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An Observational Clinical Feasibility Study of the Magnetic Esophageal Sphincter

An Observational Clinical Feasibility Study of the Magnetic Esophageal Sphincter

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01058070
Enrollment
44
Registered
2010-01-28
Start date
2007-02-28
Completion date
2013-08-31
Last updated
2021-02-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastroesophageal Reflux Disease

Keywords

GERD

Brief summary

Magnetic Esophageal Sphincter implant is intended to reinforce Esophageal Sphincter function in the treatment of Gastroesophageal Reflux Disease (GERD)

Detailed description

The purpose of this feasibility study is to collect preliminary performance and safety information and develop procedural optimization for the Torax Medical Inc. Magnetic Esophageal Sphincter device (MES) in reinforcement of Esophageal Sphincter function to treat Gastroesophageal Reflux Disease (GERD). The information from this study will be used to support the design and conduct of an expanded clinical trial.

Interventions

DEVICETorax Medical, Inc. LINX Reflux Management System

Implantable device, Magnetic Esophageal Sphincter

Sponsors

Torax Medical Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years, \< 85 years, life expectancy \> 3yrs. * Documented history of GERD symptoms such as heartburn and/or regurgitation. * On daily PPI treatment for at least 3-months. * Responsive to PPI treatment. * GERD symptoms, in absence of PPI therapy (minimum 10 days). * Ambulatory Esophageal pH \< 4 for ≥ 5% time or pH \< 4 for ≥ 3% time in supine position. * Patient is a surgical candidate. * Patient is willing and able to cooperate with follow-up examinations. * Patient has been informed of the study procedures and the treatment and has signed an informed consent form and provided authorization to use and disclose information for research purposes (HIPAA).

Exclusion criteria

* The procedure is an emergency procedure. * Patient is currently being treated with another investigational drug or investigational device. * Patient has had prior gastric or esophageal surgery. * Patient has had any previous endoscopic intervention for GERD * Patient has suspected or confirmed esophageal or gastric cancer. * Patient has any size paraesophageal hiatal hernia or sliding hiatal hernia ≥3cm. (Investigator to identify and record type of hiatal hernia at the time of assessment (i.e. para-esophageal, sliding)). * Patient's esophageal motility is less than 35 mmHg peristaltic amplitude on wet swallows or \> 30% failed (non-propulsive) peristaltic sequences. * Patient has esophagitis - Grade B, C, D (LA Classification). * Patient has Barretts Esophagus. * Patient has BMI \> 35. * Patient has symptoms of dysphagia or indications of dysphagia from barium esophagram. * Patient has Scleroderma and/or Achalasia. * Patient has an esophageal stricture or gross esophageal anatomic abnormalities (obstructive lesions, etc.). * Patient has an electrical implant or metallic, abdominal implant(s). * Patient cannot understand trial requirements or is unable to comply with follow-up schedule. * Patient is pregnant or nursing, or plans to become pregnant. * Patient has a psychiatric disorder.

Design outcomes

Primary

MeasureTime frameDescription
To Evaluate the Incidence of All Adverse Events at Various Time Points.5 years
To Monitor the Improvement of GERD Symptoms.5 yearsPercentage of participants with a 50% or more reduction in total GERD-HRQL score is indicative of a substantial improvement in GERD symptoms

Countries

Italy, Netherlands, United States

Participant flow

Participants by arm

ArmCount
Implantable Device
Torax Medical, Inc. LINX Reflux Management System: Implantable device, Magnetic Esophageal Sphincter
44
Total44

Baseline characteristics

CharacteristicImplantable Device
Age, Continuous42.8 years
Body Mass Index (BMI)25.7 kg/m^2
Gastroesophageal Reflux Disease-Health Related Quality of Life (GERD-HRQL)26.5 scores on a scale
Sex: Female, Male
Female
18 Participants
Sex: Female, Male
Male
26 Participants
% time esophageal pH<411.9 percentage

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
25 / 44
serious
Total, serious adverse events
3 / 44

Outcome results

Primary

To Evaluate the Incidence of All Adverse Events at Various Time Points.

Time frame: 5 years

ArmMeasureValue (NUMBER)
LINX Study SubjectsTo Evaluate the Incidence of All Adverse Events at Various Time Points.29 participants
Primary

To Monitor the Improvement of GERD Symptoms.

Percentage of participants with a 50% or more reduction in total GERD-HRQL score is indicative of a substantial improvement in GERD symptoms

Time frame: 5 years

ArmMeasureValue (NUMBER)
LINX Study SubjectsTo Monitor the Improvement of GERD Symptoms.93.9 percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 30, 2026