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The
Frontline Beacon

Volume
2 December
2000 Issue
Beth Leffler, Editor
Message from the President
Welcome to the second edition of the Beacon. The President gets to do
the important things like beg for you to subscribe to this or for
others who may not have email. Send a message with the name and
address of the recipient along with $10 for a year subscription to:
Frontline Hepatitis Awareness 2712-1/2 13th Ave S Seattle, WA
09144 OR: ane@frontline-hepatitis-awareness.com
This is how we will be able to continue to make information available
to those without use of the computer and thus pay for postage and
handling costs. Thank You!
Frontline Hepatitis Awareness
2712-1/2 13th Ave. South
Seattle, WA 98144
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ASK JAMIE COLUMN
Jaime Hart-Osborne
Subject: Need Posting of Factors that may indicate
progression of HepC A while back there was a posting of biochemistry lab
results that may be more precise indictor of Hep C
progression/regression than AST or SGOT. One of them I believe was
Bilirubin. Thanks for your help!
Dear Patient in Georgia: ALT and AST
don't tell you much of anything about progression. The only thing is
with cirrhosis, the AST is generally higher than the ALT. Without
cirrhosis, the ALT is higher. Tests of function that are indicators of
progression are the bilirubin, prothrombin time and albumin. These are
true liver 'function' tests; whereas the ALT and AST only tell you that
liver cells are dying and releasing their enzymes, ALT and AST. The
bilirubin tells you how well the cells are excreting bilirubin (the
product of red cell metabolism) into the bile. The protime is a measure
of the time it takes for a prothrombin clot to form. As the liver is the
only organ that makes clotting factors, this is a measure of how well
the liver is doing on making them. The longer the time, the less
clotting factor there is. The same is for albumin. Albumin is the
principal blood protein you own and the liver is the only place that
makes it. Not enough functioning cells, the lower the albumin is.
Hope this helps.
Small Wings a flappin' GA
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| Articles
in the Frontline Beacon are not to be used in place of a doctor's advice.
Please seek expert medical advice in either the natural or allopathic
setting for medical questions, thanks! |
Send in Questions for
"Ask Jaime Column" and Articles for this newsletter! We are also
accepting personal stories that Relate to HCV and related issues. |
AASLD-
American Association for the Study of Liver Diseases October 27-31 2000
Dallas
Reported by Jules Levin
Progress in Developing New HCV Drugs Today's opening sessions had a good
deal of promising information. Several new drugs in development for HCV
were discussed. And new data on a couple of these drugs will be presented
at this meeting over the course of the next few days. In addition there
was a talk today on vaccine development. The speaker presented encouraging
information on the possibility for development of a preventative and a
therapeutic vaccine for HCV. But he cautioned that he didn't expect a drug
until 2006. He suggested that a successful vaccine would have to stimulate
both a CD4 response specific for HCV and a CD8 CTL response. In animals,
that type of response was promising against HCV. The same type of response
appears important to responding to HIV and a vaccine has yet to be
developed. They discussed a naked DNA vaccine and felt that it wouldn't
elicit a potent enough response to be effective against HCV. New
information from studies will be reported here in Dallas on Pegylated
Interferon. On Monday Schering Plough will report new data on Peg Intron
in combination with ribivarin. Roche will be presenting new data on
Pegaysis. New data on responses from African Americans and Hispanics will
be reported here. Acutely infected humans who clear HCV characteristically
produce a vigorous, polyclonal, and multispecific CTL (cytotoxic
lymphocyte) response. In contrast, those that progress to chronic
infection fail to display HCV specific CTL or develop a narrowly focused T
cell response. Obviously, most people are unable to mount an effective
response upon infection because 80-85% develop chronic infection. HCV
Protease Although the structure of the HCV protease has been
characterized, this structure seems to be difficult to create a drug for.
