[sci.med.aids] Something from GayNet re:HIV vaccine.

mwfolsom%hydra.unm.edu@ariel.unm.edu (Mike Folsom) (02/08/91)

I saw this on GayNet and wondered if anyone knew anything about this 
vaccine or the company that's producing it.

Mike 

********************************************************************************
Forwarded message:
> 
> ----------------------------Original message----------------------------
> 
> Date:         Wed, 06 Feb 91 10:44:13 HNE
> Subject:      HIV vaccin...
> From: An Anonymous Sender
> 
> * * * PLEASE POST ANONYMOUSLY * * *
> I'm posting this anonymously, since I want to avoid a tide of questions.
> (I'm not allow to reveal results, And the researchers
> don't know I'm posting this.)
> 
> HIV vaccin (VAXSYN) is also under trial here in Montreal. Phase I study
> was started last may. A Phase II study (placebo) started a few weeks ago.
> Subjects are HIV+ with CD4 count > 500.
> In phase I two groups of 10 patients received 4 doses
> over a 4 months period.
> In overall,
> after 6 months, 16 (out of 20) subjects show increase in CD4 count,
> decrease in CD8, higher mitogen response and increase in anti-HIV
> specific antibodies. In overall results appear very positive.
> The results should be submit for publication this month.
> So, all this should be public soon.
> * * * PLEASE POST ANONYMOUSLY * * *
> 
> ----------------------------------------------------------
*******************************************************************************
                                                     
--
Michael W. Folsom          (mwfolsom@unmvm) -or- (mwfolsom@unmvm.unm.edu)     
Dept. of Biology // UNM               (mwfolsom@hydra.unm.edu)       
Albuquerque, NM 87131        505-277-3859 office -or- 505-277-3505 lab
*******************************************************************************

dgreen@uunet.UU.NET (02/11/91)

mwfolsom%hydra.unm.edu@ariel.unm.edu (Mike Folsom) writes:

|> I saw this on GayNet and wondered if anyone knew anything about this 
|> vaccine or the company that's producing it.

Anonymous said:

|> > HIV vaccin (VAXSYN) is also under trial in Montreal. Phase I study
|> > was started last may. A Phase II study (placebo) started a few weeks ago.
|> > Subjects are HIV+ with CD4 count > 500.
|> > In phase I two groups of 10 patients received 4 doses
|> > over a 4 months period.
|> > In overall,
|> > after 6 months, 16 (out of 20) subjects show increase in CD4 count,
|> > decrease in CD8, higher mitogen response and increase in anti-HIV
|> > specific antibodies. In overall results appear very positive.
|> > The results should be submit for publication this month.
|> > So, all this should be public soon.

I believe VAXSYN is produced by MicroGeneSys.  It is a synthetic gp160
protein (gp160 appears on the HIV coat).  I was part of a group of
HIV- guinea pigs for it.  No adverse effects, except for the typical
vaccine thing: a sore arm.  Oh yeah, and a minor sociological
adverse effect: I produce misleadingly positive HIV antibody tests now.
Of course, this is not a problem for HIV infected individuals.

It's quite exciting to hear this good news about the effects of VAXSYN
on HIV+ individuals!  (Weird twist on the role of a vaccine, eh?)
Thanks, anonymous, for keeping us up to date!

You can always find out more about this stuff by calling the NIH
AIDS Trial number:  1-800-TRIALSA.  I believe the USA is running its
own set of HIV+ VAXSYN trials.

Regards,
____
\  /Dan Greening	IBM T.J.Watson Research Center	 NY (914) 784-7861
 \/ dgreen@ibm.com	Yorktown Heights, NY 10598-0704	 CA (213) 825-2266

sys0002@dircon.co.uk (Julian Hayward) (02/12/91)

bywater!arnor!dgreen@uunet.UU.NET replies to:

>|> > HIV vaccin (VAXSYN) is also under trial in Montreal. Phase I study
>|> > was started last may. A Phase II study (placebo) started a few weeks ago.
>... I was part of a group of
>HIV- guinea pigs for it.  No adverse effects, except for the typical
>vaccine thing: a sore arm.  Oh yeah, and a minor sociological
>adverse effect: I produce misleadingly positive HIV antibody tests now.
>Of course, this is not a problem for HIV infected individuals.

