초록 ▼

Methods of treatment and prevention of estrogen-related diseases, and of fertility control, include low dose (e.g. less than 50 nanomolar serum concentration) administration of certain anabolic steroids, progestins and other substantially non-masculinizing androgenic compounds. Sustained release for

Methods of treatment and prevention of estrogen-related diseases, and of fertility control, include low dose (e.g. less than 50 nanomolar serum concentration) administration of certain anabolic steroids, progestins and other substantially non-masculinizing androgenic compounds. Sustained release formulations substantially free of organic solvent, and sustained release formulations for maintaining low serum levels of androgen are disclosed.

대표청구항 ▼

[ What is claimed is:] [1.] A pharmaceutical composition comprising a pharmaceutically acceptable carrier or diluent, and a plurality of sustained release particles, said particles comprising an androgenic steroid dispersed within a sustained-release binder which is biocompatible with human tissue a

[ What is claimed is:] [1.] A pharmaceutical composition comprising a pharmaceutically acceptable carrier or diluent, and a plurality of sustained release particles, said particles comprising an androgenic steroid dispersed within a sustained-release binder which is biocompatible with human tissue and which undergoes biodegradation in the body into biocompatible metabolic products, wherein said particles are capable, under standard conditions, of releasing said androgenic steroid during and as result of said biodegradation of said binder at a rate and duration which maintains circulating serum levels of said androgenic steroid between 1.0 and 50.0 nanomoles per liter during a time period beginning 48 hours after administration and ending at least 28 days after administration, wherein said androgenic steroid has a Ki value of less than about 2.times.10.sup.-8 M for the androgen receptor, and an androgen receptor-mediated inhibitory effect on the growth of human breast cancer ZR-75-1 cells which reaches half-maximal value at a concentration below 3.0 nanomoles per liter, and no visible masculinizing activity.