The Evaluation of the Diagnostic Properties of Intra-operative In-situ Thyroglobin Levels of Cervical Lymph Nodes, in the Discrimination Between Benign and Malignant Lymph Nodes in Thyroid Cancer: a Prospective Multicentre Study. (Tgcyto)

July 24, 2018 updated by: Assistance Publique Hopitaux De Marseille

Cytological examination of punctured lymph nodes is the gold standard for confirming metastatic lymph node spread of differentiated thyroid cancers. In order to increase the diagnostic sensitivity of fine-needle cyto-punctured lymph nodes, an assessment of Tg levels of the aspirate could be included. Although this technique has been well proven, many uncertainties remain, especially with regards to a pathological cut-off value and its clinical utility when the thyroid is still intact. This uncertainty is mainly due to discordancy between low Tg levels found in cytopunctured lymph nodes with normal cytology, and their final histopathological analyses.

To eliminate this uncertainty, cyto-punction will be performed intra-operatively after localizing and isolating the target lymph nodes for assessment of cytology and Tg values. The thyroid gland might be present or absent (already operated) depending on the case. Finally, the cyto-punctured lymph nodes will be excised for complete histopathological analysis. In order to determine whether the Tg values are appropriate in cases where the thyroid is intact, a control group has been included (First operation for thyroid cancer or benign pathology). To eliminate the possible iatrogenic risks of lymph node dissection and resection in patients for whom it is not indicated, only lymph nodes found along the incision path for neuromonitoring of the recurrent laryngeal nerve (performed systematically) will be analysed and excised.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

110

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subject aged 18 years and above, male or female, with a valid social security coverage;
  • Subject willing to participate in the study with a signed informed consent;
  • Subject being operated for a papillary thyroid cancer, re-operated for persistent/relapsed lymphadenopathy, or for benign thyroid pathology (Graves disease, multinodular goitre, toxic nodule);
  • Subject having had a blood test for plasma Tg levels and circulating anti-Tg antibodies in the week preceding the surgical intervention.

Exclusion Criteria:

- Subjects presenting with thyroid cancers of non follicular origin

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: thyroid cancer
Other: lymph nodes cyto-punction

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
thyroglobin levels dosage
Time Frame: 7 days
7 days

Secondary Outcome Measures

Outcome Measure
Time Frame
Plasma Tg levels
Time Frame: 7 days
7 days
circulating anti-Tg antibodies levels
Time Frame: 7 days
7 days
Detection of tumor cells by staining with May-Grünwald Giemsa of lymph node cytology elements :
Time Frame: 15 days
15 days
Detection of tumors by lymph node histology
Time Frame: 15 days
15 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Assistance Publique Hopitaux De Marseille

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 18, 2013

Primary Completion (Actual)

May 17, 2017

Study Completion (Anticipated)

December 1, 2018

Study Registration Dates

First Submitted

October 22, 2015

First Submitted That Met QC Criteria

November 10, 2015

First Posted (Estimate)

November 11, 2015

Study Record Updates

Last Update Posted (Actual)

July 26, 2018

Last Update Submitted That Met QC Criteria

July 24, 2018

Last Verified

July 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2012-06
  • RC12_3625 (Other Identifier: APHM)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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