Turtle-Neck gadget could revolutionize thyroid cancer dosing
NCT ID NCT03517579
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a special collar worn around the neck that measures radiation exposure in people with thyroid cancer or Graves' disease receiving radioactive iodine therapy. The goal is to see if this device gives more accurate dosing information than current methods, potentially reducing the need for multiple clinic visits. Ten participants will wear the collar for up to 7 days while their radiation levels are tracked.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 10 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2018
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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21 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Group I * Patients with Graves' disease confirmed by laboratory testing. * Patients able to understand English and able to follow instructions. Group II * Patients with intermediate and high risk differentiated thyroid cancer requiring radioiodine remnant ablation or moderately high dose I-131 for treatment of residual cervical disease. * Persons able to understand simple English and able to follow instructions. Exclusion Criteria: * Patients with diseases involving cervical spine, such as spondylosis and severe degenerative joint disease. * Pregnant Women, elderly and persons unable to understand simple instructions
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Johns Hopkins Hospital
RECRUITINGBaltimore, Maryland, 21247, United States
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Other studies related to the condition(s) this trial covers.
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