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[IP] Trial of Artificial Pancreas Set for Launch
I just received this, and thought it might be of interest to the group. Of
course, I remain a bit skeptical. I've been hearing claims for the past 26
years that these things are always just around the corner, and researchers
have yet to address the other half of the problem -- not one of the
"artificial pancreas" being tested provide a counter-regulatory mechanism
(e.g. alpha cells that produce glucagon) which are also part of the islet
cells that are destroyed in the Type 1 autoimmune process, so they aren't
really a cure, but they might make day-to-day management a bit easier.
Trial of Artificial Pancreas Set for Launch
Source: American Diabetes Association
Publication date: 2002-05-13
By Manfreda Cavezza
LONDON - Clinical trials will begin next month for a prototype artificial
pancreas designed for use in patients with type 1 diabetes.
Scientists at City University here say the artificial organ should be able to
help patients with the disease, whose bodies do not produce the blood
sugar-processing hormone insulin, to have better controlled blood sugar and
fewer episodes of dangerously low blood sugar, or hypoglycemia, than are
achievable with insulin pumps.
The prototype pancreas delivers insulin continuously under the skin and
maintains blood sugar, or glucose, at a constant level, Dr. Roman Hovorka told
Reuters Health in an interview. "It has the potential to reduce the most
dangerous aspects of diabetes such as hypoglycemia, amputations and
blindness," Hovorka said.
The prototype is made up of three parts: a sensor placed on the skin that
measures blood glucose levels, a hand-held computer that analyses this
information, and a small pump that infuses glucose into the body.
"It will be small enough for men to fit it on their belts or women to place it
inside their bras," said Hovorka. He hopes the product will be on the market
in 5 years.
Funded by the European Commission and insulin pump manufacturer Disetronic,
the project is believed to be at a further stage than similar versions in the
US. Hovorka said that US competitors have still not begun clinical trials.
The first randomised controlled trial for the prototype takes place next month
in a hospital in Austria. Twelve patients will be maintained in the hospital
for 24 hours on two occasions. They will first be given treatment via insulin
pumps currently used in Europe, and will then use the artificial pancreas.
Since January 2000, Hovorka has tested the prototype on over 20 volunteers in
Austria and Italy, achieving "very promising results." Their glucose levels
were maintained at an average of 6.2 mmol/L (125 mg/dL). The normal level is
about 5.5 mmol/L (111 mg/dL), and most patients with type 1 or
insulin-dependent diabetes can only maintain an average of 8.9 mmol/L (179
mg/dL) using the methods currently available, he noted.
A unique computer model of the disease, on display at City University on
Friday, has also aided research. Nicknamed Bina, the computer holds data on a
number of diabetic profiles. The scientists were able to evaluate various
components of the prototype without the need for animal testing using the
"We believe this product will have a significant and important effect on the
lives of people with type 1 diabetes. But the technology is expensive, so we
will not be able to help everyone," added Hovorka.
Copyright ) 2002 Reuters Limited.
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