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Effect of Probiotics on the Preterm Delivery Rate in Pregnant Women at High Risk for Preterm Birth — PROPEV  

Preterm Birth Clinical Trial

Official title:
Effect of Probiotics on the Preterm Delivery Rate (< 37 Weeks) in Pregnant Women at High Risk for Preterm Birth (Pregnant Women With Threatened Preterm Labour): PROPEV TRIAL Protocol

Clinical Trial Summary

Preterm birth (PB) continues to be the main cause of perinatal morbidity and mortality, with emotional and economic consequences. Despite improvements in health, PB prevalence remains stable, possibly due to complex causes such as maternal age, stress, multiparity, etc. Shortening of the uterine cervix in early stages of gestation is a risk factor for PB. The presence of abnormal vaginal microbiota in the early stages of pregnancy is als a risk factor for PB. However, no studies have analysed the impact of probiotics (live microorganisms which, in adequate amounts, confer a health benefit on the host) on the PB in high-risk PB patients (pregnant women with threatened preterm delivery, i.e., uterine contractions and cervical shortening, with a 30% PB risk before 34 weeks, and 50% PB prior to 37 weeks (> 6-10% PB). Similarly, the effect of probiotics on vaginal flora dominated by lactic acid-producing bacteria could be analysed.

Clinical Trial Description

Hypothesis - Pregnant women with threatened preterm labour (TPL) will present vaginal microbiome different from those without TPL. - Treatment with probiotics will modify the vaginal microbioma of pregnant women with TPL. - The PB rate before 37 weeks in pregnant women with TPL who have received probiotics since their diagnosis will be reduced by at least 30%. Goals - To correlate the use of probiotics of pregnant women with TPL with the PB rate before 37 weeks. - To ascertain the PB rate before 28, 30, 32 and 34 weeks in both groups. - To assess neonatal morbidity between both groups. Methods Prospective, randomised, longitudinal, prospective, double-blind study. Relevance This study will determine whether the use of probiotics in pregnant women with TPL is associated with a lower risk of PB before 37 weeks. If so, it would allow us to act on the tertiary prevention of PB and treatment of TPL, the main cause of perinatal morbidity and mortality in our setting. It will also facilitate understanding of the pathophysiology of PB, influence of vaginal microbiota and the mechanism of action of probiotics. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03689166
Study type Interventional
Source Maternal-Infantil Vall d´Hebron Hospital
Contact
Status Completed
Phase N/A
Start date October 23, 2017
Completion date June 16, 2022
View Details
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