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EnteroMedics Announces Data From Australian Patient Cohort in
EMPOWER Study and From Caloric Intake Study
Results to Be Presented at the 23rd Scientific Meeting of the Obesity Surgery Society of Australia and New Zealand
St. Paul, MN - November 8, 2010
EnteroMedics Inc., (NASDAQ: ETRM), the developer of medical devices
using neuroblocking technology to treat obesity and other gastrointestinal disorders, today announced
clinical results from the Australian patient cohort of its EMPOWER(TM) study and from a caloric intake
study of VBLOC® vagal blocking therapy delivered via the Maestro® System. The data will be presented
at the 23rd Scientific Meeting of the Obesity Surgery Society of Australia and New Zealand (OSSANZ),
being held November 10 - 12, 2010 in Hobart, Tasmania.
EMPOWER Study Australian Experience
The EMPOWER trial is a multi-center, randomized, double-blind, prospective, placebo-controlled pivotal
study designed to evaluate the safety and efficacy of the Company's first-generation Maestro RF System
in the treatment of obesity. In October 2009, EnteroMedics announced that the EMPOWER study did meet
its safety endpoint but did not meet its primary and secondary efficacy endpoints. In the Australian
cohort, a total of 83 subjects were enrolled at two centers, with 61 subjects implanted. Main outcome
measures were morbidity, mortality and excess weight loss (EWL) at 12 months. Results include:
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Mean 12-month EWL was 25% for the treatment group and 17% for the control group;
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Weight loss was linearly related to hours of device use; subjects with greater than or equal to 9 hours/day use achieved
37% and 21% mean EWL (treated versus control, p = .02); and
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No therapy-related serious adverse events or deaths were reported across the entire study population.
Caloric Intake Study
As part of the VBLOC-DM2 ENABLE trial, a feasibility study was conducted to evaluate satiety and
calorie intake in obese patients with type 2 diabetes mellitus that were implanted with the EnteroMedics'
second generation Maestro RC (Rechargeable) System. The Maestro RC System is powered by an internal
battery recharged by the patient for a short time each week, providing greater convenience in adhering
to recommended daily therapy. Ten obese patients at one center received VBLOC Therapy for 6 months.
Follow-up included body weights; 7-day diet records assessed by a nutritionist; calorie calculations;
and visual analogue scale (VAS) questions to assess satiety by 7-day or 24-hour recall at the following
time periods: baseline, 4 and 12 weeks and 6 months post device initiation. A validated program, Food
WorksTM, was used to determine calorie and nutrition content. Results include:
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Mean EWL for the study was 33% (p < 0.001) at 6 months;
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Calorie intake decreased by 45% (p < .001), 48% (p < .001) and 37% (p = .02), at 4 and 12 weeks and 6 months,
respectively, from a baseline of 2,062 kcal/day; and
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VAS recall data, using a repeated measures analysis, documented fullness at the beginning of meals
(p = .006) and less
food consumption (p = .02) corroborating the reduction in caloric intake.
"Data from the EMPOWER and caloric intake studies demonstrate a clear consistency
of weight loss and safety among obese patients using VBLOC Therapy," said President and Chief Executive
Officer Mark B. Knudson, Ph.D. "The caloric intake study in particular provides insight into the direct
effects of VBLOC Therapy on diet, satiety and corresponding weight loss over a six month period. We
expect that the totality of our clinical experience and the ongoing support of the Australian bariatric
surgical community will contribute to our objective of commercializing the Maestro RC System in this
major international market."
EnteroMedics announced in August its plans to commercialize the Maestro RC System
in Australia and to file an application for approval and listing with the Australian Therapeutic Goods
Administration upon CE Mark certification of the Maestro RC System. The Company also announced that it
has entered into a cooperation agreement with the Australian Institute of Weight Control (AIWC), a
network of bariatric clinics specializing in laparoscopic weight loss surgery and clinical research for
the morbidly obese, to help commercialize and market the Maestro System in Australia, among other efforts.
About Obesity in Australia
According to the Australian Bureau of Statistics, in 2008 sixty-two percent of all adults in Australia
were either overweight (BMI > 25) or obese (BMI > 30). It is estimated that by 2025, 7.2 million
Australians could be obese. The Australian Federal Minister has declared obesity a national priority,
with obesity related costs exceeding $21 billion annually. Approximately 13,900 bariatric surgeries were
performed in Australia in 2008.
About VBLOC Therapy
EnteroMedics developed VBLOC® vagal blocking therapy to offer bariatric surgeons and their patients
a less invasive alternative to existing surgical weight loss procedures that may present significant
risks and alter digestive system anatomy, lifestyle and food choices. VBLOC Therapy is delivered via
the Maestro® System through laparoscopically implanted leads to intermittently block the vagus nerves
using high-frequency, low-energy electrical impulses. VBLOC Therapy is designed to target the multiple
digestive functions under control of the vagus nerves and to affect the perception of hunger and
fullness.
