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Recruiting NCT05599139

NCT05599139 Iodine Uptake After a Low Iodine Diet

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Clinical Trial Summary
NCT ID NCT05599139
Status Recruiting
Phase
Sponsor University Medical Center Groningen
Condition Differentiated Thyroid Cancer
Study Type INTERVENTIONAL
Enrollment 25 participants
Start Date 2023-02-22
Primary Completion 2026-03-30

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age 75 Years
Study Type INTERVENTIONAL
Interventions
Low iodine diet

Eligibility Fast-Check

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

This trial targets 25 participants in total. It began in 2023-02-22 with a primary completion date of 2026-03-30.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The goal of this clinical trial is to compare the difference in thyroid uptake of a low dose radioactive iodine (10 MBq 123-I or 37 MBq 123-I) in athyreotic patients with differentiated thyroid carcinoma before and after a low iodine diet (LID) of 7 days. The main question it aims to answer is: • What is the difference in iodine uptake before and after a LID of 7 days? Uptake of a low dose of 123-iodine will be measured in participants before and after a low iodine diet of 7 days. Researchers will compare the uptake (%) before and after the LID.

Eligibility Criteria

Inclusion Criteria: * Patients, men and women above the age of 18 years, have to be diagnosed with DTC and have to follow a LID prior to the 131I ablation therapy according to the Dutch DTC guideline * Patients have to be fit to adhere to the study protocol * Patients have to be able to read and understand the Dutch language Exclusion Criteria: * Age \< 18 years * Patients using amiodarone * Patients receiving iodinated contrast \< 3 months before the LID * Pregnancy * Patients prepared for ablation therapy with rhTSH * Renal impairment, EGFR \<30ml/min/1,73m2

Contact & Investigator

Central Contact

Wouter Zandee, Dr.

✉ w.t.zandee@umcg.nl

📞 +31503613731

Principal Investigator

Wouter Zandee, Dr.

PRINCIPAL INVESTIGATOR

University Medical Center Groningen

Frequently Asked Questions

Who can join the NCT05599139 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, up to 75 Years, studying Differentiated Thyroid Cancer. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT05599139 currently recruiting?

Yes, NCT05599139 is actively recruiting participants. Contact the research team at w.t.zandee@umcg.nl for enrollment information.

Where is the NCT05599139 trial being conducted?

This trial is being conducted at Groningen, Netherlands.

Who is sponsoring the NCT05599139 clinical trial?

NCT05599139 is sponsored by University Medical Center Groningen. The principal investigator is Wouter Zandee, Dr. at University Medical Center Groningen. The trial plans to enroll 25 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology