Drugs / Dalfampridine
last change Jul 2026 re-read 2 minutes ago

Dalfampridine

Small molecule

Developed for
multiple sclerosis · spinal cord injury · primary progressive multiple sclerosis · secondary progressive multiple sclerosis · traumatic neuropathy · episodic ataxia type 2 · gastrointestinal stromal tumor · Guillain-Barre syndrome
+24 more · hereditary spastic paraplegia · idiopathic acute transverse myelitis · internuclear ophthalmoplegia · Machado-Joseph disease · migraine disorder · motor neuron disorder · neuromyelitis optica · non-arteritic anterior ischemic optic neuropathy · optic neuritis · Parkinson disease · post-COVID-19 disorder · progressive relapsing multiple sclerosis · prostate disorder · relapsing-remitting multiple sclerosis · spinocerebellar ataxia 27B, late-onset · spinocerebellar ataxia type 1 · spinocerebellar ataxia type 2 · spinocerebellar ataxia type 6 · transverse myelitis · carpal tunnel syndrome · cerebral palsy · ischemic stroke · major depressive disorder · spinal muscular atrophy
Investigated by
Acorda Therapeutics · Biogen · Clinical Trial Unit, University Hospital Basel, Switzerland · University Hospital, Basel, Switzerland · University of Basel · National Institute of Neurological Disorders and Stroke (NINDS)
+42 more · Region of Southern Denmark · Shirley Ryan AbilityLab · University of Rochester · University of Southern Denmark · Assistance Publique - Hôpitaux de Paris · Boris Quednow · Centre Hospitalier Universitaire de Besancon · Clinique Neuro-Outaouais · CogState Ltd. · Courtney Casserly · D'Youville College · European University of Lefke · FDA Office of Orphan Products Development · Fonden for scleroseramte på Fyn · Fonden til Lægevidenskabens Fremme · Hospital for Special Surgery, New York · John Elfar · Johns Hopkins University · Kessler Foundation · London Health Sciences Centre · Lounkær Fonden · Massachusetts Eye and Ear Infirmary · Milton S. Hershey Medical Center · National Institute on Disability, Independent Living, and Rehabilitation Research · Neuro-Ophthalmologic Associates, PC · Odense University Hospital · Oregon Health and Science University · Overlægeråds forskningsfond · Sygehus Lillebaelt · TH MAIGAARDS EFTF. FRU LILY BENTHINE LUNDS FOND AF 1. JUNI 1978 · The Augustinus Foundation, Denmark. · The Danish Multiple Sclerosis Society · University College Dublin · University at Buffalo · University of Arizona · University of California, Los Angeles · University of California, San Diego · University of Florida · University of Miami · University of South Florida · University of Zurich · VA Office of Research and Development

Regulatory milestones approvals, filings & regulatory actions · 2 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Approved EU (EMA) Fampyra 2011-07-20 europa.eu
Approved US (FDA) AMPYRA 2010-01-22 fda.gov

