Failure of the GnRH antagonist ganirelix to block the positive feedback effect of exogenous estrogen in normal women

Fertil Steril. 2010 Sep;94(4):1554-1556. doi: 10.1016/j.fertnstert.2009.12.055. Epub 2010 Feb 10.

Abstract

This study investigated whether the GnRH antagonist ganirelix is able to block the positive-feedback effect of E2 in normal women. Ganirelix was unable to block the positive-feedback effect, suggesting that the clinical efficacy of GnRH antagonists in IVF cycles is determined by the hyperstimulation process.

Publication types

  • Controlled Clinical Trial

MeSH terms

  • Administration, Cutaneous
  • Adult
  • Estradiol / administration & dosage
  • Estradiol / blood
  • Estradiol / pharmacology*
  • Feedback, Physiological / drug effects*
  • Female
  • Gonadotropin-Releasing Hormone / administration & dosage
  • Gonadotropin-Releasing Hormone / analogs & derivatives*
  • Gonadotropin-Releasing Hormone / antagonists & inhibitors*
  • Gonadotropin-Releasing Hormone / pharmacology
  • Gonadotropin-Releasing Hormone / therapeutic use
  • Health
  • Hormone Antagonists / administration & dosage
  • Hormone Antagonists / pharmacology
  • Hormone Antagonists / therapeutic use
  • Humans
  • Menstrual Cycle / blood
  • Menstrual Cycle / drug effects
  • Ovulation Induction
  • Progesterone / blood
  • Treatment Failure

Substances

  • Hormone Antagonists
  • Gonadotropin-Releasing Hormone
  • Progesterone
  • Estradiol
  • ganirelix