Chronic migraine becomes “refractory” when preventive treatments don’t work to reduce the frequency of episodes. Treatment may include complementary therapies like neuromodulation.
“With many current drugs to prevent migraine, it takes time to find the right dosage for the individual and it can take weeks or even months for it to be most effective,” lead researcher Dr. Richard ...
The PROGRESS trial, which enrolled people with chronic migraine, had 256 on the drug and 246 on placebo. People with episodic migraine experience up to 14 migraine days per month. People with ...