An interventional study of ColoSeal ICD Device in Colorectal Cancer, sponsored by Averto Medical, Inc.. Recruiting at 3 sites in 3 countries. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-10-13.
Sponsored by Averto Medical, Inc. · Not applicable, Interventional, and Treatment
The studies aim to evaluate the safety and feasibility of the ColoSeal Intraluminal Colonic Diversion (ICD) System in two prospective, multicenter, single-arm studies. The ColoSeal ICD System is intended to be used to protect a damaged segment of colon such as a surgical anastomosis, anastomosis leak, or perforation from contact with fecal flow for up to 14 days. The device will be evaluated in adult patients with rectal and rectosigmoid cancer undergoing a resection with a colorectal anastomosis.
The studies aim to evaluate the safety and feasibility of the ColoSeal Intraluminal Colonic Diversion (ICD) System in two prospective, multicenter, single-arm studies conducted under identical protocols. The ColoSeal ICD System is intended to be used to protect a damaged segment of colon such as a surgical anastomosis, anastomosis leak, or perforation from contact with fecal flow for up to 14 days. The device will be evaluated in adult patients with rectal and rectosigmoid cancer undergoing a resection with a colorectal anastomosis. Subjects will undergo scheduled resection per the surgeon's preferred technique. Following completion of the colon anastomosis, a leak check will be performed prior to insertion of the ColoSeal ICD Device to confirm no leak is present. The ICD Device will be inserted, advanced and positioned with the ICD Delivery System transanally. The anchor portion is positioned > 5 cm above and ideally 10-20 cm above (more proximal in GI tract) the area requiring protection from fecal flow (the anastomosis). The anchor portion of the device is designed to be placed in healthy bowel and not at the region of damaged bowel where protection is required. After positioning, deployment, and anchoring of the ICD Device the Delivery System is removed. The external portion of the device is further anchored to the subject's skin using sutures and an optional extension tubing may be attached. A collection bag is attached to the end of the device to collect output. The ICD Device will remain in place for 10+/-3 days post-operatively. An anastomosis leak test will be performed prior to device removal. Once no leak is confirmed, the ICD Device is removed from the subject.
6,541 studies on the registry are indexed under Colorectal Neoplasms; 1,667 are open to participants now.
This study's planned enrollment of 90 is above the median of 76 across 4,800 interventional studies indexed under Colorectal Neoplasms.
Browse Colorectal Neoplasms studies →Averto Medical, Inc. is the lead sponsor of 2 studies on the registry; 1 is open to participants now.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Subjects will undergo transanal placement of the ICD Device.
Device: ColoSeal ICD Device
The subject will undergo scheduled resection per the surgeon's preferred technique. Following completion of the anastomosis, the Intraluminal Colonic Diversion (ICD) Device will be inserted, advanced and positioned with the ICD Delivery System transanally. The ICD Device will remain in place for 10±3 days. Anastomotic leak testing will be performed prior to scheduled removal.
Number of participants with device related adverse events
Any device related adverse events during procedure and/or follow-up
Time frame: 90 days post procedure
Procedure success
Rate of acute efficacy in placing and deploying the device at the desired location
Time frame: Day 0
Procedure time
Time from insertion of the introducer to the vacuum system being ready to be connected and begin vacuum application
Time frame: Day 0
Migration rate
Number of devices migrated over the anastomosis divided by the number of devices placed
Time frame: Up to 14 days
Occurrence of anastomotic leakage
Anastomotic leak rate will be defined as any anastomotic leak during study follow-up period identified on radiographic analysis. Clinically symptomatic and non-symptomatic leaks (radiographically diagnosed only) will be analyzed separately and taken into account during comparative analysis to rates reported in literature. Anastomotic leak rate will be subdivided into those leaks occurring while device is in place in subject or late leaks after device removal.
Time frame: Up to 90 days post procedure
Need for ostomy surgery
Efficacy will be determined by ostomy avoidance rate. Need for ostomy percentage will be defined as the total number of subjects that required ostomy during study follow-up period over total number of subjects enrolled who would have a planned ostomy if not a study participant.
Time frame: Up to 90 days post procedure
Successful device removal
Percent of successful device removals without adverse effect
Time frame: Up to 14 days
Not enrolling at this site.
Plan to share: No
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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Averto Medical, Inc.