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LINX Reflux Management System in Subjects With GERD Who Have Previously Undergone a Laparoscopic Sleeve Gastrectomy (RELIEF)

Primary Purpose

GERD, Gastroesophageal Reflux Disease

Status

Completed

Phase

Not Applicable

Locations

United States

Study Type

Interventional

Intervention

LINX device

About this trial

This is an interventional treatment trial for GERD focused on measuring gastroesophageal reflux disease, GERD, obesity, LSG, Laparoscopic Sleeve Gastrectomy

Eligibility Criteria

22 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

INCLUSION CRITERIA

Subjects included in the study must meet all the following criteria:

Age >22 years
Laparoscopic sleeve gastrectomy (LSG) for obesity >12 months prior to proposed device implantation date.
Subject is a surgical candidate, i.e. is able to undergo general anesthesia and laparoscopic surgery.
Documented typical symptoms of GERD for longer than 6 months (regurgitation or heartburn which is defined as a burning epigastric or substernal pain which responds to acid neutralization or suppression).
Subject requires daily proton pump inhibitor or other anti-reflux drug therapy.
Total distal ambulatory esophageal pH must meet the following criteria: pH <4 for >4.5% of the time. Note: Subjects shall have discontinued any GERD medications for at least 7 days prior to testing, with the exception of antacids up to the morning of testing.
Subjects with symptomatic improvement on PPI therapy demonstrated by a GERD-HRQL score of <10 on PPI and >15 off PPI, or subjects with a >6 point improvement when comparing their on PPI and off PPI GERD-HRQL scores.
GERD symptoms, in absence of PPI therapy (minimum 7 days).
If the subject is of child bearing potential must have a negative pregnancy test within one week prior to implant and must agree to use effective means of birth control during the course of the study.
Subject is willing and able to cooperate with follow-up examinations
Subject has been informed of the study procedures and the treatment and has signed an informed consent form.

EXCLUSION CRITERIA

Subjects should be excluded from the study based on the following criteria:

The procedure is an emergency procedure.
Suspected or known allergies to titanium, stainless steel, nickel, or ferrous materials.
Presence of ˃3 cm hiatal hernia as determined by endoscopy or barium esophagram.
Subject had any major complications related to the laparoscopic sleeve gastrectomy that may interfere with, or increase the risks of the LINX procedure (such as, but not limited to, leaks from the gastric remnant and infection at the sleeve gastrectomy)
Plans to surgically revise the gastric pouch (either known preoperatively or decided intraoperatively)
Currently being treated with another investigational drug or investigational device.
Suspected or confirmed esophageal or gastric cancer or prior gastric or esophageal surgery or endoscopic intervention for GERD (with the exception of sleeve gastrectomy).
Distal amplitude <35 mmHg or <70% peristaltic sequences (if using Conventional Manometry). -or- If using High Resolution Manometry (exclude for any of the following):
- Distal Contractile Integral (DCI) ≤ 450 mmHg·s·cm or
- ≥ 50% ineffective swallows or
- ≥ 50% fragmented swallows (Fragmented swallows are defined as those with a ≥ 5cm break [large] in peristaltic integrity).
Presence of esophagitis - Grade C or D (LA Classification).
BMI >35.
Symptoms of dysphagia more than once per week within the last 3 months.
Diagnosed with Scleroderma.
Diagnosed with an esophageal motility disorder such as but not limited to achalasia, nutcracker esophagus, or diffuse esophageal spasm or hypertensive LES.
Subject has a history of or known esophageal stricture or gross esophageal anatomic abnormalities (Schatzki's ring, obstructive lesions, etc.)
Subject has esophageal or gastric varices
History of/or known Barrett's esophagus. Note: The diagnosis of Barrett's esophagus requires both endoscopic and histologic evidence of metaplastic columnar epithelium. Endoscopically, there must be columnar epithelium within the esophagus. Histologically, the epithelium must be metaplastic, as defined by the presence of goblet cells.by
Subject cannot understand trial requirements or is unable to comply with follow-up schedule
Pregnant or nursing, or plans to become pregnant during the course of the study.
Any reason which the Investigator believes may cause the subject to be non-compliant with or unable to meet the protocol requirements.
Subject has an electrical implant or metallic, abdominal implants.

