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Extent of Central Lymph Node Dissection in Papillary Thyroid Microcarcinoma

This study is currently recruiting participants. (see Contacts and Locations)
Verified April 2016 by Samsung Medical Center
Information provided by (Responsible Party):
Jee soo Kim, Samsung Medical Center Identifier:
First received: June 2, 2010
Last updated: April 20, 2016
Last verified: April 2016
Occult lymph node metastasis is common in micro papillary thyroid cancer. However, the role of lymph node dissection in the treatment of microPTC remains controversial. The investigators want to investigate the usefulness routine central dissection and sentinel lymph node biopsy in prognosis of micro PTC. This is a prospective randomized control study. The investigators started this study from May of 2009 and this study will be continued until Dec. 2011.

Condition Intervention Phase
Procedure: Routine central neck dissection
Phase 2
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Care Provider)
Primary Purpose: Treatment
Official Title: Sentinel Lymph Node Biopsy in the Thyroid Carcinoma; Randomized, Prospective Study

Resource links provided by NLM:

Further study details as provided by Samsung Medical Center:

Primary Outcome Measures:
  • Is routine neck node dissection necessary in micro PTC? [ Time Frame: Until 5 year follow-up. (Dec. 2016) ]

    To see the necessity of routine neck node dissection in micro PTC, we will compare the recurrence rate and other complication (e.g. hoarseness and hypocalcemia) between group I(no dissection) and group III(routine dissection) after completion of study(after 5 year f/u).

    To check the safety of this study, our result will be checked by korea institutional reveiw board every one year.

Secondary Outcome Measures:
  • The efficacy of sentinel lymph node biopsy in micro PTC [ Time Frame: Until 5 year follow-up. (Dec. 2016) ]

Estimated Enrollment: 2000
Study Start Date: May 2009
Estimated Study Completion Date: December 2020
Estimated Primary Completion Date: December 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: C group
Routine central neck dissection
Procedure: Routine central neck dissection
Level VI neck node dissection during thyroid operation
No Intervention: N group
No central neck node dissection

Detailed Description:
The investigators will assign all patients to three groups; no dissection group (Group I), sentinel lymph node biopsy only group (Group II) and routine central neck dissection group (Group III). At first, to know the necessity of routine central neck node dissection for micro PTC,the investigators will compare the result of group I and group III. Additionally, the investigators can analyze the usefulness of sentinel lymph node biopsy for substitution of routine central neck node dissection for micro PTC.

Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • papillary carcinoma of thyroid (less than 4cm)
  • no evidence of lymph node metastasis in preoperative work-up result
  • the patients who accept this study

Exclusion Criteria:

  • large thyroid cancer( > 4cm)
  • morbid
  • anticoagulation agent usage
  • endoscopic or robotic thyroid operation
  • evidence of lymph node metastasis or extrathyroidal extension in preoperative US and CT scan
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01149161

Contact: Jee Soo Kim, M.D., Ph.D. 82-2-3410-3479

Korea, Republic of
Samsung Medical Center Recruiting
Seoul, Korea, Republic of, 135-710
Contact: Jee Soo Kim, M.D., Ph.D.    82-2-3410-3479      
Sponsors and Collaborators
Samsung Medical Center
Study Chair: Jee Soo Kim, M.D., Ph.D. Samsung Medical Center
  More Information

Responsible Party: Jee soo Kim, Associate professor, Samsung Medical Center Identifier: NCT01149161     History of Changes
Other Study ID Numbers: 2009-02-017
Study First Received: June 2, 2010
Last Updated: April 20, 2016
Individual Participant Data  
Plan to Share IPD: No

Keywords provided by Samsung Medical Center:
neck dissection
sentinel lymph node

Additional relevant MeSH terms:
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Neoplasms processed this record on May 22, 2017