Electrical Impedance Myography as an Outcome Measure in ALS Clinical Trials

Study Purpose:

Trials evaluating new therapies for stopping or slowing the progression of ALS depend critically upon the use of outcome measures to assess whether a potential treatment is effective. The more effective an outcome measure, the fewer patients need to be enrolled and the shorter the trial. Many outcome measures have been used over the years, including strength assessments, breathing tests, functional status surveys, and nerve testing, but all are far from ideal. A new method, called electrical impedance myography (EIM) appears to be especially promising in that it provides very consistent data from one testing session to the next, is sensitive to the muscle deterioration that occurs in ALS, and is entirely painless and non-invasive. In this study, investigators from multiple institutions plan to compare several different outcome measures, including EIM, in approximately 120 ALS patients, with each patient being followed for a period of one year. All of these measures will be compared to one another and an assessment of their ability to detect disease progression made. Our goal will be to determine whether EIM can serve as a valuable new outcome measure, ultimately leading to substantially faster, more effective ALS trials requiring fewer patients.

Study Status:

Not recruiting

Disease:

Amyotrophic Lateral Sclerosis

Study Type:

Observational

Type of Intervention:

N/A

Intervention Name:

N/A

Placebo:

N/A

Phase:

N/A

Study Chair(s)/Principal Investigator(s):

Seward B Rutkove, MD, Beth Israel Deaconess Medical Center, Jeremy M Shefner, MD, PhD, Upstate Medical Center

Clinicaltrials.gov ID:

NCT00620698

Neals Affiliated?

No

Coordinating Center Contact Information

Beth Israel Deaconess Medical Center

Boston, Massachusetts, 02446 United States

Full Study Summary:

Trials evaluating new therapies for stopping or slowing the progression of ALS depend critically upon the use of outcome measures to assess whether a potential treatment is effective. The more effective an outcome measure, the fewer patients need to be enrolled and the shorter the trial. Many outcome measures have been used over the years, including strength assessments, breathing tests, functional status surveys, and nerve testing, but all are far from ideal. A new method, called electrical impedance myography (EIM) appears to be especially promising in that it provides very consistent data from one testing session to the next, is sensitive to the muscle deterioration that occurs in ALS, and is entirely painless and non-invasive. In this study, investigators from multiple institutions plan to compare several different outcome measures, including EIM, in approximately 120 ALS patients, with each patient being followed for a period of one year. All of these measures will be compared to one another and an assessment of their ability to detect disease progression made. Our goal will be to determine whether EIM can serve as a valuable new outcome measure, ultimately leading to substantially faster, more effective ALS trials requiring fewer patients.

Study Sponsor:

Beth Israel Deaconess Medical Center

Estimated Enrollment:

89

Estimated Study Start Date:

11 / 02 / 2016

Estimated Study Completion Date:

03 / 01 / 2012

Posting Last Modified Date:

09 / 25 / 2014

Date Study Added to neals.org:

02 / 21 / 2008

Minimum Age:

18 Years

Maximum Age:

85 Years

Inclusion Criteria:

- Definite or probably ALS by El Escorial criteria

- Muscle strength of at 3.5 in one limb

Exclusion Criteria:

- Forced vital capacity of less than 70%

- Atypical forms of motor neuron disease (monomelic amyotrophy, primary lateral sclerosis)

- Pacemaker

University of Miami Miller School of Medicine

Miami, Florida 33136
United States

Emory University

Atlanta, Georgia
United States

Johns Hopkins

Baltimore, Maryland
United States

Beth Israel Deaconess Medical Center

Boston, Massachusetts 02446
United States

Massachusetts General Hospital

Boston, Massachusetts
United States

Upstate Medical Center

Syracuse, New York
United States

Wake Forest University Baptist Medical Center

Winston-Salem, North Carolina 27157
United States

University of Virginia Medical Center

Charlottesville, Virginia 22908
United States