The Newsweek magazine issue of November 17, 1997 featured
"Impotency" as the cover story. In particular, three
developmental-stage medications, each one a simple pill,
were highlighted as having the potential to become "...the
chemical cutting edge of the next sexual revolution." The
three new drugs are briefly described below :
1. Viagra (sildenafil),
Pfizer
This drug has completed clinical trials and was submitted to
the FDA in September, 1997. Viagra is a Type V
phosphodiesterase inhibitor. It is used as needed, an hour
before intended sexual activity. According to Newsweek, this
one offers "...the biggest hope...," having been tested in
more than 4500 men and demonstrating an effectiveness of 45%
- 81%. Viagra has received fast-track status by the FDA and
may be approved as soon as mid-1998.
2. Vasomax (phentolamine), Zonagen
This drug has also completed clinical testing and has also
been submitted to the FDA. Originally, this drug was given
as injection therapy for impotency, and it has now been
re-formulated into an oral preparation. Like Viagra, Vasomax
causes corporal smooth muscle relaxation and penile
erection; it is also taken as needed prior to intended
sexual activity. Vasomax could also be approved during
1998.
3. Spontane (apomorphine), TAP Pharmaceuticals, Inc.
Appearing to act centrally upon neural mechanisms for
erections, Spontane is still in clinical trials. It promises
to act best in men with psychogenic impotency, and generally
in response to physical stimulation.
USRF has from the onset been a study site for the U.S.
clinical trials for Viagra. A number of our patients are
currently in long-term open-label extensions of the early
Viagra studies, and for the most part, our patients attest
to the drug's safety and efficacy. At the present time (4th
quarter, 1997), no new patients are being accepted into
studies, pending FDA action.
*Note: At the time of this writing,
Newsweek did not have a website. Reprints of the cover
story, "The New Science of Impotence: Can It Be Cured with a
Pill?," are available by phone at 1-212-445-4870.
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