Imagine a World Without AIDS—HIV Vaccine Trials: Making the
Dream a Reality
Participants' Statements
Tuesday, December 5, 2000
- Mai
T. Pham, International Youth Leadership Council, Advocates
for Youth
- Marie-Emmanuelle
(Emmie) Henry, International Youth Leadership
Council, Advocates for Youth
- J.
Lawrence Miller, Ph.D., Executive Director, Black
Educational AIDS Project and AVAC Board
Member
- Debra
L. Hauser, M.P.H., Vice President, Advocates
for Youth
Mai T. Pham
International
Youth Leadership Council, Advocates for Youth
As a representative
of the one billion young people worldwide, I am asking
educators, policy makers, and parents to recognize that
HIV/AIDS is devastating my generation—my peers are dying.
HIV/AIDS
does not discriminate by race, gender, or age. Of the 5.3 million people
newly infected with HIV, one-half are adolescents. Internationally,
about five young people are infected with HIV every minute. In the
5 minutes since this press conference began, in the time it took for
introductions to be made and statement begun, 25 young people have
become infected with HIV. Sadly, most people living with HIV/AIDS are
in developing countries, where they receive little or no treatment,
and they will die.
As a resident
of the United States with fairly traditional Asian parents,
discussions about HIV/AIDS were not had with my parents.
I took the initiative
to learn about the dangers of HIV/AIDS. As a local college
student in Washington DC, I have access to the information
and services to
protect myself from HIV/AIDS. Two summers ago I went to
Vietnam to visit with my extended family. I have four cousins—ages
19, 17, 16, and 11, but would not be shocked to learn that they have
never even
heard of HIV. The silence around this epidemic is staggering.
A study done in Indonesia showed that only 32% of youth
had even heard of AIDS.
This lack of information is killing us. I am frightened
that my cousins, and many young people worldwide, are being
kept in the dark about a
disease that threatens their health and their lives.
Internationally,
there is a general lack of education, resources, and care for young
people who are vulnerable to or affected by HIV/AIDS. Young people
are truly the heart of every nation, but they are denied the right
to live their lives because they don't know. There is still too much
misinformation about HIV/AIDS. Studies in Brazil and India show that
despite a high level of awareness about of AIDS, youth are misinformed
about the modes of HIV transmission, believing that HIV can be transmitted
via casual contact, including sharing utensils and wearing the clothes
of an infected person. In Columbia and Nigeria, many youth believe
herbal medicines or soda and lime concoctions can cure sexually transmitted
diseases.
There
is also the problem of cultural limitations. In many cultures,
girls are expected to be passive when it comes to making
sexual decisions. In a study in Malawi, 57% of adolescent girls stated
that
it was easier
to risk pregnancy and disease than to ask a boy to use
a condom. Without the power to ask their partner to use
a condom, or to make the choice
to not have sex, young girls are at especially high risk
for HIV infection. In some cultures boys are expected to
prove their "manhood" by
having sex at an extremely young age with prostitutes,
or with as many partners as possible. These young men know
nothing of the risks they
are facing. There is simply a general lack of information
about HIV/AIDS to allow young people to protect themselves.
There is an urgent need
for comprehensive sexuality education and services internationally.
The United
States can and must do more to combat HIV/AIDS worldwide.
When policy-makers speak of the "future generations" and the "young people
of tomorrow", they must recognize that they can not just isolate
America's youth, but they must include young people everywhere.
HIV does not stop at country borders, and neither do today's
youth. Young
people worldwide need more money, more access to safe,
confidential services, and more information to protect
them from HIV/AIDS. As one
young person among the one billion internationally, I ask
you to recognize that HIV/AIDS is still a devastating international
problem. HIV/AIDS
is threatening the vitality of today's young people, the
chances of tomorrow's youth, and the possibilities of the
future international community. I am here today because I have made
the choice
not to let
HIV/AIDS overshadow our future. I ask you to make the same
choice.
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Marie-Emmanuelle
(Emmie) Henry
International
Youth Leadership Council, Advocates for Youth
The threat
of AIDS in America is real. Future leaders are dying
by the thousands. Advances in HIV/AIDS research means that
people with HIV are living
longer, but AIDS treatment does not equal HIV prevention.
