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Coffee Bioequivalence Trial
Sponsor: University of Reading
Summary
The goal of this clinical trial is to test if coffee consumed as a tablet is biologically equivalent to that consumed traditionally as a drink. It will also learn about the impact of the short-term intake of coffee on markers of cardiovascular and liver health. The main questions it aims to answer are: * Do coffee bioactive compounds produce the same levels in blood and urine regardless of how the coffee is consumed (tablet or drink)? * How does coffee as a tablet or drink impact cardiovascular risk and liver health versus a non-coffee control? Participants will: * Visit the clinical unit for three phases; each phase is 1x 480 minute (eight hour) acute postprandial visit and 1 x one hour visit the following day. During each phase they will be randomly assigned to take a different intervention (coffee drink, coffee tablet, coffee-free control) * Be cannulated during the 480 minute (8 hour) acute visits and have regular blood draws as well as basic clinical assessments * Return on day two for a fasting blood sample and basic clinical assessment * Collect their urine for 24 h * Be asked to record their intake of foods and drinks for 3 days to assess their usual diet (dietary assessment).
Official title: Coffee Bioequivalence Trial: Comparing the Pharmacokinetics of Bioactive Components and Physiological Effects of Consuming Encapsulated Instant Coffee Versus Traditional Instant Coffee Brewed in Water
Key Details
Gender
All
Age Range
18 Years - 45 Years
Study Type
INTERVENTIONAL
Enrollment
16
Start Date
2025-01
Completion Date
2025-12-30
Last Updated
2025-01-03
Healthy Volunteers
Yes
Interventions
Instant coffee given as a drink
Commercially available instant coffee (3.6 g) will be provided in the form of a drink prepared with 400 ml of water. A standard breakfast consisting of cereal with milk will be provided at 60 mins after the intervention. A standard lunch (cheese sandwiches, potato crisps and shortbread biscuits) will be given at 300 after coffee intake.
Coffee given in a tablet form
Commercially available instant coffee (3.6 g) will be provided as 4 tablets given with 400 ml of water. A standard breakfast consisting of cereal with milk will be provided at 60 mins after the intervention. A standard lunch (cheese sandwiches, potato crisps and shortbread biscuits) will be given at 300 after coffee intake.
Control (placebo)
A caffeine and coffee free control (3.6 g) will be provided as 4 tablets given with 400 ml of water. A standard breakfast consisting of cereal with milk will be provided at 60 mins after the intervention. A standard lunch (cheese sandwiches, potato crisps and shortbread biscuits) will be given at 300 after coffee intake.
Locations (1)
Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading
Reading, Berkshire, United Kingdom