Edogestrone (, ) (developmental code name PH-218), or edogesterone, also known as 17α-acetoxy-3,3-ethylenedioxy-6-methylpregn-5-en-20-one, is a steroidal progestin and

antiandrogen Antiandrogens, also known as androgen antagonists or testosterone blockers, are a class of drugs that prevent androgens like testosterone and dihydrotestosterone (DHT) from mediating their biological effects in the body. They act by blocking the ...

of the

17α-hydroxyprogesterone 17α-Hydroxyprogesterone (17α-OHP), also known as 17-OH progesterone (17-OHP), or hydroxyprogesterone (OHP), is an endogenous progestogen steroid hormone related to progesterone. It is also a chemical intermediate in the biosynthesis of many o ...

group which was synthesized in 1964 but was never marketed. Similarly to the structurally related steroid

cyproterone acetate Cyproterone acetate (CPA), sold alone under the brand name Androcur or with ethinylestradiol under the brand names Diane or Diane-35 among others, is an antiandrogen and progestin medication used in the treatment of androgen-dependent condition ...

, edogestrone binds directly to the androgen receptor and antagonizes it, displacing

androgen An androgen (from Greek ''andr-'', the stem of the word meaning "man") is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This in ...

s like

testosterone Testosterone is the primary sex hormone and anabolic steroid in males. In humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristi ...

from the receptor, though not as potently as cyproterone acetate. The drug has also been found to suppress

production, likely via progesterone receptor activation-mediated antigonadotropic activity.

References

Abandoned drugs Acetate esters Antigonadotropins Pregnanes Progestogen esters Progestogens Spiro compounds Steroidal antiandrogens {{Genito-urinary-drug-stub

See also

References