Seal-G MIST (Minimally Invasive Sealant/Spray Technology) System Safety Study [SEALAR Study] (SEALAR)

Seal-G MIST System Safety Study [SEALAR Study]

The purpose of this study is to evaluate safety of Seal-G MIST System in reinforcing colorectal anastomosis, in subjects undergoing colorectal surgery.

Study Overview

• Status: Withdrawn
• Conditions: Colorectal Cancer; Diverticulitis Colon
• Intervention / Treatment: Device: Seal-G MIST System

Detailed Description

Study procedures:

Pre-surgery:

• Screening will be performed among adult subjects who are scheduled for an elective colorectal surgery. Once potential eligibility to the study is determined based on the study's inclusion/exclusion criteria, study procedures will be explained to the candidate and participation will be offered.
• Informed consent process.
• Pre-surgery assessments will be according to the routine practice at the site and determined by the treating physician.

Intra-operative:

• During the surgery, after confirmation of the intra-operative exclusion criteria, completion of anastomosis creation and only after leak test was performed , subjects will be allocated to one of the two treatment arms with a 1:1 ratio based on a randomization scheme (either to the Standard of care (SOC) or to Seal-G MIST arms).
• Device (Seal-G MIST System) application (to Seal-G MIST treatment arm only).

Post-operative follow-up:

• Subjects will be followed during post-operative period until discharge from the hospital for clinical and subclinical leaks according to the SOC.
• In an event of suspected anastomotic leak, patient will be treated according to severity of leak and PI clinical judgement (conservative treatment, drainage, diversion, anastomosis take down).

• Subjects will be followed up for leaks and related AE/SAEs at the day of the surgery and for a period of 15 weeks (±2 weeks) post-surgery, including the following activities:

  • Daily while hospitalized (in accordance with the site routine procedures)
  • At 1 month (±1 week) and 15 weeks (±2 weeks) post-surgery (Hospitalization for elective procedure (i.e. chemotherapy treatments) will not be considered as SAEs)

• Study Type: Interventional
• Phase: Not Applicable

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Subject >18 years
2. Subject is scheduled for elective open or laparoscopic colorectal resection (including left colectomy, sigmoidectomy, anterior resection, subtotal colectomy) surgery (including robotic) involving the creation of circular stapler anastomosis
3. Subject signs and dates a written Informed Consent Form, indicates an understanding of the study procedures and follow-up requirements and is willing to comply with them

Exclusion Criteria:

1. Anastomosis is expected to be ≤ 10cm from anal verge
2. Surgery involves stoma creation
3. Subject who underwent a prior pelvic radiation therapy
4. Subject with a BMI > 40 or <19
5. Subject with American Society of Anesthesiologists (ASA) status higher than 3
6. Albumin level < 3 gr/dl
7. Hemoglobin level < 8 g/dl on day of surgery
8. Subject has a diagnosis of bowel strangulation, peritonitis, bowel perforation, local or systemic infection, ischemic bowel, and carcinomatosis
9. Subject treated with immunosuppressive agents within 28 days prior to study enrollment (including corticosteroids)
10. Serious or uncontrolled co-existent diseases (e.g. severe cardiovascular disease, congestive heart failure, recent myocardial infarction within 6 months from surgery, significant vascular disease, active or uncontrolled autoimmune disease, active or uncontrolled infection, uncontrolled diabetes mellitus with episodes of hospitalization due to hypo or hyperglycemia within 6 months of surgery)
11. Subject known to have distant metastases, such as liver, lung, bone etc. metastases (not including local and regional lymph nodes)
12. Subject with known sensitivity to Indigo carmine dye (E132)
13. Subject who according to the investigator clinical judgement is not suitable for participation in the study
14. Subject with a life expectancy of less than 1 year
15. Subject requires more than one anastomosis during the surgery
16. Subject is scheduled for another surgery during the follow up period of this study
17. Subject participating in any other study involving an investigational (unapproved) drug or device
18. Woman who is known to be pregnant or breast-feeding or woman who is planning pregnancy or breast-feeding in the 5 next months
19. Vulnerable subjects (e.g. mentally handicapped, prisoners, etc.)

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: SINGLE

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: Seal-G MIST System; Seal-G MIST System is a surgical sealant that will be applied adjunctively to standard closure techniques for reinforcement and protection of gastrointestinal anastomoses.	Device: Seal-G MIST System; Seal-G MIST is an adjunct device that will be applied adjunctively to cover standard closure techniques.; Other Names: Seal-G MIST
NO_INTERVENTION: Standard of care; Patients in the control arm will receive the standard of care [SOC] for colorectal resection surgery with primary anastomosis (no additional intervention)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of overall subject pre-specified* procedure related Adverse Events	Pre-specified procedure related Adverse Event: Wound infection; Bowel obstruction and Post-operative ileus; Anastomotic stricture; Anastomotic leak; Collection/Abscess; Urinary retention/Urinary Tract Infection; Renal failure; Hepatic failure; Peritoneal metastasis; Staple-line bleeding; Allergic reaction; Re-intervention (Including but not limited to re-operation; stoma).	up to 15 weeks (±2 weeks) post-surgery

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of clinical anastomotic leaks	Anastomotic leak (AL) is defined as evidence of a defect in the intestinal wall integrity at the anastomotic site leading to local or general peritonitis, abscesses in the proximity of the anastomosis and/or fistula, fecal or purulent discharge from drains.	up to 15 weeks (±2 weeks) post-surgery
Incidence of subclinical/ radiological leaks	As assessed from Adverse event/Serious Adverse Event reporting form	up to 15 weeks (±2 weeks) post-surgery
Incidence of Serious Adverse Events (SAE) complications	According to Serious Adverse Event (SAE) definition from Medical Device Directive (MEDDEV 2.7/3, Rev 3, May 2015)	up to 15 weeks (±2 weeks) post-surgery
Incidence of collection/abscess without demonstrated leak	According to Adverse event reporting form	up to 15 weeks (±2 weeks) post-surgery
Incidence of reoperation	According to Adverse event/Serious Adverse Event reporting form	up to 30 days post-surgery
Incidence of postoperative mortality		up to 15 weeks (±2 weeks)
Hospital length of stay		From date of surgery until the time for "Ready to be discharged" (in days), an average of 10±4 days
Incidence of "deployment failure"	only for treatment arm	during surgery

Collaborators and Investigators

• Sponsor: Sealantis Ltd.
• Investigators: Study Director: Moshe Kamar, MD, Chief Medical Officer

Study record dates

Study Major Dates

• Study Start (ANTICIPATED): April 1, 2018
• Primary Completion (ANTICIPATED): April 1, 2019
• Study Completion (ANTICIPATED): July 1, 2019

Study Registration Dates

• First Submitted: February 19, 2018
• First Submitted That Met QC Criteria: February 27, 2018
• First Posted (ACTUAL): February 28, 2018

Study Record Updates

• Last Update Posted (ACTUAL): July 30, 2020
• Last Update Submitted That Met QC Criteria: July 28, 2020
• Last Verified: July 1, 2020

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Digestive System Diseases; Gastrointestinal Diseases; Gastroenteritis; Colonic Diseases; Intestinal Diseases; Diverticular Diseases; Diverticulosis, Colonic; Diverticulitis; Diverticulitis, Colonic
• Other Study ID Numbers: DLG-072-06

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No