>Regards,
>____
>\  /Dan Greening	IBM T.J.Watson Research Center	 NY (914) 784-7861
> \/ dgreen@ibm.com	Yorktown Heights, NY 10598-0704	 CA (213) 825-2266

Dan, 
Out of interest, how can they tell if the treatment is successful when
it causes HIV- individuals like yourself to show HIV+? Is there a further
test which can identify the difference from real HIV infected cells?
 
I'd imagine you'd have a difficult time explaining this to an insurance
company, perhaps they are more intelligent in the US/Canada.
 
Julian
-- 
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()_()   JULES                          |  sys0002@dircon.co.uk
 (_)    a.k.a. Julian Hayward          |  
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-- 
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()_()   JULES                          |  sys0002@dircon.co.uk
 (_)    a.k.a. Julian Hayward          |  
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rpetsche@mrg.PHYS.CWRU.Edu (rolfe g petschek) (02/13/91)

In article <1991Feb12.142731.29249@cs.ucla.edu> sys0002@dircon.co.uk (Julian Hayward) writes:
>bywater!arnor!dgreen@uunet.UU.NET replies to:
>
>
>Out of interest, how can they tell if the treatment is successful when
>it causes HIV- individuals like yourself to show HIV+? Is there a further
>test which can identify the difference from real HIV infected cells?

There are such tests but they are harder than the usual anti-body
test for HIV.  Probably the most accurate (though it is not without
dispute) is the polymerase chain reaction which will test if there is
RNA with the pattern of [part of] the genetic code of the virus.  This
is how the presence of HIV in a British sailor who died in the 1950's
was detected.  The possible difficulty with this is that it does not
demonstrate infection with the virus - only the presence of the virus
and there is some dispute therefore that it correctly indicates the time
in which a person can have an active HIV infection but not be
sero-positive for HIV antibodies.
--
Rolfe G. Petschek			Petschek@cwru.bitnet
Associate Professor of Physics		rgp@po.cwru.edu
Case Western Reserve University		(216)368-4035 
Cleveland Oh 44106-2623

dgreen@uunet.UU.NET (02/14/91)

sys0002@dircon.co.uk (Julian Hayward) writes:
|> bywater!arnor!dgreen@uunet.UU.NET replies to:
|> 
|> >|> > HIV vaccin (VAXSYN) is also under trial in Montreal.  ...
|> >... I was part of a group of
|> >HIV- guinea pigs for it.  No adverse effects, except for the typical
|> >vaccine thing: a sore arm.  Oh yeah, and a minor sociological
|> >adverse effect: I produce misleadingly positive HIV antibody tests now.
|> >Of course, this is not a problem for HIV infected individuals.

|> Out of interest, how can they tell if the treatment is successful when
|> it causes HIV- individuals like yourself to show HIV+? Is there a further
|> test which can identify the difference from real HIV infected cells?
|> I'd imagine you'd have a difficult time explaining this to an insurance
|> company, perhaps they are more intelligent in the US/Canada.

An experienced Western Blot interpreter can tell the difference between
an infected an uninfected HIV antibody+ result (there are several 
antibody bands missing on uninfected individuals).  However, the three
bands that show up on my Western Blot are pretty strong and I show a
strongly positive Elisa, so who knows what happens if an idiotic 
interpreter comes across it?

As for insurance, I haven't been in a situation to test this problem
(until recently HIV Ab tests were illegal for insurance purposes--they
may still be, but I think I remember hearing about some contrary
judicial decision in California.)

____
\  /Dan Greening	IBM T.J.Watson Research Center	 NY (914) 784-7861
 \/ dgreen@ibm.com	Yorktown Heights, NY 10598-0704	 CA (213) 825-2266