|Chemical and physical data|
|Molar mass||426.57 g·mol−1|
|3D model (JSmol)|
Mespirenone (INN) (developmental code name ZK-94679), also known as Δ1-15β,16β-methylenespironolactone, is a steroidal antimineralocorticoid of the spirolactone group related to spironolactone that was never marketed. Animal research found that it was 3.3-fold more potent as an antimineralocorticoid relative to spironolactone. In addition to its antimineralocorticoid properties, mespirenone is also a progestogen, antigonadotropin, and antiandrogen. It is 2- to 3-fold as potent as spironolactone as a progestogen and antigonadotropin but its antiandrogenic activity is markedly reduced and weak (though still of significance) in comparison. Mespirenone is also a potent and specific enzyme inhibitor of 18-hydroxylase and thus of mineralocorticoid biosynthesis. The drug was under development by Schering (now Bayer Schering Pharma) and reached phase II clinical trials but was discontinued in 1989.
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- Losert W, Bittler D, Buse M, Casals-Stenzel J, Haberey M, Laurent H, Nickisch K, Schillinger E, Wiechert R (1986). "Mespirenone and other 15,16-methylene-17-spirolactones, a new type of steroidal aldosterone antagonists". Arzneimittelforschung. 36 (11): 1583–600. PMID 3028435.
- Arzneimittel-Forschung. Editio Cantor. 1991.
- Nishino Y, Schröder H, el Etreby MF (1988). "Experimental studies on the endocrine side effects of new aldosterone antagonists". Arzneimittelforschung. 38 (12): 1800–5. PMID 3245852.
- Opoku J, Kalimi M, Agarwal M, Qureshi D (1991). "Effect of a new mineralocorticoid antagonist mespirenone on aldosterone-induced hypertension". Am. J. Physiol. 260 (2 Pt 1): E269–71. PMID 1996630.
- Weindel K, Lewicka S, Vecsei P (1991). "Inhibitory effects of the novel anti-aldosterone compound mespirenone on adrenocortical steroidogenesis in vitro". Arzneimittelforschung. 41 (9): 946–9. PMID 1796922.
- Eckhard Ottow; Hilmar Weinmann (8 September 2008). Nuclear Receptors as Drug Targets. John Wiley & Sons. pp. 410–. ISBN 978-3-527-62330-3.
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