Korean J Fertil Steril.  2004 Dec;31(4):225-234.

Clinical Efficacy and Hormonal Change of GnRH Antagonist in Controlled Ovarian Stimulation for IVF-ET

• Moon SY
• Chun EK
• Kim SD
• Choi YS
• Jee BC
• Ku SY
• Suh CS
• Choi YM
• Kim JG
• Kim SH

Abstract

OBJECTIVES
To evaluate the efficacy of GnRH antagonist cetrorelix in women undergoing controlled ovarian hyperstimulation (COH) for in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) and to determine changes in serum hormone concentrations during cetrorelix administration.
METHODS
We performed a clinical trial on 30 patients undergoing COH with highly purified follicular stimulating hormone (HP-FSH) and gonadotropin releasing hormone antagonist (GnRHant), cetrorelix. FSH was administrated from day 2 or 3 of cycle with fixed dose and adjusted according to individual response. 0.25 mg of cetrorelix was injected daily subcutaneously from stimulation day 5 until the day of hCG administration. Daily ultrasound monitoring was performed for growing follicles and serum levels of luteinizing hormone (LH), estradiol (E2) and progesterone were measured daily during cetrorelix administration. Up to 4 embryos were transferred.
RESULTS
Mean age of enrolled patients was 32.0+/-3.4 years (mean +/-S.D.). All of 30 patients underwent oocyte pick-up, and embryo transfer was done in 28 patients. The total and mean numbers of received oocytes were 196 and 6.5+/-4.7, the number of fertilized eggs was 111, and the fertilization rate was 56.6%. Total duration of FSH administration was 9.2+/-2.2 days and mean of 24.3+/-7.7 ampules of HP-FSH was administered. Total duration of cetrorelix administration was 5.7+/-1.9 days. Serum LH and progesterone levels were maintained in the range of 1.4~2.9 mIU/mL and 0.3~0.6 ng/ mL, which respectively reflected effective prevention of premature LH surge. Clinical pregnancies were achieved in 9 patients, and overall clinical pregnancy rate was 30.0% per oocyte retrieval, and 32.1% per embryo transfer.
CONCLUSION
GnRH antagonist is safe and convenient for COH for IVF-ET and effective with optimal pregnancy rate.

Keyword

GnRH antagonist; Controlled ovarian hyperstimulation (COH); In vitro fertilization and embryo transfer (IVF-ET)

MeSH Terms

Embryo Transfer
Embryonic Structures
Estradiol
Female
Fertilization
Fertilization in Vitro
Gonadotropin-Releasing Hormone*
Humans
Luteinizing Hormone
Oocyte Retrieval
Oocytes
Ovulation Induction*
Pregnancy
Pregnancy Rate
Progesterone
Sperm Injections, Intracytoplasmic
Ultrasonography
Zygote
Estradiol
Gonadotropin-Releasing Hormone
Luteinizing Hormone
Progesterone