Sites / Locations

Northwest Allied Bariatric & Foregut Surgery
Mercy Health Northwest Arkansas
Keck Medical Center of USC
Institute of Esophageal and Reflux Surgery
RWJBH Univ. Hospital Somerset/Advanced Surgical and Bariatrics of NJ, PA
Buffalo General Medical Center
Adirondack Surgical Group
East Carolina University
University Hospitals Cleveland Medical Center
Coastal Carolina Bariatric & Surgical Center
Panhandle Weight Loss Center
Gunderson Health System

Arms of the Study

Arm 1

Arm Type

Other

Arm Label

Single arm study

Arm Description

Previous LSG patient will be treated with the LINX device and serve as their own control

Outcomes

Primary Outcome Measures

Percentage of Participants Reporting Greater Than or Equal to (>=) 50 Percent (%) Reduction in Total Gastroesophageal Reflux Disease (GERD)- Health-Related Quality of Life (HRQL) Score Compared to Baseline (Off GERD Medications) at the 12-month Follow-up

Percentage of participants reporting >=50% reduction in total GERD-HRQL score compared to baseline (off GERD Medications) at the 12-month follow-up were reported. The GERD-HRQL score consisted of 10 questions, where participants were required to answer each question on a scale of 0 to 5 (0: no symptoms; 1: symptoms noticeable but not bothersome; 2: symptoms noticeable and bothersome but not every day; 3: symptoms bothersome every day; 4: symptoms affect daily activity; 5: symptoms are incapacitating, unable to do activities). The total score was derived by simply adding the individual score of each question. The total score ranged from 0 to 50 where a higher score indicated more severe disease. The best possible total GERD-HRQL score was 0 (asymptomatic in all questions) and the worst possible score was 50 (incapacitated in all questions).

Percentage of Participants Reporting Normalization of Total Distal Acid Exposure Time or at Least a 50% Reduction in Total Distal Acid Exposure Time Compared to Baseline at the 12-month Follow-up

Percentage of participants reporting normalization of total distal acid exposure time or at least a 50% reduction in total distal acid at the 12-month follow-up were reported. The testing was performed by a reflux sensing implantable capsule (for example, Bravo) or via a trans-nasal catheter. Success of the LINX device in decreasing abnormal levels of gastric acid in the esophagus was defined as normalization of distal acid exposure time (pH less than [<] 4 for greater than or equal to [>=] 4.5% of monitoring time) or at least 50% reduction in distal acid exposure time compared to baseline.

Percentage of Participants Reporting >=50% Reduction in Average Daily Protocol Pump Inhibitors (PPIs) Dosage Compared to Baseline at the 12-month Follow-up

Percentage of participants reporting >=50% reduction in average daily protocol pump inhibitors (PPIs) dosage compared to baseline at the 12-month follow-up were reported.

Number of Participants Experiencing Serious Device and/or Procedure Related Adverse Events After LINX Placement Out to 12 Months

Number of participants experiencing serious device and/or procedure related adverse events after LINX placement out to 12 months were reported. SAE is any AE that results in: requires subject hospitalization greater than (>) 24 hours; is life-threatening or results in death; requires prolongation of an existing hospitalization; results in persistent or significant disability/incapacity; results in fetal distress, fetal death, or a congenital anomaly or birth defect; requires intervention to prevent permanent impairment or damage of body function or structure; other serious important medical events that do not fit in the other outcomes and may jeopardize the participant and may require medical or surgical intervention to prevent one of the other outcomes.

Secondary Outcome Measures

Full Information

NCT ID

NCT02429830

First Posted

April 13, 2015

Last Updated

August 8, 2022

Sponsor

Torax Medical Incorporated

1. Study Identification

Unique Protocol Identification Number

NCT02429830

Brief Title

LINX Reflux Management System in Subjects With GERD Who Have Previously Undergone a Laparoscopic Sleeve Gastrectomy

Acronym

RELIEF

Official Title

A Prospective, Multicenter Study of REflux Management With the LINX® System for Gastroesophageal REFlux Disease After Laparoscopic Sleeve Gastrectomy

Study Type

Interventional

2. Study Status

Record Verification Date

August 2022

Overall Recruitment Status

Completed

Study Start Date

April 5, 2017 (Actual)

Primary Completion Date

June 8, 2021 (Actual)

Study Completion Date

June 8, 2021 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title

Sponsor

Name of the Sponsor

Torax Medical Incorporated

4. Oversight

Studies a U.S. FDA-regulated Drug Product

Studies a U.S. FDA-regulated Device Product

Yes

Data Monitoring Committee

5. Study Description

Brief Summary

The purpose of this study is to evaluate the LINX device in patients who have previously undergone laparoscopic sleeve gastrectomy (LSG) for obesity and have chronic gastroesophageal reflux disease (GERD). The study will monitor safety and changes in reflux symptoms.

