial to Evaluate Ampyra for Gait Impairment in Parkinson's Disease

NCT01491022
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Ampyra first, then Placebo, placebo first, then Ampyra
Drug
Lead sponsor
University of Miami
Other
Eligibility
45 Years to 80 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 1, 2018 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 1 Interventional

Combination Checkpoint Inhibitor Plus Erlotinib or Crizotinib for EGFR or ALK Mutated Stage IV Non-small Cell Lung Cancer

NCT01998126
View directory record Official record
Conditions
Non-small Cell Lung Cancer
Interventions
Ipilimumab, Erlotinib, Crizotinib, Nivolumab
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 1, 2018 · Synced Sep 27, 2026, 4:56 PM EDT
Active, not recruiting Phase 3 Interventional Results available

A Study Of Lorlatinib Versus Crizotinib In First Line Treatment Of Patients With ALK-Positive NSCLC

NCT03052608
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
Lorlatinib, Crizotinib
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
296 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
34
States / cities
Altamonte Springs, Florida • Brandon, Florida • Clearwater, Florida + 23 more
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced Sep 27, 2026, 4:56 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Dalfampridine (4-AP) on Genioglossus Muscle Activity in Healthy Adults

NCT02656160
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Placebo, Dalfampridine
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Sep 27, 2026, 4:56 PM EDT