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NCT Number: NCT06915818

Flexagon Plus OTOLoc Colon Anastomosis in Patients Undergoing Surgery

The primary objective of this trial is to investigate the safety and effectiveness of the Flexagon SFM system plus OTOLoc when used to create a Ileo-colic and Colo-colonic anastomoses in participants undergoing colon surgery.

Recruiting

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Key information

Conditions

Age range

22 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Clinica Colonial Hospital, Santiago, Huechuraba, Región Metropolitana, Chile

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About this study

This is a prospective, multi-center, single-arm clinical study to evaluate the GI Windows Flexagon Self Forming Magnet Anastomosis plus OTOLoc for creating Ileo-colic and Colo-colonic anastomoses in participants undergoing colon surgery.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged 22 years or older at screening
  • Candidate for surgery requiring Right Hemicolectomy or Sigmoid / Low Anterior resection (with anastomosis above the peritoneal reflection) with cardiac/medical clearance for surgery
  • Able to understand and sign informed consent document
  • American Society of Anesthesiologists (ASA) score < IV at time of procedure
  • All cancer patients must have completed chemotherapy ≥2 months prior to procedure
  • Lives, and intends to remain, within a 300 kilometers radius of study center for the duration of the study
  • Able to refrain from smoking during study follow-up period

Exclusion criteria

  • Known or suspected allergy to silicone, nickel, titanium or Nitinol
  • BMI > 55 kg/m2
  • Uncontrolled diabetes (defined as HbA1c >10%)
  • Congenital or acquired anomalies of the GI tract, including atresia or malrotation that would inhibit passing of SFM magnet
  • Diagnosed with obstructed or perforated colon cancer
  • Any documented conditions for which endoscopy and/or laparoscopy would be contraindicated or history of previous technically difficult or failed endoscopy that may suggest difficulty during endoscopic delivery of magnets
  • Any previous major surgery on the stomach, duodenum, hepatobiliary tree, pancreas, Whipple or right colon
  • History of recurrent small bowel obstructions.
  • Coagulation deficiency not normalized by medical treatment or platelet count <50,000/µL
  • Known moderate to severe renal disease (eGFR < 44 milliliters per minute per 1.73m2) or ongoing dialysis
  • Hyperkalemia / hypercoagulability or prior Venus Thromboembolism / Pulmonary Embolism
  • Immunocompromised (e.g., active treatment for malignancies, hematologic malignancy, on immunosuppressive therapy, moderate or severe primary immunodeficiency, advanced or untreated HIV, active treatment with high-dose corticosteroids (i.e., 20 or more mg of prednisone or equivalent per day when administered for 2 or more weeks prior to surgery) or other immunosuppressive or immunomodulatory agents
  • Congestive heart failure with ejection fraction <35% or clinically significant arrhythmia (any rhythm disturbances except sinus tachycardia, sinus bradycardia or a sinus rhythm with premature atrial or ventricular complexes)
  • Decompensated chronic obstructive lung disease
  • Active or suspected infection at the surgical site or a CDC Class 3/contaminated or Class 4/dirty-infected surgical wound.
  • Contraindication to general anesthesia
  • Breast-feeding, pregnant, or planning on becoming pregnant during the follow-up period
  • Currently participating or has participated in another clinical trial within the past 30 days and is receiving/has received an investigational drug, device, or biologic agent
  • Contraindication to general anesthesia
  • Participant is not appropriate for inclusion in the clinical trial, per the medical opinion of the Principal Investigator

Treatment and study plan

Ileo-colic and colo-colonic Anastomosis with Flexagon SFM and OTOLoc

Device

This study will investigate two types of intervention: ileo-colic and colo-colonic anastomosis creation in subjects undergoing colon surgery. Flexagon SFMs and OTOLoc devices will be delivered laparoscopically and/or endoscopically into a portion of either the ileum or the colon that are intended to be anastomosed. An OTOLoc device will be deployed into the ileum/colon wall to provide access for the deployment of a Flexagon SFM into the bowel. The process is repeated at an intended section of colon. Once deployed, the Flexagon SFMs are approximated and positioned, after which the SFMs are couple together to form the anastomosis, with the OTOLoc devices allowing fluidic communication between the two lumens until the anastomosis is fully formed.

Primary outcomes

  1. Number of Participants with Successful Anastomosis Creation without the Need for Reoperation

    Time frame: 30 Days

    The study's primary endpoint (patient success) is defined as successful anastomosis created with the Flexagon SFM without placement procedure, device or target anastomosis-related reoperation through 30 days.

Study contacts

Contact information is provided by the study sponsor or research team.

Peter Lukin

CONTACT

[email protected]

+1 7814717901

Sponsors and collaborators

Lead sponsor

GI Windows, Inc.

Industry

Registry information

Official study title

GI Windows Flexagon Self Forming Magnet Anastomosis Plus OTOLoc for Creating Ileo-colic and Colo-colonic Anastomoses in Patients Undergoing Surgical Procedures

Acronym: FOCUS

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Apr 8, 2025
Registry last updated
Jul 6, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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