|
Top Eleven Tips for Dealing with Multi-Drug-Resistant HIV
By Gary R. Cohan, M.D., F.A.C.P.
Rates of HIV drug resistance
have been rising sharply in recent years. This is not
surprising given the number of different HIV medications
that have been available for the past 15 years (20 are FDA-approved
so far). According to a report in the New England Journal
of Medicine, from 1995 to 2000, the percentage of patients
who were resistant to at least one HIV medication quadrupled
from 3.4 percent to over 12.4 percent. Another study
by UC San Diego researcher Dr. Doug Richman showed that of
patients who were taking HIV medications for at least
two years, 78 percent had resistance to one drug and 51 percent
had resistance to multiple drugs. Resistance testing
has become so completely integrated into our standard of
care for HIV that the Oct. 6, 2005 revised DHHS Guidelines
for HIV Treatment stipulates that no patient or provider
should consider making a drug switch from a failing regimen
without first doing resistance testing.
The management of patients with highly drug-resistant HIV,
although daunting, has become a field of intensive medical
research. Our goals are to prevent further immune system
deterioration and keep you from getting sick, to force
the HIV virus into a weakened state, and to (eventually)
establish maximal HIV suppression. The following are my "Top
Eleven" tips for dealing with a highly drug-resistant
HIV virus: ("the Do's and Don'ts"):
- DO NOT panic: This is not a death sentence.
A 2005 British study showed that 97 percent of people
were alive and kicking one year after finding multi-drug-resistant
virus in their systems and 92 percent were still around
after two years. Lots of research is going on and there
are many new drugs in late-stage development to treat
these drug-resistant viruses (see below for examples).
- DO NOT stop your current medications or take
a "drug
holiday": if you do this (probably with the thought
that "this stuff isn't working anyway, so why should
I bother"), the more destructive "wild-type" virus
may emerge and will destroy your immune system very quickly.
You must realize that "resistant" viruses are
actually not 100 percent resistant to your medications.
The medicines you are now taking - what we now call a "holding
regimen" -- are forcing your virus to mutate into
a type of HIV that reproduces at a much slower rate. In
effect, even this "failing regimen" works for
longer than you would expect because the mutated HIV is
a weaker virus and has difficulty harming your T cells.
- DO get a drug-resistance test: resistance testing
of your personal strain of HIV virus by a reputable
laboratory can make a world of difference in picking
the right new drugs. These tests must be done while
you are still taking your medications (or within 4
weeks of stopping them). "Genotype" tests
indicate which genetic mutations your virus has developed,
while "phenotype" tests determine how well
specific anti-HIV drugs actually suppress your virus. An
excellent test that combines both of these technologies
(and thus provides the most information about your personal
virus) is called a "Phenosense-GT." This is the
test that I order most often for my drug-resistant patients.
- DO consider the results from all previous resistance
tests: since HIV resistance mutations are "archived" (like
old books in the basement of a library) and never really
go away, you should make sure that your doctor reviews
all of your previous resistance tests to guide new drug
selection. Even though certain mutations may seem to disappear
on a new resistance test, they probably are still lurking
around (in hard-to-detect quantities) and might sabotage
a new drug regimen if not taken into consideration.
- DO keep 3TC (lamivudine, Epivir) in your "failing
regimen" even if tests indicate you are "resistant" to
it (with the M184V mutation) since 3TC has been proven
to do two very important things -- it makes your HIV reproduce
more slowly and it tends to make certain other HIV drugs
work much better. Conversely, if you are failing NNRTI
drugs like Viramune or Sustiva, you should stop them completely
since these drugs do not help a failing regimen, may cause
resistance to new drugs in this class and may just add
cost and toxicity to the picture.
- Do NOT add a single new drug to a failing
regimen -- adding the latest FDA- approved drug to
a drug-resistant regimen is doomed to failure since
three working (non-resistant) drugs are usually required
to suppress your virus. Don't succumb to the temptation
to waste an exciting new drug when no effective companion
drugs are available.
- Do NOT start taking lots of over-hyped, unapproved "alternative" treatments
or supplements: these usually do nothing good for your
immune system, can interfere with the effectiveness
of your current antivirals and, most ominously, they
may cause liver, kidney, or other organ damage.
