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. 2016 Jul-Sep;10(2):162-8.
doi: 10.22074/ijfs.2016.4905. Epub 2016 Jun 1.

Comparison of Risk of Preterm Labor between Vaginal Progesterone and17-Alpha-Hydroxy-Progesterone Caproate in Women with Threatened Abortion: A Randomized Clinical Trial

Abootaleb Beigi  1 , Arezoo Esmailzadeh  1 , Reyhane Pirjani  1
Affiliations

Comparison of Risk of Preterm Labor between Vaginal Progesterone and17-Alpha-Hydroxy-Progesterone Caproate in Women with Threatened Abortion: A Randomized Clinical Trial

Abootaleb Beigi et al. Int J Fertil Steril. 2016 Jul-Sep.

Abstract

Background: Threatened miscarriage is a common complication in pregnancy that leads to adverse pregnancy outcomes such as preterm labor. This study aimed to compare the vaginal progesterone (Cyclogest) versus 17-alpha-hydroxyprogesterone caproate (Proluton) on preventing preterm labor in pregnant women with threatened abortion at less than 34 weeks' gestational age.

Materials and methods: This balanced randomized, double-blind, single-center controlled clinical trial included 190 women with threatened abortion. They were then randomly allocated into Cyclogest (n=95) and 17-alpha-hydroxyprogesterone caproate (Proluton, n=95) groups. Interested outcome was preterm labor less than 34 weeks. The Pearson chi-square and Student's t test were used to compare two groups. The data were analyzed by Stata software version 13.

Results: The risks of preterm labor less than 34 weeks in Proluton and Cyclogest groups were 8.6 and 6.52%, respectively. There was no significant difference for risk of preterm labor less than 34 weeks [relative ratio (RR): 1.31, 95% confidence interval (CI): 0.47- 3.66, P=0.59] between two groups.

Conclusion: Risk of preterm labor in the vaginal progesterone group and 17-alpha-hydroxyprogesterone caproate group in pregnant women with threatened abortion is the same (

Registration number: IRCT2014123120504N1).

Keywords: 17-Alpha-Hydroxyprogesterone Caproate; Premature Labor; Progesterone; Threatened Abortion.

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