Nicholas J. Maragakis
Distinguished in Dysarthria

Dr. Nicholas J. Maragakis

Neuromusculoskeletal Medicine
Johns Hopkins Medicine
Johns Hopkins Outpatient Center
601 North Caroline Street, Floor 5, Floor 5, 
Baltimore, MD 

Distinguished in Dysarthria
Johns Hopkins Medicine
Johns Hopkins Outpatient Center
601 North Caroline Street, Floor 5, Floor 5, 
Baltimore, MD 
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Overview

Nicholas Maragakis treats patients with motor neuron diseases, such as amyotrophic lateral sclerosis (ALS). This care is coordinated with the Johns Hopkins Center for ALS Specialty Care, a multidisciplinary clinic with expertise in treating patients with ALS and providing support to their caregivers. He serves as medical director of the ALS Clinical Trials Unit, an extension of the multidisciplinary clinic that seeks to facilitate opportunities for patients with ALS to participate in clinical trials that could advance the treatment of this disease. Dr. Maragakis is interested in the basic science of understanding neurodegenerative diseases, as well as the translational potential of therapeutic compounds developed in the laboratory. His fundamental research interest is in using stem cells — more specifically, stem cell-derived motor neurons and glia — for understanding the development and propagation of ALS. His laboratory has been involved in creating and characterizing lines of stem cells from patients with ALS using induced pluripotent stem cell (iPSC) methodologies. The laboratory has a large library of iPSCs from patients with familial ALS and from patients with sporadic ALS. The utilization of this library of iPSCs has facilitated the development of a spinal cord-specific iPSC-astrocyte/motor neuron co-culture system, which has been leveraged for the development of assays that can be used for both the basic understanding of ALS astrocyte and motor neuron biology as well as, eventually, drug screening for ALS therapeutics. His laboratory has taken its long-standing interests in astrocyte biology, as it relates to ALS, to develop a program that investigates astrocyte-specific mechanisms as contributors to the progression (both temporally and anatomically) of disease in ALS. In this vein, there is an interest in astrocytic glutamate transporters and, more recently, astrocyte hemichannels and gap junctions.

Dr. Maragakis is rated as a Distinguished provider by MediFind in the treatment of Dysarthria. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, 15q11.2 Microdeletion, and Spinal Muscular Atrophy (SMA).

His clinical research consists of co-authoring 115 peer reviewed articles and participating in 3 clinical trials. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 2 articles in the study of Dysarthria.

Residency
Johns Hopkins University School of Medicine, Neurology, 1998
Specialties
Neuromusculoskeletal Medicine
Licenses
Psychiatry & Neurology in MD
Fellowships
Johns Hopkins University School of Medicine, Clinical Neurophysiology, 1999
Hospital Affiliations
The Johns Hopkins Hospital
Languages Spoken
English
Gender
Male

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Locations

Johns Hopkins Outpatient Center
601 North Caroline Street, Floor 5, Floor 5, Baltimore, MD 21287
Call: 410-955-9441

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


3 Clinical Trials

A Phase 2a, Double-Blind, Randomized, Placebo-Controlled, Multicenter Study to Assess the Safety of Engensis in Participants With Amyotrophic Lateral Sclerosis
A Phase 2a, Double-Blind, Randomized, Placebo-Controlled, Multicenter Study to Assess the Safety of Engensis in Participants With Amyotrophic Lateral Sclerosis
Enrollment Status: Completed
Publish Date: October 06, 2025
Intervention Type: Other, Biological
Study Drug: Engensis
Study Phase: Phase 2
A Phase 2b/3, Multi-Center, Randomized, Double-Blind, Placebo-Controlled, 12 Month Clinical Trial to Evaluate the Efficacy and Safety of MN-166 (Ibudilast) Followed by Open-Label Extension Phase in Subjects With Amyotrophic Lateral Sclerosis
A Phase 2b/3, Multi-Center, Randomized, Double-Blind, Placebo-Controlled, 12 Month Clinical Trial to Evaluate the Efficacy and Safety of MN-166 (Ibudilast) Followed by Open-Label Extension Phase in Subjects With Amyotrophic Lateral Sclerosis
Enrollment Status: Active_not_recruiting
Publish Date: September 16, 2025
Intervention Type: Drug
Study Drug: MN-166
Study Phase: Phase 2/Phase 3
A Phase 2 Pharmacodynamic Trial of Ezogabine (Retigabine) on Neuronal Excitability in Amyotrophic Lateral Sclerosis
A Phase 2 Pharmacodynamic Trial of Ezogabine (Retigabine) on Neuronal Excitability in Amyotrophic Lateral Sclerosis
Enrollment Status: Completed
Publish Date: August 28, 2019
Intervention Type: Drug
Study Phase: Phase 2
View 2 Less Clinical Trials

