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Effect of Thyrotropin Level on Iodine Uptake in Metastatic Differentiated Thyroid Cancer

NCT04880798 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2021-05-11

No results posted yet for this study

Summary

Distant metastases is the leading cause of differentiated thyroid cancer-related death. Radioactive iodine (RAI) treatment is the most effective therapy for RAI-avid metastatic differentiated thyroid cancer (DTC). It is well known that the efficacy of RAI therapy is depend on the sodium-iodide symporter protein, which can be synthesized by elevated thyrotropin stimulation. Therefore, thyrotropin stimulation before RAI treatment to ensure sufficient uptake of RAI has been a long-established procedure. According to some observational studies, thyrotropin of 25-30 μIU/mL has been adopted as the standard care protocol. However, whether thyrotropin of 25-30 μIU/mL is enough to stimulate iodine uptake in metastatic lesions remains unknown. In this study, the investigators aim to address the effect of thyrotropin on iodine uptake in metastatic DTC during levothyroxine withdrawal by two times 124I PET/CT scans on different endogenous thyrotropin levels.

Conditions

  • Differentiated Thyroid Cancer

Interventions

DIAGNOSTIC_TEST

124I PET/CT

The first 124I PET/CT was prepared with endogenous thyrotropin 30±10 μIU/mL, and the second 124I PET/CT was prepared with endogenous thyrotropin \>100 μIU/mL. The RAI-avidity of the metastases was assessed twice along with the levothyroxine withdrawal by 124I PET/CT scans.

Sponsors & Collaborators

  • Peking University Cancer Hospital & Institute

    collaborator OTHER

  • Peking Union Medical College Hospital

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-05-06
Primary Completion
2022-12-31
Completion
2022-12-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04880798 on ClinicalTrials.gov