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  • Title: Use of Utrogestan during controlled ovarian hyperstimulation in normally ovulating women undergoing in vitro fertilization or intracytoplasmic sperm injection treatments in combination with a "freeze all" strategy: a randomized controlled dose-finding study of 100 mg versus 200 mg.
    Author: Zhu X, Ye H, Fu Y.
    Journal: Fertil Steril; 2017 Feb; 107(2):379-386.e4. PubMed ID: 27865446.
    Abstract:
    OBJECTIVE: To compare the clinical characteristics in a Utrogestan and hMG protocol with the use of different doses of Utrogestan in normally ovulating women undergoing in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) treatments. DESIGN: Prospective controlled study. SETTING: Tertiary-care academic medical center. PATIENT(S): A total of 150 infertile patients undergoing IVF/ICSI treatments. INTERVENTION(S): Utrogestan and hMG were administered simultaneously beginning on cycle day 3. The dose of Utrogestan was 100 mg/d in the study group and 200 mg/d in the control group. When the dominant follicles reached mature, 0.1 mg GnRH agonist was used for trigger. Viable embryos were cryopreserved in both protocols for later transfer. MAIN OUTCOME MEASURE(S): The primary outcome measure was the incidence of premature LH surge. Secondary outcomes included the embryo results and clinical pregnancy outcomes. RESULT(S): Consistent LH suppression was achieved during controlled ovarian hyperstimulation with Utrogestan at 100 mg, and the number of patients with profound LH suppression (LH <1.2 IU/L) in the low-dose group was significantly less than that in the high-dose group. The number of oocytes retrieved in the low-dose group was similar to that in the high-dose group (9.87 ± 5.77 vs. 10.25 ± 5.43). No significant differences were observed in the number of mature oocytes, viable embryos, clinical pregnancy rate, or implantation rate. CONCLUSION(S): Utrogestan at 100 mg is as effective as Utrogestan at 200 mg in reducing premature LH surge during controlled ovarian hyperstimulation. CLINICAL TRIAL REGISTRATION NUMBER: ChiCTR-OOC-14005277.
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