A migraine day is defined as a calendar day (12:00am to 11:59pm) in which the subject experiences a migraine attack that starts, ends or recurs within 24 hours and lasts for ≥1 hour (if untreated) or ≥30 minutes (if interrupted with rescue medication). Pain persisting for more than 1 calendar day (≥24 hours) after initial onset will be considered as a new, distinct headache day. Monthly migraine days is defined as the number of migraine days within 28 days or 4 weeks.
Clinical research are research studies that are performed in patients to evaluate medical treatment and procedures. The goal of clinical research is to improve the diagnosis and treatments of patients and to improve the health of individuals who participate in the trials. Clinical trials help determine the safety and efficacy of medications, vaccines, diagnostic products and medical devices to all types of disease