New dye could sharpen PET scans for recurrent brain cancer
NCT ID NCT04044937
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study tested whether a special dye called fluoroethyltyrosine (FET) can improve PET scans for detecting brain tumors that have come back. 143 people with suspected recurrent brain tumors received an injection of FET before their PET scan. The goal was to see if FET-PET could accurately tell the difference between tumor regrowth and harmless treatment-related changes.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- F-18 Fluoroethyltyrosine (FET)
- What this could lead to
- If successful, this imaging agent could help doctors more accurately detect recurrent brain tumors on PET scans, leading to better treatment decisions.
- What could go wrong
- This is a phase 2 trial, so results are still preliminary. The dye may not prove significantly better than current imaging methods, and its availability may be limited.
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
-
University of California, San Francisco
San Francisco, California, 94115, United States
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