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  • Title: Liarozole.
    Author: Bryson HM, Wagstaff AJ.
    Journal: Drugs Aging; 1996 Dec; 9(6):478-84; discussion 485. PubMed ID: 8972247.
    Abstract:
    Liarozole prevents the catabolism of retinoic acid via inhibition of 4-hydroxylase and exhibits retinoid-sparing and retinoid-mimetic effects in vivo. Liarozole is also a potent inhibitor of estrogen (via inhibition of aromatase) and testicular androgen synthesis (inhibition of 17, 20-lyase). Although testosterone levels decrease in vivo after single dose administration of liarozole, testosterone levels normalise as a result of pituitary feedback after multiple doses. Liarozole reduced the tumour size of androgen-dependent and -independent prostatic carcinomas in animal models. Liarozole also demonstrated chemopreventive activity in vivo. In phase I and II trials in patients with relapsed prostate cancer, liarozole achieved a complete response (assessed using prostate specific antigen levels) in 4% and a partial response in 26% of patients. Cutaneous adverse events, similar to those associated with excess levels of retinoic acid, were the most frequently reported events associated with liarozole.
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