Clinical trial NCT01751750: Grape Polyphenol Kinetics in Humans
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Healthy Volunteers
Lead sponsor: USDA Beltsville Human Nutrition Research Center
Sponsor class: FED
First posted: 2012-12-18
Enrollment: 16
Sex: ALL
Maximum age (years): 59
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: PREVENTION

Brief summary: The objectives of this study are the following: 1) to confirm that the administration of grape juice, resveratrol, and grape seed polyphenol extract results in a similar plasma and urinary metabolic profile in aged humans compared to rats, 2) to confirm that a combined administration of grape juice, resveratrol, and grape seed polyphenol extract result in a similar plasma and urinary metabolic profile in adults with tendencies toward metabolic syndrome compared to non-obese healthy humans, and 3) to identify the anti-inflammatory effects of the combined administration of grape juice, resveratrol, and grape seed polyphenol extract.


Eligibility criteria: Inclusion Criteria:

-

Exclusion Criteria:

* Age \<60 years at beginning of study
* Fasting glucose \> 126 mg/dl
* Blood pressure \> 160/100
* Fasting total blood cholesterol \> 280 mg/dl
* Fasting triglycerides \> 300 mg/dl
* Presence of kidney disease, liver disease, gout, hyperthyroidism, untreated or unstable hypothyroidism, certain cancers, gastrointestinal disease, pancreatic disease, other metabolic diseases, or malabsorption syndromes
* Presence of type 2 diabetes requiring the use of oral antidiabetic agents or insulin
* History of bariatric or certain other surgeries related to weight control
* Smokers or other tobacco users (during 6 months prior to the start of the study)
* Consumption of more than 3 servings of tea, wine, or grape juice per day
* Use of supplements containing grape extracts or products
* Use of antibiotics during the intervention or for 3 weeks prior to the intervention period
* History of eating disorders, dietary patterns, or supplement use which will interfere with the goal of the intervention
* Volunteers who have lost 10% of body weight within the last 4 months
* Volunteers who are unable or unwilling to give informed consent or communicate with study staff
* Volunteers who self-report of alcohol or substance abuse within the past 12 months and/or current acute treatment or rehabilitation program for these problems (long-term participation in Alcoholics Anonymous is not an exclusion)
* Other medical, psychiatric, or behavioral factors that in the judgment of the Principal Investigator may interfere with study participation or the ability to follow the intervention protocol

Primary outcomes:
measure: Plasma polyphenols
timeFrame: 6 hours
measure: Urinary polyphenols
timeFrame: 6 hours
Secondary outcomes:
Other outcomes:
Locations:
city: Beltsville
country: United States
facility: USDA Beltsville Human Nutrition Research Center
state: Maryland
Study officials:
affiliation: USDA Beltsville Human Nutrition Research Center
name: Janet Novotny, Ph.D.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Novotny JA, Chen TY, Terekhov AI, Gebauer SK, Baer DJ, Ho L, Pasinetti GM, Ferruzzi MG. The effect of obesity and repeated exposure on pharmacokinetic response to grape polyphenols in humans. Mol Nutr Food Res. 2017 Nov;61(11):10.1002/mnfr.201700043. doi: 10.1002/mnfr.201700043. Epub 2017 Aug 29.