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DRUG
HOLIDAYS
(PULSE THERAPY-INTERMITTENT THERAPY)
LATEST
NEWS
By
Maggie Fox, Health and Science Correspondent SAN FRANCISCO,
Jan 30 (Reuters) -
He
is known only as the ``Washington patient´´ but a middle-age
government contractor may be the living proof that an unorthodox
approach to treating the AIDS virus may help a few patients
control the infection on their own.
The
patient, who lives in Washington, D.C., volunteered to try the
approach known as intermittent therapy. The idea is to stop
and start the strong cocktails of drugs that control HIV infection
in the hope of eventually training the immune system to control
the virus on its own.
Franco
Lori (see “London Trip” above) of the Research Institute for
Genetic and Human Therapy (RIGHT) in Washington first reported
on his idea a few years ago. He tested three patients, taking
them off their drug regimens until the virus bounced back, then
putting them back on drugs for a while, and repeating the cycle.
In
addition to standard HIV drugs, he used the old cancer drug
hydroxyurea, which shows some action against HIV. One man known
as the ``Berlin patient´´ has now been off his drugs for nearly
three years and shows no virus in his blood at all, although
he still has virus in his lymph nodes.
The
man known as the Washington patient, who does not wish to be
further identified, learned about the Berlin patient soon after
he found he was infected with HIV. ``I had fevers, chills, a
rash on my chest,´´ he said in an interview. ``It was evident
that I was sick, but I thought I had strep throat or flu.''
But his doctors thought it looked like HIV and had him tested.
It was. When he thought back, he realised he had been infected
during a brief, unprotected moment of sex.
"Although it was awful to find I had seroconverted (the
technical term for developing an infection), I caught it early,"
he said. "So I did some research on the Internet."
He also started on drug cocktail therapy. "My philosophy
was to hit it as hard as I could as early as I could,"
he said. But then he read about Lori, and Julianna Lisziewicz
of Georgetown University in Washington and their work with the
'Berlin patient.' "I decided that, hey, I wanted to be
all over this thing," he said. Georgetown University Medical
Centre was just a few blocks away. "I just decided to drop
in on them one day and started talking to them."
They
explained to him their theory that stopping the pills could
'train' the immune system to recognise the virus better, and
eventually help it keep the HIV suppressed on its own. "I
figured if I could have my own body fighting it rather than
these highly toxic drugs, it would be better," he said.
He has now done six cycles of the intermittent therapy. Each
time he stopped, the virus came back at a weaker level. He is
now not taking any drugs and he feels fine. "I think I
may have a cold, but that´s it," the patient said. Lori
and Lisziewicz tried their regime in two other patients in Washington
as well. One patient has had to go back on the drugs but the
'Washington patient' and one other seem to be managing the virus
well.
They
reported their findings in last week's issue of the Lancet medical
journal, and are explaining them this week to a meeting of AIDS
experts in San Francisco. They are the first to admit that their
approach is not for everybody. They got to their patients very
soon after they were infected, before the virus could do much
damage to the immune system, and they carefully monitor when
they take the patients off their drug regimes. “I know I am
taking a chance doing it because my virus is able to come back
up,”the Washington patient said. “But my hope is that their
theory is correct and the immune system will keep this in check.”
He is well aware that he will probably be infected for the rest
of his life, and would just as soon spare his body the toxic
side effects of the drugs.
“If
my immune system can learn this disease and react to it, I think
I am better off than being on the drugs,” he said. He wants
to help in the fight against AIDS. “You want to be a foot soldier
against it ... because it is a nasty virus.''
09:47
01-30-00 Copyright 2000 Reuters Limited.
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