Clomegestone acetate (USANTooltip United States Adopted Name) (developmental code name SH-741), or clomagestone acetate, also known as 6-chloro-17α-acetoxy-16α-methylpregna-4,6-diene-3,20-dione, is a steroidalprogestin of the 17α-hydroxyprogesterone group which was developed as an oral contraceptive but was never marketed.[1][2] It is the acetateester of clomegestone, which, similarly to clomegestone acetate, was never marketed.[1] Clomegestone acetate is also the 17-desoxy cogener of clometherone, and is somewhat more potent in comparison.[3] Similarly to cyproterone acetate, clomegestone acetate has been found to alter insulin receptor concentrations in adipose tissue,[4] and this may indicate the presence of glucocorticoid activity.[5][6]
^Krauth MC, Schillinger E (November 1977). "Changes in insulin receptor concentration in rat fat cells following treatment with the gestagens clomegestone acetate and cyproterone acetate". Acta Endocrinologica. 86 (3): 667–672. doi:10.1530/acta.0.0860667. PMID579029.
^Krauth MC, Schillinger E (November 1977). "Changes in insulin receptor concentration in rat fat cells following treatment with the gestagens clomegestone acetate and cyproterone acetate". Acta Endocrinologica. 86 (3): 667–672. doi:10.1530/acta.0.0860667. PMID579029.
^Schillinger E, Gerloff C, Gerhards E, Günzel P (February 1974). "Glucose tolerance and serum insulin in rats and insulin sensitivity of rat adipose cells following treatment with the progestogen clomegestone acetate". Acta Endocrinologica. 75 (2): 305–313. doi:10.1530/acta.0.0750305. PMID4406547.