Johnson Lau, formerly with Schering Plough and now with ICN, is developing
a new ribivarin type drug. In fact, at least 2 new and more effective
ribivarin type drugs are in development. But Lau described why it is
difficult to develop a protease inhibitor for HCV. There are multiple
cavities into which a protease inhibitor would go, therefore Lau says a
large molecule would be necessary to accomplish this. However, you need a
small molecule for oral absorption. It may be possible to develop a drug
administered by subcutaneous injection but obviously oral administration
is preferred. In addition, if you put HCV into a cell culture with a drug
to see if that drug inhibits replication, HCV disappears. This is unlike
HIV where you can put HIV & a drug into a cell culture and see if
replication is inhibited. This makes it difficult to develop drugs for HCV
and to understand a potential protease inhibitor's resistance profile. But
in today's lecture series it was said that several cell culture systems
are being developed and researchers seemed encouraged about this
prospect.. Ribozyme LY466700 is a ribozyme currently in human studies. |
A
ribozyme attaches itself to the virus to prevent replication. Larry Blatt
from Ribozyme Pharmacueticals discussed ongoing research in humans. He
said the drug showed to be potent anti-HCV in cell culture and was
synergistic with interferon. The drug will be administered by once daily
subcutaneous injections. Results from a single-dose dose- escalation and
safety study will be presented in a poster in the next few days. Blatt
gave a preliminary report today. It's a 28-day study using low doses.
Three patients showed transient viral load reductions of about 1 log.
Higher doses will be studied in combination with interferon and later with
IFN+ribivarin. Since the study being presented in Dallas was not designed
to chartacterize antiviral efficacy Blatt said he can't be sure whether
the viral load reduction is due to the drug or not. He said it was well
tolerated. HCV Polymerase Polymerase is part of HCV and is involved in the
viral reproduction process. Blatt described today that a few companies
have polymerase inhibitors in development. One of these products is in
phase 1 studies in the UK. A few nucleoside analogues are being considered
for development to inhibit polymerase. Antisense Antisense can inhibit
viral replication. Gary Davis described today that major potential
obstacles with antisense technologies have included delivery to the cell
target. But an antisense product is in phase 1/2 studies including in HCV
infected. VX-497 This is a ribivarin type drug being developed by Vertex
Pharma and its in phase 1/2 studies. Vertex has said it should be more
tolerable, safer and more potent than ribivarin. Maximine This is an
immune based therapy for which 24 week data has been previously reported.
It was studied at various doses in combination with interferon. Its
administered by subcutaneous injection. The 24-week data is available on
the NATAP web site but 48 week data will be presented in Dallas. Still,
the study was not well designed enough to get a firm grip of the benefit
Maximine gives. Although they previously reported 69% viral response,
about 50% of the patients were genotype 2/3 and it was hard to tell how
much of the benefit was from interferon or Maximine. Nonetheless, Roche
has rights to study Maximine in combination with Pegasys. Il-10 This is an
inhibitory cytokine that has anti-inflammatory, antifibrotic, and immune
suppressor effects. Gary Davis said today that an effect might be
anticipated because patients with severe chronic HCV have lower IL-10
production while those with milder disease have higher levels of Il-10. A
pilot study of daily recombinant Il-10 normalized ALT and reduced hetic
inflammation on liver biopsy in 19 of 22 chronic HCV patients. This was
previously reported And fibrosis decreased dramatically in 14/22. But no
change in HCV viral load was seen. A large trial is underway. Alfa
Thymosin This immune modulator has been around a while and I thought it
was written off. Davis said study results have been inconsistent but felt
the drug may have promise. He said a large study is planned. The drug is
approved in I think Japan. |
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Frontline is compiling a list of Support groups
across the US to be on the web page: Send any current support info to: Bruce@frontline-hepatitis-awareness.com |
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UPCOMING EVENTS
'Dancing With the Dragon'
A Benefit for HCV in Seattle January 27, 2001
8-Midnight
'The Duffy Bishop Band"
'Jr. Cadillac'
Dave Conant & the D-Rangers
Frontline Hepatitis Awareness is proud to announce
the first of a series of R&R and Blues Concerts to Benefit HCV/HIV
Coinfection. HCV Testing (free for high risk Join us for a night of
Dancing, persons) Silent Auctions and Food & Refreshments
Contact Info and Pricing:
In WA State:
206-328-5381 & 206-732-0311
Eastern WA 509-545-6338
In OR State:
Signs Today
4811SE Jennings
Milwauki, OR
503-353-8808 Advance $25 (before 11/30)
At the Door $30
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Liver Urgency Scale to Advance to UNOS
Board for Consideration
RICHMOND, Va., Oct. 23 /PRNewswire/
A proposed improved, objective scale to
classify medical urgency of patients needing liver transplants will be
considered for adoption by the UNOS Board of Directors at its meeting Nov.
