Reduced Planning Target Volume (PTV) Margins for the Treatment of Prostate Cancer Using the Calypso 4D Localization System
Public ClinicalTrials.gov record NCT01589939. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Reduced PTV Margins for the Treatment of Prostate Cancer With IMRT Using Real-Time, State-of-the-Art Motion Tracking With the Calypso 4D Localization System: A Feasibility Study
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This prospective study evaluates the clinical utility of a novel real-time localization system allowing for smaller volumes of normal tissue to be included in radiation field and determines dosimetric parameters and adverse effect profiles of radiation therapy using this technology. Subjects will have beacon transponders implanted into the prostate to more precisely localize the position of the organ during radiation therapy. Hypothesis: 1. Treatment with highly targeted radiation therapy can be delivered in a daily treatment time consistent with routine clinical practice. 2. Highly targeted radiation therapy with reduced PTV margin will result in a significant decrease in rectal and bladder volume treated.
Study identification
- NCT ID
- NCT01589939
- Recruitment status
- Not listed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 40 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 40 Years and older
- Sex
- Male
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 28, 2009
- Primary completion
- Apr 30, 2017
- Completion
- Jul 31, 2017
- Last update posted
- May 16, 2016
2009 – 2017
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Madigan Healthcare System | Tacoma | Washington | 98431 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01589939, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 16, 2016 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01589939 live on ClinicalTrials.gov.