Hier können SIe einen grafischen Film ( in drei Teile) mit der
Einbringung des EndoBarriers sehen: 1) EndoBarrier
1, 2) EndoBarrier
2 and 3) EndoBarrier
3.
Starkes Übergewicht - auch Obesitas oder Fettleibigkeit genannt - ist ein
im wahrsten Sinne des Wortes wachsendes Problem unserer Gesellschaft. Und
das nicht nur für die Patienten selbst, sondern auch für Chirurgen, die
stark übergewichtige Patienten operieren müssen. Als erstes Krankenhaus in
Europa setzt das Universitätsklinikum Maastricht (azM) jetzt im Kampf gegen
die Fettleibigkeit eine neue Waffe ein: den Endobarrier. Bei fettleibigen
Patienten, die sich einer Operation unterziehen müssen, wird (über
Speiseröhre und Magen) eine Art Hülse in den Zwölffingerdarm eingebracht.
Sie hilft dem Patienten dabei, vor einer Operation schnell an Gewicht zu
verlieren. Mit der Operation selbst sind anschließend weniger Risiken
verbunden und der Chirurg kann besser arbeiten - zum Vorteil des Patienten.
Erstmals
Prof. Dr. Jan Willem Greve und Dr. Nicole
Bouvy, beide Chirurg am azM, setzen die neue Methode gemeinsam mit den
Fachärzten für Gastrologie Dr. Wim Hameeteman und Dr. Ger Koek erstmals in
Europa ein. Im Rahmen der weltweit ersten Zufallsstudie untersuchen sie
Einsatz und Wirkung der so genannten Endobarrier-Methode.
Der endoluminale sleeve - kurz Endobarrier genannt - sieht aus wie
eine lange, schmale Hülse. Sie wird vom Chirurgen mit einem Endoskop (einem
Schlauch, der durch die Speiseröhre und den Magen eingeführt wird, also
ohne Operation) in einer Kapsel in den Zwölffingerdarm eingebracht. In der
Kapsel befindet sich die zusammengefaltete Folie der Hülse, an deren Ende
ein kleiner Anker befestigt ist. Hiermit verankert der Chirurg den
Endobarrier kurz hinter dem Übergang zwischen Magen und Zwölffingerdarm.
Alle Nahrung, die der Patient nach dem Eingriff zu sich nimmt, kommt nun
nicht mehr mit den Wänden des Zwölffingerdarms in Berührung. Die
Verdauungssäfte werden an der Außenseite der Hülse zurückgehalten.
Idee
Die Idee zum Endobarrier stammt von den
Forschern des amerikanischen Unternehmens GI Dynamics. Hier wurde die neue
Methode entwickelt und gestestet. Danach wurden in Chile und Brasilien
Machbarkeitsstudien durchgeführt und wurde die Methode in experimentellen
Anwendungen getestet. Die Maastrichter Chirurgen haben "die Hülse" bereits
bei 15 Patienten eingesetzt, jeweils im Rahmen der Vorbereitung auf eine
Operation. Meist handelte es sich hierbei um einen so genannten
Magen-Bypass.
Vorteile
Man verspricht sich viel von der neuen
Methode. Mit dem Endobarrier verliert der Patient nicht nur viel Gewicht in
kurzer Zeit (rund 15 Kilo in drei Monaten). Durch den Eingriff verringert
sich auch das Operationsrisiko und die Organe können besser funktionieren,
weil das Fett ringsum die Organe als erstes abgebaut wird.
Prof. Dr. Greve und Dr. Bouvy sehen mittelfristig aber noch weitere
Vorteile: "Der Drang zu essen, nimmt auch dadurch ab, dass sich die
Entleerung des Magens ändert. Bemerkenswert ist außerdem, dass durch den
Endobarrier die Symptome der Diabetes verschwinden, so lange die Hülse im
Darm verbleibt. Innerhalb nur einer Woche konnten Diabetespatienten ihre
Medikamente absetzen. Das ist vermutlich darauf zurückzuführen, dass sich
die Insulinempfindlichkeit infolge der veränderten Freisetzung von
Darmhormonen durch die Hülse verändert. Diese Aspekte müssen wir noch näher
untersuchen."
Anwendung
Bei allen bisherigen Patienten wurde der
Endobarrier nach drei Monaten wieder entfernt. Wie sich eine längere
Anwendung auswirkt, muss noch untersucht werden. Bis dahin bleibt der
Endobarrier ein ideales Vorbereitungsmittel für Menschen mit hohem
Operationsrisiko und für Patienten, die die Wartezeit vor einer
Magen-Bypass-Operation überbrücken müssen.
University hospital Maastricht
Health care and health care research are both highly dynamic fields.
Doctors, paramedics and scientists are constantly having to deal with
changes, be it in the organisation, in the financing of care, or in the
growing demand for high-quality care products. In addition to developments
in curative health care, there is a growing focus on prediction and
prevention
The University Hospital Maastricht (azM) and the Faculty of Health,
Medicine and Life Sciences of Maastricht University (UM) are in the midst
of these developments and are continually looking for effective and
ambitious solutions to the challenges they face.
The main tasks of the university hospital Maastricht are patient care,
education and research, all of which are closely interrelated. In addition
to standard patient care, top referral care and advanced clinical care play
an important role at azM.
Advanced clinical care and top referral care require fine-tuning and close
cooperation with the fundamental research at the Faculty of Health,
Medicine and Life Sciences of Maastricht University and
(experimental) clinical research at azM.