Detailed Description

The objective of this study is to confirm safety and efficacy after laparoscopic sleeve gastrectomy (LSG) in subjects indicated for LINX is similar to the outcomes that formed the basis for the LINX Premarket Approval to support modification of the current labeling. Presently, there is a precautionary statement that safety and effectiveness of the LINX has not been established for prior esophageal or gastric surgery or endoscopic intervention. Patients with GERD that have undergone a LSG procedure have limited surgical treatment options if they are looking for an alternative to continuous acid suppression therapy (i.e. proton pump inhibitors or equivalent). One procedure, fundoplication, is extremely difficult to perform as LSG patients have a limited amount of fundus tissue remaining after sleeve surgery. Roux-en-Y gastric bypass (RYGB) may be chosen as a conversion procedure but is more invasive with the potential for serious complications. LINX may be considered as an alternative and less invasive option that may potentially have few complications compared to RYGB. The study is an observational, multicenter, single-arm study with prospective enrollment. Based on the observational status of the study, no formal statistical hypothesis tests will be conducted. Up to 30 patients meeting the eligibility requirements will be implanted with LINX and followed through 12-months after implant. Up to twelve (12) clinical sites will enroll subjects. Safety evaluations will be ongoing throughout the duration of the study, starting at the implant procedure. Efficacy endpoints will be evaluated at the 12-month visit. Safety will be evaluated based on the rate of serious device and procedure related adverse events (AEs). Safety will also be evaluated by endoscopy to assess the mucosa and x-rays to verify device location at 12 months post implant. Efficacy will be measured at 12 months (compared to baseline) by examining 3 variables: normalization of total distal acid exposure or at least a 50% reduction, at least a 50% reduction in total GERD-HRQL scores and at least a 50% reduction in average daily PPI dosage.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study

GERD, Gastroesophageal Reflux Disease

Keywords

gastroesophageal reflux disease, GERD, obesity, LSG, Laparoscopic Sleeve Gastrectomy

7. Study Design

Primary Purpose

Treatment

Study Phase

Not Applicable

Interventional Study Model

Single Group Assignment

Masking

None (Open Label)

Allocation

N/A

Enrollment

30 (Actual)

8. Arms, Groups, and Interventions

Arm Title

Single arm study

Arm Type

Other

Arm Description

Previous LSG patient will be treated with the LINX device and serve as their own control

Intervention Type

Device

Intervention Name(s)

LINX device

Intervention Description

The LINX device is a permanent implant placed at the area of the lower esophageal sphincter (LES) and is designed to augment a weak LES and minimize or eliminate GERD-related symptoms.

Primary Outcome Measure Information:

Title

Description

Time Frame

Up to 12 Months

Title

Percentage of Participants Reporting Normalization of Total Distal Acid Exposure Time or at Least a 50% Reduction in Total Distal Acid Exposure Time Compared to Baseline at the 12-month Follow-up

Description

Time Frame

Up to 12 months

Title

Percentage of Participants Reporting >=50% Reduction in Average Daily Protocol Pump Inhibitors (PPIs) Dosage Compared to Baseline at the 12-month Follow-up

Description

Percentage of participants reporting >=50% reduction in average daily protocol pump inhibitors (PPIs) dosage compared to baseline at the 12-month follow-up were reported.

Time Frame

Up to 12 months

Title

Number of Participants Experiencing Serious Device and/or Procedure Related Adverse Events After LINX Placement Out to 12 Months

