Status:
COMPLETED
The Effects of Caffeine and L-theanine Both Alone and in Combination on Cerebral Blood Flow, Cognition and Mood
Lead Sponsor:
Northumbria University
Conditions:
Cognitive Function
Mood
Eligibility:
All Genders
18-35 years
Phase:
PHASE4
Brief Summary
Although the beneficial effects of caffeine on cognition and mood have been reported in a number of studies, relatively few studies have looked at the effects of caffeine in combination with other phy...
Eligibility Criteria
Inclusion
- Healthy
- Aged 18-35
- Either caffeine consumers (consume more than 150mg caffeine per day) or non-consumers (less than 44mg caffeine per day).
Exclusion
- Smoke or consume any tobacco products
- Not proficient in English language
- Pregnant (or seeking to become pregnant)
- Taking recreational, over the counter/prescription medication (including the contraceptive pill), and/or dietary/herbal supplements
- Have food allergies or sensitivities
- Have history of/current head trauma, learning difficulties , ADHD, migraines or any gastric problems
Key Trial Info
Start Date :
August 1 2009
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
February 1 2010
Estimated Enrollment :
24 Patients enrolled
Trial Details
Trial ID
NCT00981955
Start Date
August 1 2009
End Date
February 1 2010
Last Update
July 23 2010
Active Locations (1)
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1
Northumbria University
Newcastle upon Tyne, Tyne & Wear, United Kingdom, Ne1 8ST