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NCT00178477 · ClinicalTrials.gov registry record · NA
Study of Breath-holding as a Means to Reduce Tumor Motion From Breathing
A NA study, sponsored by University of Rochester.
- Terminated
- Registry status
- NA
- Development phase
- 10
- Enrollment target
NCT00178477: Clinical Trial NA study, sponsored by University of Rochester.
NCT00178477 is a NA study that was terminated before completion, run by University of Rochester. The registered enrollment target is 10 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
NCT00178477, a NA study, was terminated before completion, sponsored by University of Rochester.
- TERMINATED
- Registry status
- NA
- Development phase
- 10 participants
- Enrollment target
Study Summary
The purpose of this research study is to evaluate typical tumor motion caused by breathing using MRI and can help determine whether simple passive breathing and/or breath-holding could be used for the future treatment of similar lung and liver tumors using radiation therapy radiosurgery techniques.
Primary Outcome
1. Determine the typical and maximal tumor 3D displacements over the respiratory cycle and how these values vary depending on the tumor location 2. Determine the reproducibility of target position over multiple breath-holds 3. Determine the variability across patients in respiratory-derived lesion motion and target position reproducibility over multiple breath-holds
Interventions
- PROCEDURE MRI with breath-holding
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 10 participants |
| Start Date | 2002-01 |
| Est. Completion | 2011-01 |
| Phase | NA |
Why NCT00178477 stopped before completion
NCT00178477 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 10 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 MRI with breath-holding is the first listed.
NCT00178477 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00178477 about?
NCT00178477 is a clinical study titled "Study of Breath-holding as a Means to Reduce Tumor Motion From Breathing". The purpose of this research study is to evaluate typical tumor motion caused by breathing using MRI and can help determine whether simple passive breathing and/or breath-holding could be used for the future treatment of similar lung and liver tumors using radiation therapy radiosurgery techniques.
What is the current status of trial NCT00178477?
This trial is currently terminated. It is a NA study. The enrollment target is 10 participants. The study started on 2002-01. Estimated completion is 2011-01.
What interventions are being tested in trial NCT00178477?
The interventions under investigation include: MRI with breath-holding (PROCEDURE).
Who is sponsoring clinical trial NCT00178477?
This trial is sponsored by University of Rochester, which has 636 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00178477's enrollment target sits among peer trials
10 1927th of 2000 higher than 26 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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