Both oestrogen and testosterone are very similar chemically, so ramping up the levels of oestrogen in the body can reduce the amount of testosterone produced - and slow prostate cancer growth.

BBC: Skin patches 'tackle prostate cancer'

Dendreon conducted two clinical trials of Provenge in men whose prostate cancer had spread to other parts of the body and was not responding to hormone therapy.

FORBES: Magazine Article

Dendreon scored a surprise win last month when a panel of FDA advisers recommended that Provenge be approved to treat men whose prostate cancer has spread to other parts of the body.

FORBES: Magazine Article

Dendreon (nasdaq: DNDN - news - people ) scored a surprise win last month when a panel of FDA advisers recommended that Provenge be approved to treat men whose prostate cancer has spread to other parts of the body.

FORBES: The Danger In Dendreon