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VisionRT-based Deep Inspiration Breath-hold (DIBH) Respiratory Motion Management Strategy, A Pilot Study for Thoracic and Abdominal Tumors
NCT04686500 · View on ClinicalTrials.gov ↗
Study Summary
A more recent competing technology for implementing the DIBH technique is real-time surface photogrammetry using the AlignRT system (Vision RT Ltd., London, UK). AlignRT system use non-ionization near infrared light to track patient surface motion. The system has one projector projecting near infrared optical pattern on patient surface. The optical pattern is imaged by optical cameras (two per pod) at \~25 Hz. The user selects a region-of-interest (ROI) on the surface and the software calculates and displays the real-time position in six degrees (3 translations and 3 rotations) in real-time. Once the patient has matched the pre-determined DIBH position (within threshold accuracy), the radiation beam is enabled to be turned on for treatment.
Conditions Studied
Interventions
- DEVICE Tidal volume measured by spirometer and DIBH surface from CT image
Study Locations (1)
Texas
- UT Southwestern Medical Center — Dallas
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 10 participants |
| Start Date | 2019-03-01 |
| Est. Completion | 2023-06-21 |
| Phase | NA |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT04686500
The ClinicalTrials.gov registry entry for NCT04686500 describes a study currently listed as completed. It is categorized as NA, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 10 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is University of Texas Southwestern Medical Center, which has 742 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 2 conditions, with Thoracic Cancer appearing as the primary indexed condition, and to 1 intervention — of which Tidal volume measured by spirometer and DIBH surface from CT image is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT04686500 reports 1 study location spanning 1 distinct geographic area — top geographies include Texas. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT04686500 about?
NCT04686500 is a clinical study titled "VisionRT-based Deep Inspiration Breath-hold (DIBH) Respiratory Motion Management Strategy, A Pilot Study for Thoracic and Abdominal Tumors". A more recent competing technology for implementing the DIBH technique is real-time surface photogrammetry using the AlignRT system (Vision RT Ltd., London, UK). AlignRT system use non-ionization near infrared light to track patient surface motion. The system has one projector projecting near infrar...
What is the current status of trial NCT04686500?
This trial is currently completed. It is a NA study. The enrollment target is 10 participants. The study started on 2019-03-01. Estimated completion is 2023-06-21.
What conditions does trial NCT04686500 study?
This clinical trial studies the following conditions: Thoracic Cancer, Abdominal Cancer. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT04686500?
The interventions under investigation include: Tidal volume measured by spirometer and DIBH surface from CT image (DEVICE). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT04686500?
This trial is sponsored by University of Texas Southwestern Medical Center, which has 742 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT04686500 being conducted?
This trial has 1 study location across Texas. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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