| Experts doubtful
hormone therapy blocks, treats ills
By Denise Grady
NEW YORK TIMES NEWS SERVICE
April 18, 2002
A new report by a panel of
international experts casts doubt on
long-standing claims that
hormone replacement in
postmenopausal women can
prevent or treat a variety of ills,
including heart disease,
Alzheimer's disease, major depression, urinary incontinence and broken
bones due to osteoporosis.
While hormone therapy is
the most effective way to relieve
menopausal symptoms such
as hot flashes and night sweats,
scientific evidence is insufficient
to support its use for the other
problems, according to the
report, which is to be published in June.
And the hormones have well-documented
drawbacks, including an increased risk of blood clots and gallbladder disease
and, with prolonged use, breast cancer.
About 20 percent of women
who reach menopause naturally use
hormone replacement at least
temporarily, according to the North
American Menopause Society.
The figure is higher for women who
reach menopause early because
of surgery to remove their ovaries.
Hormone replacement usually
consists of estrogen plus another
hormone, progestin, or,
for women who have had hysterectomies, estrogen alone.
Given the known risks and
limited benefits of hormone treatments,
the report says, each woman
and her doctor should weigh her
medical history carefully
in deciding whether she really needs it.
Drugs to lower cholesterol
and blood pressure are better for
reducing the risk of heart
disease for many women, and other
nonhormonal drugs work better
in preventing fractures.
That advice departs from
decades of medical practice: Many
women and their doctors
assumed that taking estrogen at
menopause was a way to preserve
youth and health.
American women spent $2.75
billion on hormone replacement in
2001, according to IMS Health,
a company that tracks drug sales.
Premarin, a form of estrogen
replacement therapy, was the third
most commonly prescribed
drug in the United States last year with
more than 45 million prescriptions
dispensed.
The new report, called the
International Position Paper on Women's
Health and Menopause, was
financed by the National Institutes of
Health and the Giovanni
Loren Zini Medical Science Foundation of Italy.
The full report, which is
book-length, is to be issued by the
National Heart, Lung and
Blood Institute, but the chapter on
hormone replacement and
other treatments was published early
and distributed at a symposium
at the National Institutes of Health.
Researchers who worked on
the report said some of its findings
might shock doctors and
patients.
Dr. Vivian Pinn, director
of the NIH Office of Research on Women's
Health and a co-editor
of the report, said many people, including
doctors, had believed
that hormone replacement would prevent
heart disease and
strokes and help women live longer.
But, she said, "as
we're learning more from long-term studies and
better defined studies
over the past few years, all these things
we've thought about
the wonders of hormone replacement may
not be holding up
under scrutiny."
Dr. Nanette Wenger,
chief of cardiology at Grady Memorial
Hospital in Atlanta
and editor of the report, said that until fairly
recently many doctors
simply told women: " 'Take this. You'll look
better. You'll feel
better.' People acquiesced. There was no
questioning."
"Given the fact that
hormone replacement has been around for half
a century, it's really
only in the last decade that we've begun to get
stringent scientific
evidence from randomized controlled trials,"
Wenger said. "And
in many areas there have been enormous surprises."
For instance, Wenger
said, three recent controlled trials have
found that, rather
than protecting women from heart attacks and
strokes, hormone replacement
increases their risk.
Last year, the American
Heart Association said women should not
regard hormone replacement
as a means of treating or preventing
heart disease. Even
though hormones can help lower bad LDL
cholesterol and raise
good HDL cholesterol, the group said statin
drugs were far better
at doing so.
Hormone replacement can prevent
bone loss from osteoporosis,
and some studies have suggested
it reduces the risk of fractures.
But bone loss resumes after
a woman stops taking hormones.
Moreover, no large randomized
controlled trials have determined
whether the treatment reduces
fractures.
The Food and Drug Administration
has approved hormone
therapy to prevent
osteoporosis, but not to treat it.
Wenger said doctors
had long assumed that hormone replacement
would help older women
who suffered from urinary incontinence.
"But now two trials show
no improvement, and there may be a
worsening," she said.
"So many of the earlier presumptions,
as they come to trial, do not
show evidence of benefit,"
Wenger said.
Dr. Deborah Grady,
a professor of epidemiology and medicine at
the University of
California San Francisco, said, "A decade ago I
thought preventive
hormone therapy should probably be prescribed to most
postmenopausal women, except those at high risk for breast cancer."
As lead author of the
1992 guidelines on hormone replacement for
the American College
of Physicians, she incorporated that view
into the guidelines.
But now, she says,
"there have been major changes in the way we
use hormone therapy."
Today, Grady said,
"rather than prescribing it for most
postmenopausal women,
I prescribe it for symptoms, for which it
is far and away the
best treatment."
In many women, she said,
hot flashes diminish after three to
six months even without
treatment, though they may not go
away entirely for
four to five years. So she tries to taper
women off the drugs
and stop every year or two to see if they
can get by without
them. Then, for women who have not had
fractures or other
serious risk factors for osteoporosis, she
recommends a bone
density test at age 65. Those at risk for
fractures can then
take medication, she said.
"So I spend a lot
of my life now trying to figure out how to help
women taper off estrogen,"
she said. Many can do it gradually,
though a few have
severe problems with hot flashes and
decide to keep taking
the drugs, she said.
|
THE NORTH AMERICAN MENOPAUSE
SOCIETY RESPONDS TO ARTICLE ON HORMONE THERAPY
CLEVELAND (April 22, 2002)
– A recent article published in the New York Times (Thursday, April 18,
2002) that previews an unpublished report by an international panel has
generated widespread media attention for its conclusions questioning the
effectiveness of hormone therapy in postmenopausal women for preventing
heart disease, Alzheimer’s disease, osteoporotic fractures, depression,
and urinary incontinence. To address the concerns expressed by women and
healthcare providers, The North American Menopause Society (NAMS) is issuing
this response.
“NAMS has not yet had an
opportunity to review the final report, which will be published in June
by the National Heart, Lung, and Blood institute,” said Wulf H. Utian,
MD, PhD, Executive Director and Honorary Founding President of NAMS. “However,
it should be emphasized that this report is a compilation of previously
published research mostly in elderly women with established disease, and
it will present no new research in itself.”
The report, called the International
Position Paper on Women’s Health and Menopause, was developed by 28 physicians
and researchers from the United States, Australia, and several European
countries. One chapter of the report was distributed at a symposium last
month at the National Institutes of Health.
“The major issue for perimenopausal
and early postmenopausal women considering hormone replacement therapy
is whether such therapy will actually reduce the likelihood of development
of cardiovascular disease, stroke, or Alzheimer’s disease,” said Dr. Utian.
“At present, definitive answers are not available. Fortunately, several
major clinical trials are underway that are attempting to provide answers
to these questions. The most significant trial is the Women’s Health Initiative,
being conducted under the auspices of the National Institutes of Health.”
“At this time, NAMS does
not recommend making any changes from its current recommendations, as have
been reported in various NAMS publications.”
NAMS is North America’s leading
nonprofit organization dedicated to promoting women’s health through menopause
and beyond through an understanding of menopause. The Society’s unique
multidisciplinary membership includes 2,000-plus experts from medicine,
nursing, sociology, psychology, anthropology, epidemiology, nutrition,
education, and basic science — helping NAMS to be the preeminent resource
on all aspects of menopause to healthcare providers and the public.
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