Could a gel spacer replace needle markers in prostate radiation?
NCT ID NCT05650021
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a special gel spacer placed near the rectum can help doctors aim radiation more accurately for prostate cancer. Seventeen men who already had the spacer and small metal markers (fiducials) were included. Doctors compared how well the gel spacer worked for daily alignment versus the standard markers.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- SpaceOAR Vue radiopaque hydrogel rectal spacer
- What this could lead to
- If it works, this could simplify prostate cancer radiation by removing the need for separate fiducial markers.
- What could go wrong
- This is a small, early study with only 17 participants, so results may not apply to all patients. The spacer may not align as accurately as fiducial markers.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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
-
Penn State Cancer Institute
Hershey, Pennsylvania, 17033, United States
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