RecruitingPhase 1NCT03647358

Lesion Dosimetry With Iodine-124 in Metastatic Thyroid Carcinoma


Sponsor

Memorial Sloan Kettering Cancer Center

Enrollment

60 participants

Start Date

Aug 21, 2018

Study Type

INTERVENTIONAL

Conditions

Summary

The purpose of this study is to evaluate a new diagnostic imaging test, positron emission tomography (PET), with a different radioactive form of iodine called iodine-124. This form is able to accurately measure the amount of radioactive iodine uptake in the cancer. If the new test determines sufficient radioiodine uptake in the cancer, treatment will continue as usual. However, if the new test shows only low radioiodine uptake, a decision may be made that the benefit from radioiodine therapy is insufficient and that another form of therapy is preferred.


Eligibility

Min Age: 18 Years

Plain Language Summary

Simplified for easier understanding

This trial is using a special imaging scan (with a radioactive tracer called iodine-124) to measure how much radiation reaches individual cancer spots in patients with thyroid cancer that has spread, helping doctors personalize the radioactive iodine treatment dose. **You may be eligible if...** - You are an adult with thyroid cancer confirmed by a tissue biopsy - You have already had your entire thyroid gland removed (total thyroidectomy) - You have cancer that has spread to other parts of the body (metastatic disease), or there is a suspicion it has spread - You are scheduled to receive radioactive iodine treatment **You may NOT be eligible if...** - You are pregnant or breastfeeding - Your kidneys are not functioning well enough - You have had a recent CT scan using iodine-based contrast dye (within the last few months) - You are unable to stop thyroid hormone medication for the required period before the scan - You have a significant allergy to iodine Talk to your doctor to see if this trial is right for you.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DEVICEPET/CT Scan

Up to four whole-body PET scans (approximately 24, 48, and 120 hours post 124I oral dose) will be performed on one of the GE Discovery 710 or 690 PET scanners.

DRUGIodine-124

Patients will receive 0.9 mg injections of rhTSH on two consecutive days. Twenty-four hours after the last injection of rhTSH each patient will receive approximately 5 mCi (range: 4-7 mCi) of 124I orally as a single dose. (If a holiday is present in the work week, 124I can be administered orally on Day 2, if needed).


Locations(1)

Memorial Sloan Kettering Cancer Center

New York, New York, United States

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NCT03647358


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