About the EMPOWER Trial
The EMPOWER trial is a multi-center, randomized, double-blind, prospective, placebo-controlled
pivotal study. On October 2, 2009, EnteroMedics announced preliminary results from the trial
indicating that based on an initial analysis, the study met its safety endpoint, but did not
meet its primary and secondary efficacy endpoints. The overall study results showed that for
all patients (n=253), the average EWL at 12 months was 16.6% EWL (BMI) from implant (12.1% from
initiation, MetLife) for the treatment arm and 16.4% EWL (BMI) from implant (12.0% from initiation,
MetLife) for the control arm. The review further suggests that patients that used the device for
the prescribed amount of time (greater than or equal to 9 hours) had clinically meaningful
weight-loss, that both the treatment and control arm subjects experienced comparable, significant,
dose-dependent EWL at 12 months, and that there was an unanticipated therapeutic effect in which a
low-intensity blocking signal introduced VBLOC therapy in human subjects in the control group. As
of October 20, 2010, 159 patients have an average EWL of 19.4% at 24 months.
About the VBLOC-DM2 ENABLE Trial
The VBLOC-DM2 ENABLE trial is an international, open-label, prospective, multi-center study
designed to evaluate the efficacy of VBLOC therapy by measuring average percentage EWL, HbA1c
(blood sugar) and FPG (fasting plasma glucose) and blood pressure at one week, one month, three,
six and 12 months and possibly longer in approximately 30 subjects. The Maestro RC System is
powered by an internal battery recharged via an external mobile charger and transmit coil worn
by the patient for a short time each week. To date, no deaths or medically serious device related
adverse events have been reported during the VBLOC-DM2 ENABLE trial and the safety profile is similar
to that seen in the other VBLOC trials. As of October 20, 2010, 25 subjects have an average EWL of
25.3% and a one percentage point reduction in HbA1c levels from 7.6% to 6.6% at 12 months.
About EnteroMedics Inc.
EnteroMedics is a development stage medical device company focused on the design and development of
devices that use neuroblocking technology to treat obesity and other gastrointestinal disorders.
EnteroMedics' proprietary neuroblocking technology, VBLOC® vagal blocking therapy, is designed to
intermittently block the vagus nerves using high-frequency, low- energy, electrical impulses. These
electrical impulses are delivered by a neuroregulator which is powered either by an external controller
(Maestro RF System) or an integrated rechargeable battery (EnteroMedics' next-generation Maestro RC
System). EnteroMedics is currently conducting a feasibility study examining VBLOC Therapy's effects
on blood glucose levels in diabetic patients outside of the United States. For more information, visit
www.enteromedics.com.
Forward-Looking Safe Harbor Statement:
This press release contains forward-looking statements about EnteroMedics Inc. Our actual results
could differ materially from those discussed due to known and unknown risks, uncertainties and other
factors including our limited history of operations; our losses since inception and for the foreseeable
future; our lack of regulatory approval for our Maestro® System for the treatment of obesity; our
preliminary findings from our EMPOWER(TM) pivotal trial; our ability to comply with the Nasdaq continued
listing requirements; our ability to commercialize our Maestro System; our dependence on third parties
to initiate and perform our clinical trials; the need to obtain regulatory approval for any modifications
to our Maestro System; physician adoption of our Maestro System and VBLOC® vagal blocking therapy; our
ability to obtain third party coding, coverage or payment levels; ongoing regulatory compliance; our
dependence on third party manufacturers and suppliers; the successful development of our sales and marketing
capabilities; our ability to raise additional capital when needed; our ability to attract and retain
management and other personnel and to manage our growth effectively; potential product liability claims;
potential healthcare fraud and abuse claims; healthcare legislative reform and our ability to obtain and
maintain intellectual property protection for our technology and products. These and additional risks and
uncertainties are described more fully in the Company's filings with the Securities and Exchange Commission,
particularly those factors identified as "risk factors" in the Company's Form 10-K dated March 29, 2010.
We are providing this information as of the date of this press release and do not undertake any obligation
to update any forward-looking statements contained in this document as a result of new information, future
events or otherwise.
Caution-Investigational device. Limited by U.S. Federal law to investigational use.
The implantation procedure and usage of the Maestro® System carry some risks, such as
the risk generally associated with laparoscopic procedures and those related to treatment as described in
the EMPOWER clinical trial informed consent.
Contact:
EnteroMedics Inc.
Greg S. Lea
(651) 789-2860
Email Contact
Source: EnteroMedics News Provided by Acquire Media
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