Clinical trial · Interventional
Natural Orifice Specimen Extraction Surgery for Colorectal Cancer
Natural Orifice Specimen Extraction Surgery for Colorectal Cancer (NOSE for CRC)
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The goal of this type of study: a prospective, randomized controlled clinical trial is to assess the safety and feasibility of NOSE surgery to compare the NOSE and conventional laparoscopy groups in Colorectal cancer patients. The main questions it aims to answer are measuring the postoperative inflammatory response and monitoring the early morbidity and mortality rate after surgery. Participants will be assigned patients to undergo either NOSE surgery or conventional laparoscopic mini-laparotomy resection. If there is a comparison group: Researchers will compare the control group to see if postoperative inflammatory response.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Colorectal Cancer | Malignant Colorectal Neoplasm | CURATED_BROADER | 0.80 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Natural Orifice Specimen Extraction | Procedure | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- NO_INTERVENTION
- label
- Conventional laparoscopy group
- description
- The investigators can select either the intracorporeal or extracorporeal method to create bowel anastomoses. For the extracorporeal way, a mini-laparotomy wound is created and exteriorizes the bowel to do the anastomosis. The specimen is removed via the mini-laparotomy wound after the anastomosis is accomplished for the intracorporeal approach.
- type
- EXPERIMENTAL
- label
- NOSE group
- description
- After bowel resection, all bowel anastomoses are created via side-to-side intracorporeal anastomosis, either isoperistaltic or antiperistaltic. The surgical steps of NOSE with the transrectal method are illustrated in Figure 1. First, the rectosigmoid colonic lumen is blocked with a bowel clamp. After rectal irrigation with povidone-iodine water, a transanal endoscopic microsurgery (TEM) scope or Alexis wound protector is inserted through the anus, reaching the upper rectum. Enterotomy is performed at the upper rectum, and a suction device is used to clean any fecal spillage. The TEM scope is pushed forward beyond the rectal opening, and the specimen is extracted with the TEM scope. The rectal opening is closed with a barbed suture, and an air leak test is performed to identify anastomotic leakage.
- interventionNames
- Procedure: Natural Orifice Specimen Extraction
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: Patient Enrollment Histological or cytological confirmation of colorectal adenocarcinoma. Inclusion criteria 1. Age ≥ 18 2. Performance status of 0 - 2 on the ECOG (Eastern Cooperative Oncology Group) scale 3. American Society of Anesthesiology (ASA) score is Ⅰ-Ⅲ 4. Tumor location: CRC with the lower margin of the tumor greater than 10 cm from the anal verge 5. Pre-operative T staging: T0-T4a at preoperative evaluation according to the American Joint Committee on Cancer (AJCC) Cancer Staging Manual 8th Edition 6. Preoperative M staging: M0 according to AJCC 8th 7. Tumor size: 4 cm or less 8. Written informed consent for participation Exclusion Criteria: 1. Not suitable for minimally invasive surgery 2. Body mass index (BMI) \>30 kg/m2 3. Malnutrition: albumin level less than 3.5 4. Previous pelvic surgery 5. Emergency surgery
References
Publications (22)
- BACKGROUNDChiu HM, Jen GH, Wang YW, Fann JC, Hsu CY, Jeng YC, Yen AM, Chiu SY, Chen SL, Hsu WF, Lee YC, Wu MS, Wu CY, Jou YY, Chen TH. Long-term effectiveness of faecal immunochemical test screening for proximal and distal colorectal cancers. Gut. 2021 Dec;70(12):2321-2329. doi: 10.1136/gutjnl-2020-322545. Epub 2021 Jan 25. PMID 33495268
- BACKGROUNDClinical Outcomes of Surgical Therapy Study Group; Nelson H, Sargent DJ, Wieand HS, Fleshman J, Anvari M, Stryker SJ, Beart RW Jr, Hellinger M, Flanagan R Jr, Peters W, Ota D. A comparison of laparoscopically assisted and open colectomy for colon cancer. N Engl J Med. 2004 May 13;350(20):2050-9. doi: 10.1056/NEJMoa032651. PMID 15141043
- BACKGROUNDGreen BL, Marshall HC, Collinson F, Quirke P, Guillou P, Jayne DG, Brown JM. Long-term follow-up of the Medical Research Council CLASICC trial of conventional versus laparoscopically assisted resection in colorectal cancer. Br J Surg. 2013 Jan;100(1):75-82. doi: 10.1002/bjs.8945. Epub 2012 Nov 6. PMID 23132548
- BACKGROUNDColon Cancer Laparoscopic or Open Resection Study Group; Buunen M, Veldkamp R, Hop WC, Kuhry E, Jeekel J, Haglind E, Pahlman L, Cuesta MA, Msika S, Morino M, Lacy A, Bonjer HJ. Survival after laparoscopic surgery versus open surgery for colon cancer: long-term outcome of a randomised clinical trial. Lancet Oncol. 2009 Jan;10(1):44-52. doi: 10.1016/S1470-2045(08)70310-3. Epub 2008 Dec 13. PMID 19071061
- BACKGROUNDKehlet H, Wilmore DW. Evidence-based surgical care and the evolution of fast-track surgery. Ann Surg. 2008 Aug;248(2):189-98. doi: 10.1097/SLA.0b013e31817f2c1a. PMID 18650627
- BACKGROUNDLjungqvist O, Scott M, Fearon KC. Enhanced Recovery After Surgery: A Review. JAMA Surg. 2017 Mar 1;152(3):292-298. doi: 10.1001/jamasurg.2016.4952. PMID 28097305
- BACKGROUNDScott MJ, Baldini G, Fearon KC, Feldheiser A, Feldman LS, Gan TJ, Ljungqvist O, Lobo DN, Rockall TA, Schricker T, Carli F. Enhanced Recovery After Surgery (ERAS) for gastrointestinal surgery, part 1: pathophysiological considerations. Acta Anaesthesiol Scand. 2015 Nov;59(10):1212-31. doi: 10.1111/aas.12601. Epub 2015 Sep 8.