Effects of Miconazole on Blood Flow
Public ClinicalTrials.gov record NCT00004575. 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
Investigation of Miconazole as an Inhibitor of Endothelium-Derived Hyperpolarizing Factor
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will investigate the effect of the drug miconazole on blood vessel dilation. Miconazole stops production of EDHF, a substance that causes arteries to dilate. EDHF is produced by the cells that line blood vessels. Normal volunteers between the ages of 21 to 60 may participate in this study. Candidates will be screened for eligibility with a medical history, physical examination, electrocardiogram and routine laboratory tests. Those enrolled will be injected with miconazole to study its effects on blood vessels. Study participants will take three aspirin tablets. After administration of a local anesthetic, small tubes will be inserted through a needle into the artery and vein of the forearm. These will be used to measure blood pressure and to draw blood samples during the study. Forearm blood flow will be measured using pressure cuffs placed on the wrist and upper arm, and a strain gauge (a rubber band device) placed around the forearm. When the cuffs are inflated, blood will flow into the arm, stretching the strain gauge, and the flow measurement will be recorded. Small doses of four drugs-bradykinin, sodium nitroprusside, miconazole, and LNMMA-will be given through the arterial catheter. Bradykinin stimulates the release of EDHF and can lower blood pressure. Sodium nitroprusside causes blood vessels to dilate and is used to treat high blood pressure and heart failure. Miconazole is commonly prescribed to treat various infections, including vaginal yeast infections, jock itch and athlete's foot. In much higher doses, it is used to treat fungal infections that have spread to the lungs, brain, kidneys, or bladder. LNMMA inhibits production of nitric oxide, another substance produced by the lining cells of blood vessels. Blood flow will be measured throughout the study, which will last approximately 3 hours.
Study identification
- NCT ID
- NCT00004575
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 15 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- Not listed
- 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
- Jan 31, 2000
- Primary completion
- Not listed
- Completion
- Sep 30, 2001
- Last update posted
- Mar 3, 2008
2000 – 2001
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Heart, Lung and Blood Institute (NHLBI) | Bethesda | Maryland | 20892 | — |
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 NCT00004575, 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 Mar 3, 2008 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00004575 live on ClinicalTrials.gov.