Low or High Ligation of the IMA With Apical Lymph Node Dissection in Rectal Cancer Laparoscopic Surgery
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ClinicalTrials.gov Identifier: NCT03013153 |
Recruitment Status : Unknown
Verified December 2016 by Sixth Affiliated Hospital, Sun Yat-sen University.
Recruitment status was: Recruiting
First Posted : January 6, 2017
Last Update Posted : January 12, 2017
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Tracking Information | ||||
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First Submitted Date ICMJE | December 31, 2016 | |||
First Posted Date ICMJE | January 6, 2017 | |||
Last Update Posted Date | January 12, 2017 | |||
Study Start Date ICMJE | December 2016 | |||
Estimated Primary Completion Date | December 2018 (Final data collection date for primary outcome measure) | |||
Current Primary Outcome Measures ICMJE |
5-years overall survival rate [ Time Frame: 5 years ] 5-years overall survival rate
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Original Primary Outcome Measures ICMJE | Same as current | |||
Change History | ||||
Current Secondary Outcome Measures ICMJE |
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Original Secondary Outcome Measures ICMJE | Same as current | |||
Current Other Pre-specified Outcome Measures | Not Provided | |||
Original Other Pre-specified Outcome Measures | Not Provided | |||
Descriptive Information | ||||
Brief Title ICMJE | Low or High Ligation of the IMA With Apical Lymph Node Dissection in Rectal Cancer Laparoscopic Surgery | |||
Official Title ICMJE | Low or High Ligation of the Inferior Mesenteric Artery With Apical Lymph Node Dissection in Rectal Cancer Laparoscopic Surgery: A Prospective, Multi-Center, Randomized, Open-Label, Parallel Group, Non-Inferiority Clinical Trial (LAND) | |||
Brief Summary | Laparoscopy colon surgery is accepted worldwide in the recent years. But there is still argument on the effect of laparoscopy rectal surgery. Laparoscopy has advantages on showing the inferior mesenteric artery (IMA), protection of autonomic nerve, low rectal anastomosis, and total mesorectum excision. However, debate on the level of IMA ligation and debonding of splenic flexure never ends. This study is going to give a clear and definite answer to how and why surgeons should deal with the IMA in laparoscopy rectal surgery,base on the 3D reconstruction of IMA and identification of IMA perfusion types. | |||
Detailed Description | According to the report of World Health Organization 2015, the morbility and mortality of colorectal cancer (CRC) are rising all over the world. Although the technique gets great approval in CRC surgical treatment in the recent years, such as TME protocol, neoadjuvant and laparoscopy technique, the complication of anastomosis leakage and nerve damage are still to be solved. Laparoscopy colon surgery is accepted worldwide in the recent years. But there is still argument on the effect of laparoscopy rectal surgery. Laparoscopy has advantages on showing the inferior mesenteric artery, protection of autonomic nerve, low rectal anastomosis, and total mesorectum excision. However, debate on where is the best level of IMA ligation and whether splenic flexure be debonded never ends. This study is going to give a clear and definite answer to how and why surgeons should deal with the IMA in laparoscopy rectal surgery. The ligation level of IMA affects on hypogastric and pelvic nerve, leads to disorder of sexual and urination functions. What's more, it also have affection on the apical lymph node (No.253) harvesting and the blood supplement of proximal colon. Former studies have proved that the blood supplement and tension of anastomosis leads to leakage after surgery. Meanwhile, the ligation level of IMA is the key point on it. The former study comes from the sixth affiliated hospital found that the mistake of ligation level of IMA happened because of the poor touching and explosion with laparoscopy. The distance from the root of IMA to left colic artery (DRL) vary between 19mm and 64mm. When surgeon made mistake during ligation, it led to the insufficient resection of apical lymph node. Further more, affect the long-term survival. Besides, there are 4 different types of IMA according to the relationship between the left colic artery, sigmoid artery and superior rectal artery. These branches will confuse surgeon on how to deal with them. 3D reconstruction of abdominal pelvic CT is able to show the length of DRL, IMA types and apical lymph nodes clearly. With these technique, the investigators can preserve the left colic artery and resect apical lymph nodes precisely. In the past studies, high or low ligation takes advantage on both side. But none of them comes from retrospective clinical trail. Some author believe that high ligation do better in resection of apical lymph nodes, release the tension of anastomosis, providing precise tumor staging. On the other side, some authors consider that high ligation may cut down blood supplement, rise the incident of anastomosis leakage (AL). so they prefer low ligation to the high. Some studies show that there are no long term survival difference between high and low ligation on IMA in laparoscopy rectal resection. So whether high ligation is necessary, still to be proved. For local advanced rectal cancer, neoadjuvant chemotherapy can lesson tumor size, reduce recurrence, preserve annual better and rise long-term survival. National Comprehensive Cancer Network command chemotherapy before surgery (Total Mesorectal Excision TME) as the standard for rectal cancer since 2005. Another randomized controlled trial (RCT) named Neoadjuvant FOLFOX6 Chemotherapy With or Without Radiation in Rectal Cancer (FOWARC) NCT01211210 has proved the recent positive result. In those cases, the positive metastasis apical lymph node appeared in less than 5% (5/116) cases. On the other side, the incident of AL was up to 7% (8/116) . This phenomenon discover that maybe low ligation with apical lymph nodes dissection can get the same treatment effect and decrease AL from happening. |
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Study Type ICMJE | Interventional | |||
Study Phase ICMJE | Not Applicable | |||
Study Design ICMJE | Allocation: Randomized Intervention Model: Parallel Assignment Masking: None (Open Label) Primary Purpose: Treatment |
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Condition ICMJE | Rectal Cancer | |||
Intervention ICMJE |
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Study Arms ICMJE |
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Publications * |
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | ||||
Recruitment Status ICMJE | Unknown status | |||
Estimated Enrollment ICMJE |
748 | |||
Original Estimated Enrollment ICMJE | Same as current | |||
Estimated Study Completion Date ICMJE | December 2023 | |||
Estimated Primary Completion Date | December 2018 (Final data collection date for primary outcome measure) | |||
Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | 18 Years to 75 Years (Adult, Older Adult) | |||
Accepts Healthy Volunteers ICMJE | No | |||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | |||
Listed Location Countries ICMJE | China | |||
Removed Location Countries | ||||
Administrative Information | ||||
NCT Number ICMJE | NCT03013153 | |||
Other Study ID Numbers ICMJE | LAND | |||
Has Data Monitoring Committee | Yes | |||
U.S. FDA-regulated Product | Not Provided | |||
IPD Sharing Statement ICMJE |
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Current Responsible Party | Sixth Affiliated Hospital, Sun Yat-sen University | |||
Original Responsible Party | Same as current | |||
Current Study Sponsor ICMJE | Sixth Affiliated Hospital, Sun Yat-sen University | |||
Original Study Sponsor ICMJE | Same as current | |||
Collaborators ICMJE | Not Provided | |||
Investigators ICMJE |
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PRS Account | Sixth Affiliated Hospital, Sun Yat-sen University | |||
Verification Date | December 2016 | |||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |