Asoprisnil ecamate (INN) (developmental code name J-956) is a synthetic, steroidal selective progesterone receptor modulator (SPRM) which was under development for the treatment of endometriosis, uterine fibroids, and menopausal symptoms but was discontinued.[1][2][3] It is a potent and highly selective ligand of the progesterone receptor with mixed agonistic and antagonistic activity and much reduced antiglucocorticoid activity relative to mifepristone.[2][3][4] The drug reached phase III clinical trials for the aforementioned indications prior to its discontinuation.[1]
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Other names | J-956; 11β-(4-((E)-(Ethylcarbamoyl-oxyimino)methyl)phenyl)-17β-methoxy-17α-(methoxymethyl)estra-4,9-dien-3-one |
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Formula | C31H40N2O5 |
Molar mass | 520.670 g·mol−1 |
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