There are few treatments available for the millions of people who suffer from migraines. New early-stage research offers new hope.

Studies presented Tuesday at the American Academy of Neurology's annual meeting suggest that two new drugs may prevent migraines from happening.

"We've identified a new preventive treatment for migraines, something that reduces frequency, the number of attacks and severity of attacks, how bad the attacks are," said Dr. Peter Goadsby, co-author of both studies and professor of neurology at Kings College, London and the University of California, San Francisco. "The results herald a new mechanism for the preventive treatment of migraines."

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