Description

Time Frame

Up to 12 months

10. Eligibility

Sex

All

Minimum Age & Unit of Time

22 Years

Accepts Healthy Volunteers

Eligibility Criteria

INCLUSION CRITERIA Subjects included in the study must meet all the following criteria: Age >22 years Laparoscopic sleeve gastrectomy (LSG) for obesity >12 months prior to proposed device implantation date. Subject is a surgical candidate, i.e. is able to undergo general anesthesia and laparoscopic surgery. Documented typical symptoms of GERD for longer than 6 months (regurgitation or heartburn which is defined as a burning epigastric or substernal pain which responds to acid neutralization or suppression). Subject requires daily proton pump inhibitor or other anti-reflux drug therapy. Total distal ambulatory esophageal pH must meet the following criteria: pH <4 for >4.5% of the time. Note: Subjects shall have discontinued any GERD medications for at least 7 days prior to testing, with the exception of antacids up to the morning of testing. Subjects with symptomatic improvement on PPI therapy demonstrated by a GERD-HRQL score of <10 on PPI and >15 off PPI, or subjects with a >6 point improvement when comparing their on PPI and off PPI GERD-HRQL scores. GERD symptoms, in absence of PPI therapy (minimum 7 days). If the subject is of child bearing potential must have a negative pregnancy test within one week prior to implant and must agree to use effective means of birth control during the course of the study. Subject is willing and able to cooperate with follow-up examinations Subject has been informed of the study procedures and the treatment and has signed an informed consent form. EXCLUSION CRITERIA Subjects should be excluded from the study based on the following criteria: The procedure is an emergency procedure. Suspected or known allergies to titanium, stainless steel, nickel, or ferrous materials. Presence of ˃3 cm hiatal hernia as determined by endoscopy or barium esophagram. Subject had any major complications related to the laparoscopic sleeve gastrectomy that may interfere with, or increase the risks of the LINX procedure (such as, but not limited to, leaks from the gastric remnant and infection at the sleeve gastrectomy) Plans to surgically revise the gastric pouch (either known preoperatively or decided intraoperatively) Currently being treated with another investigational drug or investigational device. Suspected or confirmed esophageal or gastric cancer or prior gastric or esophageal surgery or endoscopic intervention for GERD (with the exception of sleeve gastrectomy). Distal amplitude <35 mmHg or <70% peristaltic sequences (if using Conventional Manometry). -or- If using High Resolution Manometry (exclude for any of the following): Distal Contractile Integral (DCI) ≤ 450 mmHg·s·cm or ≥ 50% ineffective swallows or ≥ 50% fragmented swallows (Fragmented swallows are defined as those with a ≥ 5cm break [large] in peristaltic integrity). Presence of esophagitis - Grade C or D (LA Classification). BMI >35. Symptoms of dysphagia more than once per week within the last 3 months. Diagnosed with Scleroderma. Diagnosed with an esophageal motility disorder such as but not limited to achalasia, nutcracker esophagus, or diffuse esophageal spasm or hypertensive LES. Subject has a history of or known esophageal stricture or gross esophageal anatomic abnormalities (Schatzki's ring, obstructive lesions, etc.) Subject has esophageal or gastric varices History of/or known Barrett's esophagus. Note: The diagnosis of Barrett's esophagus requires both endoscopic and histologic evidence of metaplastic columnar epithelium. Endoscopically, there must be columnar epithelium within the esophagus. Histologically, the epithelium must be metaplastic, as defined by the presence of goblet cells.by Subject cannot understand trial requirements or is unable to comply with follow-up schedule Pregnant or nursing, or plans to become pregnant during the course of the study. Any reason which the Investigator believes may cause the subject to be non-compliant with or unable to meet the protocol requirements. Subject has an electrical implant or metallic, abdominal implants.

Overall Study Officials:

First Name & Middle Initial & Last Name & Degree

William J. Petraiuolo, MD

Organizational Affiliation

Ethicon Endo-Surgery

Official's Role

Study Director

Facility Information:

Facility Name

Northwest Allied Bariatric & Foregut Surgery

City

Tucson

State/Province

Arizona

ZIP/Postal Code

85741

Country

United States

Facility Name

Mercy Health Northwest Arkansas

City

Rogers

State/Province

Arkansas

ZIP/Postal Code

72758

Country

United States

Facility Name

Keck Medical Center of USC

City

Los Angeles

State/Province

California

ZIP/Postal Code

90033

Country

United States

Facility Name

Institute of Esophageal and Reflux Surgery

City

Englewood

State/Province

Colorado

ZIP/Postal Code

80113

Country

United States

Facility Name

RWJBH Univ. Hospital Somerset/Advanced Surgical and Bariatrics of NJ, PA

City

Somerset

State/Province

New Jersey

ZIP/Postal Code

08873

Country

United States

Facility Name

Buffalo General Medical Center

City

Buffalo

State/Province

New York

ZIP/Postal Code

14203

Country

United States

Facility Name

Adirondack Surgical Group

City

Saranac Lake

State/Province

New York

ZIP/Postal Code

12983

Country

United States

Facility Name

East Carolina University

City

Greenville

State/Province

North Carolina

ZIP/Postal Code

27834

Country

United States

Facility Name

University Hospitals Cleveland Medical Center

City

Cleveland

State/Province

Ohio

ZIP/Postal Code

44106

Country

United States

Facility Name

Coastal Carolina Bariatric & Surgical Center

City

Summerville

State/Province

South Carolina

ZIP/Postal Code

29485

Country

United States

Facility Name

Panhandle Weight Loss Center

City

Amarillo

State/Province

Texas

ZIP/Postal Code

79106

Country

United States

Facility Name

Gunderson Health System

City

La Crosse

State/Province

Wisconsin

ZIP/Postal Code

54601

Country

United States

12. IPD Sharing Statement

Plan to Share IPD

Learn more about this trial

LINX Reflux Management System in Subjects With GERD Who Have Previously Undergone a Laparoscopic Sleeve Gastrectomy

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