About this trial
This study is a multicenter randomized controlled trial conducted in Korea. A parallel, two-group randomized design will be with thyroid stimulating hormone suppression therapy group(low TSH group; intervention) is different from the wIthout thyroid stimulating hormone (TSH) suppression therapy group(high TSH group; control).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Thyroid nodule of 1.0 cm or less confirmed as Bethesda category V (suspicious for PTC) or VI (PTC) based on cytopathological examination, or Bethesda category III (atypia of undetermined significance) with a confirmed BRAF V600E mutation.
Patients with no evidence of distant metastasis, cervical lymph node metastasis, recurrent laryngeal nerve invasion, or tracheal invasion. Additionally, no evidence of extrathyroidal extension (ETE) should be present, and the tumor must not belong to high-risk subtypes of PTC (e.g., diffuse sclerosing, columnar cell, or solid subtype).
Non-pregnant women of childbearing potential (confirmed by medical history taking)
Disqualifiers
Hyperthyroidism
Myocardial infarction or cerebrovascular accident within the last three months.
Diseases with limited life expectancy or potentially impairing the patient's ability to comply with at least five years of treatment or follow-up.
Trial design
Parallel
Treatments tested in this trial
Levothyroxin
DrugDuring the five-year study intervention period, thyroid hormone (oral administration) supplementary doses are determined according to a dose-adjustment protocol established for the group's target TSH range.
Treatment groups
Trial outcomes
Primary outcomes
Rate of Disease progression
The rate of disease progression will be assessed as the proportion (%) of patients with biopsy-confirmed recurrence, based on suspicious findings identified through thyroid (neck) ultrasound performed at 6- to 12-month intervals.
Secondary outcomes
Disease free survival
As the time interval from enrollment to either disease progression or all-cause mortality, whichever occurs first.
Disease specific survival
As the time from the date of enrollment to disease-specific mortality.
Overall Survival
As the time from the date of enrollment to death.
Target-TSH-level achievement rate
Comparison of between the low-TSH and high-TSH groups at each follow-up visit regarding the presence or absence of thyroid hormone use and its dosage, considering body weight and medication adherence, in order to achieve the target TSH concentration.
Locations
Sponsors and contacts
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National Cancer Center, Korea
Lead sponsor
Seoul National University Hospital
Collaborator
Seoul National University Bundang Hospital
Collaborator
This trial is not recruiting at the moment. You can still explore other options: