Microdose gonadotropin-releasing hormone agonist flare-up protocol versus multiple dose gonadotropin-releasing hormone antagonist protocol in poor responders undergoing intracytoplasmic sperm injection-embryo transfer cycle.
OBJECTIVE
To compare the efficacy of microdose GnRH agonist (GnRH-a) flare-up and multiple dose GnRH antagonist protocols in patients who have a poor response to a long luteal GnRH-a protocol.


METHODS
Prospective, randomized, clinical study.


METHODS
University hospital.


METHODS
Forty-two poor responder patients undergoing intracytoplasmic sperm injection (ICSI)-embryo transfer cycle.


METHODS
Twenty-one patients received microdose leuprolide acetate (LA) (50 microg twice daily) starting on the second day of withdrawal bleeding. The other 21 patients received 0.25 mg of cetrorelix daily when the leading follicle reached 14 mm in diameter.


METHODS
Serum E(2) levels, number of growing follicles and mature oocytes, embryo quality, dose of gonadotropin used, cancellation, fertilization, implantation rate and pregnancy rate (PR).


RESULTS
The mean serum E(2) concentration on the day of hCG administration was significantly higher in the microdose GnRH-a group than in the GnRH antagonist group (1,904 vs. 1,362 pg/mL). The clinical PRs per started cycle of microdose GnRH-a and GnRH antagonist groups were 14.2% and 9.5%, respectively. There were no statistically significant differences in the other ovulation induction characteristics, fertilization and implantation rates.


CONCLUSIONS
Microdose GnRH-a flare-up protocol and multiple dose GnRH antagonist protocol seem to have similar efficacy in improving treatment outcomes of poor responder patients.
Kahraman
Korhan
K
Ankara University School of Medicine, Department of Obstetrics and Gynecology, Ankara, Turkey. korhankahraman@hotmail.com
Berker
Bulent
B
Atabekoglu
Cem Somer
CS
Sonmezer
Murat
M
Cetinkaya
Esra
E
Aytac
Rusen
R
Satiroglu
Hakan
H
D000328:Adult; D010064:Embryo Implantation / Q000502:physiology; D004624:Embryo Transfer / Q000379:methods*; D004958:Estradiol / Q000097:blood; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone / Q000008:administration & dosage* / Q000819:agonists / Q000037:antagonists & inhibitors; D006727:Hormone Antagonists / Q000627:therapeutic use; D006801:Humans; D016729:Leuprolide / Q000627:therapeutic use; D010062:Ovulation Induction / Q000379:methods; D011247:Pregnancy; D018873:Pregnancy Rate; D020554:Sperm Injections, Intracytoplasmic / Q000379:methods*
D006727:Hormone Antagonists; D007987:Gonadotropin-Releasing Hormone; D004958:Estradiol; D005640:Follicle Stimulating Hormone; D016729:Leuprolide