Comparison of tamoxifen and hormone replacement cycle (HRT) in frozen embryo transfer. A randomized controlled trial.

Objective: The use of frozen embryos in the treatment of infertility with assisted reproductive techniques has been increased. Different methods are used to prepare the endometrium for frozen embryo transfer (FET). The aim of this study was to compare pregnancy outcomes after treatment with tamoxifen and hormonal replacement therapy (HRT) in FET.

Comparison of the efficacy of sublingual, oral, and vaginal administration of misoprostol in the medical treatment of missed abortion during first trimester of pregnancy: A randomized clinical trial study.

Background: This study was aimed at comparing the efficacy of different routes of misoprostol administration, including sublingual, oral, and vaginal, on the induction of medical abortion in the first trimester of pregnancy.

Materials And Methods: This open-label, randomized clinical trial study was performed on 172 individuals in three parallel groups of vaginal, sublingual, and oral administration of misoprostol. The participants were randomized using permuted blocks of six.

Comparison of vaginal misoprostol, laminaria, and isosorbide dinitrate on cervical preparation and labor duration of term parturient: a randomized double-blind clinical trial.

Background: Cervical ripening plays an important role in successful labor induction.

Objective: This study aimed to compare the effects of misoprostol, laminaria tent, and isosorbide dinitrate (ISDN) on cervical ripening.

Methods: This double-blind three-armed clinical trial was conducted at Shahidan Mombini Teaching Hospital in Sabzevar, Iran, in 2016 on 96 singleton term pregnant women.