Cetrorelix

ChEBI: A synthetic ten-membered oligopeptide comprising N-acetyl-3-(naphthalen-2-yl)-D-alanyl, 4-chloro-D-phenylalanyl, 3-(pyridin-3-yl)-D-alanyl, L-seryl, L-t rosyl, N5-carbamoyl-D-ornithyl, L-leucyl, L-arginyl, L-prolyl, and D-alaninamide residues coupled in sequence. A gonadotrophin-releasing hormone (GnRH antagonist, it is used for treatment of infertility and of hormone-sensitive cancers of the prostate and breast.
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Cetrorelix is a synthetic ten-membered oligopeptide comprising N-acetyl-3-(naphthalen-2-yl)-D-alanyl, 4-chloro-D-phenylalanyl, 3-(pyridin-3-yl)-D-alanyl, L-seryl, L-tyrosyl, N(5)-carbamoyl-D-ornithyl, L-leucyl, L-arginyl, L-prolyl, and D-alaninamide residues coupled in sequence. A gonadotrophin-releasing hormone (GnRH) antagonist, it is used for treatment of infertility and of hormone-sensitive cancers of the prostate and breast. It has a role as a GnRH antagonist and an antineoplastic agent.|Cetrorelix is a man-made hormone that blocks the effects of Gonadotropin Releasing Hormone (GnRH). GnRH controls another hormone that is called luteinizing hormone (LH), which is the hormone that starts ovulation during the menstrual cycle. When undergoing hormone treatment sometimes premature ovulation can occur, leading to eggs that are not ready for fertilization to be released. Cetrorelix does not allow the premature release of these eggs to occur.|Cetrorelix is a Gonadotropin Releasing Hormone Receptor Antagonist. The mechanism of action of cetrorelix is as a Gonadotropin Releasing Hormone Receptor Antagonist. The physiologic effect of cetrorelix is by means of Decreased GnRH Secretion.|Cetrorelix is cetrorelix is a synthetic decapeptide which is structurally related to gonadotrophin-releasing hormone (luteinising-hormone releasing hormone). It acts as an LHRH antagonist. (from ASTA Medica)
Cetrorelix was launched in Germany for the treatment of female infertility. It is a decapeptidic analog of luteinizing hormone-releasing hormone (LH-RH) bearing structural modifications in the crucial positions 1, 2, 3, 6 and 10 : [Ac-D-Nal1, D-4-CI Phe-2, D-Pal3, D-Cit6, D-Alal0]-GnRH. Cetrorelix is an extremely potent and long acting gonadotrophin releasing hormone (GnRH) antagonist and thus blocks gonadotrophins and sex steroid secretion immediately after administration. Moreover, it has a low histamine-releasing potency. Cetrorelix will be the first LH-RH antagonist approved worldwide. In several Phase III clinical trials, female patients receiving Cetrorelix had a successful controlled ovulation thus avoiding a premature LH-surge. Cetrorelix could be a first-choice in-vitro fertilization (IVF) treatment without the complications of current controlled ovarian hyperstimulation protocols. Cetrorelix is currently under clinical investigation for the treatment of diverse sex hormone dependent disorders such as benign prostate hypertrophy, breast, ovarian or prostate cancers and diverse gynaecological disorders.
Cetrorelix acetate is a synthetic decapeptide with gonadotropin-releasing hormone (GnRH) antagonistic activity. Cetrorelix acetate is an analog of native GnRH with substitutions of amino acids at positions 1, 2, 3, 6, and 10. The molecular formula is C70H92CIN17O14(Ac-D-Nal1-D-Cpa2-D-Pal3-Ser4-Tyr5- D-Cit6-Leu7-Arg8-Pro9-D -Ala10-NH2), and the molecular weight is 1431 Dalton, calculated as the anhydrous free base.