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Evaluation of Diagnostic Value of Molecular Markers in Renal Cancer

NCT00491621 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 74

Last updated 2015-06-04

No results posted yet for this study

Summary

Renal cancer is frequent and its diagnosis mainly dependant on imaging. More than 50% of renal tumors are currently diagnosed without symptoms. However, 20% of small solid tumors are benign and this percentage is much higher in atypical cystic tumors Bosniak II and III, where 76% and 59% are benign respectively. Determining the malignancy by imaging in these cases is difficult and sometimes impossible. The fine needle aspiration (FNA) cytology or biopsy is necessary. The diagnostic sensitivity and specificity with biopsy are high, but the potential tumor contamination is a major risk. The FNA cytology is simple and safe, but its sensitivity is about 50%. We are conducting a multicentric prospective study to add the molecular markers in FNA cytology as a new diagnostic method in imaging-indeterminate renal tumors.

Four molecular markers including MN/CA9, vimentin, KIT, and S100A1 will be studied. These four markers have been reported to have a differential diagnostic value in renal tumors. MN/CA9 and vimentin are often found in conventional renal cancers. KIT is frequently expressed in renal oncocytomas and chromophobe renal cancers. S100A1 may further distinguish renal oncocytoma from chromophobe renal cancer. These markers will be analyzed by real time polymerase chain reaction (RT-PCR).

The aim of this study is to evaluate the diagnostic performance of the association cytology-molecular markers in imaging-indeterminate renal tumors (small solid tumors and cystic tumors ≥ Bosniak III). About 156 patients will be included in five French clinical centers including Saint-Etienne, Marseille, Grenoble, Toulouse, and Nancy.

The expected results will improve the preoperative diagnostic accuracy in renal tumors.

Conditions

  • Kidney Neoplasms

Interventions

PROCEDURE

surgery or biopsy of the kidney tumor

surgery or biopsy of the kidney tumor

Sponsors & Collaborators

  • Ministry of Health, France

    collaborator OTHER_GOV

  • Centre Hospitalier Universitaire de Saint Etienne

    lead OTHER

Principal Investigators

  • Jacques TOSTAIN, PhD-MD · CHU de Saint-Etienne

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2007-04-30
Primary Completion
2014-09-30
Completion
2014-09-30

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00491621 on ClinicalTrials.gov