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Can 3D imaging make prostate radiation more precise and worth the cost?

NCT ID NCT00433706

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

470 people

The number who actually took part.

Start date

Jun 2007

Finished

Nov 2012

Lead sponsor

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

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

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

  • Institut Gustave Roussy

    Villejuif, 94805, France

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Other studies related to the condition(s) this trial covers.