Could a few weeks of radiation be enough for recurrent prostate cancer?
NCT ID NCT03388619
First seen Feb 01, 2026 · Last updated Jun 23, 2026 · Updated 25 times
Summary
This early-phase trial tested a shorter course of radiation for men whose prostate cancer came back after their prostate was removed. Instead of the usual 6-7 weeks of daily radiation, researchers gave higher doses over just 2-4 weeks, focusing the strongest radiation on the tumor seen on scans. The goal was to find the shortest schedule that men could tolerate without serious side effects. 30 men participated, and the study is now complete.
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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National Institutes of Health Clinical Center
Bethesda, Maryland, 20892, United States
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
radiation therapy
What this could lead to
If successful, this could lead to a shorter, more convenient radiation schedule for men whose prostate cancer returns after surgery, with fewer side effects.
What could go wrong
This is a very early phase 1 trial with only 30 participants, so it is not yet clear if the shorter schedule is as effective as the standard longer one. Side effects are still being studied.
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.