Status:
COMPLETED
Tea Components, Mental Stress and Blood Pressure
Lead Sponsor:
Unilever R&D
Collaborating Sponsors:
University College, London
Conditions:
Healthy
Eligibility:
All Genders
18-45 years
Phase:
NA
Brief Summary
Assess the effects of adding theanine to a caffeinated beverage on changes in blood pressure during acute mental stress.
Detailed Description
Caffeine and (mental) stress can increase blood pressure. In a typical everyday and/or work environment they commonly coincide. Tea has the reputation of being a relaxing drink. L-theanine is an amino...
Eligibility Criteria
Inclusion
- Apparently healthy males and females
- Women taking the contraceptive pill
- 18-45 years of age
- BMI 20-30 kg/m2
- Normal or corrected vision
- Low caffeine consumers (\<100mg/day)
- Non smokers and having been a non-smoker for \> 6 months
- Fluent English
- Normotensive (\>90/60 \<140/90 mmHg)
Exclusion
- Significant current or medical history of cardiovascular disease
- Low or high STAI trait score in the opinion of the PI
- Known sensitivity to caffeine or theanine
- Colour blindness
- Alcohol consumption above 14/21 units female/male resp. per week
- Weight loss diet \> 10% of bodyweight in the previous year
- Anyone with a dependency on PI or staff of Department of Epidemiology and Public Health or being an employee of Unilever
- Reported participation in another biomedical study \< 3 months before screening
Key Trial Info
Start Date :
March 1 2015
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
November 1 2015
Estimated Enrollment :
56 Patients enrolled
Trial Details
Trial ID
NCT02298530
Start Date
March 1 2015
End Date
November 1 2015
Last Update
December 4 2015
Active Locations (1)
Enter a location and click search to find clinical trials sorted by distance.
1
University College London
London, United Kingdom