- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01832701
Coffee, Exercise, and Oxidative Stress
Coffee and Oxidative Stress During Exercise in Healthy Humans
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Coffee is one of the most widely consumed beverages. It contains polyphenols (chlorogenic acids) and bioavailability of these bioactive compounds is now somewhat well understood. However, even if chlorogenic acids are known to be antioxidants in the cup, reliable evidence remains to be observed in vivo.
After medical examination and approval, subjects will undergo 2 periods of 21 days. The first 7 days will consist of a dietary restriction to lower the polyphenols intake. Then subjects will drink at random one of the three treatments for 14 days (4 cups/day). Blood and urine samples will be collected throughout the study to evaluate in vivo effects on oxidative biomarkers. Furthermore, at day 21, subjects will undergo a physical regimen to increase acutely and transiently their oxidative damage. Blood and urine samples collected throughout this challenge will allow us to evaluate the effect of coffee intake in reducing oxidative damage created by exercise compared to placebo.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Lausanne, Switzerland, 1000
- Clinical Development Unit / Metabolic Unit
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy
- Normal and overweight subjects (BMI 19 - 29), with lean mass below the 90th percentile value
- Coffee drinkers with an average consumption of 1-3 cups per day
- Having given informed consent
- VO2 max as a function of age and gender, not higher than the values below:
Max oxygen uptake (VO2max, in ml/kg/min) in non athletes Age Males Females 20-29 49 41 30-39 47 39 40-49 45 37
Exclusion Criteria:
- Digestive (intestinal, gastric, hepatic or pancreatic), renal or metabolic disease, as determined by the medical (screening) visit and a blood chemistry analysis (glucose, cholesterol, LDL, HDL, triglycerides, aspartate transaminase (ASAT), Alanine transaminase (ALAT), C reactive Protein (CRP), creatinin)
Subjects at cardio-vascular risk rated as intermediate or high (according to the Swiss Society of Cardiology, lipids group (www.agla.ch/p11-1-2.html), meaning those who show at least one of the following criteria:
- History of coronary disease / atherosclerosis
- Diabetes
- High level of risk (familial hypercholesterolemia, hyperlipoproteinemia type III, hypertension)
- Metabolic syndrome defined by the presence of at least 3 out of the following criteria :
Abdominal circumference > 102 cm in men, > 88 cm in women Fasting triglycerides ≥ 1.7 mmol/l HDL-cholesterol < 1.0 mmol/l in men, < 1.3 mmol/l in women Systolic arterial blood pressure ≥ 130 mm Hg and/or diastolic arterial blood pressure ≥ 85 mm Hg Plasma glucose ≥ 6.1 mmol/l
- Anemia (Erythrocytes < 4.6 T/l (male) or < 4.2 T/l (women); Hemoglobin Hb < 13 g/dl (male) or Hb < 12 g/dl (women); Hematocrit Ht < 40% (male) or Ht < 37% (women); sera iron < 0.6 mg/l or plasma ferritin < 120 microg /l (male) or < 60 microg/l (non menopausal women)
- Troubles of hemostasis as determined by platelets number, prothrombin time and activated partial thromboplastin time
- Have had a gastrointestinal surgery, except appendicectomy
- Pregnancy
- History of food or medication allergy
- Have a regular consumption of medication (only those impacting oxidative stress biomarkers (eg. impacting the metabolism of lipids / LDL / VLDL), oral contraception excepted)
- Have taken antibiotic therapy within the last 3 months
- Smokers (more than 5 cigarettes per day)
- Having given blood within the last month, or willing to make a blood donation until one month following the end of the study
- Have a high alcohol consumption (more than 2 drinks/day)
- Taking more than 3 cups of coffee per day
- Consumption of illicit drugs
- Subject who cannot be expected to comply with the study procedures, including consuming the test products.
- Currently participating or having participated in another clinical trial during the last month prior to the beginning of this study.
Study Plan
How is the study designed?
Design Details
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: coffee
4 cups of soluble coffee per day (2.5g per cup)
|
maltodextrine with caffeine
|
Placebo Comparator: Maltodextrine with caffeine
4 cups per day containing 2.5 g of product each
|
coffee versus placebo
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
oxidative stress
Time Frame: Change in oxidative stress from baseline to the last day of a 14-day period of product intake
|
Oxidative stress will be assessed though urine beta-isoprostane measurements
|
Change in oxidative stress from baseline to the last day of a 14-day period of product intake
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Bioavailability of coffee antioxidative compounds
Time Frame: Change in urine phenolic and chlorogenic acids from baseline to the last day of a 14-day period of product intake
|
Measures of phenolic and chlorogenic acids in urine
|
Change in urine phenolic and chlorogenic acids from baseline to the last day of a 14-day period of product intake
|
Collaborators and Investigators
Investigators
- Principal Investigator: Maurice Beaumont, MD, Clinical Development Unit / Metabolic Unit
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 10.38.MET
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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