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Active Surveillance on Papillary Thyroid Microcarcinoma

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02938702
Recruitment Status : Active, not recruiting
First Posted : October 19, 2016
Last Update Posted : April 25, 2022
Information provided by (Responsible Party):
Young Joo Park, Seoul National University Hospital

Brief Summary:
The study is a multi-center prospective cohort study of active surveillance in papillary thyroid cancer with low risk. The purpose of the study is to observe natural course of low risk papillary thyroid cancer in Korean population, and comparison of prognosis between active surveillance group and conventional surgery group. Patient will be well informed about their choice of active surveillance or surgery.

Condition or disease
Thyroid Cancer Papillary Thyroid Microcarcinoma

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Study Type : Observational
Actual Enrollment : 1211 participants
Observational Model: Cohort
Time Perspective: Prospective
Actual Study Start Date : May 2016
Estimated Primary Completion Date : March 2025
Estimated Study Completion Date : March 2030

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Thyroid Diseases

Active surveillance
Group with active surveillance of their PTC
Group who underwent surgery after diagnosis of PTC

Primary Outcome Measures :
  1. Rate of Progression of Thyroid Papillary Microcarcinoma [ Time Frame: 5 years ]
    rate of progression: tumor size increase of ≥3 mm in at least one dimension, tumor size increase of ≥2 mm in at least two dimensions, suspected organ involvement during the follow-up, such as trachea, esophagus, nerves, vessels, or muscles in imaging study including high-resolution ultrasonography, or pathological diagnosis of lymph node/distant metastasis

Secondary Outcome Measures :
  1. Comparison of Progression Rate between Active Surveillance and Surgery Group [ Time Frame: 5 years ]
    Which group had higher progression rate; progression defined as whether tumor size increases more than 3 mm in diameter, or tumor involves new lymph nodes, or metastasis occurs

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patient aged older than 18 years with papillary thyroid microcarcinoma less than 1 cm in length, who did not meet the exclusion criteria from Seoul National University Hospital, National Cancer Center, Seoul National University Bundang Hospital, and Borame Medical Center.

Inclusion Criteria:

  • who agreed to the agreement form
  • who is older than 18 years old
  • who was diagnosed by fine needle aspiration or needle biopsy of Bethesda category V or VI
  • whose thyroid cancer is smaller than 1 cm length

Exclusion Criteria:

  • who cannot routinely follow-up according to the study schedule
  • who was diagnosed by fine needle aspiration or needle biopsy of Bethesda category I, II, III, or IV.
  • who have hyperthyroidism which needs treatment

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02938702

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Korea, Republic of
Seoul National University Hospital
Seoul, Korea, Republic of
Sponsors and Collaborators
Seoul National University Hospital
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Young Joo Park, Professor, Seoul National University Hospital Identifier: NCT02938702    
Other Study ID Numbers: 2520160010
First Posted: October 19, 2016    Key Record Dates
Last Update Posted: April 25, 2022
Last Verified: April 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided
Keywords provided by Young Joo Park, Seoul National University Hospital:
Active surveillance
Additional relevant MeSH terms:
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Thyroid Neoplasms
Carcinoma, Papillary
Thyroid Diseases
Endocrine System Diseases
Endocrine Gland Neoplasms
Neoplasms by Site
Head and Neck Neoplasms
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Neoplasms, Squamous Cell