Hysteroscopic Lymphatic Mapping for Endometrial Cancer
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||Hysteroscopic Injection of Tracers for Sentinel Node Identification in Women With Endometrial Cancer|
- Sentinel Node Identification Rate [ Time Frame: 15-20 minute procedure prior to/during routine surgery for identifying the sentinel nodes ]Feasibility of sentinel node identification rate using intraoperative hysteroscopic injection of patent blue dye and radiocolloid for the detection of sentinel lymph nodes in patients with endometrial cancer. Sentinel node identification before and during surgery using a gamma counter to identify lymph nodes that have absorbed Tc-99m sulfur colloid. Study feasibility assessed with enrollment of 20 participants, approximately 1 year.
|Study Start Date:||April 2008|
|Study Completion Date:||June 2010|
|Primary Completion Date:||June 2010 (Final data collection date for primary outcome measure)|
Experimental: Intraoperative Lymphatic Mapping
Intraoperative sentinel lymph node identification (lymphatic mapping)
Procedure: Intraoperative Lymphatic Mapping
Intraoperative hysteroscopic injection of patent blue dye and radiocolloid for detection of sentinel lymph nodes.
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Lymph nodes are oval-shaped glands where immune reactions occur. For patients with endometrial cancer, lymph node status is an important factor for planning the cancer treatment course and predicting the status of the cancer. The "sentinel" node is the lymph node closest to the main tumor area, and it is believed to be at greatest risk for spread of the cancer. If the sentinel node does not contain cancer cells, then the remaining lymph nodes are usually cancer-free.
In this study, researchers want to study possibly using lymphatic mapping in future patients as an alternative to completely removing the lymph nodes in the pelvis (hip area) and para-aortic (upper abdomen) area.
Intraoperative sentinel lymph node identification (lymphatic mapping) uses 2 techniques. The first technique involves injecting a small amount of weak radioactive material, and the second involves injecting a drug called isosulfan blue or methylene blue. These techniques are being studied to see if the surgeon can locate ("map") lymph nodes that may contain tumor cells.
Routine Surgical Treatment:
As part of routine care, all participants in this study will have surgery to remove the uterus, cervix, 1-2 inches of the vagina, fallopian tubes, ovaries, and the lymph nodes in 2 areas of the waist.
If you agree to take part in this study, after you have been given the anesthetic for your surgery, your uterus will be examined to locate the tumor(s). After the tumor(s) are located, they will be injected with a radioactive substance called Tc-99m sulfur colloid. The tumors will then be injected with a dye called isosulfan blue or methylene blue, which is used to turn the sentinel node blue.
Before and during your surgery, a gamma counter (a special hand-held instrument that measures radioactivity) will be used to identify lymph nodes that have absorbed the Tc-99m sulfur colloid. The surgeon will also be able to see the lymph nodes that have absorbed the blue dye.
In addition to the study procedures, researchers will collect clinical information about you that will be compared with the study results. This information includes your date of birth, age, race, height, weight, number of any past pregnancies and deliveries, any other medical conditions, and any earlier surgeries. It also includes the date of the cancer diagnosis, the status of the cancer diagnosis before surgery, the status of the disease, and the results of routine scans before surgery (chest x-ray and computed tomography [CT] or magnetic resonance imaging [MRI] scan, if performed).
Length of Study Participation:
Your participation in this study will be over after the 15-20 minute procedure for identifying the sentinel nodes. The routine surgery will occur after that, which can take up to 5 hours.
This is an investigational study. Tc-99m sulfur colloid, the blue dye (either isosulfan blue or methylene blue), and the gamma counter are FDA approved for the procedures used in this study.
Performing lymph node mapping and sentinel node identification during surgery in patients with endometrial cancer is considered experimental.
Up to 20 women will take part in this multicenter study. Up to 10 will be enrolled at M. D. Anderson.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00671606
|United States, Texas|
|St. Luke's Episcopal Hospital|
|Houston, Texas, United States, 77030|
|UT MD Anderson Cancer Center|
|Houston, Texas, United States, 77030|
|Principal Investigator:||Michael M. Frumovitz, MD||M.D. Anderson Cancer Center|