The observational study examining the relationship between climate and the onset of migraine in Japa
Not Applicable
- Conditions
- Migraine
- Registration Number
- JPRN-UMIN000048688
- Lead Sponsor
- Otsuka Pharmaceutical Co., Ltd.
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up continuing
- Sex
- All
- Target Recruitment
- 215319
Inclusion Criteria
Not provided
Exclusion Criteria
Patients <18 years of age Patients prescribed a total of 120 tablets of triptans per year Patients prescribed a total of 120 tablets of ergotamine per year Patients with comorbidities that may cause secondary headaches
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method [Cross-sectional research study: Case crossover design] -The amount of triptans prescribed in each season [Historical cohort research study] -Date of the first triptan prescription from the index date in the target season
- Secondary Outcome Measures
Name Time Method [Descriptive research study] -The amount of triptans prescribed per year and month stratified by region -Number of patient visits to the medical institution per year and month