This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Motor-Point Stimulation for Conditioning the Diaphragm of Patients With Amyotrophic Lateral Sclerosis (ALS)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified March 2009 by Synapse Biomedical.
Recruitment status was:  Active, not recruiting
University Hospitals Cleveland Medical Center
Johns Hopkins University
Stanford University
Information provided by:
Synapse Biomedical Identifier:
First received: January 9, 2007
Last updated: March 16, 2009
Last verified: March 2009

The overall goal of this research is to delay the respiratory decline of patients with Amyotrophic Lateral Sclerosis (ALS) thereby increasing their lifespan by conditioning the diaphragm with laparoscopically placed electrodes.

This device currently holds an Investigational Device Exemption No. G040142 in the United States and is currently undergoing clinical trials at University Hospitals (Cleveland), Johns Hopkins, Mayo Clinic Jacksonville, California Pacific Medical Center (CPMC), Henry Ford Health System, The Methodist Hospital, and Stanford University.

Condition Intervention
Amyotrophic Lateral Sclerosis (ALS) Device: Intramuscular diaphragm electrodes

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Multi-Center Pivotal Study of Motor-Point Stimulation for Conditioning the Diaphragm of Patients With Amyotrophic Lateral Sclerosis (ALS)

Resource links provided by NLM:

Further study details as provided by Synapse Biomedical:

Primary Outcome Measures:
  • The DPS System will slow the decline of pulmonary function, as defined by percent predicted forced vital capacity (FVC) to 30% of normal, by approximately 12 months [ Time Frame: After completion of the study ]

Secondary Outcome Measures:
  • Adverse events from implantation and use of the DPS System will be logged and qualitatively compared to adverse event rates in similar patient populations. [ Time Frame: After completion of the study ]

Estimated Enrollment: 100
Study Start Date: October 2004
Estimated Study Completion Date: October 2009
Estimated Primary Completion Date: October 2009 (Final data collection date for primary outcome measure)
Intervention Details:
    Device: Intramuscular diaphragm electrodes
    Conditioning of the diaphragm
  Show Detailed Description


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Age 18 or older
  • Participants with familial or sporadic ALS diagnosed as laboratory-supported probable, probable, or definite according to the World Federation of Neurology El Escorial criteria will be eligible
  • Bilateral phrenic nerve function clinically acceptable as demonstrated by bilateral diaphragm movement with fluoroscopic sniff test or with EMG recordings and nerve conduction times
  • Forced Vital Capacity (FVC) between 50 - 85% of predicted values to begin screening procedures.
  • FVC greater than 45% of predicted value at time of surgery.
  • No underlying cardiac or pulmonary diseases that would increase the risk of general anesthesia greater than the expected risk of the patient with ALS
  • Negative pregnancy test in females of child-bearing potential
  • Informed consent from patient or designated representative

Exclusion Criteria:

  • Preexisting implanted electrical device such as pacemaker or cardiac defibrillator.
  • Underlying pulmonary diseases that were present prior to ALS that would effect pulmonary tests independent of ALS
  • Active cardiovascular disease that would increase the risk of general anesthesia
  • Current pregnancy or breastfeeding
  • Hospitalization for a treated active infection within the last 2 months
  • Significant decision making incapacity preventing informed consent by the subject due to a major mental disorder such as major depression or schizophrenia, or dementia such as having Alzheimer's disease.
  • Marked obesity
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00420719

United States, California
Forbes Norris - California Pacific Medical Center (CPMC)
San Francisco, California, United States, 94115
Stanford University Medical Center
Stanford, California, United States, 94305
United States, Florida
Mayo Clinic
Jacksonville, Florida, United States, 32224
United States, Maryland
Johns Hopkins University
Baltimore, Maryland, United States, 21287
United States, Michigan
Henry Ford Health System
Detroit, Michigan, United States, 48202-2689
United States, Ohio
University Hospitals Of Cleveland
Cleveland, Ohio, United States, 44106
United States, Texas
The Methodist Hospital
Houston, Texas, United States, 77030
Groupe Hospitalier Pitie-Salpetriere
Paris, France
Sponsors and Collaborators
Synapse Biomedical
University Hospitals Cleveland Medical Center
Johns Hopkins University
Stanford University
Principal Investigator: Raymond Onders, MD University Hospitals Cleveland Medical Center
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Raymond Onders, MD, University Hospitals of Cleveland Identifier: NCT00420719     History of Changes
Other Study ID Numbers: CLIN 20-0009-0005
Study First Received: January 9, 2007
Last Updated: March 16, 2009

Keywords provided by Synapse Biomedical:
Amyotrophic Lateral Sclerosis
Lou Gehrig's disease
Diaphragm for Ventilatory Assist
Diaphragm Pacing

Additional relevant MeSH terms:
Amyotrophic Lateral Sclerosis
Motor Neuron Disease
Pathologic Processes
Neurodegenerative Diseases
Nervous System Diseases
Neuromuscular Diseases
Spinal Cord Diseases
Central Nervous System Diseases
TDP-43 Proteinopathies
Proteostasis Deficiencies
Metabolic Diseases processed this record on September 18, 2017