Every hour in the U.S., two young people contract HIV.
AIDS is not over, and if we act like it is, it never
will be. While we wait for
science to produce a solution to the HIV epidemic, let's
not forget to use the most powerful HIV/AIDS prevention
tool that we have at our
disposal right now—education.
I want
to share a little story with you about a family called the Davidson's.
The Davidson's just purchased a new home with a pool in the backyard.
Mr. and Mrs. Davidson work full time and they are nervous that their
two kids, neither of whom can swim, might come home from school, decide
to play in the pool, and drown. So the Davidson's talk to the kids
about the dangers of drowning and forbid them to go swimming. They
even put up a locked fence to keep the kids out. This strategy works
for a while as both Bob and Shelly are so scared of drowning that they
stay out of the pool. As time goes by, fear turns into intrigue, and
intrigue becomes curiosity. Every day Bob and Shelly are confronted
with images of people swimming on TV as they watch shows like Baywatch.
At school their friends talk about all of the different pool parties
they've been to and how much fun they had. One day the kids decide
to hop over the fence and go swimming. Sadly, Mr. and Mrs. Davidson's
worst fears come true and both Bob and Shelly drown. The moral of the
story: if you can't keep them out of the pool, you had better make
sure they know how to swim.
When I
talk about fences and pools in this day and age, this hypothetical
story seems far-fetched. What if I changed a few of the variables?
What if instead of the dangers of swimming, we were talking about the
risks associated with having sex? What if instead of TV shows about
swimming, Bob and Shelly were watching Sex and the City, the $treet,
or G-string Divas? What if instead of talking about drowning,
the Davidson's story talked about contracting a sexually transmitted
disease like HIV/AIDS? What if I changed a few of the variables and
told you that this story takes place every day, over and over again,
in homes throughout the nation- homes like yours, homes like mine,
homes like the Davidson's?
The lesson
we should learn from the Davidson's story is this: If we aren't
entirely certain we can prevent teens from having sex, we had better
make sure they know how to protect themselves when they choose to become
sexually active. The reality is, most teens make the choice to
become sexually active. By the time they turn 18, almost 65% of young
people will have had sex. Sadly, many make uninformed decisions placing
themselves in high-risk situations. My childhood friend, James was
one of those people. James contracted HIV from his high school girlfriend.
He learned that he was HIV positive during his second semester junior
year. While I was busy applying to colleges, James was dealing with
taking his medication and staying healthy. While I was deciding what
to do with my future, James was wondering
if he
had a future. His story is the story of thousands of young people in
America today. He, like so many of my peers, didn't believe he could
become infected. Sadly, James has become another AIDS statistic. But
we must remember that every statistic is someone's friend, someone's
loved one, someone's child. How many friends do my peers and I have
to lose before we are given the resources to protect ourselves from
this deadly disease? So on James' behalf, and on behalf of young people
throughout the United States, I ask parents, educators, and national
leaders to give us the tools to be responsible. Help us to understand
that the threat of AIDS is real. Let us make informed decisions. Give
us a chance to save our lives, and the lives of our friends.
This year,
20,000 American youth will contract HIV. More than 130,000 15 to 34
year olds will die. In a country like America, where we have the resources
to do something about the spread of HIV/AIDS let's act- and let's begin
by educating young people and empowering them to educate each other.
The fact of the matter is, young people are not just part of the problem.
We are the solution. Every day that policymakers fail to recognize
this, 55 of my peers contract HIV.
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Executive Director, Black
Educational AIDS Project and AVAC Board Member
I represent
the AIDS Vaccine Advocacy Coalition (AVAC). I am the Executive Director
of the Black Educational AIDS project (BEAP), the oldest African American
AIDS prevention group in Baltimore.
The young
people have described the magnitude of the HIV/AIDS epidemic, especially
in young persons in the United States. Worldwide, 5.3 million people
were newly infected with HIV this year alone. A safe, effective preventive
HIV/AIDS vaccine is the best way to end this global AIDS pandemic.
