History of chronic migraine with or without aura consistent with a diagnosis according to the International Classification of Headache Disorders, 3rd Edition (ICHD-3) (2018) for at least 6 months as of Visit 1.
During the last 28 days of the screening/baseline period, and as per eDiary:
* Participant must have completed the eDiary for a minimum of 20 out of 28 days.
* Participant has \>= 15 headache days.
* Participant has \>= 8 migraine days.
You may not be if
Clinically significant hypertension per investigator's judgment.
History of any clinically significant hematologic, endocrine, pulmonary, renal, hepatic, gastrointestinal, cardiovascular or neurologic disease.