115 Total Publications

Longitudinal study of gesture decoding in a clinical trial participant with ALS.
Longitudinal study of gesture decoding in a clinical trial participant with ALS.
Journal: medRxiv : the preprint server for health sciences
Published: November 19, 2025
View All 115 Publications
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Dr. Jeffrey Rothstein focuses on neuromuscular diseases, with a particular focus on Amyotrophic lateral sclerosis (ALS). Other clinical areas relevant to his laboratory-based research include idiopathic stupor, epilepsy, and motor neuron degeneration. His laboratory includes more than 25 post-doctoral fellows, neurology residents, neuromuscular fellows, junior faculty, undergraduate students, technicians, and ALS clinic staff. He has been the principal and/or local investigator in more than 20 national or international trials in ALS. He is the author of more than 360 articles on basic and clinical neuroscience. Dr. Rothstein's laboratory research is funded through the National Institutes of Health, the Dept of Defense, Target ALS, Maryland TEDCO, Alzheimer's Drug Discovery Foundation, the Muscular Dystrophy Association, the ALS Association, and Answer ALS. Dr. Jeffrey Rothstein received a masters degree in neurochemistry from the University of Chicago and a Ph.D. in physiology and biophysics from the University of Illinois Health Sciences Center. He then obtained his medical degree from the University of Illinois College of Medicine. He went on to complete an internship at the University of North Carolina Memorial Hospital before joining The Johns Hopkins for his residency. While at Johns Hopkins, he became chief resident in neurology and completed his fellowship in neuromuscular disease. He has been Professor of Neurology and Neuroscience at Johns Hopkins for more than 25 years. Dr. Rothstein is rated as an Advanced provider by MediFind in the treatment of Dysarthria. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Spinal Muscular Atrophy (SMA), Spinal and Bulbar Muscular Atrophy, and Spinal Muscular Atrophy Type 3.

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Sean Burke is a Neurologist and a Neuromusculoskeletal Medicine provider in Frederick, Maryland. Dr. Burke is rated as an Advanced provider by MediFind in the treatment of Dysarthria. His top areas of expertise are Seizures, Multiple Sclerosis (MS), Relapsing Multiple Sclerosis (RMS), and Peripheral Neuropathy. Dr. Burke is currently accepting new patients.

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Areas of Expertise

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Find Dr. Maragakis's expertise for a condition
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  • Elite
  • 15q11.2 Microdeletion
    Dr. Maragakis is
    Elite
    . Learn about 15q11.2 Microdeletion.
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  • Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease)
    Dr. Maragakis is
    Elite
    . Learn about Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease).
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  • Primary Lateral Sclerosis
    Dr. Maragakis is
    Elite
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  • Distinguished
  • Dysarthria
    Dr. Maragakis is
    Distinguished
    . Learn about Dysarthria.
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  • Spinal and Bulbar Muscular Atrophy
    Dr. Maragakis is
    Distinguished
    . Learn about Spinal and Bulbar Muscular Atrophy.
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  • Spinal Muscular Atrophy (SMA)
    Dr. Maragakis is
    Distinguished
    . Learn about Spinal Muscular Atrophy (SMA).
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  • Spinal Muscular Atrophy Type 3
    Dr. Maragakis is
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    . Learn about Spinal Muscular Atrophy Type 3.
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    • Experienced
    • Alternating Hemiplegia of Childhood
      Dr. Maragakis is
      Experienced
      . Learn about Alternating Hemiplegia of Childhood.
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    • Chronic Polyradiculoneuritis
      Dr. Maragakis is
      Experienced
      . Learn about Chronic Polyradiculoneuritis.
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    • Cramp-Fasciculation Syndrome
      Dr. Maragakis is
      Experienced
      . Learn about Cramp-Fasciculation Syndrome.
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    • Creutzfeldt-Jakob Disease
      Dr. Maragakis is
      Experienced
      . Learn about Creutzfeldt-Jakob Disease.
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    • Dementia
      Dr. Maragakis is
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      . Learn about Dementia.
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    • Dry Mouth
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