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Combination Therapy More Effective Than Monotherapy for Treating Migraine

by Medindia Content Team on  April 5, 2007 at 2:37 PM Research News   - G J E 4
Combination Therapy More Effective Than Monotherapy for Treating Migraine
Combining two different types of treatment for migraine results in better symptom relief than taking either one of the medications, according to a study.
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"Migraine is a prevalent, often debilitating disease manifested by attacks of bilateral or unilateral headache and associated symptoms, such as nausea, vomiting, and sensitivity to light and sound," according to background information in the article. While advances have been made in treatment, results are still often unsatisfactory for many patients. None of the currently available medications taken alone provide broad coverage of the multiple pathogenic processes in migraine, which is thought to involve multiple neural pathways. A multimechanism-targeted therapy may confer advantages over a single therapy.

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Jan Lewis Brandes, M.D., of the Nashville Neuroscience Group, Nashville, Tenn., and colleagues evaluated the effectiveness and safety of treating migraine by combining the migraine medications sumatriptan (in the class of drugs known as triptans) and naproxen sodium (a nonsteroidal anti-inflammatory drug; NSAID) compared with placebo and single therapy with either of the drugs. The research consisted of two identical, randomized, double-blind studies conducted among 1,461 (study 1) and 1,495 (study 2) patients at 118 U.S. clinical centers who were diagnosed as having migraine and received study treatment for a moderate or severe migraine attack. Patients were randomized to receive a single tablet containing both sumatriptan, 85 mg, and naproxen sodium, 500 mg; sumatriptan, 85 mg (monotherapy); naproxen sodium, 500 mg (monotherapy); or placebo, to be used after onset of a migraine with moderate to severe pain.

The researchers found that sumatriptan-naproxen sodium was more effective than placebo for headache relief at two hours after dosing (study 1, 65 percent vs. 28 percent; and study 2, 57 percent vs. 29 percent;), absence of photophobia (sensitivity to light) at two hours (58 percent vs. 26 percent; and 50 percent vs. 32 percent;), and absence of phonophobia (sensitivity to sound) at two hours (61 percent vs. 38 percent; and 56 percent vs. 34 percent). The absence of nausea two hours after dosing was higher with sumatriptan-naproxen sodium than placebo in study 1, but in study 2 rates of absence of nausea did not differ between sumatriptan-naproxen sodium and placebo. For 2- to 24-hour sustained pain-free response, sumatriptan-naproxen sodium was superior to sumatriptan monotherapy, naproxen sodium monotherapy and placebo. The incidence of adverse events was similar between sumatriptan-naproxen sodium and sumatriptan monotherapy.

"The superior efficacy of sumatriptan-naproxen sodium compared with sumatriptan monotherapy might be explained by its targeting of multiple pathogenic mechanisms in migraine," the authors write.

Source: Eurekalert
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