title: Comparison of outcome of clomiphene citrate/human menopausal gonadotropin/cetrorelix protocol and buserelin long protocol--a randomized study.
abstract: This study evaluates the efficacy of a stimulation protocol with clomiphene citrate (CC)/human menopausal gonadotropin (hMG)/cetrorelix and its effects on oocyte quality and endometrium. One hundred and twenty couples with male-factor infertility who were about to undergo their first intracytoplasmic sperm injection cycles were randomized into two groups. Sixty women were stimulated with the CC/hMG/cetrorelix protocol (cetrorelix group) and 60 received the buserelin long protocol (buserelin group). Fewer oocytes were recovered in the cetrorelix group than in the buserelin group (mean +/- standard deviation (SD): 11.1 +/- 4.0 vs. 17.3 +/- 5.8, p < 0.001); however, the percentages of metaphase II, metaphase I and germinal vesicle oocytes were similar between the two groups. Serum estradiol level was significantly lower in the cetrorelix than in the buserelin group (mean +/- SD: 2600.58 +/- 1189.11 vs. 3293.46 +/- 1221.49 pg/ml, p = 0.006), but the endometrial thickness was similar. The implantation rates (19.2% vs. 17.7%) and the pregnancy rates (41.7% vs. 40.0%) were similar between groups. The ampoules (mean +/- SD: 18.9 +/- 3.0 vs. 38.9 +/- 12.2, p < 0.001) and injections (mean +/- SD: 6.8 +/- 1.1 vs. 15.7 +/- 3.1, p < 0.001) of gonadotropin used were significantly lower in the cetrorelix group than in the buserelin group. No patients in either group developed a premature luteinizing hormone surge. The present study found no statistically significant difference between the two treatment modalities with regard to pregnancy rates.
authors.affiliation: Department of Obstetrics and Gynecology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan.
authors.forename: Yu-Hung
authors.initials: YH
authors.lastname: Lin
authors.forename: Jiann-Loung
authors.initials: JL
authors.lastname: Hwang
authors.forename: Kok-Min
authors.initials: KM
authors.lastname: Seow
authors.forename: Lee-Wen
authors.initials: LW
authors.lastname: Huang
authors.forename: Bih-Chwen
authors.initials: BC
authors.lastname: Hsieh
authors.forename: Chi-Ruey
authors.initials: CR
authors.lastname: Tzeng
mesh_terms: D000328:Adult; D002064:Buserelin / Q000008:administration & dosage*; D006063:Chorionic Gonadotropin / Q000008:administration & dosage; D002996:Clomiphene / Q000008:administration & dosage*; D046149:Embryo Culture Techniques; D004958:Estradiol / Q000097:blood; D005260:Female; D005300:Fertility Agents, Female / Q000008:administration & dosage; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone / Q000008:administration & dosage / Q000031:analogs & derivatives*; D006801:Humans; D007248:Infertility, Male / Q000628:therapy; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D008596:Menotropins / Q000008:administration & dosage*; D011247:Pregnancy; D020554:Sperm Injections, Intracytoplasmic; D016896:Treatment Outcome
chemical_list: D006063:Chorionic Gonadotropin; D005300:Fertility Agents, Female; D002996:Clomiphene; D007987:Gonadotropin-Releasing Hormone; D004958:Estradiol; D008596:Menotropins; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; C062876:cetrorelix; D002064:Buserelin