Can 3D imaging make prostate radiation more precise and worth the cost?
NCT ID NCT00433706
First seen Aug 17, 2026 · Last updated Aug 18, 2026 · Updated 1 time
Summary
This trial tests whether using 3D on-board imaging before each radiation session improves accuracy and outcomes for men with prostate cancer compared to standard imaging. The study tracks disease-free survival, side effects, and costs over 2 to 5 years. It aims to find the best imaging strategy that balances effectiveness with expense.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- 3D on-board imaging (cone-beam imaging) during radiation therapy
- What this could lead to
- If effective, this could establish 3D imaging as a standard, cost-effective way to improve radiation accuracy and reduce side effects in prostate cancer treatment.
- What could go wrong
- The trial is early in assessing long-term outcomes, and the cost-effectiveness may not favor routine use. There is also a risk that more frequent imaging could increase costs without significantly improving survival.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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470 people
The number who actually took part.
- Start date
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Jun 2007
- Finished
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Nov 2012
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * prostate adenocarcinoma * intermediate / high risk group * N0 or N - * treatment by conformal radiotherapy (including or not IMRT), with or without androgen deprivation Exclusion Criteria: * pelvic irradiation * metal objects in the pelvis
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Institut Gustave Roussy
Villejuif, 94805, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- A scanner in the operating room could show surgeons exactly where prostate cancer remains
- New PET tracer aims to light up hidden cancer targets
- Can daily adaptive radiotherapy spare healthy tissue in prostate cancer?
- Can a radioactive tracer and MRI reveal prostate Cancer's true extent?
- Five-Fraction radiation plus hormone therapy tested against High-Risk prostate cancer
- Can a 10-Hour eating window fight cancer fatigue?