Trials 43 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 02 trials
Phase 0 NCT05447676 Jun 2022 → Jun 2024 spinal cord injury Shirley Ryan AbilityLab Completed No outcome recorded
Phase 0 NCT04148781 Mar 2022 → Dec 2023 optic neuritis Courtney Casserly Unknown No outcome recorded
Phase 13 trials
Phase 1 NCT07171203 May 2026 → Jul 2030 expected gastrointestinal stromal tumor University of California, San Diego Recruiting No outcome recorded
Phase 1 NCT02868567 Mar 2016 → Jul 2026 overdue motor neuron disorder Hospital for Special Surgery, New York Active not recruiting No outcome recorded
Phase 1 NCT01215084 Oct → Nov 2010 Biogen Completed No outcome recorded
Phase 1/22 trials
Phase 1/2 NCT06853015 Feb 2025 → Mar 2026 overdue spinal cord injury Shirley Ryan AbilityLab Recruiting No outcome recorded
Phase 1/2 NCT01491022 Jul 2012 → Jul 2014 Parkinson disease University of Miami Completed No outcome recorded
Phase 213 trials
Phase 2 NCT04516603 Jan 2040 → Dec 2041 University of Basel Withdrawn No outcome recorded
Phase 2 NCT06003166 Apr 2025 → Dec 2027 expected crush syndrome, peripheral nerve lesion University of Arizona Recruiting No outcome recorded
Phase 2 NCT04652557 Nov 2021 → Jan 2023 University of Basel Completed No outcome recorded
Phase 2 NCT03578354 Jan 2019 → Jan 2023 migraine disorder, vestibular disorder Massachusetts Eye and Ear Infirmary Withdrawn No outcome recorded
Phase 2 NCT03658408 Oct 2018 prostate disorder University of Rochester Withdrawn No outcome recorded
Phase 2 NCT02391961 Apr 2015 → Jan 2019 internuclear ophthalmoplegia, multiple sclerosis VA Office of Research and Development Completed No outcome recorded
Phase 2 NCT02166346 Feb 2014 → Jan 2017 idiopathic acute transverse myelitis, neuromyelitis optica, transverse myelitis Johns Hopkins University Completed No outcome recorded
Phase 2 NCT01597297 Aug 2012 → Aug 2013 multiple sclerosis Biogen Completed No outcome recorded
Phase 2 NCT01621113 Jun 2012 → Oct 2017 spinal cord injury Kessler Foundation Completed No outcome recorded
Phase 2 NCT01444300 Sep 2011 → Sep 2013 multiple sclerosis Oregon Health and Science University Completed No outcome recorded
Phase 2/34 trials
Phase 2/3 NCT04026568 Aug 2021 → Jul 2022 traumatic neuropathy Milton S. Hershey Medical Center Terminated No outcome recorded
Phase 2/3 NCT03701581 Jun 2021 → Jul 2027 expected prostate cancer, traumatic neuropathy John Elfar Recruiting No outcome recorded
Phase 2/3 NCT01667497 Sep 2012 → Jul 2015 London Health Sciences Centre Completed No outcome recorded
Phase 2/3 NCT05859802 Jul 2011 → Mar 2015 multiple sclerosis D'Youville College Completed No outcome recorded
Phase 38 trials
Phase 3 NCT07185347 Oct 2025 → May 2027 expected spinocerebellar ataxia 27B, late-onset Assistance Publique - Hôpitaux de Paris Recruiting No outcome recorded
Phase 3 NCT02219932 Sep 2014 → Feb 2016 multiple sclerosis Biogen Completed No outcome recorded
Phase 3 NCT01917019 Aug 2013 → Oct 2015 primary progressive multiple sclerosis, progressive relapsing multiple sclerosis, relapsing-remitting multiple sclerosis, secondary progressive multiple sclerosis Biogen Completed No outcome recorded
Phase 3 NCT01235221 Dec 2010 → Jun 2012 multiple sclerosis Biogen Completed No outcome recorded
Phase 3 NCT00649792 Aug 2007 → Jan 2011 multiple sclerosis Acorda Therapeutics Completed No outcome recorded
Phase 3 NCT00648908 Jun 2006 → Jan 2011 multiple sclerosis Acorda Therapeutics Completed No outcome recorded
Phase 3 NCT00127530 May 2005 → Jun 2006 multiple sclerosis Acorda Therapeutics Completed No outcome recorded
Phase 3 NCT00654927 Nov 2003 → Jan 2011 multiple sclerosis Acorda Therapeutics Completed No outcome recorded
Phase 46 trials
Phase 4 NCT02208050 Feb 2014 → Feb 2016 primary progressive multiple sclerosis, secondary progressive multiple sclerosis University College Dublin Completed No outcome recorded
