Multiple Sclerosis Drug Combats Vision Loss

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One expert thinks that despite the vision benefit, Tysabri should be reserved for patients with aggressive MS or those who failed other medications.

"This study confirms the benefits of this particular MS drug in relapsing MS patients," said Dr. Anne H. Cross, a professor of neurology at Washington University School of Medicine, in St. Louis. "In addition, it validates the use of a new vision test which is relevant to MS."

But the benefit to vision doesn't negate the risks associated with the drug, Cross said. "I don't think I will change my prescribing habits based upon this paper," she said. "I will probably continue to use it in the same type of patients I have been using it in in the past."

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However, Nicholas LaRocca, the director of health care delivery and policy research at the National Multiple Sclerosis Society, said the new study provides additional insight into the benefits of the drug and may influence the decision whether to start using it or not.

"For patients who are on natalizumab or considering natalizumab, this gives them another piece of information to consider as they are trying to make their decision," he said.

According to the U.S. National Institutes of Health, multiple sclerosis is an unpredictable disease of the central nervous system that can range from relatively benign to somewhat disabling to devastating, as communication between the brain and other parts of the body is disrupted. Many researchers believe MS to be an autoimmune disease -- one in which the body, through its immune system, launches a defensive attack against its own tissues. In the case of MS, it is the nerve-insulating myelin that comes under assault.

More information

The National Multiple Sclerosis Society can tell you more about multiple sclerosis.

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