Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT04283630 · ClinicalTrials.gov registry record · NA
Nitrate and Vitamin C on Vascular Health Oxidative Stress
A NA study, sponsored by David Travis Thomas.
- Completed
- Registry status
- NA
- Development phase
- 23
- Enrollment target
NCT04283630: Completed NA study, sponsored by David Travis Thomas.
NCT04283630 is a NA study that has completed, run by David Travis Thomas. The registered enrollment target is 23 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04283630, a NA study, has completed, sponsored by David Travis Thomas.
- COMPLETED
- Registry status
- NA
- Development phase
- 23 participants
- Enrollment target
Study Summary
The objective of this study is to examine whether the co-administration of dietary nitrate combined with vitamin C for 4 weeks in patients at risk for CVD would yield robust effects on endothelial function using blood measures and a non-invasive technique (Peripheral Artery Tonometry) compared to dietary nitrate supplementation alone.
Primary Outcome
Non-invasive technique called peripheral artery tonometry reactive hyperemia (PAT-RH)
Interventions
- DIETARY_SUPPLEMENT Placebo
- DIETARY_SUPPLEMENT Dietary nitrate in the form of beetroot juice for all participnats
- DIETARY_SUPPLEMENT Nature Made vitamin c 1000 mg
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 23 participants |
| Start Date | 2018-02-05 |
| Est. Completion | 2019-12-13 |
| Phase | NA |
What the finished NCT04283630 record still lists
NCT04283630 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 23 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 3 interventions - of which Placebo is the first listed.
NCT04283630 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04283630 about?
NCT04283630 is a clinical study titled "Nitrate and Vitamin C on Vascular Health Oxidative Stress". The objective of this study is to examine whether the co-administration of dietary nitrate combined with vitamin C for 4 weeks in patients at risk for CVD would yield robust effects on endothelial function using blood measures and a non-invasive technique (Peripheral Artery Tonometry) compared to di...
What is the current status of trial NCT04283630?
This trial is currently completed. It is a NA study. The enrollment target is 23 participants. The study started on 2018-02-05. Estimated completion is 2019-12-13.
What interventions are being tested in trial NCT04283630?
The interventions under investigation include: Placebo (DIETARY_SUPPLEMENT), Dietary nitrate in the form of beetroot juice for all participnats (DIETARY_SUPPLEMENT), Nature Made vitamin c 1000 mg (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT04283630?
This trial is sponsored by David Travis Thomas, which has 5 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04283630's enrollment target sits among peer trials
23 1755th of 2000 higher than 245 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT03616041 · 23 participants
Capsule Endoscopy for Severe Hematochezia
- NCT04348747 · 23 participants · Phase 2
Dendritic Cell Vaccines Against Her2/Her3 and Pembrolizumab for the Treatment of Brain Metastasis From Triple Negative Breast Cancer or HER2+ Breast Cancer
- NCT04587687 · 23 participants · Phase 2
Brentuximab Vedotin and Bendamustine for the Treatment of Relapsed or Refractory Follicular Lymphoma
- NCT04715022 · 23 participants · Phase 1
Sympathetic-vascular Dysfunction in Obesity and Insulin Resistance (Vitamin C Study)
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI