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NCT01785030 · ClinicalTrials.gov registry record · Phase 1
Nitrous Oxide Vasodilation Healthy Adult Volunteers
A Phase 1 study, sponsored by Columbia University.
- Terminated
- Registry status
- Phase 1
- Development phase
- 7
- Enrollment target
NCT01785030: Clinical Trial Phase 1 study, sponsored by Columbia University.
NCT01785030 is a Phase 1 study that was terminated before completion, run by Columbia University. The registered enrollment target is 7 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (88% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01785030, a Phase 1 study, was terminated before completion, sponsored by Columbia University.
- TERMINATED
- Registry status
- Phase 1
- Development phase
- 7 participants
- Enrollment target
Study Summary
Nitrous oxide (N2O) is a gas that is normally used to take away pain and anxiety during painful medical procedures. However, one of its effects is to also make veins appear larger and more visible. This is useful when there is a patient who needs to have an intravenous (IV) needle put in their skin to give them medicine or fluids, but may have veins that are very hard to see or feel. The mechanism of this observed effect is not entirely clear. The purpose of this study is to use an ultrasound to directly measure whether there is an actual change size of veins or change in blood flow in healthy adult volunteers when you give them 50% nitrous oxide, and see whether or not this change in size, or change in flow, is what causes the changes in visibility or palpability of the vein.
Interventions
- DRUG 50% Nitrous oxide
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 7 participants |
| Start Date | 2013-02 |
| Est. Completion | 2017-02 |
| Phase | Phase 1 |
Why NCT01785030 stopped before completion
NCT01785030 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 7 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (88% lower).
The record links to 0 conditions, and to 1 intervention - of which 50% Nitrous oxide is the first listed.
NCT01785030 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT01785030 about?
NCT01785030 is a clinical study titled "Nitrous Oxide Vasodilation Healthy Adult Volunteers". Nitrous oxide (N2O) is a gas that is normally used to take away pain and anxiety during painful medical procedures. However, one of its effects is to also make veins appear larger and more visible. This is useful when there is a patient who needs to have an intravenous (IV) needle put in their skin ...
What is the current status of trial NCT01785030?
This trial is currently terminated. It is a Phase 1 study. The enrollment target is 7 participants. The study started on 2013-02. Estimated completion is 2017-02.
What interventions are being tested in trial NCT01785030?
The interventions under investigation include: 50% Nitrous oxide (DRUG).
Who is sponsoring clinical trial NCT01785030?
This trial is sponsored by Columbia University, which has 958 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT01785030's enrollment target sits among peer trials
7 1972nd of 2000 higher than 27 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 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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