NCT01143428

Brief Summary

Background: \- Primary lateral sclerosis (PLS) is a disorder in which nerve cells in the brain that control movement degenerate. The cause of PLS is not known, but some research has suggested that environmental factors that produce oxidative stress trigger PLS in people who carry certain genes. Oxidative stress is caused when the body makes chemicals called "free radicals" faster than its natural systems can break them down. Oxidative stress can be triggered by exposures to chemicals related to the bodily effects of lead, smoking, alcohol consumption, physical activity, and psychological stress. Chemicals produced by the body during oxidative stress can be measured in the blood and urine. Researchers are interested in studying the physical, neurological, and chemical effects of PLS to better understand the effects of oxidative stress on the disorder. Objectives: \- To study the relation of oxidative stress to the diagnosis and progression of motor neuron disease. Eligibility: \- Individuals 20 years of age or older who have been diagnosed with PLS, and have had symptoms of PLS for at least 5 but not more than 8 years and been previously enrolled in 01-N-0145 Screening: Neurologic Disorders with Muscle Stiffness Design:

  • Participants will have an initial study visit and three follow-up visits. Each visit will require approximately 3 days of testing at the National Institutes of Health Clinical Center.
  • As part of this study, participants will have the following tests and procedures:
  • Neurological examination to test muscle strength, sensation, coordination, and reflexes, as well as clarity of speech
  • Tests of memory, attention, concentration, and thinking
  • Surveys on oxidative stress, including questions on life, mood, jobs held, and habit
  • Electromyography to record the electrical activity of muscles
  • Transcranial magnetic stimulation to measure electrical activity translated from their brain to the muscles
  • Blood, urine, and skin biopsy samples for testing and sample collection
  • After the initial visit, participants will have three more visits, once each in the following 3 years.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
10

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2010

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

May 13, 2010

Completed
29 days until next milestone

First Submitted

Initial submission to the registry

June 11, 2010

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 14, 2010

Completed
5.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 3, 2015

Completed
Last Updated

November 5, 2019

Status Verified

August 3, 2015

First QC Date

June 11, 2010

Last Update Submit

November 2, 2019

Conditions

Keywords

Motor Neuron DiseasePrimary Lateral SclerosisOxidative StressPhysiologyPLS

Outcome Measures

Primary Outcomes (1)

  • Decline in ALSFRS score

Eligibility Criteria

Age20 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients will be included if they:
  • Are 20 years or older
  • Have PLS, that is pure UMN dysfunction (spasticity, pathological hyperreflexia, pathological reflexes with or without motor weakness) of undetermined etiology
  • Have been evaluated at NIH and are being willing to return for active follow-up for 3 years
  • Had PLS symptom onset at least 5 years prior to the study enrollment but not more than 15 years
  • Have normal nerve conduction studies and normal needle electrode examination performed within 12 months of the time of enrollment in this study
  • Have no other definable diseases causing spasticity such as structural brain or spinal cord disease, metabolic diseases, paraneoplastic syndromes, hereditary diseases, infectious diseases, or other significant neurological abnormalities
  • Have a reliable family caregiver who can assist in providing responses on telephone interviews and questionnaires if the proband has problems with speaking or writing
  • Are fluent in English
  • Ability to provide his/her own informed consent

You may not qualify if:

  • Patients will be excluded if they:
  • Have EMG evidence of active denervation or fasciculations in more than a few muscles with chronic neurogenic motor unit potentials at the time of enrollment
  • Have only lower extremity involvement
  • Have major medical diseases (e.g. active cancer, dialysis) that have required active medical treatment within the past 6 months
  • Are participating in clinical treatment trials at the time of enrollment and acquisition of baseline biological samples (participation in clinical trials after the baseline visit is permitted)
  • Are unwilling or unable to return for follow-up visits
  • Have pacemakers or other implanted electrical devices, which might make TMS unsafe will be excluded from TMS testing

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, 20892, United States

Location

Related Publications (3)

  • Gordon PH, Cheng B, Katz IB, Mitsumoto H, Rowland LP. Clinical features that distinguish PLS, upper motor neuron-dominant ALS, and typical ALS. Neurology. 2009 Jun 2;72(22):1948-52. doi: 10.1212/WNL.0b013e3181a8269b.

    PMID: 19487653BACKGROUND
  • Strong MJ, Gordon PH. Primary lateral sclerosis, hereditary spastic paraplegia and amyotrophic lateral sclerosis: discrete entities or spectrum? Amyotroph Lateral Scler Other Motor Neuron Disord. 2005 Mar;6(1):8-16. doi: 10.1080/14660820410021267.

    PMID: 16036421BACKGROUND
  • Tartaglia MC, Rowe A, Findlater K, Orange JB, Grace G, Strong MJ. Differentiation between primary lateral sclerosis and amyotrophic lateral sclerosis: examination of symptoms and signs at disease onset and during follow-up. Arch Neurol. 2007 Feb;64(2):232-6. doi: 10.1001/archneur.64.2.232.

    PMID: 17296839BACKGROUND

MeSH Terms

Conditions

Motor Neuron Disease

Condition Hierarchy (Ancestors)

Neurodegenerative DiseasesNervous System DiseasesNeuromuscular Diseases

Study Officials

  • Mary Kay Floeter, M.D.

    National Institute of Neurological Disorders and Stroke (NINDS)

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Time Perspective
OTHER
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 11, 2010

First Posted

June 14, 2010

Study Start

May 13, 2010

Study Completion

August 3, 2015

Last Updated

November 5, 2019

Record last verified: 2015-08-03

Locations