NCT02888717

Molecular Biology Analysis for Para-aortic Nodes in the Ultra-staging of Advanced Cervical Cancers

Concordance Study of Molecular Biology Analysis for Para-aortic Nodes in the Ultra-staging of Advanced Cervical Cancers (GYNOSNA)

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 16 (actual)
• Sponsor: Institut Cancerologie de l'Ouest · Academic / Other
• Sex: Female
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The para-aortic lymph node involvement in the advanced stage of cervical cancer is a poor prognostic factor for overall survival. Concomitant chemo-radiotherapy has become the standard treatment for advanced cervical cancer. In case of para-aortic lymph node involvement, an extension of radiotherapy fields is recommended. A prospective multicentre study shown that the survival rate of patients with node ≤ 5 mm and which benefited from the expansion of radiotherapy fields was identical to the survival of pN0 patients. However, due to a specific disease, this technique should not be performed in all patients. It is necessary to reliably select patients with retroperitoneal lymph node involvement. For this, it is recommended that prior to the concurrent chemo-radiotherapy, nodal staging surgery with a definitive histological analysis. So we propose to use molecular diagnostic test OSNA (One Step Nucleic Acid Amplification) to improve lymph node metastasis detection sensitivity to achieve ultra-staging compared to conventional histology.

Detailed description

The para-aortic lymph node involvement in the advanced stage of cervical cancer is a poor prognostic factor for overall survival. Concomitant chemoradiotherapy has become the standard treatment for advanced cervical cancer. In case of para-aortic lymph node involvement, an extension of radiotherapy fields is recommended. A prospective multicenter study shown that the survival rate of patients with node ≤ 5 mm and which benefited from the expansion of radiotherapy fields was identical to the survival of pN0 patients. However, due to a specific disease, this technique should not be performed in all patients. It is necessary to reliably select patients with retroperitoneal lymph node involvement. For this, it is recommended that prior to the concurrent chemoradiotherapy, nodal staging surgery with a definitive histological analysis. So we suggest using molecular diagnostic test OSNA (One Step Nucleic Acid Amplification) to improve lymph node metastasis detection sensitivity to achieve ultra-staging compared to conventional histology. We propose to consider a new concordance study to assess the feasibility of the technical OSNA in a new indication: cervical cancer. The analysis protocol of a concordance study is the same regardless of the location of the cancer. We evaluate the use of OSNA in order to ultrastaging of lymph node involvement for patients with advanced cancer of the cervix. Our hypothesis is that OSNA would be: * better than the usual histological staging method * and equivalence in terms of sensitivity and specificity compared to intensive histological method To complete this study we propose to search the initial brain tumor expression of cytokeratin 19.

Conditions

• Advanced Cervical Cancer

Interventions

Type	Name	Description
PROCEDURE	'OSNA stadification during surgery'	The para-aortic dissection surgery is performed in the usual way. The lymph nodes are isolated from fat tissue during surgery, and cut into 4 slices sterile. * Slices A and C are sent OSNA analysis * Slices B and D are sent ultimately histological analysis (1 cup HES or 5 cup HES + IHC) The nodes of less than 5 mm will be sent in final histological analysis due to the inability to cut into 4. After the analysis, the report indicates whether the node is: * Free (-): \<250 copies * Micrometastatic (+): 250 ≤ - \<5,000 copies, * Macrometastatic (++): ≥ 5000 copies.

Timeline

• Start date: 2015-04-28
• Primary completion: 2018-11-13
• Completion: 2018-11-13
• First posted: 2016-09-05
• Last updated: 2020-03-24

Locations

1 site across 1 country: France