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Modrenal®
(trilostane), a drug that works in a different way from other
hormone therapies, appears to be a useful new treatment option
for women with advanced, post-menopausal breast cancer, according
to British researchers.
Professor
Gavin Vinson of the University of London told a symposium of breast
cancer specialists in London that Modrenal appears to uniquely
change the effect of the hormone estrogen at an important binding
site and therefore seems able to reverse or slow the progression
of breast cancer.
Over 800 patients
with breast cancer have received Modrenal in clinical trials,
and researchers said clinical response rates to the drug have
been "in excess of 40 percent."
In hormone-sensitive
breast cancer, which accounts for about three quarters of breast
tumors, the female hormone estrogen is the principal agent that
drives cancer cell growth.
The most widely
prescribed drug for breast cancer, Tamoxifen, neutralizes the
action of estrogen. A newer class of drugs, aromatase inhibitors,
suppress the production of estrogen in post-menopausal women.
"Although
the majority of women diagnosed with breast cancer respond initially
to hormone treatment, many tumors become resistant to current
treatments," said Dr. Chris Wood, CEO of Bioenvision, the
developer of Modrenal.
Because of
Modrenal's different approach to dealing with estrogen, "the
drug can provide doctors with a therapeutic option when choices
for the patient are fast running out," Wood said. "It
can potentially add weeks and months to life. For patients and
their families, the importance of this cannot be underestimated."
Other
Sources: Bioenvision
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