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Combination Treatment for Migraine More Effective Than Single Medications

CHICAGO, IL -- April 3, 2007 -- Combining two different types of treatment for migraine results in better symptom relief than taking either one of the medications, according to a study in the April 4 issue of JAMA.

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.

Jan Lewis Brandes, MD, of the Nashville Neuroscience Group, Nashville, TN, 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 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% vs. 28%; and study 2, 57% vs. 29%), absence of photophobia at two hours (58% vs. 26%; and 50% vs. 32%;), and absence of phonophobia at two hours (61% vs. 38%; and 56% vs. 34%). 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: American Medical Association

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