NCT06555952 · Clinical Nutrition Research Center, Illinois Institute of Technology
MegaNatural BP® GSE on Blood Pressure and Cardiometabolic Risk Factors
(GSEBP)
What this study is about
Inflammation and stressors can interfere with the function of the lining of blood vessels and insulin activity, therefore, investigators are aiming to see how the Grape seed Extract (GSE) called MegaNatural BP can help with limiting the effects of these factors.
View original scientific description
Inflammation and stressors can interfere with the function of the lining of blood vessels and insulin activity, therefore, investigators are aiming to see how the Grape seed Extract (GSE) called MegaNatural BP can help with limiting the effects of these factors. This research will study the effects of taking 150mg of MegaNatural BP GSE per day on blood pressure levels along with influences on heart health through assessing the function of the blood vessel lining and levels of inflammation.
Interventions
DIETARY_SUPPLEMENT
MegaNatural-BP SR 150Mg Tablet
GSE MegaNatural BP
OTHER
Placebo Capsule
given in place of GSE MegaNatural BP
Primary outcome measures
Difference in change of systolic blood pressure
Time frame: 6 weeks
After 6 weeks of 150mg GSE MegaNatural BP per day the base level blood pressure should change
Difference in change of diastolic blood pressure
Time frame: 6 weeks
After 6 weeks of 150mg GSE MegaNatural BP per day the base level blood pressure should change
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- 40-60 years of age
- BMI \< 30kg/m2
- elevated blood pressure 120-140 mmHg (systolic) / \<90 mmHg (diastolic) at screening visit
- Has fasting blood glucose concentration between 100-125 mg/dL or HbA1c 5.7-6.4%.
- Not taking any medications that would interfere with outcomes of the study, i.e. blood pressure lowering medications or anti-diabetes medications.
- Able to provide informed consent
- Able to comply and perform the procedures requested by the protocol (including dietary restrictions, consumption of study foods, records of food diary and GI tolerance questionnaire, sample collection procedures and study visit schedule)
- Able to maintain usual physical activity pattern
- Able to avoid / abstain from alcohol and vigorous physical activity for 24 hours prior to and during study visit
Exclusion criteria
- Men and women with known or suspected intolerance, allergies or hypersensitivity to study foods or interventions
- Men and women with diabetes or have documented liver, kidney, cardiac, gastrointestinal, metabolic or respiratory diseases.
- Men and women with documented physical or mental disease/condition or major surgery as revealed by history or physical examination, which might limit participation in or completion of the study or, that, in the opinion of the investigator, could interfere with the interpretation of the study results.
- Women who are known to be pregnant or who are intending to become pregnant over the course of the study
- Women who are lactating
- Taking medication or dietary supplements that may interfere with the outcomes of the study; This may include anti-inflammatory medication (ibuprofen, Aleve/naproxen, aspirin, etc.)
- Major trauma or a surgical event within 2 months (or longer depending on trauma or event) and after consultation with PI.
- Has used antibiotics within the previous 2 months
- Had colonoscopy within 3 months
- History of an eating disorder (e.g., anorexia nervosa, bulimia nervosa, or binge eating) diagnosed by a health professional
- Substance (alcohol or drug) abuse within the last 2 years
- Excessive coffee and tea consumers (\> 4 cups/d)
- Donated blood within last 3 months
- Men and women who do excessive exercise regularly or are an athlete
- Unstable weight: gained or lost weight +/- 5 kg (11 lbs) in previous 2 months
- Women who are taking unstable dose and brand of hormonal contraceptives and/or stable dose and brand less than 6 months
- Unusual working hours i.e., working overnight (e.g. 3rd shift)
- Follows a vegan diet or any extreme dietary patterns
Where
- Chicago, Illinois
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 15, 2025 · Source of record for eligibility and locations