NCT06971965

Brief Summary

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).

Trial Health

65
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
578

participants targeted

Target at P75+ for not_applicable

Timeline
81mo left

Started Jun 2025

Longer than P75 for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress12%
Jun 2025Dec 2032

First Submitted

Initial submission to the registry

April 27, 2025

Completed
17 days until next milestone

First Posted

Study publicly available on registry

May 14, 2025

Completed
19 days until next milestone

Study Start

First participant enrolled

June 2, 2025

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2032

Last Updated

May 14, 2025

Status Verified

May 1, 2025

Enrollment Period

2.6 years

First QC Date

April 27, 2025

Last Update Submit

May 7, 2025

Conditions

Keywords

Active Surveillance

Outcome Measures

Primary Outcomes (1)

  • 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.

    at 3,5years after enrollment

Secondary Outcomes (10)

  • Disease free survival

    at 3,5years after enrollment

  • Disease specific survival

    at 3,5years after enrollment

  • Overall Survival

    at 3,5years after enrollment

  • Target-TSH-level achievement rate

    at 3,5years after enrollment

  • Incidence of complications

    at 3,5years after enrollment

  • +5 more secondary outcomes

Study Arms (2)

low TSH group

EXPERIMENTAL

0.3 ≤ target TSH \<2.0mIU/L

Drug: Levothyroxin

high TSH group

EXPERIMENTAL

2.0 ≤ target TSH \<8.0mIU/L

Drug: Levothyroxin

Interventions

During 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.

high TSH grouplow TSH group

Eligibility Criteria

Age19 Years - 79 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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)

You may not qualify if:

  • Hyperthyroidism
  • If the investigator determines that you are not suitable for clinical research participation considering the following comorbidities:
  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Thyroid NeoplasmsThyroid Cancer, Papillary

Interventions

Thyroxine

Condition Hierarchy (Ancestors)

Endocrine Gland NeoplasmsNeoplasms by SiteNeoplasmsHead and Neck NeoplasmsEndocrine System DiseasesThyroid DiseasesAdenocarcinoma, PapillaryAdenocarcinomaCarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic Type

Intervention Hierarchy (Ancestors)

Thyroid HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsAmino Acids, AromaticAmino Acids, CyclicAmino AcidsAmino Acids, Peptides, and Proteins

Study Officials

  • Eun Kyung Lee

    National Cancer Center

    PRINCIPAL INVESTIGATOR
  • Young Joo Park

    Seoul National University Hospital

    PRINCIPAL INVESTIGATOR
  • Minjoo Kim

    Seoul National University Bundang Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Eun Kyung Lee

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 27, 2025

First Posted

May 14, 2025

Study Start

June 2, 2025

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2032

Last Updated

May 14, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will not share