"VBLOC Therapy offers an entirely new approach to the treatment of obesity," said
The Maestro System is a pacemaker-like device that is implanted, usually in an outpatient procedure, to control both hunger and fullness by intermittently blocking the primary nerve which regulates the digestive system, the vagus nerve. VBLOC Therapy does not surgically alter or restrict the digestive system, does not create barriers to prevent absorption of nutrients and is completely reversible, allowing patients to lose weight without lifestyle compromises.
"Obesity is a global epidemic with far-reaching cost and consequences to both public and personal health," said
Information about the Maestro System and VBLOC Therapy
Approval of the Maestro Rechargeable System was based on the ReCharge Study, a randomized, double-blind, sham-controlled trial to evaluate the safety and effectiveness of the Maestro Rechargeable System in treating obesity. In an intention to treat (ITT) analysis of the study results, VBLOC-treated patients achieved 24.4% excess weight loss (EWL) at 12 months. At 18 months, VBLOC-treated patients maintained a 23.5% EWL. In a responder analysis of the ITT population at 12 months, over 50% of VBLOC-treated patients achieved 20% or greater EWL.
The SAE (severe adverse event) rate, defined as the proportion of subjects in the VBLOC treated group who experienced an implant/revision procedure, device or therapy-related SAE through 12 months post-implant, was 3.7% (n=6; 95% CI: 1.4% to 7.9%) in the ITT population. The most common ( > 10%) non-serious adverse events related to device, implant/revision procedure or therapy were pain at the neuroregulator site, and transient sensations of therapy such as heartburn/dyspepsia.
VBLOC Therapy is contraindicated for use in patients with cirrhosis of the liver, portal hypertension, esophageal varices or an uncorrectable, clinically significant hiatal hernia; patients for whom magnetic resonance imaging (MRI) or diathermy use is planned; patients at high risk for surgical complications; and patients who have a permanently implanted, electrical-powered medical device or gastrointestinal device or prosthesis (e.g. pacemakers, implanted defibrillators, neurostimulators).
If you are interested in learning more about VBLOC Therapy, please visit www.enteromedics.com/vbloc or call 1-800-MY-VBLOC.
For additional prescribing information, please visit www.enteromedics.com.
A multimedia version of this release, with links to graphics and additional background information can be found at: http://www.multivu.com/players/English/7269351-enteromedics-fda-approval-vbloc-maestro-system-weight-loss-device.
Obesity Facts and Figures
According to the CDC, more than one-third of U.S. adults live with obesity1. The estimated annual cost of obesity in the U.S. was
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Forward-Looking Safe Harbor Statement:
This press release contains forward-looking statements about
Important Safety Information
Talk with your doctor about the full risks and benefits of VBLOC® Vagal Blocking Therapy and the Maestro® Rechargeable System.
What is the Maestro System Used For:
The Maestro System is for use in helping with weight loss in people aged 18 years through age 65 who are obese, with a Body Mass Index (BMI) of 40 to 45 kg/m2, or a BMI of 35 to 39.9 kg/m2 with a related health condition such as high blood pressure or high cholesterol levels. Individuals should have first tried to lose weight by diet and exercise in a supervised program within the last 5 years before receiving the Maestro System.
You should not have an implanted Maestro Rechargeable System if you have cirrhosis (a disease of the liver), portal hypertension (high blood pressure in the veins of the liver), esophageal varices (enlarged veins at the lower end of the tube between the mouth and the stomach) or an uncorrectable, clinically significant hiatal hernia (a condition where part of the stomach pushes up or through the diaphragm where the tube between the mouth and the stomach passes through to connect to the stomach); patients for whom magnetic resonance imaging (a type of medical imaging that uses strong magnets and pulses of radio waves) is planned; patients at high risk for surgical complications; patients who have a permanently implanted, electrical-powered medical device; or patients for whom diathermy (a type of medical procedure that heats and destroys tissue) is planned.
Seek guidance from your doctor before you undergo a medical or surgical procedure, as interaction of the Maestro System with certain medical therapies, procedures or other implanted or body worn medical devices may harm you, cause damage to the implanted device or may turn therapy off. These may include, but are not limited to, lithotripsy (use of high energy shock waves to break up stones), radiation, mono polar electrosurgical instruments (a type of surgical instrument), positron emission tomography scans (a type of medical imaging), radiofrequency ablation (a method of destroying tissue used during surgery), heart pacemakers or defibrillators, neurostimulators, and insulin pumps. Turning, twisting, or manipulating the implanted components may damage the nerves or implanted device. System components must be kept charged to prevent damage, which may require additional surgery to replace the implanted device. The neuroregulator should be fully charged prior to turning it off. The Maestro System is MR Unsafe, including for patients in which the Maestro System was explanted and not all components were removed. Portable outlets or extension cords should not be connected to the AC recharger. Do not immerse external system components in fluid. Keep strong magnets at least 6 inches away from the implanted device. The Maestro Rechargeable System may activate metal detectors or other security systems. Strong magnetic fields systems that emit radio frequency signals may interfere with the function of the Maestro System. The neuroregulator and mobile charger should be turned off near metal detectors, other security systems, strong magnetic fields and radio frequency emitting systems. The mobile charger should be turned off while aboard aircraft. Infection at the implant site may occur and could require use of antibiotic medications, surgery, or explant. Do not modify any components of the system. Safety and effectiveness of the Maestro Rechargeable System has not been established for use within a hyperbaric chamber (chamber designed to supply oxygen at a higher than normal air pressure), with external defibrillation, during pregnancy, or for use in patients under 18 years of age. The capacity of the rechargeable neuroregulator battery will diminish over time, requiring longer or more frequent charging. Do not operate the system in flammable environments, or if components appear damaged. Do not cover the mobile charger when in use to prevent overheating and damage. You may not be able to operate the Maestro System if you have impaired vision. Make sure all of your health care providers are aware that you have an implanted Maestro System.
The most common related adverse events that were experienced during clinical study of the Maestro Rechargeable System included pain, heartburn, nausea, difficulty swallowing, belching, wound redness or irritation, and constipation.
1 Prevalence of Childhood and Adult Obesity in
2 Cawley, John, and
4 Cawley, John, and
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