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Author Topic: Pa-457  (Read 1015 times)

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Offline john

  • Member
  • Posts: 21
Pa-457
« on: August 28, 2006, 03:13:52 PM »
Just Curious, I have been reading all the new conference information and I cant seem to find any news on pa 457. Anyone have any info on this?
Jon be good

Offline Eldon

  • Member
  • Posts: 2,664
Re: Pa-457
« Reply #1 on: August 28, 2006, 06:31:42 PM »
Hello John, it is Eldon. I was doing a little research today and I found out about some information on PA-457.

The Company's lead compound, bevirimat (PA-457), is the first in the new class of HIV drugs called Maturation Inhibitors that specifically block a late step in processing of the HIV Gag protein. Following bevirimat treatment, virus particles released from HIV-infected cells are non-infectious and virus replication is terminated. This antiviral target is unique to Panacos and the Company is building a strong intellectual property position around its ground-breaking discovery.

For more information you can go to: http://www.panacos.com/product_2.htm.

This should be of good help for you.

Have the BEST Day.


Offline J.R.E.

  • Member
  • Posts: 7,288
  • Joined Dec-2003 Living positive, since 1985.
Re: Pa-457
« Reply #2 on: August 29, 2006, 07:48:27 PM »
Hello John,

Heres a link in addition to the link that Eldon gave you. I believe the information is about the same ;

http://www.newsalerts.com/news/article/drug-blocks-the-spread-of-hiv-.html:health19:750849

Story below ;

Drug 'blocks the spread of HIV' 
 
The drug interferes with a process which helps HIV infect new cells
Scientists are developing a new way of tackling HIV, using a drug which blocks the assembly of the virus.
US researchers, working with Panacos Pharmaceuticals which makes the drug, found it was effective in a small-scale human trial, New Scientist reports.

PA-457 will now be given in combination with other HIV drugs to people whose existing treatment is failing.

Experts said there was a lot of interest in PA-457, but warned it would not be available for some years.

 There is a lot of interest in this product

Keith Alcorn, National Aids Manual (NAM)

The demand for new forms of medication is great.

About 80% of people being treated for HIV show resistance to one or more of their drugs, a spokesman for Panacos said.

There are several existing ways of tackling HIV.

Many medications work by blocking reverse transcriptase, an enzyme which enables HIV to replicate within a cell.

Others disable protease, which helps to assemble the virus into particles to infect other cells.

"Shield 'disabled"

PA- 457, a derivative of betulinic acid, is a cheap by-product of the paper industry and one of a new class of drugs called maturation inhibitors.

It works by interfering with the production of the capsid protein, a conical "shield" which protects the genetic material of HIV inside it.

The research, also published in the Journal of Virology, showed PA-457 binds to the protein at a key stage of its development, meaning it forms instead into a "leaky sphere" which leaves the genetic material exposed.

Without its protective cone, HIV is defective and unable to infect other human cells.

Previous lab work on human cells infected with HIV by the University of Oklahoma and Panacos researchers has shown that PA-457 is effective on strains of the virus which are resistant to other anti-HIV drugs.

The small human trial of the drug last year reported that, given on its own, it rapidly clears most HIV from the blood.

New class

Further research, due to begin this month, will test how PA-457 works in combination with other drugs. Combination treatments are most effective because of the high levels of drug resistance seen in HIV treatment.

Forty-eight patients whose current treatment regimes are failing will either be given PA-457 or a dummy version along with their existing medication.

Even if results are positive, much larger studies will be needed to test the drug's effectiveness on more people and to see what combination of treatments works best.

It will be at least 2009 before the drug is on the market, the researchers warn.

HIV researcher Charles Boucher, of the University Hospital at Utrecht in the Netherlands, said: "It's a truly novel new class of drugs, and I really support their development.

"If [PA-457] turns out to be non-toxic, easy to use and not to select for resistance, it will find good use."

Keith Alcorn, senior editor at National Aids Manual (NAM), said: "This is a new class of drugs, and there is a lot of interest in this product.

"It stops the virus by interfering in one of the final stages in its assembly and stops it from 'budding out' from the wall of a cell."

He said much more research would be needed to show how safe and effective the drug was.






Ray
 
Current Meds ; Viramune, Epzicom, 40mg of simvastatin, 25 mg of Hydrochlorothiazide.
Metoprolol tartrate 25mg



http://forums.poz.com/index.php?topic=40802.0

http://forums.poz.com/index.php?topic=45159.0

http://forums.poz.com/index.php?topic=39722.msg495621;topicseen#msg495621

http://forums.poz.com/index.php?topic=46806.0

http://forums.poz.com/index.php?topic=39414.msg491701#msg491701


Diagnosed positive in 1985,.. In October of 2003, My t-cell count was 16, Viral load was over 500,000, Percentage at that time was 5%. I started on  HAART on October 24th, 2003.

 As of 12/10/14,  t-cells are at 350,  Previous 8/25/14--- 402/ Viral load remains <40

 Current % is at 13% / Previous 8/25/14 11%

  
 63 years young.

 


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