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Growth Hormone Not Beneficial For ALS, Study Finds

Date:
December 9, 2008
Source:
American Academy of Neurology
Summary:
A growth hormone that had shown some promise for treating people with amyotrophic lateral sclerosis showed no benefit in a new study.

A growth hormone that had shown some promise for treating people with amyotrophic lateral sclerosis (ALS) showed no benefit in a new study published in the November 25, 2008, issue of Neurology, the medical journal of the American Academy of Neurology.

Two previous, shorter studies using growth hormone insulin-like growth factor-1, or IGF-1, to treat ALS had conflicting results. A North American study found that the drug was beneficial, while a European study found no benefit.

The current two-year study found that IGF-1 does not slow the progression of weakness in the disease. ALS, also called Lou Gehrig's disease, is a progressive, fatal neurodegenerative disease that causes muscles to weaken and eventually deteriorate.

"It's disappointing that we were not able to confirm the benefit that was found in the North American study," said study author Eric J. Sorenson, MD, of the Mayo Clinic in Rochester, MN, and a member of the American Academy of Neurology. "The current treatment options for ALS are inadequate, and more effective treatments are vitally needed."

The study involved 330 people with ALS from 20 medical centers. Half were given injections of the growth hormone twice a day and half were given injections of a placebo. Researchers tested the participants' muscle strength at the beginning of the study and again five times during the study period. Researchers also tracked how long participants went without needing a tracheostomy, or a tube inserted in the neck for help with breathing, and their scores in a test of how well they can perform daily activities.

There was no difference in muscle strength between those taking the growth hormone and those taking the placebo. There were also no differences in how long the two groups went without needing a tracheostomy or in their results on the daily activities test.

The study was supported by the National Institutes of Health and the ALS Association. The study drug and placebo were provided by Cephalon, Inc.


Story Source:

The above story is based on materials provided by American Academy of Neurology. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Neurology. "Growth Hormone Not Beneficial For ALS, Study Finds." ScienceDaily. ScienceDaily, 9 December 2008. <www.sciencedaily.com/releases/2008/11/081124165115.htm>.
American Academy of Neurology. (2008, December 9). Growth Hormone Not Beneficial For ALS, Study Finds. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2008/11/081124165115.htm
American Academy of Neurology. "Growth Hormone Not Beneficial For ALS, Study Finds." ScienceDaily. www.sciencedaily.com/releases/2008/11/081124165115.htm (accessed July 30, 2014).

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