Treatment and other prevention are vital, too. Vaccines are the cheapest,
quickest, most effective, and maybe the only way to deal with many
infectious diseases. Social progress to combat infectious diseases
has been largely due to vaccines and sanitation. Further progress globally
on infectious diseases requires vaccine development.
AVAC is
a citizens' advocacy group with the mission to speed development of
preventive HIV/AIDS vaccines. AVAC does this by analyzing obstacles
to HIV vaccine development and advocating to overcome them. After almost
20 years of this epidemic, over 36 million people live with HIV. Yet,
to date there's only one Phase III trial of a vaccine in the United
States that might prevent this disease.
Let me
give you some background about HIV vaccine development.
Most scientists now believe that a vaccine against HIV/AIDS
is possible. A vaccine
is a substance that prepares or primes the body's own immune
system to be ready to defend itself against an infectious
agent that causes
disease - whether a bacteria or virus. There are many successful
vaccines—against
diseases as diverse as smallpox, polio, diphtheria, tetanus, typhoid,
hepatitis A and B, mumps, measles, and many more. There are many approaches
to making preventive vaccines that are safe and effective. Traditionally,
scientists used two methods: the first is a "whole killed" virus
or bacteria that, when given to a person, causes the person's immune
system to prepare itself to defend against the infectious bacteria
or virus when the person became exposed to it in the future. Another
approach—called "live attenuated"—used a version of the
infectious agent—the virus or bacteria—that is changed or weakened
in ways that keep it from causing the disease. The weakened
virus prepares the body's immune system to protect itself
when the person is later
exposed to the actual virus or bacteria that causes the
disease. Now scientists are using newer techniques to use
genetically designed portions
of a virus that cannot cause the disease but can prime
(prepare) a person's immune system to defend against the
disease causing virus.
Scientists
are trying many approaches to develop an HIV/AIDS vaccine:
there has been work on both "whole killed" and "live attenuated," but
neither has reached the stage of human trials. There are,
however, human trials currently underway in which scientists
are testing the
various vaccine candidates made from genetically engineered
portions of the virus.
Let me
describe the process of going from an idea to a licensed
vaccine. Basic research underpins vaccine development for
any infectious disease.
Scientists study those who have had a disease and recovered;
they look at what happens in a person's immune system—the antibodies or cellular
immune response that the body mounts. Scientists then try different
approaches—first in test tubes (in vitro), then in small lab animals,
and next in larger animals (non human primates such as chimpanzees
or monkeys) that have immune systems more like humans. Sometimes, scientists
are able to identify and study an 'animal model'—that is, they find
an animal that is affected by a virus similar to that that infects
humans. The course of the disease is similar in the animal to the course
the virus takes in humans. After an approach appears promising in vitro
(in the lab) and in animals, safety testing is done. Initial safety
tests are done in animals. Then Phase I trials are done—these require
permission from the FDA (called an IND—investigative new drug)—and
are done in small numbers, usually under 100 - of healthy volunteers.
If a vaccine appears to be safe, then testing can move to Phase II,
where additional safety studies and 'immunogenicity' studies are done.
Immunogenicity means the vaccine causes the expected response in people—antibodies
are produced or there is a cellular immune response. Phase II studies
include healthy individuals at low and higher risk of HIV. After successful
Phase I and II trials, testing can go to Phase III trials—done in
many more volunteers. Phase III trials are designed to demonstrate
efficacy. Or in other words, answer the question, "Does the vaccine
protect against infection or disease?"
How do
we know if a vaccine is efficacious in a Phase III trial
for an HIV/AIDS vaccine? This is an important and difficult
concept. Trials are double
blind—neither the volunteers nor the researchers conducting the trials
know which volunteers receive the vaccine and which receive a placebo—a
substance is similar to the vaccine, but does not have any of the 'active
ingredients'. Nothing in any AIDS vaccine being tested can give a volunteer
HIV or AIDS. So how do we know if a vaccine being tested works or not?
