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Thyroid hormone replacement after radioiodine treatment for thyroid cancer

Observes thyroid hormone pills in adults with thyroid cancer after stopping hormones before radioiodine.

Plain-language title generated from the registry record
Registry title: Thyroid Hormone Replacement After Radio Iodine: Value and Efficacy

Key facts

Where
Groningen and Nijmegen, NetherlandsSee the 2 sites

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 75 years old?

Source: NCT06647602, who can take part

Where in Netherlands

  • University Medical Center Groningen (UMCG)Groningen, NetherlandsNo longer taking part
  • Radboud University NijmegenNijmegen, NetherlandsNo longer taking part

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
University Medical Center Groningen
Trial code
NCT06647602EU 2024-511668-10-00
Record updated
10 February 2026
Original description
This study will be a multicentre prospective cohort study on TH-substitution after thyroid hormone withdrawal preceding radioiodine treatment.Read full original descriptionShow less

Thyroid Hormone Replacement After Radio Iodine: Value and Efficacy

This study will be a multicentre prospective cohort study on TH-substitution after thyroid hormone withdrawal preceding radioiodine treatment.

Inclusion: Histologically confirmed DTC (papillary thyroid carcinoma, follicular thyroid carcinoma, oncocytic thyroid carcinoma); Classified as high-risk DTC according to the ATA guidelines or, patients for whom the risk of a recurrence is estimated to be higher based on clinical features (assessed by their treating physician); Prepared for RAI-therapy with TH-withdrawal; Patients must be fit to adhere to the study protocol; Patients must be able to read and understand the Dutch language.

Exclusion: Patients using proton-pomp inhibitors; Patients with comorbidities, such as severe heart failure, (poorly controlled) atrial fibrillation, of which the treating physician decides that L-T3 is unsuitable; Conditions or drugs interfering with thyroid hormone uptake:; Patients with a history of atrophic gastritis; Pregnancy.

ClinicalTrials.gov NCT06647602 · EU CTIS 2024-511668-10-00