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November
23, 2001 - The FDA has approved Dutasteride for use in
treating "the signs and symptoms of benign prostatic
hyperplasia."
The
tentative approval was issued on November 20, 2001. At this
time there is no other documentation available giving
more details but we will add them as soon as they become available.
The
approval was expected as Glaxo had previously indicated that
they were anticipating approval in November or December of
2001. Glaxo submitted the new drug application (NDA) for Dutasteride
in the 4th quarter of 2000 and a marketing approval application
(MAA) was submitted in the 3rd quarter of 2001. Now that it
has been approved Glaxo will be requested to submit a supplemental
new drug application (sNDA) that includes 2 year's worth of
additional data following up the patients who have been using
the drug.
After
the approval process the FDA sends the drug company a letter
requesting additional information from them such as an example
of the packaging and marketing materials, package inserts,
etc. The FDA has to approve all aspects of the drug including
how its marketed so consumers should not expect the drug to
be available until early 2002. (click
here to see an example of the type of information the FDA
requests [PDF format])
At
a previous presentation done for financial analysts Glaxo
stated that the results of the BPH trials will be announced
at the European Association of Urology meeting in February
2002. This is where the drug will most likely be launched
since it is a prostate drug. We don't anticipate it being
available to consumers before then.
Once
it is available doctors can prescribe it for consumers for
hair loss as the FDA allows any drug to be prescribed for
any other purpose under its 'off label' use laws.
According to unconfirmed sources, Glaxo submitted data for
a 0.5mg dose as well as a 2.5mg dose so its not known yet
which dose is going to be available or if both doses will.
As
far as Dutasteride being made available as a hair loss drug,
we have seen some information that Glaxo is planning on submitting
a NDA for use as a hair loss drug in 2002. However this cannot
take place until Glaxo completes Phase 3 studies for hair
loss. At this time we are unaware of any activity taking place
that would indicate Phase 3 hair loss studies are underway.
Most people believe that Glaxo will first see how people respond
to Dutasteride as there is some concern about the sexual side
effects based on Dutasteride's ability to suppress much more
DHT than Finasteride. At this time there is insufficient information
to determine if this will be a factor or not.
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