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Clinical Trial Summary

Preterm birth (PTB) is the primary cause of infant death worldwide. It has been shown that a vaginal microbiota deplete in Lactobacillus species is a risk factor for preterm labour. Conversely a vaginal microbiota dominated by Lactobacillus crispatus appears to be protective for these adverse outcomes. A wide range of 'over the counter' Lactobacillus spp. containing products targeted at 'vaginal health' and formulated for vaginal administration are available, but most of them do not contain vaginal species of Lactobacillus. The primary aim of this study is to determine whether vaginal supplementation with L. crispatus CTV-05 is associated with colonisation.


Clinical Trial Description

Pregnant women at Queen Charlotte's and Chelsea Hospital and St Mary's Hospital London who are defined as being at a higher than background risk for preterm labour will be recruited into this study. Women at risk of pre-term labour will include those with either previous LLETZ, previous preterm birth, previous second trimester pregnancy loss or a combination of these indications.

As part of this interventional study, subjects will be offered supplementation with L. crispatus CTV-05. The preparation of LACTIN-V is administered vaginally using a specially designed applicator.

The primary aim of this study is to determine whether vaginal supplementation with L. crispatus CTV-05 is associated with colonisation. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03992534
Study type Interventional
Source Imperial College London
Contact Phillip Bennett, BSc PhD MD
Phone +442075942176
Email p.bennett@imperial.ac.uk
Status Recruiting
Phase Phase 1
Start date September 16, 2019
Completion date October 1, 2021

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