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Biotech / Medical : NexStar Pharm(NXTR) -- Ignore unavailable to you. Want to Upgrade?


To: Biomaven who wrote (237)11/2/1997 7:24:00 PM
From: Miljenko Zuanic  Respond to of 328
 
Peter,

Thanks for respond. You did clear (and confirm) few things in my mind.

With fresh convertible debenture financing Warburg will increase total NXTR holding to +35%. This is bullish, and they are more likely one who are protecting long term investment with large short interest. Concern about market!

On the other hand this short position was absorbed with new investors or one who are increasing position. Now, I am worrying less about short interest. With positive news and market rebound, NXTR may do well.

Regards the possible take-over, I heard last year about rumor that P&U and Abbott are looking (in middle west) for bt company which can add to bottom line. NXTR, with liposomal pipeline and SELEX promise, is attractive, but I am not betting penny on this possibility. All depend, at this time, what they are willing to offer?
Some story is now circulating about LIPO, and IMO this are *planted rumor*.

Off topic: I checked last SEC S-3 CELG file and didn't locate note that they will manufacture (or sell technology) chiral products for SEPR. ???

mz



To: Biomaven who wrote (237)11/11/1997 8:55:00 PM
From: Miljenko Zuanic  Respond to of 328
 
News on SELEX:

( BW)(NEXSTAR-PHARMA)(NXTR) NeXstar Pharmaceuticals Announces SELEX
Compounds Detect, Fight Inflammatory Disease in Animals

Business/Health Editors

BOULDER, Colo.--(BW HealthWire)--Nov. 11, 1997--This month, two leading scientific journals have
published results of preclinical research conducted by NeXstar Pharmaceuticals, Inc. (NASDAQ: NXTR) and
independent researchers using compounds developed through one of NeXstar's proprietary drug discovery
technologies called the SELEX process.
The journals "Current Biology" and "Chemistry and Biology" have published results from preclinical studies
that demonstrate the efficacy and therapeutic potential of SELEX-derived compounds, called aptamers, in
detecting and treating inflammatory disease in animals.
"This is the first time this novel type of compound was used in vivo (in the body) and proved to have
protective effects in the inflammatory lung model," said Dr. Peter Ward, professor and chairman of the
Department of Pathology at the University of Michigan School of Medicine. "This verifies this class of
compounds can be effective as anti-inflammatory agents and deserves additional study."
The paper published in "Current Biology," titled, "Protective Effects of an Aptamer Inhibitor of Neutrophil
Elastase in Lung Inflammatory Injury" details how researchers used an elastase inhibitor to reduce damage to the
lungs in animals undergoing an inflammatory attack. These studies target animal models for Acute Respiratory
Distress Syndrome (ARDS), a disease that threatens the lives of approximately 150 thousand Americans
annually, and for which there is no effective treatment.
The aptamer blocks the action of elastase, an enzyme which degrades lung connective tissue when released
inappropriately by white blood cells. If left untreated, this degradation can lead to lung failure and death. In
addition to reducing lung damage, the research shows that the elastase aptamer prevents the white blood cells
from further infiltration of the lungs, which may help to break the disease cycle. This work was a collaboration
between scientists at NeXstar Pharmaceuticals and at the University of Michigan Medical School.
The paper published in "Chemistry & Biology," titled "In Vivo Imaging of Inflammation by an Aptamer
Inhibitor of Human Neutrophil Elastase," shows that the same aptamer may be used to detect hidden sites of
infection and inflammation in animals. NeXstar scientists modified the elastase aptamer to carry a radioactive
compound which would allow it to be visualized by a gamma-ray camera.
When injected into a rat, the aptamer was attracted to the white blood cells at the site of inflammation in the
body, producing an image of the "hot spot," or inflammatory region. This technology has the potential to provide
faster imaging at hidden sites of infection or inflammation.
"These results confirm our expectations of the in vivo activity of our aptamers as demonstrated in these
animals studies, as well as in other animals studies with our first several aptamers that are currently under
development," said Larry M. Gold, Ph.D., chairman and chief scientific officer of NeXstar Pharmaceuticals. "As
a result, we continue to see strong evidence to support the power of the SELEX process as a rapid drug
discovery engine."
Aptamers are compounds that have been identified from libraries of trillions of candidates by the SELEX
process. These molecules can bind tightly and specifically to many types of targets, including disease-causing
molecules such as elastase. Because the SELEX process is carried out in test tubes, other types of chemicals
can be combined into the SELEX libraries to produce completely new classes of a pharmaceutical products.
In the case of the elastase inhibitor, the aptamer was blended with a small molecule. This combination is
capable of forming a chemical bond that inactivates the elastase. DNA, by itself, is not capable of forming such a
bond. However, the combination of the aptamer and small molecule reacts much faster with elastase than the
small molecule alone, creating the most potent inhibitor of elastase produced by the pharmaceutical industry to
date.
NeXstar Pharmaceuticals Inc. is a commercial pharmaceutical company engaged in the discovery,
development, manufacturing and marketing of products to treat serious and life-threatening illnesses. The
company currently markets two drugs in the United States and around the world, AmBisome and DaunoXome.
Based in Boulder, Colo., NeXstar Pharmaceuticals maintains additional research, development and
manufacturing facilities in San Dimas, Calif., and marketing subsidiaries worldwide.
Note to Media: This release can be obtained from our Internet homepage at
nexstar.com. <<

mz



To: Biomaven who wrote (237)11/17/1997 10:43:00 PM
From: Miljenko Zuanic  Read Replies (1) | Respond to of 328
 
Peter:

I guess NXTR followers disappeared after last deep.

Yesterday I was wandering what triggered one point END-DAY rise for NXTR. I guess today news is answers:

biz.yahoo.com

I WISH THAT ONE DAY I WILL BE ABLE TO READ COMPANIES, NOT ONLY NXTR- ANY AND EVERY COMPANY, PRESS ANNOUNCEMENT WHICH CAN CLEARLY STATED WHAT IS GOING ON!

In this MiKasome UTI's PII trials what will first group receive: Amikacin (I guess not) or MiKasome. What will be dose of MiKasome in second group? I guess 70 mg/kg or equal to total dose in first group. I guess this is open label randomized comparative trials! Will NXTR tried different single MiKasome dose?

GOD help me on my criticism, but this people have M.D. , PhD,... and they do not know how to compose few sentences for news announcement. What we are, dome ones!

This is actually very good news. FDA allowed second IND application and clinicals to start from PII based an excellent safety data from PI trials on AIDS patients. Complicated UTI is serious disease and amikacin has kidney toxicity. MiKasome does not have this side effects problems which is big plus. Hope MiKasome will show efficiency, as it has show in some AIDS patients.

mz