ClinicalTrials.gov record

Terminated Early Phase 1 Interventional Accepts healthy volunteers Results available

Vascular Dysfunction in Black Individuals: Roles of Nitric Oxide and Endothelin-1

ClinicalTrials.gov ID: NCT04770155

Public ClinicalTrials.gov record NCT04770155. 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.

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ClinicalTrials.gov public records Last synced Jul 21, 2026, 6:47 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Study identification

NCT ID: NCT04770155
Recruitment status: Terminated
Study type: Interventional
Phase: Early Phase 1
Lead sponsor: University of Mississippi Medical Center; Other
Enrollment: 8 participants

Conditions and interventions

Conditions

Interventions

Dietary Nitrates 400 mg Dietary Supplement
L-citrulline 3 g Dietary Supplement
Sildenafil 100 mg Drug
Bosentan 125 mg Drug

Dietary Supplement · Drug

Eligibility (public fields only)

Age range: 18 Years to 40 Years
Sex: All
Healthy volunteers: Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: May 26, 2021
Primary completion: Sep 19, 2021
Completion: Sep 19, 2021
Last update posted: Oct 30, 2023

2021

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
University of Mississippi Medical Center	Jackson	Mississippi	39216	—

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 NCT04770155, 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 30, 2023 · Synced Jul 21, 2026

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04770155 live on ClinicalTrials.gov.

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