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pubmed:abstractText |
We report the results of the first use of a steroidal aromatase inhibitor, 4-hydroxyandrostenedione (4-OHA, CGP 32349), in the palliation of patients with advanced, hormone resistant, prostatic cancer. Twelve of 19 patients (63%), who had relapsed following castration and other therapies, gained significant pain relief following weekly intramuscular injections of 4-OHA. Five patients (31%) experienced a transient 'tumour flare', represented by an increase in bone pain soon after commencing treatment. The mechanism of action of 4-OHA in palliating patients with advanced prostatic cancer is obscure at present, but may represent an important new treatment modality which may lead to greater insight into prostatic biology.
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