Saves the questions and what to expect into your notes, next to the visit they belong to.
Keep this study
Lead
Allergan
Age
18–80
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
At least a 1-year history of chronic migraine (CM) consistent with a diagnosis according to the International Classification of Headache Disorders, 3rd Edition (ICHD-3), 2018
Age of the participant at the time of migraine onset \< 50 years
Confirmation of headache/migraine headache day frequency as follows:
* History of, on average, ≥ 15 headache days per month in the 3 months prior to Visit 1 in the opinion of the investigator AND
* \>=15 headache days during the 4-week screening/baseline period per the electronic diary (eDiary) AND
* \>=8 days during the 4-week screening/baseline period that qualify as being a migraine day per the eDiary
Participants must be using a medically acceptable and effective method of birth control during the course of the entire study
You may not be if
Has a history of migraine, accompanied by diplopia or decreased level of consciousness, or retinal migraine
Has a current diagnosis of new persistent daily headache, trigeminal autonomic cephalgia (eg, cluster headache), or painful cranial neuropathy
History of an inadequate response to \> 4 medications (2 of which have different mechanisms of action) prescribed for the prevention of migraine
Woman is pregnant, planning to become pregnant during the course of the study, or currently lactating. Women of childbearing potential must have a negative urine pregnancy test at Visit 1 and Visit 2.
