Experimental Drug Reduces Migraine Days by Half

An experimental injectable drug reduces the number of migraine days by 50 percent or more in patients who suffer from chronic migraine, according to the results of a new study released by drug makers Amgen and Novartis.

The Phase II study of AMG 334 -- also known as erenumab – involved 667 patients who suffered an average of about 18 migraine days per month.  A reduction of 50% or more in monthly migraine days was observed in four out of ten patients taking a 140 mg dose of erenumab. Patients taking a 70 mg dose had a 40% reduction in migraine days compared to a placebo drug.  

Significant improvements were also noted in quality of life, headache impact, disability, and pain interference compared to the placebo.

“Chronic migraine patients lose more than half of their life to migraines with 15 or more headache days a month, facing intolerable pain and physical impairment,” said Stewart Tepper, MD, a professor of neurology at the Geisel School of Medicine at Dartmouth. “As a neurologist, these findings are exciting because they demonstrate that erenumab could serve as an important new therapy option for reducing the burden of this often-disabling disease.”

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