Influence of polymorphisms of adenosine A2 receptor and dopamine D2 receptor on mental calculations, blood pressure and pulse rate after intake of caffeine: a double-blind randomized placebo-controlled clinical trial.
Not Applicable
- Conditions
- Effect of caffeine
- Registration Number
- JPRN-UMIN000010360
- Lead Sponsor
- Department of Clinical Pharmacology, Faculty of Medical Science, Kyushu University
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up complete
- Sex
- All
- Target Recruitment
- 500
Inclusion Criteria
Not provided
Exclusion Criteria
1. cardiovascular disease that should be treated 2. severe liver disease 3. severe renal disease 4. pregnant women and women suspected of being pregnant 5. severe allergic reaction and allergic reaction to caffeine 6. gastric ulcer 7. glaucoma 8. On medical treatment 9. Not appropriate to this study by other reasons
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Change of the accurate number of mental calculation after intake caffeine 200 mg compared to decafe
- Secondary Outcome Measures
Name Time Method Change of blood pressure and pulse rate after intake caffeine 200 mg compared to decafe