Large numbers of individuals who are at high risk of being exposed
to HIV because of their behavior or activities are given either the
test vaccine or the placebo. All volunteers are counseled to engage
in behavior that will prevent HIV/AIDS (use condoms for intercourse,
for example). During the period of the study—several years or more—individuals
are followed, monitored for a variety of responses, and
tested for HIV. Scientists know if a vaccine is effective
by comparing the rate
of actual HIV infections in the group getting the vaccine
to the rate of infections in the placebo group. If a vaccine
is effective, the
group receiving it should have fewer infections than expected
and less than the group getting the placebo. Scientists
use statistics to determine
how effective a particular vaccine is.
A quick
review of what has happened so far in HIV/AIDS vaccine
development shows there have been quite a few Phase I and
Phase II trials. Vaxgen,
a private company, is conducting phase III trials in the
US and Thailand on a vaccine candidate called AIDSVAX,
an approach that uses a genetically
engineered portion of the envelope (outside—gp 120—glycoproteins)
of the HIV virus. In the US there are approximately 5,000
volunteers, mostly men who have sex with men, in the VaxGen
phase III trial. That
trial does not include a single participant under 18 years
old.
The National
Institutes of Health (NIH) fund a network for conducting HIV/AIDS vaccine
trials: the HIV Vaccine Trials Network (HVTN). This network is responsible
for government-sponsored HIV trials. When we review the record of current
and past HIV vaccine trials (only Phase I and Phase II trials, so far),
only one of the 3,200 participants was under age 18.
The lack
of youth participation is important to note. Sixty-five percent of
all 18 year olds are already sexually active. For an HIV vaccine to
have an impact on the incidence of this disease, it must be administered
to individuals before they are placed at risk of acquiring the disease.
That is, before they are sexually active. Yet, in current trials less
than one percent of participants is under the age of 18. Without youth
participation, we risk finding a vaccine that will be useful only for
an adult population.
Today
AVAC joins Advocates for Youth to call for two critical steps that
will speed inclusion of young people in vaccine trials:
- First,
the NIH must identify any scientific, legal, or procedural
barriers to participation in trials by young people within
the next 6 months and work with scientists, policymakers,
and community groups to expeditiously overcome any barriers
that are identified.
- Second,
the HIV Vaccine Trials Network must include young people
at every level in its community advisory boards, scientific
committees, and protocol teams. The HVTN must create
and fund a process that proactively includes young people
in a community organizing effort for trial preparedness.
The NIH
is currently considering proposals from academic centers to establish
an Adolescent Trials Network (ATN). This is an important step that
could make a contribution to speeding the inclusion of young persons
in trials, but it does not itself guarantee anything. This network
is supposed to conduct research, both independently and in collaboration
with existing networks including the HVTN, on promising behavioral,
microbicidal, prophylactic, therapeutic, and vaccine modalities in
HIV-infected and HIV-at-risk adolescents, ages 12 through 24 years.
This network and the HVTN must work together seamlessly to ensure the
participation of young persons in HIV vaccine trials. The ATN and the
HVTN must work with other groups addressing adolescent health needs
to ensure today's youth get the best prevention and treatment interventions.
These groups should include the CDC planning bodies, other research
groups like the HIV Prevention Planning Trials Network (HPTN) and the
Pediatric AIDS Clinical Trials Group (PACTG), privately funded youth
organizations, and others. All of these groups must make sure today's
youth have every opportunity to apply current knowledge of behavior
changes to protect themselves and others from HIV infection.
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Debra L. Hauser, M.P.H.
Vice President,
Advocates for Youth
Advocates
for Youth is pleased to join with the AIDS Vaccine Advocacy Coalition
in this important call to action.
For over
20 years, Advocates for Youth has worked diligently to insure that
young people in the United States and in the developing world have
access to the tools they need to make responsible decisions about sex.
As such, Advocates believes that young people need access to comprehensive
sexuality education, confidential reproductive and sexual health services,
and a realizable stake in the future.
Young
people are contracting HIV in great numbers. In the United
States, as in sub Saharan Africa, young people under the
age of 25 make up
over 50 percent of all new infections. A teenager living
in South Africa today has a 50 percent chance of dying
from AIDS before his or her
35th birthday. Young African American women and young men
who have sex with men in the United States, live with similar
fear—each
faces a disproportionate risk for contracting this infection.
