- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01038544
Endobronchial Ultrasound (EBUS) for Nodal Staging in Esophageal Cancer (CT0003)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Problem:
Endoscopic ultrasound techniques are becoming more and more popular. The safety of these technologies has been demonstrated on multiple occasions. These minimally invasive trans-luminal techniques do not require general anesthesia and can be performed, rapidly, accurately and at low cost. Endobronchial ultrasound (EBUS) has been used by pulmonologists and thoracic surgeons primarily for the staging, diagnosis and management of lung cancer. Its efficacy and safety has been demonstrated in multiple studies.
EBUS is not currently utilized by most centers in the staging of esophageal cancer. To date, no study has explored the possible use of EBUS for peritumoral lymph node biopsy, nor for biopsy of any suspicious mediastinal lymph nodes, not accessible by EUS. At Notre Dame Hospital, Centre Hospitalier de L'Universite de Montreal, all patients diagnosed with esophageal cancer undergo complete EUS staging followed by EBUS during the same procedure, in order to examine all the lymph nodes near or far from the primary tumor amenable to EBUS guided trans-bronchial biopsy. This is important because it allows physicians to bypass the primary tumor and pass through the normal (non-cancerous) bronchial wall, eliminating any chances of tumoral contamination of the sample. In addition, this also provides a much more complete mediastinal staging as it allows biopsy of a population of lymph nodes non-accessible to EUS biopsy. Thus far, we have performed EBUS in six patients with esophageal cancer with upstaging of the N stage of the tumor in two of these patients (33%). There have been no morbidities and all patients have been discharged home on the day of the procedure. EBUS was therefore able to change the treatment strategy, without adding any morbidity, discomfort or additional procedural time for two out of six patients.
The proposed project will be the first study ever to evaluate the impact of EBUS on esophageal cancer staging as well as on the choice of therapy. This study consists of a prospective cohort study with no placebo group, all patients will have EBUS and stages obtained with and without EBUS will be compared as well as changes to the treatment plan based on EBUS staging.
Objectives:
- Examine the impact of adding EBUS to the gold standard work-up on esophageal cancer staging.
- Examine the impact of adding EBUS to the gold standard work-up on the treatment plan for patients newly diagnosed with esophageal cancer.
Methodology:
The study consists of a prospective cohort study. Each patient will serve as his/her own control. All patients currently undergoing esophageal cancer staging in the Division of Thoracic Surgery at the CHUM will be approached for enrolment into the study.
EUS followed by EBUS will be performed during the EUS staging procedure. The order of procedures for all patients is as follows: (1) Flexible Esophagoscopy with endoluminal biopsy, (2) Radial EUS for T staging (3) Linear EUS for lymph node biopsy and N staging, (4) Flexible Bronchoscopy for evaluation of the left mainstem bronchus for tumor invasion, (5) Linear EBUS for trans-tracheal and trans-bronchial lymph node biopsy.
All FNA samples will be evaluated using standard methods by cytopathologists at the CHUM. Results will be evaluated for: (A) positivity, (B) negativity (no tumor cells, positive lymphocytes), (C) inadequacy (no tumor cells, no lymphocytes). A minimum of two passes will be performed into each lymph node.
Patients will be discharged on the same day, as their procedure. Results will be discussed with them in a follow-up clinic appointment with their thoracic surgeon within 3 weeks of the procedure. Any procedure-related morbidity will be documented in the post-procedural period as well as at their follow-up appointment.
- Expected Results:
We believe that by adding EBUS to the gold standard work up and staging of esophageal cancer, we can make a significant difference in esophageal cancer staging. This may also significantly change the choice of therapy.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Quebec
-
Montréal, Quebec, Canada, H2L 4M1
- Centre Hospitalier de l'Universite de Montreal
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Biopsy proven esophageal cancer
- Endoluminal esophageal mass without previous biopsy
- Medical suitability for endoscopic procedure
- Ability to consent
Exclusion Criteria:
- Patient on Coumadin (Warfarin) or Plavix (Clopidogrel) with inability to stop medication for 5 days prior to procedure
- Anatomy precluding EBUS
- Endobronchial tumor
- Pregnancy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: DIAGNOSTIC
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The primary outcome measure will be the accuracy of the combination of EUS and EBUS to correctly diagnose the presence or absence of mediastinal lymph node metastases compared to EUS alone.
Time Frame: 6 months intervals
|
6 months intervals
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The safety of all diagnostic techniques will be evaluated and compared between techniques.
Time Frame: 6 months
|
6 months
|
Procedure-related morbidity
Time Frame: 6 months
|
6 months
|
Change in treatment plan based on EBUS
Time Frame: Study termination
|
Study termination
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CE 09.146
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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