Key research areas are cardiovascular diseases, oncology, chronic diseases
and mental health care and neurosciences.
azM is located in the centre of the Euregion Meuse-Rhine. University
hospitals in Liege and Aachen lie within a range of just thirty kilometres.
Intensifying collaboration in the Euregion is one of the hospital's main
goals.
The university hospital Maastricht ( www.azm.nl and www.summum.mumc.nl )
has 715 hospital beds and over 4.700 employees. It is part of the 'Dutch
Federation of University Medical Centers', the NFU ( www.nfu.nl ). The NFU
is a cooperative venture involving the eight university medical centers
(UMCs) in the Netherlands, with the primary aim of promoting the UMCs'
common interests.
GI Dynamics Information
Obesity and diabetes are rapidly growing worldwide
healthcare epidemics. Each affects over 1 billion people. Together,
diabetes and obesity are leading to huge increases in healthcare costs and
mortality rates, as well as a substantial reduction in quality of life for
those affected.
The EndoBarrier™ is initially being tested as a short-term, removable
weight loss device that is implanted endoscopically (through the mouth) for
up to 6 months in patients who are candidates for bariatric surgery, to
help them lose weight prior to their surgery. Eventually, the device
will be tested for longer periods of time.
"We are quite excited to start these trials," said prof. Greve. "We believe
that this product may be able to provide patients with a noninvasive way to
lose weight that is significantly more effective than drug therapy, and
safer and less invasive than surgery. It is an entirely new concept
that provides us with a novel therapy for obesity and type 2
diabetes."
Stuart Randle, CEO of GI Dynamics, said, "We are honored to be working with
Dr. Greve and his team. Their expertise in bariatric and diabetes
care is an enormous asset to our development and commercialization efforts.
This study is an important step in creating solutions to the growing
problems of obesity and diabetes. It holds the potential to have a profound
impact on public health."
About GI Dynamics
GI Dynamics is in clinical trials
in South America, Europe and the US with its EndoBarrier™ technology. GI
Dynamics, founded in 2003, is leading the development of novel, noninvasive
approaches to treat obesity, type 2 diabetes and related co-morbidities.
The patented EndoBarrier™ technology is designed to impact metabolic
processes by lining the proximal intestine, resulting in weight loss and
improved glycemic control. The company has raised $46 million in three
rounds from top-tier investors such as Advanced Technology Ventures,
Cutlass Capital, Domain Associates, Johnson & Johnson Development
Corporation and Polaris Venture Partners. GI Dynamics is led by an
experienced management team and has assembled a scientific advisory board
that includes internationally recognized leaders in bariatric surgery,
gastroenterology, obesity medicine and endocrinology.
Background
With an estimated 70 million adults now
obese in America, the Surgeon General and the health care community are
awakening to the epidemic proportions of this disease and its socioeconomic
implications. In the face of this growing crisis, attempts at medical
weight loss with or without pharmacologic intervention have been found
ineffective in the five million people annually seeking help.
Bariatric surgery works well but due to its invasiveness and cost,
surgeries are limited to 200,000 procedures performed annually. While
the US has the lead in this epidemic, the world wide impact is now also
being felt in numerous developing countries. The obesity problem cries out
for a new, innovative approach to help patients deal with this
disease. GI Dynamics is developing and commercializing revolutionary,
noninvasive, removable devices that modify metabolic pathways to treat
obesity and diabetes. In its animal and human clinical research, GI
Dynamics has discovered that use of its devices has an immediate and
profound effect on weight reduction as well as on reversing the clinical
impact of type 2 diabetes.
Product Technology Concept
GI Dynamics has developed
novel technologies for endoscopically-delivered and retrieved implants that
directly effect metabolic pathways. Its EndoBarrier™ intestinal liner
is an impermeable barrier that blocks food contact in the duodenum and
proximal jejunum. This intestinal bypass mimics the effect of the
Roux-en-Y gastric bypass surgery, producing similar weight loss and rapid
resolution of type 2 diabetes.
GI Dynamics is conducting several clinical trials which are showing that
the EndoBarrier technology can produce excess weight-loss of 30% at 6
months in morbidly obese patients. It has also shown the potential
for the rapid elimination of the need for medications to control glucose in
diabetics.
Studies in animal models of both obesity and diabetes have begun to
elucidate mechanisms of action that include a direct effect on glucose
homeostasis as a result of duodenal exclusion and the delivery of
undigested food to the proximal jejunum as well as delayed gastric
emptying.
Current Status
EndoBarrier™ intestinal implants are
in clinical trials globally and will begin a pivotal trial in the US next
year. The target market is substantial – twenty million Americans are
candidates for invasive bariatric surgery, and 60 million have BMI’s
between 30 and 40. These represent strong candidates for a safe,
noninvasive alternative to surgery or drug therapy.
History GID
GI Dynamics was founded in 2003 based on
the recognition of the emerging obesity problem and the invention of the
Endobarrier™ patented technology. It has subsequently raised $46 million in
three rounds from top tier venture capital companies including Advanced
Technology Ventures, Cutlass Capital, Domain Associates, Johnson &
Johnson Development Corporation and Polaris Venture Partners. The
company has also assembled a world class group of advisors with specialties
in bariatric surgery, gastroenterology, endocrinology and medical weight
loss.
Management GID
Stuart Randle, CEO; Andy Levine, CTO;
Sherrie Coval-Goldsmith, VP Clinical and Regulatory; Jonathan Hartmann, VP
Marketing, and Robert Crane, CFO.