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NCT06500338 · ClinicalTrials.gov registry record · NA
Determining the Dose Response Profile of the Headward Fluid Shift During Varying Gravity Levels
A NA study, sponsored by National Aeronautics and Space Administration (NASA).
- Completed
- Registry status
- NA
- Development phase
- 9
- Enrollment target
NCT06500338: Completed NA study, sponsored by National Aeronautics and Space Administration (NASA).
NCT06500338 is a NA study that has completed, run by National Aeronautics and Space Administration (NASA). The registered enrollment target is 9 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT06500338, a NA study, has completed, sponsored by National Aeronautics and Space Administration (NASA).
- COMPLETED
- Registry status
- NA
- Development phase
- 9 participants
- Enrollment target
Study Summary
Parabolic flight provides a unique opportunity to evaluate the acute changes associated with varying levels of gravity and to describe how key venous parameters change at levels less than normal Earth gravity. Characterizing these changes in response to varying G-levels is an important step in determining what G-level may be required to reverse weightlessness-induced fluid shifts and thus serve as a viable countermeasure during long-duration spaceflight. Further, these results will inform National Aeronautics and Space Administration (NASA) whether there might be a lower risk of Spaceflight Associated Neuro-ocular Syndrome (SANS) and Venous Thromboembolism (VTE) during extended stays on the Moon and Mars.
Primary Outcome
ultrasound measures of the bilateral Internal jugular vein with numeric blood flow characterization
Interventions
- PROCEDURE free-fall
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 9 participants |
| Start Date | 2022-07-21 |
| Est. Completion | 2024-04-17 |
| Phase | NA |
What the finished NCT06500338 record still lists
NCT06500338 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 9 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower).
The record links to 0 conditions, and to 1 intervention - of which free-fall is the first listed.
NCT06500338 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT06500338 about?
NCT06500338 is a clinical study titled "Determining the Dose Response Profile of the Headward Fluid Shift During Varying Gravity Levels". Parabolic flight provides a unique opportunity to evaluate the acute changes associated with varying levels of gravity and to describe how key venous parameters change at levels less than normal Earth gravity. Characterizing these changes in response to varying G-levels is an important step in deter...
What is the current status of trial NCT06500338?
This trial is currently completed. It is a NA study. The enrollment target is 9 participants. The study started on 2022-07-21. Estimated completion is 2024-04-17.
What interventions are being tested in trial NCT06500338?
The interventions under investigation include: free-fall (PROCEDURE).
Who is sponsoring clinical trial NCT06500338?
This trial is sponsored by National Aeronautics and Space Administration (NASA), which has 8 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT06500338's enrollment target sits among peer trials
9 1975th of 2000 higher than 25 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
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