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Comparison of leuprolide acetate and triptorelin in assisted reproductive technology cycles: a prospective, randomized study.

Author(s): Orvieto R, Kerner R, Krissi H, Ashkenazi J, Ben Rafael Z, Bar-Hava I

Affiliation(s): Department of Obstetrics and Gynecology, Rabin Medical Center, Petah Tiqva, Israel.

Publication date & source: 2002-12, Fertil Steril., 78(6):1268-71.

Publication type: Clinical Trial; Randomized Controlled Trial

OBJECTIVE: To compare the use of two depot GnRH-a, leuprolide and triptorelin, in long-suppression GnRH-a protocols. DESIGN: Prospective, randomized study. SETTING: An IVF unit of an academic medical center.Fifty-two women who underwent controlled ovarian hyperstimulation and IVF. INTERVENTION(S): Patients were prospectively randomized to receive 3.75 mg depot formulations of either leuprolide or triptorelin on days 21-23 of the menstrual cycle. Stimulation with gonadotropins was initiated after pituitary desensitization was achieved. MAIN OUTCOME MEASURE(S): The stimulation pattern and cycle outcomes were compared between the two groups. RESULT(S): Twenty-six patients were included in each group. No significant differences were observed in the patient age, estrogen, and P levels on day of hCG administration, gonadotropin dosage, number of oocytes retrieved, fertilization rate, percentage of high-quality embryos, and number of embryos transferred. However, significantly higher clinical implantation and pregnancy rates were found in the leuprolide group compared with the triptorelin group. CONCLUSION(S): A depot preparation of leuprolide is associated with higher implantation and pregnancy rates than a depot preparation of triptorelin when it is used in the midluteal phase as part of the long-suppression GnRH-a protocol in IVF.

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