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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03636529
Other study ID # 0902003690
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date June 1, 2010
Est. completion date May 31, 2011

Study information

Verified date August 2018
Source University of Memphis
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

In this study, the investigators recruited at-risk individuals (n=26) who were overweight (25.0-29.9 kg/m2) and obese (> 30.0 kg/m2) and likely to exhibit one or more conditions associated with Metabolic Syndrome (MetS). In this 12-week placebo-controlled 2 x 2 crossover dietary intervention, the investigators randomized participants to consume 240 mL (8 ounces) daily of either placebo (artificial cherry-flavored, anthocyanin-free beverage) or TCJ for 4 weeks, followed by a 4-week washout period, then consumption of the alternate beverage for 4 weeks. Subsequently, the investigators determined the effect of TCJ in at-risk participants on markers of uricemia, lipidemia, glycemia, and inflammation.


Description:

In this study, the investigators recruited at-risk individuals (n=26) who were overweight (25.0-29.9 kg/m2) and obese (> 30.0 kg/m2) and likely to exhibit one or more conditions associated with MetS. Participants were >18 years of age, not pregnant, not diabetic, with no unresolved infections or diseases (diabetes, CVD, IBD, cancer and liver disease), and nonsmokers. Histories of medication and dietary supplement use were collected and those taking anti-inflammatory or lipid-lowering medications were excluded. After enrollment, participants were randomly assigned to consume daily either 240 mL (8 ounces) of TCJ diluted (1:6 v/v) from concentrate (Coloma Frozen Foods, Coloma, MI ) or a placebo beverage for 4 weeks. The placebo was prepared by combining 48.3 g each of dextrose and fructose (Batory Foods, Des Plaines, IL), food-grade red and blue dyes (2.0 mL and 0.1 mL, respectively; McCormick & Company, Inc., Sparks, MD), lemon powder drink mix (0.8 g; True Citrus, Baltimore, MD), powdered black cherry drink mix (4.0 g; Kraft Foods Group, Inc., Northfield, IL), and filtered, bottled water (local supermarket) to produce 1 liter of placebo beverage. After a 4-week washout period, participants consumed the alternate beverage for 4 weeks in this 12-week 2x2 crossover, placebo-controlled dietary intervention. Subsequently, the investigators determined the effect of TCJ in at-risk participants on markers of uricemia (sUA), lipidemia (HDL, LDL, triglycerides, VLDL, total cholesterol), glycemia (fasting insulin and glucose, HOMA, QUICKI, McAuley indirect indices), and inflammation (hsCRP, TNF-alpha, and ESR).


Recruitment information / eligibility

Status Completed
Enrollment 26
Est. completion date May 31, 2011
Est. primary completion date May 31, 2011
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria:

- This study was a 12-week 2 x 2 crossover, randomized, placebo-controlled dietary intervention in overweight and obese participants (BMI>25.0 kg/m2) who are more likely to exhibit >1 of the 5 risk conditions associated with metabolic syndrome (MetS). BMI was the minimal criterion for recruitment.

Exclusion Criteria:

- Participants were >18 years of age, not pregnant, not diabetic, with no unresolved infections or diseases (diabetes, CVD, IBD, cancer and liver disease), and nonsmokers. Histories of medication and dietary supplement use were collected and those taking anti-inflammatory or lipid-lowering medications were excluded.

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Tart cherry juice
Participants randomized to consume for 4-weeks either placebo beverage or single-strength tart cherry juice at beginning of the study followed by a 4 week washout then switch over to the alternate beverage for 4 weeks to account for timing and order effects.
Other:
Placebo
Participants randomized to consume either placebo beverage or tart cherry juice at beginning of the study followed by a 4 week washout then switch over to the alternate beverage to account for timing and order effects.

Locations

Country Name City State
n/a

Sponsors (2)

Lead Sponsor Collaborator
University of Memphis Arizona State University

Outcome

Type Measure Description Time frame Safety issue
Primary serum uric acid Hyperuricemia contributes to gout, a frequently occurring, complex rheumatologic form of inflammatory arthritis. The primary outcome measure of this study was serum uric acid and its reduction by TCJ consumption. 4 weeks
Secondary High sensitivity C-reactive protein (hsCRP) Elevated levels of hsCRP indicate inflammation. Serum levels of hsCRP as a secondary outcome measure were measured and the effect of TCJ in potentially lowering. 4 weeks
Secondary Serum triglycerides Increased serum triglycerides contribute to CVD and MetS. Serum TG was measured as a secondary outcome measure and the effect of TCJ in lowering levels. 4 weeks
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