This book chapter presents the most important clinical aspects concerning the gonadotropin-releasing hormone antagonist cetrorelix and its importance in reproductive medicine. After an overview of the historical milestones in the development and establishment of cetrorelix in the context of ovarian stimulation treatment, its dosage, effects, and side effects are evaluated. The chapter terminates with a conclusion emphasizing the ease of use and the increase in patient safety because of a significantly reduced risk of ovarian hyperstimulation syndrome with cetrorelix compared with the agonist protocol.
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http://dx.doi.org/10.1016/j.xfre.2022.11.012 | DOI Listing |
Pharmaceuticals (Basel)
December 2024
College of Pharmacy, University of Illinois, Chicago, IL 60612, USA.
Overexpression of the gonadotropin-releasing hormone receptor (GnRH-R) plays a vital role in the advancement of reproductive malignancies such as ovarian, endometrial, and prostate cancer. Peptidomimetic GnRH antagonists are a substantial therapeutic development, providing fast and reversible suppression of gonadotropins by directly blocking GnRH-R. Unlike typical GnRH agonists, these antagonists prevent the early hormonal flare, have a faster onset of action, and have a lower risk of cardiovascular problems.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
The judicious selection of ovulation inhibitors in ovarian stimulation protocols is crucial for the success of assisted reproductive technology (ART). Herein, we investigate the dose-dependent effects of chlormadinone acetate (CMA) and cetrorelix, two distinct ovulation inhibitors, on oocyte maturation in patients with normal ovarian reserve, using univariable and multivariable Poisson regression analyses. Patients undergoing progestin-primed ovarian stimulation (PPOS) with CMA (n = 299) or gonadotropin-releasing hormone antagonist (GnRH-ant) with cetrorelix (n = 605) during their initial in vitro fertilization cycle were enrolled at our center from March 2018 to October 2020 (N = 904).
View Article and Find Full Text PDFGen Comp Endocrinol
January 2025
University of Nebraska-Lincoln, Department of Animal Science, Lincoln, NE 68583-0908, United States. Electronic address:
The second form of gonadotropin-releasing hormone (GnRH-II) and its receptor (GnRHR-II) are abundantly produced within the porcine testis and immunolocalize within the seminiferous tubules, suggesting a role in spermatogenesis and/or sperm function. The objective of this study was to quantify GnRH-II and GnRHR-II abundance within boar reproductive tract tissues and examine their role in porcine sperm function. Immunoblotting revealed GnRHR-II abundance was 12-fold greater (P < 0.
View Article and Find Full Text PDFF S Sci
October 2024
Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut. Electronic address:
Objective: To use murine avatars for studying human endometriotic lesion response to 2 different hormonal regimens to determine whether progesterone receptor (PR) can prospectively predict response to progestin-based therapy. Endometriosis is a chronic gynecologic disease afflicting 1-in-10 reproductive-age women; however response to medical therapy is highly variable because endometriotic lesions do not consistently respond to first-line progestin-based therapy. We have previously demonstrated in a retrospective study that PR status in lesions is correlated with response to progestins.
View Article and Find Full Text PDFBull Exp Biol Med
August 2024
Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg, Russia.
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