Can a second dose of radioactive iodine catch hidden thyroid cancer?
NCT ID NCT07453225
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether giving more radioactive iodine can help people with differentiated thyroid cancer whose tumor marker (thyroglobulin) is high but whose scans show nothing. One hundred adults who have already had their thyroid removed and one round of radioactive iodine will get an extra dose. The main goal is to see if the tumor marker drops after treatment.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
radioactive iodine
What this could lead to
If it works, this could offer a way to control thyroid cancer when standard scans show nothing.
What could go wrong
This is an early-phase trial with only 100 people, so results may not apply widely. The treatment may not lower tumor markers or could cause side effects.
Disclaimer
Read more
Show less
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.
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.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for DIFFERENTIATED THYROID CANCER are added.
By submitting, you agree to our Terms of use
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
Show contact details
Enter your email to view the contact information for this study.
By submitting, you agree to our Terms of use
Study contacts
-
Contact
Phone: •••-•••-•••• Email: •••••@•••••