16 and 17 in Washington, D.C. The UNOS Liver and Intestinal Organ
Transplantation Committee, meeting October 12 in Chicago, recommended
approval of the proposed policy after consideration of written public
comments and feedback offered at a public forum held Sept. 28 in Irving,
Texas. The proposed policy refinement would create a continuous scale to
rank liver patients based on medical test results that are significantly
associated with short-term death without a liver transplant. The scale
would be more refined than the current medical urgency codes used in liver
allocation, and the application of a continuous scale would de-emphasize
the need to apply a patient's waiting time to determine priority for liver
offers. The proposed scale would not affect the current UNOS Status 1
designation, which addresses the needs of extremely urgent patients with
acute liver failure. After the UNOS Board of Directors considers the
proposal, it will submit its recommendations to the U.S. Department of
Health and Human Services for consideration under federal regulation for
the U.S. organ transplant system. For more than 15 years, UNOS, a
nonprofit charitable organization, has effectively maintained the nation's
organ transplant waiting list and brought together medical professionals,
transplant recipients and donor families to develop organ allocation
policy under contract with the Health Resources and Services
Administration of the U.S. Department of Health and Human Services.
SOURCE: United Network for Organ Sharing CO: United Network for Organ
Sharing; U.S. Department of Health and Human Services |
High Hepatitis C Virus Levels: Patients Clear
Virus More Slowly, More Likely to Relapse
PHILADELPHIA, July 22 /PRNewswire----Sustained responders to
anti-HCV treatment clear virus more slowly if they start out with
higher virus levels. Researchers reported at the Digestive Disease
Week conference that the pre-treatment viral concentration closely
correlates with the rate that sustained responders clear the virus
from their bodies. And a higher starting viral load increases the
likelihood of a relapse after treatment. Researchers categorized 232
previously untreated patients according to their "baseline"
viral concentrations into four groups. All patients received 9
micrograms of consensus interferon (Infergen) three times a week for
24 weeks, and then were observed for another 24 weeks after treatment.
The percent of patients who responded (undetectable serum HCV RNA
values) by week 12 was 71%, 53%, 34%, and 34%, from the lowest to the
highest viral concentrations, respectively. More patients with lower
baseline concentrations responded early compared to patients with the
highest starting concentrations. These findings may help predict early
in treatment who will benefit from therapy, says lead researcher F.
Blaine Hollinger, M.D., professor of medicine, virology, and
epidemiology at Baylor College of Medicine, Houston, Texas.
"Patients want to know what their probability of success is, and
we've looked at a lot of factors: the concentration of virus in the
blood stream, whether or not they have cirrhosis, what their [viral]
genotype is," Dr. Hollinger says. "Those that have a very
low concentration of virus will lose their virus much more quickly and
are more likely to have a sustained response than those who have a
higher baseline concentration." Dr. Hollinger says that patients
with the highest concentrations of virus do respond to treatment, but
not as rapidly or as completely as patients with a low baseline level.
For many of these patients, their viral level declines during therapy,
but then increases after treatment stops. "This suggests that
what we really need to do is treat them at higher
concentrations," he says, "in this case 15 micrograms of the
consensus interferon or 5 million units of Intron or Roferon, that
perhaps you will pull some of the non responders into the sustained
responder [group]."
SOURCE Patients Newswire CO: Patients Newswire; Baylor
College of Medicine ST: Pennsylvania, Texas
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Note from the
Editor:
In the last couple months we are pleased with the
support that all of you have given us. Without you, there would be no
Frontline. We are here for you and others who suffer with HCV. When I
was diagnosed I promised that no one would ever be alone with this
silent epidemic. All of the Officer's and State Representatives feel
the same way. That is why we are Frontline.
To help all of you to live and deal with Hepatitis C. We have
dedicated ourselves to the promotion of education, testing and
awareness. We will find a cure. That is our hope and that is our
promise. You can e-mail any of the Officers or State Representatives
at www.frontline-hepatitis-awareness.com
under "Who We Are".
Beth Leffler,
Editor and Pennsylvania State Representative
Beth@Frontline-Hepatitis-Awareness.com
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