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NCT04831398 · ClinicalTrials.gov registry record · Phase 4
The Effects of Acute Melatonin Supplementation on Cardiovascular Responses to Sympathetic Activation
A Phase 4 study of Healthy, sponsored by University of Oklahoma.
- Recruiting
- Registry status
- Phase 4
- Development phase
- 100
- Enrollment target
- 1
- Study location
NCT04831398: Recruiting Phase 4 study of Healthy, sponsored by University of Oklahoma.
NCT04831398 is a Phase 4 study of Healthy that is actively recruiting participants, run by University of Oklahoma. The registered enrollment target is 100 participants, below the 647-participant average among 1,090 other Healthy trials with a reported enrollment target (85% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04831398, a Phase 4 study of Healthy, is actively recruiting participants, sponsored by University of Oklahoma.
- RECRUITING
- Registry status
- Phase 4
- Development phase
- 100 participants
- Enrollment target
- 1
- Study location
Study Summary
the purpose of this experiment is to determine if acute melatonin supplementation alters central and peripheral cardiovascular responses to a cold pressor test at rest and during dynamic exercise.
Primary Outcome
Concentrations of Total, Oxy, and deoxyhemoglobin of Flexor Digitorum Profundus muscle of the forearm
Conditions Studied
Interventions
- OTHER Placebo
- DIETARY_SUPPLEMENT melatonin
Study Locations (1)
Oklahoma
- Department of Health and Exercise Science - Norman
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 100 participants |
| Start Date | 2023-01-01 |
| Est. Completion | 2026-12 |
| Phase | Phase 4 |
What NCT04831398 shows while recruiting
NCT04831398 is an interventional study that assigns participants to a tested intervention. The registered 100 participants enrollment target is mid-sized for trials with a published cap, below the 647-participant average among 1,090 other Healthy trials with a reported enrollment target (85% lower).
The record links to 1 condition, with Healthy appearing as the primary indexed condition, and to 2 interventions - of which Placebo is the first listed.
NCT04831398 reports a single indexed study location in Oklahoma.
Frequently Asked Questions
What is clinical trial NCT04831398 about?
NCT04831398 is a clinical study titled "The Effects of Acute Melatonin Supplementation on Cardiovascular Responses to Sympathetic Activation". the purpose of this experiment is to determine if acute melatonin supplementation alters central and peripheral cardiovascular responses to a cold pressor test at rest and during dynamic exercise.
What is the current status of trial NCT04831398?
This trial is currently recruiting. It is a Phase 4 study. The enrollment target is 100 participants. The study started on 2023-01-01. Estimated completion is 2026-12.
What conditions does trial NCT04831398 study?
This clinical trial studies the following conditions: Healthy.
What interventions are being tested in trial NCT04831398?
The interventions under investigation include: Placebo (OTHER), melatonin (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT04831398?
This trial is sponsored by University of Oklahoma, which has 358 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT04831398 being conducted?
This trial has 1 study location across Oklahoma. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Healthy
Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.
Where NCT04831398's enrollment target sits among peer trials
100 219th of 1090 higher than 851 of 1,090 other Healthy trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Healthy 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
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