Phase 4 NCT02849782 Feb 2014 → Mar 2019 multiple sclerosis Centre Hospitalier Universitaire de Besancon Completed No outcome recorded
Phase 4 NCT02146534 Dec 2013 → Jan 2016 multiple sclerosis Clinique Neuro-Outaouais Completed No outcome recorded
Phase 4 NCT01975324 Jul 2013 → Dec 2015 non-arteritic anterior ischemic optic neuropathy Neuro-Ophthalmologic Associates, PC Completed No outcome recorded
Phase 4 NCT01656148 Jun 2012 → May 2014 multiple sclerosis University of Southern Denmark Completed No outcome recorded
Phase 4 NCT01480076 Feb 2012 → Jul 2013 multiple sclerosis Biogen Completed No outcome recorded
Phase not applicable5 trials
NCT07532460 Apr 2026 → Aug 2027 expected cognitive disorder, substance-related disorder Boris Quednow Not yet recruiting No outcome recorded
NCT05274477 Jun 2022 → Jun 2024 post-COVID-19 disorder University of Basel Terminated No outcome recorded
NCT05613114 Aug 2020 → Mar 2021 hereditary spastic paraplegia European University of Lefke Completed No outcome recorded
NCT03847545 Dec 2018 → Oct 2021 multiple sclerosis University of Southern Denmark Completed No outcome recorded
NCT01811706 Feb → Dec 2013 Machado-Joseph disease, spinocerebellar ataxia type 1, spinocerebellar ataxia type 2, spinocerebellar ataxia type 6 University of Florida Completed No outcome recorded
Also used as a comparator or background therapy in 24 trials
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 12 trials
Phase 1 NCT01468350 Comparator Dec 2011 → Jan 2013 cerebral palsy Acorda Therapeutics Completed No outcome recorded
Phase 1 NCT01316055 Comparator Jan → Aug 2011 impaired renal function disease Acorda Therapeutics Completed No outcome recorded
Phase 28 trials
Phase 2 NCT06294821 Comparator Nov 2026 → Dec 2027 expected carpal tunnel syndrome John Elfar Not yet recruiting No outcome recorded
Phase 2 NCT06596434 Comparator Jan 2026 → Jun 2028 expected John Elfar Recruiting No outcome recorded
Phase 2 NCT06333171 Comparator Sep 2025 → Sep 2027 expected John Elfar Recruiting No outcome recorded
Phase 2 NCT06751784 Comparator May 2025 → Jul 2026 overdue major depressive disorder University of Basel Recruiting No outcome recorded
Phase 2 NCT02656160 Comparator Jan → May 2016 obstructive sleep apnea syndrome Brigham and Women's Hospital Completed No outcome recorded
Phase 2/33 trials
Phase 2/3 NCT01645787 Comparator Jun 2012 → Sep 2015 spinal muscular atrophy Columbia University Completed No outcome recorded
Phase 2/3 NCT02006160 Comparator Dec 2011 → Feb 2016 multiple sclerosis State University of New York at Buffalo Completed No outcome recorded
Phase 2/3 NCT01337986 Comparator May 2011 → Dec 2013 multiple sclerosis, optic neuritis Washington University School of Medicine Completed No outcome recorded
Phase 38 trials
Phase 3 NCT06136728 Comparator Jun 2024 → Dec 2026 expected multiple sclerosis MGH Institute of Health Professions Recruiting No outcome recorded
Phase 3 NCT03899584 Comparator Jul 2019 → Dec 2022 spinal cord injury Coordinación de Investigación en Salud, Mexico Unknown No outcome recorded
Phase 3 NCT02422940 Comparator Apr 2015 → Jan 2017 ischemic stroke Acorda Therapeutics Terminated No outcome recorded
Phase 3 NCT02271217 Comparator Dec 2014 → Sep 2016 ischemic stroke Acorda Therapeutics Completed No outcome recorded
Phase 3 NCT01328379 Comparator Mar 2011 → Apr 2012 multiple sclerosis Acorda Therapeutics Completed No outcome recorded
Phase 42 trials
Phase 4 NCT02259361 Comparator Nov 2014 multiple sclerosis Sheba Medical Center Unknown No outcome recorded
Phase 4 NCT01356940 Comparator Nov 2010 → Apr 2013 multiple sclerosis Brown, Theodore R., M.D., MPH Completed No outcome recorded
Phase not applicable1 trial
NCT05730738 Comparator Jun 2021 → Dec 2023 multiple sclerosis Ain Shams University Unknown No outcome recorded

Evidence & citations 27 cited values

Every value below carries the sentence it was read from. 73 sources stand behind the page.

FieldValueCited text
Known as dalfampridine “The proposed version of the drug used in this study is an extended release formulation of 4-AP, called dalfampridine, which was marketed under the trade name AMPYRA, by Acorda...” NCT04026568
25

“Recently, dalfampridine, an extended release formulation of 4AP (AMPYRA) by Acorda Therapeutics, received FDA approval to improve gait in multiple sclerosis.” NCT01543750

NCT01444300

NCT05859802

NCT06136728

NCT02006160

NCT01356940

NCT01468350

NCT01811706

NCT02656160

NCT01316055

NCT02271217

NCT05613114

NCT05730738

NCT01605825

NCT01337986

NCT02868567

NCT01975324

NCT02259361

NCT02422940

NCT01621113

NCT05447676

NCT06853015

NCT01328379

NCT02166346

NCT02391961

Known as 4-aminopyridine “Hence, to confirm the beneficial effect of 4-aminopyridine treatment, this study will compare fampridine 10 mg bid (sustained-release form) to placebo during a 3-month...” NCT07185347
24

“In the present study, we aim at investigating the effects of 10 mg fampridine (4-Aminopyridine), a potassium channel-blocking agent, on working memory performance in...” NCT05274477

“Studies have shown that MS symptomatic treatment by fampridine (4-aminopyridine) is associated with improvements in walking and muscle strength and possibly with cognition,...” NCT02849782

“The Effect of Dalfampridine (4-aminopyridine) on Genioglossus Muscle Activity During Wakefulness and Sleep in Healthy Control Subjects” NCT02656160

“BACKGROUND: Clinical studies suggested that fampridine (4-aminopyridine) improves motor function in people with multiple sclerosis.” PMID 19249634 Feb 2009

“Extended release dalfampridine (also known as fampridine or 4-aminopyridine \[4-AP\]) is a broad spectrum potassium channel blocker” NCT01621113

“The only approved treatment for impaired ambulation in MS is Dalfampridine (also known as fampridine, 4-aminopyridine, 4-AP).” NCT05730738

“Prolonged-release fampridine (4-aminopyridine) is a voltage-gated potassium channel blocking agent.” NCT02146534

“Treatment with fampridine (4-aminopyridine), a potassium channel blocker” NCT02208050

“Fampridine-SR (4-aminopyridine) is a slow release oral medication” NCT01667497

“10 milligram (mg) fampridine-SR (4-aminopyridine, 4-AP)” NCT00053417

NCT01543750

NCT03899584

NCT06596434

NCT03701581

NCT06333171

NCT04026568

NCT02280096

NCT00056810

NCT01645787

NCT03578354

NCT06294821

NCT07532460

NCT03658408

NCT06003166

Known as 4-AP “This phase 2 randomized study will be used to test the efficacy of 4-aminopyridine (4AP) or atenolol to reduce severity and frequency of vestibular and headache symptoms of...” NCT03578354
8

“Recently, dalfampridine, an extended release formulation of 4AP (AMPYRA) by Acorda Therapeutics, received FDA approval to improve gait in multiple sclerosis.” NCT01543750

“The purpose of this study is to see if the study drug 4-aminopyridine (4-AP) can help speed up the recovery of peripheral nerve injury after prostatectomy.” NCT03658408

“Extended release dalfampridine (also known as fampridine or 4-aminopyridine \[4-AP\]) is a broad spectrum potassium channel blocker” NCT01621113

“The only approved treatment for impaired ambulation in MS is Dalfampridine (also known as fampridine, 4-aminopyridine, 4-AP).” NCT05730738

“immediate release formulation of 4-AP, sometimes called fampridine” NCT04026568

“10 milligram (mg) fampridine-SR (4-aminopyridine, 4-AP)” NCT00053417

“4-aminopyridine (4-AP)” NCT00056810

“4-aminopyridine (4-AP)” NCT07532460

Known as AMPYRA “The proposed version of the drug used in this study is an extended release formulation of 4-AP, called dalfampridine, which was marketed under the trade name AMPYRA, by Acorda...” NCT04026568
3

“Recently, dalfampridine, an extended release formulation of 4AP (AMPYRA) by Acorda Therapeutics, received FDA approval to improve gait in multiple sclerosis.” NCT01543750

“Fampridine, Dalfampridine, AmpyraNCT01328379

NCT01491022

Known as Ampyra extended release ChEMBL registry synonym — accepted as the source's own label CHEMBL284348
Known as BIIB041 BIIB041 (Fampridine-SR)” NCT01235221
3

BIIB041 (Fampridine-PR)” NCT01215084

BIIB041 (fampridine)” NCT01917019

NCT01597297

Known as D-ER “The goal of this study was to evaluate the safety and tolerability of dalfampridine extended release (D-ER) in a pilot study of adults with cerebral palsy (CP) and limited...” PMID 28131322 Jan 2017
1

