New tracer maps brain inflammation in healthy people

NCT ID NCT06398392

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

Summary

This completed study tested a radioactive tracer called [18F]PBR111 in 6 healthy adults (3 men, 3 women) to see how it spreads in the body and how much radiation it gives off. The tracer is designed to attach to a protein that appears during brain inflammation, which could help doctors spot conditions like Alzheimer's or multiple sclerosis. The goal was to measure radiation dosimetry and biodistribution using PET/CT scans over 120 minutes.

What this could mean

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

Active substance
[18F]PBR111 (radioactive tracer)
What this could lead to
If successful, this could help develop better PET scans to detect brain inflammation in diseases like Alzheimer's or multiple sclerosis.
What could go wrong
This is a very small, early study in just 6 healthy people. It only measures radiation exposure, not treatment effects, so it won't directly help patients yet.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

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

Contacts and locations

Locations

  • Geneva University Hospital

    Geneva, Switzerland

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