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Comparison of I-124 PET/CT, F-18 FDG PET/CT & I-123 Whole Body Scintigraphy for Recurrent Thyroid CA

Comparison of I-124 PET/CT, F-18 FDG PET/CT and I-123 Whole Body Scintigraphy for Recurrent Thyroid Cancer Detection

Status
Withdrawn
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00373711
Enrollment
0
Registered
2006-09-08
Start date
2007-05-31
Completion date
Unknown
Last updated
2022-06-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Thyroid Cancer

Brief summary

The management of thyroid cancer patients with suspicion of recurrent disease based on rising/detectable levels of thyroglobulin (Tg) involves imaging with iodine-123 whole body scintigraphy (I-123 WBS) and F-18 FDG PET/CT. However, the disease is not always detected. The use of another iodine isotope (I-124) with positron emitting characteristics for PET/CT may allow better identification of recurrent disease, thus allowing for more patients to be treated with I-131 as a curative attempt.

Detailed description

The management of thyroid cancer patients with suspicion of recurrent disease based on rising/detectable levels of thyroglobulin (Tg) involves imaging with iodine-123 whole body scintigraphy (I-123 WBS) and F-18 FDG PET/CT. However, the disease is not always detected. The use of another iodine isotope (I-124) with positron emitting characteristics for PET/CT may allow better identification of recurrent disease, thus allowing for more patients to be treated with I-131 as a curative attempt. Conducting this study we hope to find whether I-124 PET/CT allows for detection of more lesions in patients with suspected recurrent thyroid cancer than the current standard of care represented by I-123 WBS and F-18 FDG PET/CT.

Interventions

2 mCi, oral

DRUGIodine-123

2 mCi, oral

10-15 mCi, iv

Sponsors

Stanford University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

- Patient at Nuclear Medicine clinic at Stanford University Medical Center * Treated thyroid cancer. * Detectable levels of Tg. * Referred for I-123 WBS and F-18 FDG PET/CT for detection of recurrent thyroid cancer. * Able to have a I-124 PET/CT the day after I-123 WBS and F-18 FDG PET/CT * Patients older than 18-year-old. * Patients with history of treated thyroid cancer and suspected recurrent thyroid cancer based on detectable levels of Tg. * Patients must have I-123 WBS and F-18 FDG PET/CT performed prior to the I-124 PET/CT. * Patients must understand and voluntarily sign an Informed Consent form after the contents have been fully explained to them.

Exclusion criteria

- Patients who are not eligible for I-123 WBS and F-18 FDG PET/CT. * Patients who cannot complete I-123 WBS and F-18 FDG PET/CT. * Pregnant women. * Healthy volunteers. * Patients participating in other research studies.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026