“Dalfampridine extended release tablets (D-ER) enhance action potential conduction in demyelinated axons, which may positively affect post-stroke recovery.” PMID 32651338 2020

Known as Dalfampridine-ER Dalfampridine-ER 5mg” NCT01328379
Known as EL-970 ChEMBL registry synonym — accepted as the source's own label CHEMBL284348
Known as extended release fampridine extended release fampridine 10mg BID PO for 14 weeks” NCT02146534
Known as Fampridina ChEMBL registry synonym — accepted as the source's own label CHEMBL284348
Known as fampridine “Extended release dalfampridine (also known as fampridine or 4-aminopyridine \[4-AP\]) is a broad spectrum potassium channel blocker” NCT01621113
24

“The only approved treatment for impaired ambulation in MS is Dalfampridine (also known as fampridine, 4-aminopyridine, 4-AP).” NCT05730738

“immediate release formulation of 4-AP, sometimes called fampridineNCT04026568

NCT00053417

NCT04652557

NCT02219932

NCT01683838

NCT01576354

NCT01917019

NCT01667497

NCT07171203

NCT04516603

NCT07185347

NCT02146534

NCT01480076

NCT00127530

NCT01215084

NCT04148781

NCT05274477

NCT01656148

NCT01235221

NCT03847545

NCT02208050

NCT02849782

NCT06751784

Known as Fampridine (4-aminopyridine) ChEMBL registry synonym — accepted as the source's own label CHEMBL284348
Known as Fampridine accord ChEMBL registry synonym — accepted as the source's own label CHEMBL284348
Known as fampridine prolonged-release (PR) “A single 10mg dose tablet by mouth of fampridine prolonged-release (PR) for all participants” NCT01215084
Known as Fampridine-PR “BIIB041 (Fampridine-PR)” NCT01215084
Known as Fampridine-SR “Active study medication consists of 15 tablets of fampridine SR 10 mg formulated for oral administration taken in the morning and evening 12 h apart without food.” NCT06751784
10

Fampridine-SR is an experimental drug that increases the ability of the nerve to conduct electrical impulses.” NCT01683838

“Treatment will be of either Fampridine-SR 10 mg BID or placebo BID for four weeks.” NCT01656148

“10 milligram (mg) fampridine-SR (4-aminopyridine, 4-AP)” NCT00053417

“BIIB041 (Fampridine-SR)” NCT01235221

“Drug: Fampridine-SRNCT00127530

NCT00483652

NCT00654927

NCT00041717

NCT00649792

NCT00648908

Known as Fampridine-Sustained Release (SR) “Oral Fampridine-Sustained Release (SR) for the Treatment of Spasticity Resulting From Spinal Cord Injury” NCT01683838
Known as Fampyra “Fampridine, especially its slow-release formulation (Fampyra®) is generally a safe drug with well-studied pharmacokinetic properties.” NCT05274477
1

“Twice daily oral administration of 10 mg fampridine (Fampyra®) for 7.5 days with a wash-out period of at least 6.5 days” NCT06751784

Known as NSC-15041 ChEMBL registry synonym — accepted as the source's own label CHEMBL284348
Known as PRF “BACKGROUND: Both prolonged-release fampridine (PRF) and enabling active motor training (EAMT) are beneficial in multiple sclerosis (MS) patients.” PMID 29552356 Mar 2018
Known as prolonged-release fampridine Prolonged-release fampridine (4-aminopyridine) is a voltage-gated potassium channel blocking agent.” NCT02146534
Known as slow-release Fampridine “The objectives of this study were 1) to examine the effect of SR-Fampridine treatment on muscle strength in terms of maximal voluntary contraction (MVC) and rate of force...” PMID 27919481 Sep 2016
Known as SR Fampridine “The objectives of this study were 1) to examine the effect of SR-Fampridine treatment on muscle strength in terms of maximal voluntary contraction (MVC) and rate of force...” PMID 27919481 Sep 2016
Action Inhibit “4-aminopyridine (4-AP) in those patients who suffer chronic functional deficits from GBS.This medication is a potassium channel blocker” NCT00056810