- DO have your doctor monitor your immune status
closely: make sure that you don't go for more than
12 weeks without your doctor checking your T cells
and viral load. People with HIV-resistant virus are
sometimes under the impression that nothing can be
done for them and stay away from medical monitoring
for long periods of time. Unfortunately, doing so risks
missing a major T cell drop and other preventable HIV-related
complications.
- DO consider intensifying your current regimen
with another protease inhibitor and/or boosting the
levels of your current drugs with small doses of ritonavir.
- DO consider trying a whole new class or generation
of drugs: there are many newer-generation versions of
your standard medications (proteases, nucleoside RTI's
and non-nucleoside RTI's) that may work against highly
drug-resistant viruses (e.g. the new NNRTI's like capravirine
and TMC-125, or the new PI's like tipranavir and TMC-114).
Other exciting new classes of drugs block HIV's ability
to attach to your T cells like the fusion inhibitors
T-20, (Fuzeon) as well as the newer experimental CCR5-inhibitors
and CXCR4-inhibitors. Make sure to team these new drugs
up with other non-resistant drugs per your genotype
results.
- DO consider waiting until three new, non-resistant
antivirals are available. If your T cells are stable
and your health is good, you should make no changes
until you have a whole new drug regimen at your disposal
(either via FDA-approved drugs or through a clinical
research trial). In most cases of HIV drug resistance,
patience truly is a virtue.
You can learn more about the latest in HIV treatment at
the following Web site: aidsinfo.nih.gov/guidelines/adult/AA_100605.pdf.
Gary R. Cohan, M.D., F.A.C.P. is an HIV specialist. To
contact Dr. Cohan, call (310) 657-6900, or via www.doctorcohan.com.
Fighting the Global War Against AIDS
By Michael Weinstein
As 2005 comes to a close, there is a great deal to be
encouraged about in the global fight against AIDS. By year's
end, one million people in the world will be treated for
HIV. In 2001, when AIDS Healthcare Foundation began its
treatment programs in Africa for a couple of hundred patients,
it seemed like a faint hope that treatment would be available
to the many, not just the few. In fact, when I think back
to 1996 when the drug cocktail was discovered, activists
were unsure that the U.S. government would cover everyone
who needed the drugs.
While there is hope, globally we are still losing the war
against AIDS. Three times as many people die of AIDS yearly
as are being treated. Only five percent of the people who
need treatment in the world are receiving it. Most people
who are HIV-positive don't know it. Seven million people
become infected every year.
If you look at what it would take to win this war, we come
up lacking in every area. If we were truly approaching
the war against AIDS as a war, things would look very different.
Funding for global AIDS is chaotic -- each funding
source has different rules and requirements. The U.S. government
wastes hundreds of millions buying more expensive name
brand drugs when excellent generics are available. Tens
of millions of dollars intended to save lives in the developing
world never leaves the Washington beltway, absorbed by
contractors and government bureaucrats. Developing world
governments are rife with corruption. Many technical issues
like lab testing in rural settings, shortages of doctors
and nurses and how to transport patients to clinics from
distant sites are not being addressed.
Logically we should be taking the technology we have learned
in coping with AIDS in the US and Europe and transferring
that to the developing world. But instead of recognizing
that community organizations have been the backbone of
the AIDS response here and should lead the effort abroad,
the U.S. is relying on academic institutions with no experience
and little motivation. Non-governmental organizations cannot
be so easily controlled and are therefore an inherent threat-whether
it's at the Los Angeles County level or at the country
level in a place like China.
The world is beginning to understand the importance of
global health. The world is shrinking. As more and more
747s crisscross the world, everyone is at risk, whether
from avian flu, HIV, West Nile virus or a microbe that
hasn't been discovered yet. Global health is one of our
biggest challenges and our greatest opportunities. And
AIDS now takes its place as part of a worldwide public
health movement.
AHF is now saving more than 10,000 lives at 21 clinics
in the developing world from Mexico to India, plus providing
technical assistance in a total of 13 countries across
the globe. We are so grateful to have this opportunity.
But, we would like to be doing so much more. As of yet
we have not received any direct US government funding and
little recognition from global institutions.
The good news is that a new vast constituency is developing
at all levels. Celebrities, politicians, students, activists,
business people the world over are getting involved and
vast sums of money are beginning to be devoted to this
awesome task.
