Under Pressure: Arugula Extract's Effect on Blood Pressure in Hypertensive Individuals
Public ClinicalTrials.gov record NCT07904832. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this randomized, single-blind, placebo-controlled, crossover study was to investigate the acute effects of arugula extract (AE) supplementation on blood pressure, endothelial function, and circulating nitric oxide (NO) metabolites in individuals with elevated to stage 1 hypertension. Hypertension is a major contributing factor to cardiovascular disease (CVD) and is commonly associated with endothelial dysfunction and impaired NO bioavailability. Dietary nitrate supplementation has demonstrated beneficial effects on cardiovascular health through the nitrate-nitrite-NO pathway. Although nitrate-rich supplements such as beetroot juice have been extensively investigated, limited research has examined the vascular effects of arugula extract in individuals with hypertension. Sixteen adults between the ages of 18 and 50 years with elevated to stage 1 hypertension participated in the study. Participants completed two experimental conditions in randomized order: 4,000 mg of arugula extract, providing approximately 400 mg of dietary nitrate, and 4,000 mg of psyllium husk placebo. Each condition was separated by a minimum 72-hour washout period to minimize potential carryover effects. During each experimental condition, participants underwent baseline cardiovascular and vascular assessments before consuming the assigned supplement. Systolic blood pressure, diastolic blood pressure, heart rate, and venous blood samples were collected at baseline and 1, 2, 3, and 24 hours following supplementation. Endothelial function was assessed through brachial artery flow-mediated dilation (FMD) at baseline, 3 hours, and 24 hours post-supplementation. Blood samples were analyzed to assess circulating nitrate, nitrite, and total NO metabolites. The primary objective was to determine whether acute arugula extract supplementation improved endothelial function and reduced blood pressure compared with placebo. Secondary objectives included evaluating changes in circulating NO metabolites. This investigation sought to determine the potential of arugula extract as a dietary nitrate intervention for improving vascular health in individuals with elevated blood pressure.
Study identification
- NCT ID
- NCT07904832
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 16 participants
Conditions and interventions
Conditions
Interventions
- Arugula Extract Dietary Supplement
- Psyllium Husk Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 18 Years to 50 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
- Sep 11, 2025 (Actual)
- Primary completion
- Jul 14, 2026 (Actual)
- Completion
- Jul 14, 2026 (Actual)
- Last update posted
- Oct 29, 2026
2025 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Marrs Mclean Gym | Waco | Texas | 76706 | — |
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 NCT07904832, 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 Oct 29, 2026 · Synced Nov 3, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT07904832 live on ClinicalTrials.gov.