scholarly journals Vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix: a multicenter, randomized, double-blind, placebo-controlled trial

2011 ◽  
Vol 38 (1) ◽  
pp. 18-31 ◽  
Author(s):  
S. S. Hassan ◽  
R. Romero ◽  
D. Vidyadhari ◽  
S. Fusey ◽  
J. K. Baxter ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Controlled Trial ◽  
Double Blind ◽  
Short Cervix ◽  
Double Blind Placebo ◽  
Vaginal Progesterone

Progesterone vaginal gel for the reduction of recurrent preterm birth: primary results from a randomized, double-blind, placebo-controlled trial

2007 ◽  
Vol 30 (5) ◽  
pp. 687-696 ◽  
Author(s):  
J. M. O'Brien ◽  
C. D. Adair ◽  
D. F. Lewis ◽  
D. R. Hall ◽  
E. A. DEfranco ◽  
...  
Keyword(s):  
Preterm Birth ◽  
Controlled Trial ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Vaginal Gel

scholarly journals A randomized controlled trial on the use of pessary plus progesterone to prevent preterm birth in women with short cervical length (P5 trial)

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Rodolfo C. Pacagnella ◽  
◽  
Ben W. Mol ◽  
Anderson Borovac-Pinheiro ◽  
Renato Passini ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Preterm Birth ◽  
Controlled Trial ◽  
Transvaginal Ultrasound ◽  
Cervical Length ◽  
Categorical Variables ◽  
Continuous Variables ◽  
Short Cervix ◽  
Randomized Controlled ◽  
Vaginal Progesterone

Abstract Background Preterm birth is the leading cause of mortality and disability in newborn and infants. Having a short cervix increases the risk of preterm birth, which can be accessed by a transvaginal ultrasound scan during the second trimester. In women with a short cervix, vaginal progesterone and pessary can both reduce this risk, which progesterone more established than cervical pessary. The aim of this study is to compare the use of vaginal progesterone alone versus the association of progesterone plus pessary to prevent preterm birth in women with a short cervix. Methods This is a pragmatic open-label randomized controlled trial that will take place in 17 health facilities in Brazil. Pregnant women will be screened for a short cervix with a transvaginal ultrasound between 18 0/7 until 22 6/7 weeks of gestational age. Women with a cervical length below or equal to 30 mm will be randomized to the combination of progesterone (200 mg) and pessary or progesterone (200 mg) alone until 36 + 0 weeks. The primary outcome will be a composite of neonatal adverse events, to be collected at 10 weeks after birth. The analysis will be by intention to treat. The sample size is 936 women, and a prespecified subgroup analysis is planned for cervical length (= < or > 25 mm). Categorical variables will be expressed as a percentage and continuous variables as mean with standard deviation. Time to delivery will be assessed with Kaplan-Meier analysis and Cox proportional hazard analysis. Discussion In clinical practice, the combination of progesterone and pessary is common however, few studies have studied this association. The combination of treatment might act in both the biochemical and mechanical routes related to the onset of preterm birth. Trial registration Brazilian Clinical Trial Registry (ReBec) RBR-3t8prz, UTN: U1111–1164-2636, 2014/11/18.

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