- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01043939
Purple Grape Juice in Improving Vascular Health in Childhood Cancer Survivors (JAVA)
A Pilot Study to Evaluate the Effects of Purple Grape Juice on the Vascular Health of Childhood Cancer Survivors
Rationale: Survivors of childhood cancer are at an increased risk of developing cardiovascular risk factors as well as early cardiovascular disease, likely due to the intensive therapeutic regimen used to treat their cancer. Purple grape juice (PGJ) is a rich source of flavonoids and a powerful antioxidant. Clinical studies in both diseased and healthy adults suggest that daily consumption of PGJ contributes to increased antioxidant capacity, reduced low-density lipoprotein (LDL) oxidation, and improved vasodilation.
Purpose: This randomized clinical trial is evaluating whether purple grape juice can reduce oxidative stress and improve the vascular health of survivors of childhood cancer in the early stages of cardiovascular disease.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Primary Objective:
- To evaluate the effect of PGJ on endothelial function, a key measure of vascular health and considered a barometer for cardiovascular disease risk.
Secondary Objective:
- To evaluate the effect of PGJ on biomarkers of vascular and systemic oxidative stress.
Outline:
Patients undergo a 4-week washout period and refrain from consuming any type of juice, juice drink (less than 100% juice), wine or grapes. Patients are then randomized to 1 of 2 arms.
Arm 1: Beginning in week 4, patients consume 6 ounces of purple grape juice (PGJ) twice daily for 4 weeks. Beginning in week 12, after a 4 week washout period, patients crossover to consume apple juice (AJ) as in Arm 2.
Arm 2: Beginning in week 4, patients consume 6 ounces of AJ twice daily for 4 weeks. Beginning in week 12, after a 4 week washout period, patients crossover to consume PGJ as in Arm 1.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
-
-
Minnesota
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Minneapolis, Minnesota, United States, 55455
- Minnesota General Clinical Research Center
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Diagnosed with cancer > 5 years ago
- Off-maintenance therapy for > 36 months
- Age 10-30 years
- Reside within a 50 mile radius of the University of Minnesota
Exclusion Criteria:
- Pregnant or planning to become pregnant
- Start of oral contraceptives < or = 3 months prior to study enrollment
- Current smoker
- Diabetes (type 1 and 2)
- Antibiotic use < 2 weeks prior to study enrollment
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Purple Grape Juice First
After 4 week run-in period, drink 6 ounces of purple grape juice twice daily, then 4 week washout, week 12 drink 6 ounces of clear apple juice for 4 weeks twice daily
|
6 ounces of purple grape juice consumed twice daily either during first or second 4 week supplementation period, depending on sequence randomization
6 ounces of clear apple juice consumed twice daily either during first or second 4 week supplementation period, depending on sequence randomization
Other Names:
|
Active Comparator: Apple Juice First
After 4 week run-in period, drink 6 ounces of clear apple juice twice daily, then 4 week washout, week 12 drink 6 ounces of purple grape juice for 4 weeks twice daily
|
6 ounces of purple grape juice consumed twice daily either during first or second 4 week supplementation period, depending on sequence randomization
6 ounces of clear apple juice consumed twice daily either during first or second 4 week supplementation period, depending on sequence randomization
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Endothelial Function (Reactive Hyperemia Peripheral Arterial Tonometry (RH-PAT) Index Score)
Time Frame: 4 weeks (change since baseline)
|
Difference of least square means (95% Confidence Interval) in RH-PAT Index Scores between juice groups. Higher RH-PAT scores indicate better endothelial function; a positive difference of least square means is suggestive of an improvement in endothelial function. Probes were placed on the index fingers of both hands and a blood pressure cuff was placed on one arm. The cuff was inflated to suprasystolic pressure and the digital pulse volume was recorded before, during & after a 5 minute occlusion period. The ratio of the hyperemic and the baseline pulse amplitude (corrected for the same ratio on the control finger) was calculated and expressed as the RH-PAT index score. Lower scores reflect worse endothelial function. |
4 weeks (change since baseline)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Oxidized LDL
Time Frame: 4 weeks
|
Change from baseline in Oxidized LDL at 4 weeks, a biomarker of oxidative stress
|
4 weeks
|
Change in Myeloperoxidase (MPO)
Time Frame: 4 weeks
|
Change from baseline in Myeloperoxidase (MPO) at 4 weeks, a biomarker of oxidative stress
|
4 weeks
|
Change in High Sensitivity C-Reactive Protein (Hs-CRP)
Time Frame: 4 weeks
|
Change from baseline in high sensitivity C-Reactive Protein (hs-CRP) at 4 weeks, a biomarker of inflammation
|
4 weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Cindy K Blair, MPH, Masonic Cancer Center, University of Minnesota
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
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2009NTLS074
- NCI-2009-01497 (Registry Identifier: National Cancer Institute)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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