If we regard the public health as if it were our own health,
which it truly is, then we have a very good chance of winning
these battles. Let us not look back years from now on global
AIDS as we do about the holocaust, the genocide in Rwanda,
or ethnic cleansing in Bosnia and wonder why the world
stood by and did little to stop it.
We have the technical knowledge to stop AIDS the only question
is whether we have the will.
For those of us involved in the global battle against AIDS,
we do not look at it as a burden but as a magnificent adventure
and we need your help. Consider how you can contribute.
Is there any greater gift than having the opportunity to
save a life?
Michael Weinstein is founder and president of AIDS Healthcare
Foundation.
Not So Benign Neglect
By Phill Wilson
Last month my friend LeRoy Whitfield died from AIDS. He
was smart, AIDS educated, and connected to the HIV treatment
world. His death is yet another reminder that the AIDS
epidemic is not over for black folks in America. Leroy's
death is a commentary on how complex HIV/AIDS in "black
face" really is.
In post-Hurricane Katrina America, everyone seems obsessed
with whether George Bush cares about black people. Kanye
West thinks he doesn't. Laura Bush thinks he does. After
all, the first lady said, "I live with him. I know
what he believes." Secretary of State Condoleezza
Rice said, "Nobody, especially the president, would
have left people unattended on the basis of race."
Maybe Laura and Condi are right. Maybe W. loves him some
black folk. But who cares? It's the wrong question.
It is a deadly distraction for Americans to worry about
whether the president or his administration likes us. What
matters is, are they competent? Do they hire people based
on their experience and expertise or based on whether they
shared a dorm room with W. when they were in college? Are
they capable, for example, of mounting an immediate and
effective response to a natural disaster that happens to
hit black folk especially hard? In this case, the answer
is resoundingly no! While the jury may be out on the long-term
governmental response to Hurricane Katrina, the verdict
is certainly in on the government's immediate response.
On Thursday evening, Sept. 1 -- three days after Katrina
hit New Orleans -- Anderson Cooper of CNN reported
seeing the body of a black woman on the street being eaten
by rats because she had been lying in the street for 48
hours and there were not enough facilities to pick her
up. Race or class may not have anything to do with the
Katrina relief efforts, but rats do not eat the bodies
of white women in America.
So what do LeRoy and Katrina have to do with each other?
Here are the facts. Dying people were left stranded in
New Orleans after Hurricane Katrina -- and worse. With
guns blazing, the police in Gretna, La., actually forced
hungry, thirsty, and desperate people back into the flooding
city. Most of these people were black.
In 2005, AIDS in America is a black disease. Nearly 1.3
million Americans are living with AIDS today, and about
half of them are black. If that were not enough, 37 percent
of the total AIDS deaths in the United States are black.
Fifty-six percent of the new youth cases and nearly 70
percent of new HIV diagnoses among women are black. And
most horrifying, a new five-city study found 46 percent
of black gay and bisexual men were already infected with
HIV, and two-thirds of them don't know they are infected
and therefore are almost certainly not doing anything about
it.
So what matters is not whether W. loves us or not. What
matters is that he
didn't deliver on Katrina and he's not delivering on HIV/AIDS
in America or any of the other social issues affecting
our lives everyday.
Under George Bush's watch, the number of poor people in
this country has surged by 4.5 million. As columnist Robert
Scheer noted in the Los Angeles Times, there are now 37
million Americans, who are living in poverty. We saw some
of them during the devastation of Katrina.
The poor are those in greatest need for access to health-care,
but the administration has cut funding for federal HIV
prevention programs, and recommended changes in the Ryan
White CARE Act, the primary federal program that provides
care and treatment for people with HIV/AIDS.
Bush also proposed a FY2006 budget that would irrevocably
gut Medicaid, one of the few resources African Americans
living with HIV have been able to turn to for treatment.
This will almost certainly make the already awesome racial
differential in survival rates among people with AIDS grow
even larger.
We can spend all day speculating about whether or not Bush
is racist. Mistake! If you go to a car mechanic who disconnects
your brakes and you are killed in an accident, you are
no more dead if he did it because he didn't "care" about
you than if he was just plain incompetent. Natural disaster
or public health disaster, mechanic or president, we need
someone who will do the job right. Race may matter, but
competency does also.
Phill Wilson is the founder and President of the Black
AIDS Institute
(www.BlackAIDS.org).
|