The journal of medical investigation : JMI
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Randomized Controlled Trial Clinical Trial
Prevention of the initial testosterone surge induced by a luteinizing hormone-releasing hormone analogue in prostate cancer patients: the endocrinological effects of pretreatment with chlormadinone acetate.
We investigated the endocrinological effects of pretreatment with chlormadinone acetate (CMA) in preventing the initial testosterone surge induced by a luteinizing hormone-releasing hormone (LH-RH) analogue. A total of 25 patients with previously untreated prostate cancer were included in this study. The patients were randomly assigned to 2 treatment groups: Group 1; CMA therapy was begun 4 weeks before the initial LH-RH analogue injection. ⋯ However, LH and testosterone levels remained beneath pretreatment values in both groups. The mean relative PSA levels did not significantly increased on day 3 and day 7 in both groups. Our results indicate that pretreatment with CMA for 2 weeks was sufficient to prevent the initial testosterone surge in the maximal androgen blockade which was associated with CMA.