The Effect of Grape Seed Extract on Blood Pressure in People With Pre-Hypertension
Public ClinicalTrials.gov record NCT00979732. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Randomized, Double-blind, Placebo-controlled Trial to Investigate the Effect of Grape Seed Extract Delivered in a Beverage on Blood Pressure in Individuals With Pre-hypertension.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
In this research study, the investigators are interested in learning how extracts from grape seeds can help those individuals with high blood pressure. The investigators also hope to learn how grape seed extract effects your blood and cell functions. The grape seed extract the investigators will use in the study will be provided either in a beverage or a capsule form and is currently available on the market. This study is also using a placebo; therefore the treatment subjects receive may or may not contain the grape seed extract. The purpose of this study is to determine if the grape seed extract (GSE) will lower blood pressure in people with slightly high blood pressure (Pre-Hypertension).
Study identification
- NCT ID
- NCT00979732
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 33 participants
Conditions and interventions
Conditions
Interventions
- grape seed extract Dietary Supplement
- grape seed extract placebo Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 25 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 14, 2009
- Primary completion
- Oct 14, 2014
- Completion
- Oct 14, 2014
- Last update posted
- Feb 10, 2021
2009 – 2014
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Clinical Nutrition Research Center | Chicago | Illinois | 60616 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00979732, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 10, 2021 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00979732 live on ClinicalTrials.gov.