NCT05237973

Brief Summary

Background: Current techniques used to measure the health and function of a person s nerves and muscles are generally effective, but they do have limits. Researchers are looking for ways to improve the ability to observe nerves and muscles and how they function in this natural history protocol. Objective: To study the use of ultrasound (sound waves) to learn more about nerves and muscles. Eligibility: Healthy adults, aged 18 and older, with no history of stroke, nerve or muscular disorders, or spine surgery are also needed. A smaller population of adults aged 18 and older who have a neuromuscular disorder or show symptoms of nerve or muscle disorder will also be evaluated. Design: Participants will be screened with a medical record review. Participants will have up to 5 outpatient clinic visits. Most participants will have 1 or 2 visits. Visits will last for less than 3-4 hours each. During each visit, participants will give a brief medical history and have a physical exam. Participants will have ultrasounds to get pictures and measurements of their nerves and muscles. Gel will be applied to their skin. A probe will be placed on the skin surface. Sound waves sent through the probe will be used to create pictures. Participants may have nerve conduction studies. Wires will be taped to the skin surface near a muscle or nerve in the arm or leg. The nerve will be stimulated with a small electric current that feels like a rubber band flick. The response will be recorded through the wires.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
150

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Apr 2022

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 9, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 14, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

April 18, 2022

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 3, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 3, 2026

Completed
Last Updated

April 22, 2026

Status Verified

April 17, 2026

Enrollment Period

4.3 years

First QC Date

February 9, 2022

Last Update Submit

April 21, 2026

Conditions

Keywords

NeuromuscularUltrasoundElastographyMuscleNerveNatural History

Outcome Measures

Primary Outcomes (2)

  • To collect normal values of M-mode diaphragm imaging during quiet and deep breathing and voluntary sniff testing in a population of health controls to establish normal values.

    Normative values for M-mode imaging of the diaphragm in a population of healthy controls.

    ongoing

  • To acquire normative values for B-mode imaging of nerves (fascicle count) and muscles (quantitative echotexture measurement) and shear wave elastography data on muscle and nerve stiffness/speed of sound in a population of healthy volunteers.

    Normative values for muscle and nerve shear wave elastography in a population of normal volunteers Normative values for nerve fascicular count in a population of normal volunteers

    ongoing

Secondary Outcomes (2)

  • To determine the reproducibility of specialized techniques involving ultrasound of muscle and nerve: shear wave elastography in muscles and nerves, nerve fascicle counts

    ongoing

  • To determine the presence or absence of low flow microvascular flow within nerves of a population of healthy volunteers

    ongoing

Study Arms (2)

Neuromuscular disorders

Diagnosed with a neuromuscular disorder such as motor neuron disorder, myopathy or have findings consistent with a peripheral neuropathy.

Normal volunteers

No known abnormal muscle or nerve disorders

Eligibility Criteria

Age18 Years - 110 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Community and participants on other NIH protocols that have neuromuscular disorders.

You may qualify if:

  • In order to be eligible to participate in this study, an individual must meet all of the following criteria:
  • Healthy Volunteers-Adults
  • Healthy adults, male or female, aged 18 years old or older,
  • In good general health as evidenced by medical history, medical conditions under control such as hypertension acceptable.
  • Stated willingness to comply with all study procedures and availability for the duration of the study.
  • Ability of subject to understand and the willingness to sign a written informed consent document.
  • Participants with neuromuscular disorders
  • Adults, male or female, aged 18 years old or older,
  • Diagnosed with a neuromuscular disorder or have signs and symptoms of nerve or muscle disorder or neuromuscular diaphragm dysfunction.
  • Stated willingness to comply with all study procedures and availability for the duration of the study.
  • Ability of subject to understand and the willingness to sign a written informed consent document.

You may not qualify if:

  • Healthy Volunteers-Adults
  • History of stroke, muscle disorders, peripheral neuropathy, or spine surgery
  • Participants with neuromuscular disorders
  • No clinical evidence of a neuromuscular disorder on clinical evaluation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center

Bethesda, Maryland, 20892, United States

RECRUITING

Related Publications (3)

  • Creze M, Nordez A, Soubeyrand M, Rocher L, Maitre X, Bellin MF. Shear wave sonoelastography of skeletal muscle: basic principles, biomechanical concepts, clinical applications, and future perspectives. Skeletal Radiol. 2018 Apr;47(4):457-471. doi: 10.1007/s00256-017-2843-y. Epub 2017 Dec 9.

    PMID: 29224123BACKGROUND
  • Saade DN, Neuhaus SB, Foley AR, Bonnemann CG. The Use of Muscle Ultrasound in the Diagnosis and Differential Diagnosis of Congenital Disorders of Muscle in the Age of Next Generation Genetics. Semin Pediatr Neurol. 2019 Apr;29:44-54. doi: 10.1016/j.spen.2019.01.001. Epub 2019 Jan 16.

    PMID: 31060725BACKGROUND
  • Hobson-Webb LD. Emerging technologies in neuromuscular ultrasound. Muscle Nerve. 2020 Jun;61(6):719-725. doi: 10.1002/mus.26819.

    PMID: 32012298BACKGROUND

Related Links

MeSH Terms

Conditions

Muscular DystrophiesPeripheral Nervous System Diseases

Condition Hierarchy (Ancestors)

Muscular Disorders, AtrophicMuscular DiseasesMusculoskeletal DiseasesNeuromuscular DiseasesNervous System DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

  • Tanya J Lehky, M.D.

    National Institute of Neurological Disorders and Stroke (NINDS)

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Tanya J Lehky, M.D.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 9, 2022

First Posted

February 14, 2022

Study Start

April 18, 2022

Primary Completion

August 3, 2026

Study Completion

August 3, 2026

Last Updated

April 22, 2026

Record last verified: 2026-04-17

Locations