The ReNEW Study: Maestro® New Enrollment Post-Approval Study Protocol

NCT ID: NCT03145636

Last Updated: 2019-05-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

4 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-08-30

Study Completion Date

2024-12-31

Brief Summary

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This is a five-year, single arm, multi-center trial to evaluate the long-term safety and efficacy of the Maestro Rechargeable System in treating obesity. The study will include an observational arm and a randomized sub-study.

Detailed Description

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The study evaluates the safety and efficacy of the vBloc Therapy delivered by the Maestro Rechargeable System for the treatment obesity. The Maestro Rechargeable System delivers intermittent, electrical blocking signals to the anterior and posterior trunks of the intra-abdominal vagus nerve (termed vBloc Therapy) and is designed to reduce sensations of hunger and produce satiety leading to weight loss.

Subjects in the observational arm (100 subjects total) will receive the device implant and use the vBloc Achieve Weight Management Program.

The randomized sub-study (100 subjects) will randomly assign subjects (1:1) to either treatment (50 subjects) or control (50 subjects). The treatment arm will receive the device implant and use of the vBloc Achieve Weight Management Program. The control arm will participate in the Control Weight Management (CWM) during a 6 month period prior to receiving the device implant and using the vBloc Achieve program.

The vBloc Achieve Weight Management Program consists of recommendations regarding diet, exercise and behavior modification, and will be utilized by all subjects following their device implant.

Conditions

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Obesity, Morbid

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Observational arm

Subjects will receive the device implant and use the vBloc Achieve Weight Management Program.

Group Type OTHER

vBloc Maestro Rechargeable System

Intervention Type DEVICE

Intra-abdominal vagal blocking neuromodulation device for the treatment of obesity

vBloc Achieve Weight Management Program

Intervention Type OTHER

Remotely accessible web-based program to add additional support to subjects with vBloc therapy

Randomized sub-study -Treatment

Subjects will be randomly assigned (1:1) either to treatment or control. Treatment arm will receive the device and use of vBloc Achieve Weight Management Program.

Group Type OTHER

vBloc Maestro Rechargeable System

Intervention Type DEVICE

Intra-abdominal vagal blocking neuromodulation device for the treatment of obesity

vBloc Achieve Weight Management Program

Intervention Type OTHER

Remotely accessible web-based program to add additional support to subjects with vBloc therapy

Randomized sub-study - Control

Subjects will be randomly assigned (1:1) either to treatment or control. Control will participate in a Control Weight Management (CWM) program for 6 months prior to receiving the device implant and using the vBloc Achieve program.

Group Type OTHER

vBloc Maestro Rechargeable System

Intervention Type DEVICE

Intra-abdominal vagal blocking neuromodulation device for the treatment of obesity

vBloc Achieve Weight Management Program

Intervention Type OTHER

Remotely accessible web-based program to add additional support to subjects with vBloc therapy

Control Weight Management (CWM) program

Intervention Type OTHER

In person visits with Registered Dietician, or trained staff who will counsel subjects on energy balance, dietary intake, physical activity and eating behavior modification.

Interventions

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vBloc Maestro Rechargeable System

Intra-abdominal vagal blocking neuromodulation device for the treatment of obesity

Intervention Type DEVICE

vBloc Achieve Weight Management Program

Remotely accessible web-based program to add additional support to subjects with vBloc therapy

Intervention Type OTHER

Control Weight Management (CWM) program

In person visits with Registered Dietician, or trained staff who will counsel subjects on energy balance, dietary intake, physical activity and eating behavior modification.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Signed informed consent
2. Body mass index (BMI) ≥ 40 kg/m2 to 45 kg/m2 or BMI ≥ 35 kg/m2 to 39.9 kg/m2 with one or more obesity related co-morbid conditions
3. Females or males. Note: females of child-bearing potential must have a negative urine pregnancy test at Screen and also within 14 days of implant procedure followed by physician-approved contraceptive regimen for the duration of the study period.
4. At least 18 years of age
5. Failure to respond to supervised diet/exercise program(s) in which the subject was engaged within the last five years
6. Ability to complete all study visits and procedures

Exclusion Criteria

1. Patients with cirrhosis of the liver, portal hypertension, or esophageal varices.
2. Patients with a large (\>5cm) symptomatic hiatal hernia
3. Patients for whom magnetic resonance imaging (MRI) is planned
4. Patients at high risk for surgical complications
5. Patients who have a permanently implanted, electrical-powered medical device or gastrointestinal device or prosthesis (e.g. pacemakers, implanted defibrillators, neurostimulators)
6. Patients for whom shortwave, microwave, or therapeutic ultrasound diathermy is planned Note: Diathermy is any treatment that uses high-frequency electromagnetic radiation, electric currents, or ultrasonic waves to produce heat in body tissues. Patients absolutely CANNOT be treated with any type of shortwave, microwave, or therapeutic ultrasound diathermy device whether or not it is used to produce heat. These treatments should not be applied anywhere on the body.
7. Current medical condition that, in the opinion of the investigator, would make the subject unfit for surgery or that would be exacerbated by intentional weight loss. Some examples include diagnosis of cancer, recent heart attack, recent stroke or serious trauma.
8. Recent cessation of cigarette smoking (prior 2 months)
9. History of bariatric surgery, Nissen fundoplication, gastric resection, major upper-abdominal surgery, or other abdominal procedures at the discretion of the investigator (acceptable surgeries include cholecystectomy or hysterectomy)
10. Patients with recent (\<2 years) or current history of illicit drug abuse
11. Patients with significant psychiatric disease including borderline personality disorder, psychosis, schizophrenia, unstable depression, suicidal ideation, or mental retardation
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ReShape Lifesciences

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Charles J Billington, MD

Role: PRINCIPAL_INVESTIGATOR

University of Minnesota

Locations

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HonorHealth

Scottsdale, Arizona, United States

Site Status

Winthrop University Hospital

Mineola, New York, United States

Site Status

Countries

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United States

Other Identifiers

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D01569-000

Identifier Type: -

Identifier Source: org_study_id

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