Mai, a
member of Advocates' Youth Council and one of the panelist,
told us five young people become infected with HIV every
minute of every day.
She estimated that 25 young people had contracted the infection
since her introduction her this morning. The clock has
continued to tick—and
by the time this press conference is over, almost 500 young
people will have added their names to the ever-growing
list of those infected
with this deadly disease.
Yet young
people are being left behind in one of the most promising
avenues of research available to us today—research to find an effective
HIV vaccine.
Dr. J.
Lawrence Miller, Executive Director of the Black Educational
AIDS project (BEAP), indicated that less than 1 percent
of vaccine participants
are under the age of 18. It is irresponsible, and in fact
immoral, to continue conducting business as usual—to develop a vaccine
tested entirely on adults and then to wait an additional
five, ten, fifteen
years before bringing to market a vaccine for youth.
Clearly,
young people have the responsibility to protect themselves
from contracting HIV in the present, but we, as a society,
also have a responsibility—the
responsibility to provide them with all of the tools
necessary to safeguard their sexual health. To eradicate
disease we must provide young people with access to HIV
prevention education and
services. Those already infected with the virus need ready
access to effective drug treatment. Couple these strategies
with an HIV vaccine
that is safe and effective for young people and the dream
will become a reality—HIV will go the way of small pox and polio. We
must give young people the opportunity to participate in
HIV vaccine research
and to make certain that their participation is informed
and voluntary. We must sort through and overcome the obstacles
that keep us from creating
a meaningful partnership with youth.
Ours is
a society with a cultural propensity to view young people with little
respect. Youth are often seen as part of the problem and rarely as
part of the solution. But young people have an enormous contribution
to make. Partnering with them, allowing them a meaningful seat at the
table can yield fantastic results:
- They
can help us understand the behavioral and developmental
factors that will affect a vaccine's efficacy.
- They
can reach out to their peers to help communities prepare
for the advent of a vaccine.
- They
can participate on community advisory boards, scientific
committees and protocol teams.
- They
can participate in clinical trials.
With commitment,
foresight, and mutual respect, we can make their participation possible.
And it is this participation that will insure that young people are
not left behind when an HIV vaccine is found.
This past
year, UNAIDS issued a statement declaring that "children, including
infants and adolescents, should be eligible for enrollment in HIV preventive
vaccine trials, both as a matter of equity and as a function of the
fact that in many communities throughout the world they are at high
risk of HIV." They further declared that "efforts should
be taken to design vaccine development programmes that
address the particular ethical and legal considerations
relevant for children and
teens, and safeguard their rights and welfare during participation."
Advocates
for Youth and the AIDS Vaccine Advocacy Coalition believe that young
people have the right to expect that they will be among the first able
to avail themselves of a safe and effective HIV vaccine. We believe
that young people, regardless of race, ethnicity, sexual orientation,
or nation of residence have the right to expect to live past the age
of 35, to enjoy a safe and healthy adolescence, and as they mature
to enter into an intimate relationship free from the fear of HIV.
And so,
it is on behalf of, and along with, young people, that Advocates for
Youth and the AIDS Vaccine Advocacy Coalition issue this call for action.
We call
on The HIV Vaccine Trials Network and all other HIV vaccine research
efforts to immediately reach out to young people to include them as
part of community advisory boards, scientific committees, and protocol
teams.
We call
on the National Institutes of Health to immediately identify all barriers
to young people's inclusion in current and future HIV vaccine trials
and to issue protocols within the next six months to overcome these
barriers safely and effectively.
We, as
a society, stand at a crossroad. Will we act with vision and foresight
to aggressively seek an effective HIV vaccine appropriate for those
most at risk of this disease? Or will we continue on the path of least
resistance?
In 1997
President Clinton issued a challenge to the scientific community to
find an HIV vaccine within ten years. Today, Advocates for Youth and
the AIDS Vaccine Advocacy Coalition strengthen that challenge with
this call to action.
The first
safe and effective HIV vaccine available must be appropriate
for young people and all barriers to their inclusion in
the scientific and educational
process that will make that possible must be overcome immediately.
Future generations deserve the opportunity to live in a
world without AIDS. Society has a responsibility to make
that dream a reality.
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