New imaging test could spare thyroid cancer patients unnecessary radiation

NCT ID NCT01704586

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether using I-124 PET/CT scans can help doctors decide which thyroid cancer patients truly need radioiodine ablation therapy. About 340 adults with newly diagnosed differentiated thyroid cancer will be assigned to either standard care or I-124-guided care. The goal is to see if the imaging approach can safely reduce unnecessary radiation exposure and improve quality of life.

What this could mean

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

Active substance

Radioiodine I-131 and I-124

What this could lead to

If successful, this approach could reduce unnecessary radiation exposure and improve quality of life for low-risk thyroid cancer patients by personalizing treatment decisions.

What could go wrong

This is an observational study without randomization, so results may not be definitive. The long-term benefits and risks compared to standard care remain uncertain.

Disclaimer Read more

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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Conditions

The condition(s) this trial relates to.

differentiated thyroid carcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Clinic of Nuclear Medicine, University Clinic Essen

    Essen, 45122, Germany

  • University Clinic Würzburg

    Würzburg, 97080, Germany