title: [Comparison of Alarelin and Triptorelin in the long-protocol ovulation induction in in vitro fertilization and embryo transfer].
abstract: OBJECTIVE
  To compare the pituitary down-regulatory effects of the two gonadotropin-releasing hormone agonists Alarelin and Triptorelin in the long protocol of ovulation induction in in vitro fertilization and embryo transfer (IVF-ET).
  
  
  METHODS
  We included in this study 122 patients aged 24-39 years treated by IVF-ET for secondary infertility, with 10-20 pre-antral follicles and obstruction of the fallopian tube. Seventy-eight of them received Alarelin, and the other 44 Triptorelin. Comparative analyses were made on the pituitary down-regulatory effects of the two gonadotropin-releasing hormone agonists and the clinical outcomes of IVF-ET.
  
  
  RESULTS
  No premature LH surge and ovulation, nor severe hyperovarian stimulation syndrome was found in either group. There were no significant differences between the two groups in the mean dose and duration of gonodatropin treatment, the numbers of oocytes retrieved, mature oocytes and top-quality embryos, and the rates of 2PN, multi-sperm fertilization, cleavage, embryo transfer, embryo implantation, clinical pregnancy and early miscarriage (P > 0.05), but the rate of cancelled cycles was significantly higher in the Triptorelin than in the Alarelin group (P < 0.05).
  
  
  CONCLUSIONS
  Alarelin and Triptorelin can achieve similar pituitary down-regulatory effects and clinical outcomes in IVF-ET when used in the long protocol of ovulation induction.
authors.affiliation: Center of Reproductive Medicine, The 181st Hospital of PLA, Guilin, Guangxi 541002, China. djl6341@21cn.com
authors.forename: Jin-Liang
authors.initials: JL
authors.lastname: Duan
authors.forename: Yuan-Hua
authors.initials: YH
authors.lastname: Jiang
authors.forename: Ying
authors.initials: Y
authors.lastname: Liu
authors.forename: Qiong-Fang
authors.initials: QF
authors.lastname: Zeng
authors.forename: Ya-Dan
authors.initials: YD
authors.lastname: Huang
mesh_terms: D000328:Adult; D004624:Embryo Transfer / Q000379:methods; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods; D007987:Gonadotropin-Releasing Hormone / Q000819:agonists* / Q000031:analogs & derivatives / Q000494:pharmacology*; D006801:Humans; D007247:Infertility, Female / Q000628:therapy*; D010062:Ovulation Induction / Q000379:methods*; D010902:Pituitary Gland / Q000187:drug effects; D017329:Triptorelin Pamoate / Q000494:pharmacology*
chemical_list: D017329:Triptorelin Pamoate; D007987:Gonadotropin-Releasing Hormone