Could a tiny implant shield the rectum from radiation damage?

NCT ID NCT05354427

Completed Disease control Sponsor: BioProtect Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study looked at a small implantable spacer placed between the prostate and rectum in men receiving radiation for prostate cancer. The goal was to see if the spacer reduces the radiation dose reaching the rectum, potentially lowering side effects. A total of 175 men who already had the spacer and radiation took part. Researchers measured changes in rectal radiation dose before and after spacer placement.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: implantable spacer (a gel-like device placed between the prostate and rectum)
What this could lead to: If effective, this spacer could become a standard tool to reduce rectal side effects from radiation, making treatment safer and more tolerable.
What could go wrong: This is a completed observational study, not a randomized trial, so it cannot prove the spacer works better than no spacer. Individual results may vary.

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.

prostate cancer

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

PROSTATE CANCER

Contacts and locations

Locations

Cuf Porto institution

Porto, Portugal
Institute of Maria Skłodowska, Curie (MCMCC)

Warsaw, Poland

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