Anastomotic Leakage After Colon Cancer Surgery
ANACO II
Prospective Observational Multicenter Study of Anastomotic Leakage After Colon Cancer Surgery (ANACO II).
1 other identifier
observational
1,628
1 country
1
Brief Summary
Anastomotic leak (AL) is one of the most feared complications after colon cancer (CC) surgery. The incidence varies according to the studies, the definition used and the location of the excised segment. In some of the series described, AL incidence have hardly changed, despite the evolution of the technique and technological improvements. The leak rate obtained in the only Spanish prospective multicenter observational study at national level was 9% (ANACO study). The aim of the present study is to determine the current rate of AL in our country, 10 years after the ANACO study, to determine if there has been any evolution and to analyze the factors associated with it. For this purpose, AL is defined with the same criteria as in the first study, as leakage of luminal contents through the junction between two hollow visceras, diagnosed radiologically (radiography with soluble enema or CT with collection adjacent to the anastomosis), clinically (extravasation of luminal contents or gas through the wound or drainage), endoscopically or intraoperatively. To compare AL rates throughout this decade, a 60-day follow-up will be performed, the same as in the ANACO study. As a modification respect to the ANACO study protocol, the aim is to analyze the possible influence of AL and perioperative intra-abdominal infection on short-term oncologic prognosis, with a one-year follow-up. This question has hardly been studied in prospective multicenter studies to date. The variables to be collected are divided into demographic (information about the hospital center, patient comorbidities), diagnostic variables (analytical values, diagnostic reason, neoadjuvant, localization, TNM), surgical variables (type of surgery, preparation, intention, intraoperative findings and complications, type of resection and anastomosis), admission (AL, other complications), histology, 60-day follow-up (AL, readmissions), one-year follow-up (readmissions, local recurrence, peritoneal and distant recurrence). Patients included in the study must be \>18 years old undergoing oncologic surgery for CC located 15 cm above the anal margin, with preoperative histological confirmation or with endoscopic suspicion of infiltrating lesion or with radiological suspicion in the context of urgent surgery. Intestinal continuity (anastomosis) should be reconstructed and a derivative stoma should not be associated in the same surgery. According to ANACO data and follow-up times according to the primary objective (AL) at 60 days and the secondary objective (oncologic prognosis) with annual follow-up, inclusion will be carried out until the 1628 individuals required according to the sample size calculation performed are included.
Trial Health
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participants targeted
Target at P75+ for all trials
Started Dec 2022
1 active site
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Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 22, 2022
CompletedFirst Posted
Study publicly available on registry
December 8, 2022
CompletedStudy Start
First participant enrolled
December 15, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2024
CompletedSeptember 22, 2023
September 1, 2023
12 months
November 22, 2022
September 20, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Anastomotic leak
60 days
Secondary Outcomes (2)
Overall postoperative complications
60 days
Local recurrence
1 year
Other Outcomes (2)
Minimally invasive surgery use
1 day
Intraoperative complications
7 days
Study Arms (1)
Colon cancer patients with intestinal anastomosis
There is a single cohort of patients, the one operated on for colon cancer with intestinal continuity construction through an anastomosis without derivative stoma construction of any kind.
Interventions
This is a registry of surgical patients with colon cancer that are managed following current clinical practice in each participating center. The aim of this research is studying anastomotic leak rates and posible risk factors.
Eligibility Criteria
Oncologic surgery for colon cancer located 15 cm above the anal margin, with preoperative histological confirmation or with endoscopic suspicion of infiltrating lesion or with radiological suspicion in the context of urgent surgery
You may qualify if:
- \>18 years old undergoing oncologic surgery for CC located 15 cm above the anal margin, with preoperative histological confirmation or with endoscopic suspicion of infiltrating lesion or with radiological suspicion in the context of urgent surgery. Intestinal continuity (anastomosis) should be reconstructed in the same surgery.
You may not qualify if:
- Derivative stoma in the same surgery
- Palliative surgery
- Definitive stoma creation without anastomosis
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Hospital San Carlos, Madridlead
- Spanish Association of Surgeons (AEC)collaborator
- Hospital Universitario La Fecollaborator
- Complejo Hospitalario Universitario de Vigocollaborator
Study Sites (1)
Carlos Cerdán Santacruz
Madrid, 28029, Spain
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Carlos Cerdán, MD PhD
Fundación de Investigación Biomédica - Hospital Universitario de La Princesa
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 12 Months
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Consultant. Colorectal Surgery Department. Principal Investigator
Study Record Dates
First Submitted
November 22, 2022
First Posted
December 8, 2022
Study Start
December 15, 2022
Primary Completion
December 1, 2023
Study Completion
December 1, 2024
Last Updated
September 22, 2023
Record last verified: 2023-09
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- From three months after recruitment after 3 months of follow-up ending.
- Access Criteria
- Under demand.
It is the intention of the authors to share data collected through an official data repository such as Mendeley, for example.