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CompletedNCT03310853Updated Feb 2, 2023

The Effect of Probiotics on Maintenance of Health in Pregnancy and Infants

A Phase 2 interventional study of Probiotic and Placebo in Pregnancy, sponsored by Lallemand Health Solutions. Completed at 1 site in Canada. Open to female participants aged 18 Years to 39 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-02-02.

Sponsored by Lallemand Health Solutions · Phase 2, Interventional, and Supportive care

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Phase
Phase 2
Study type
Interventional
Enrollment
180
Allocation
Randomized
Ages
18 Years to 39 Years
Sex
Female
01

Study summary

This phase 2 study evaluates the effect of perinatal use of probiotics on the number of diagnosed viral, bacterial and fungal infections in pregnant women and on the maintenance of a health pregnancy. In addition, the effect of probiotics intake during pregnancy and breastfeeding on the infant's overall health status will be evaluated.

Read the detailed description

Throughout pregnancy women undergo many biological changes, including alterations in their microbiota. These infections can exacerbate pregnancy complications and increase the risk of preeclampsia and preterm birth. The present study aims to evaluate the potential effects of perinatal use of probiotics on the number of diagnosed viral, bacterial and fungal infections in pregnant women and on the maintenance of a healthy pregnancy. Potential infections include but are not limited to influenza/colds, bacterial vaginosis, mastitis, candidiasis, urinary tract infection and gingivitis. Additionally, the benefits of probiotic intake by the mother on the infant during pregnancy and breastfeeding will be evaluated.

02

Conditions studied

  • Pregnancy

Keywords

  • probiotics
  • infections
  • bacterial vaginosis
03

In context

Infections

2,094 studies on the registry are indexed under Infections; 364 are open to participants now.

This study's enrollment of 180 is above the median of 113 across 1,304 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

Lallemand Health Solutions is the lead sponsor of 18 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 39 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy pregnant women
  • Less than 28 weeks of gestation (3rd trimester)
  • ≥18 to \<40 years old
  • Singleton gestation
  • Availability and willingness to come in for morning visits
  • Planning to breastfeed
  • Willing to complete questionnaires, records, and diaries associated with the study and to complete all clinical visits
  • Willing to discontinue consumption of fermented foods (e.g. foods that contain probiotics such as Kefir, pickles, etc.) or probiotics (e.g. yogurts with live active cultures or probiotic supplements)
  • Able to provide

Exclusion criteria

Exclusion Criteria:

  • Known gestational diabetes or diabetes type 1 or 2
  • Known blood/bleeding disorders
  • Known liver and kidney disorders
  • Known unstable cardiovascular diseases
  • Women with a personal history of or currently diagnosed with preeclampsia
  • Suffering from neurological diseases (e.g. Alzheimer's disease, Parkinson's disease, epilepsy, etc.)
  • Suffering from gastrointestinal diseases (e.g. gastric ulcers, Crohn's disease, ulcerative colitis, etc.)
  • Current symptoms of depression or experienced depressive symptoms in the past 2 years
  • Maternal history of second trimester loss
  • Women diagnosed Positive or with or C
  • Known fetal abnormality
  • Daily use of probiotic product within 2 weeks of the screening visit. The potential participant could be eligible to participate after a 2-week
  • Use of any antibiotic drug within 1 month of screening. The potential participant could be eligible to participate after a 2-week wash-out period
  • Smoking, alcohol consumption or drug use during pregnancy
  • History of alcohol or substance abuse six months prior to screening
  • Allergies to milk, soy, or yeast
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

05

Study design

Phase
Phase 2
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
180 participants (actual)

Study arms

  • Experimental
    Probiotic

    Combination of two probiotic strains in one capsule

    Dietary Supplement: Probiotic

  • Placebo comparator
    Placebo

    Non active ingredients in a capsule

    Other: Placebo

Interventions

  • Dietary supplementProbiotic

    Dosing regimen of one capsule daily for a maximum of 18 weeks

  • OtherPlacebo

    Dosing regimen of one capsule daily for a maximum of 18 weeks

06

What researchers measure

Primary outcomes

  1. Number of diagnosed infections in pregnant women

    This includes any viral, bacterial and fungal infection (e.g. bacterial vaginosis, candidiasis, urinary tract infection, mastitis, cold, flu, gingivitis, etc.). A vaginal swab and saliva sample will be taken at every visit on site throughout pregnancy. The vaginal swab will be used for the detection of Bacterial Vaginosis and Candidiasis. Other required swab samples will be collected if an infection occurs (e.g. vaginal, mouth, throat, nose, etc.). If an infection is suspected by a participant in-between a scheduled visit, the participant will come on site to be checked by a doctor. If the participant is subsequently diagnosed with an infection, a saliva sample will need to be taken at this time.

    Time frame: up to 12 weeks

Secondary outcomes

  1. Levels of glucose, insulin, triglycerides and iron

    Assessed via blood sample throughout the pregnancy

    Time frame: Measured 2 times up to 12 weeks

  2. Vaginal mycobiota

    Vaginal microbiome which includes bacteria, fungus and potentially other eukaryotic micro-organisms such as parasites or viruses. To be assessed with a vaginal swab during pregnancy and after delivery.

    Time frame: Measured 3 times up to 18 weeks

  3. Inflammatory markers

    Assessing levels of both pro- and anti- inflammatory markers in the mother during pregnancy (through stool and blood samples) and after delivery (through breast milk sample).

    Time frame: Measured up to 3 times in the 18 week time frame

  4. Vaginal microbiota

    Effects of the probiotic interventions on overall microbiota composition in the mother will be assessed. In addition, recovery of the probiotic strains in the vaginal samples will be assessed.

    Time frame: Measured 3 times up to 18 weeks

  5. Premature rupture of membranes (PROM)

    Incidence of PROM on the probiotic versus the group

    Time frame: Measured 1 time at week 12

  6. Levels of secretory immunoglobulin A (sIgA) in the mother

    Assessed via saliva samples throughout pregnancy and a breast milk sample after delivery.

    Time frame: Measured up to 4 times in the 18 week time frame

  7. Levels of secretory immunoglobulin A (sIgA) in the infant

    Assessed via stool sample after birth.

    Time frame: Measured 1 time up to18 weeks

  8. Gut microbiota in the mother

    Effects of the probiotic interventions on overall microbiota composition will be assessed. In addition, recovery of the probiotic strains in the stool samples will be assessed.

    Time frame: Measured 3 times up to 18 weeks

  9. Gut microbiota in the infant

    Effects of the probiotic interventions on overall microbiota composition will be assessed. In addition, recovery of the probiotic strains in the stool samples will be assessed.

    Time frame: Measured 1 time up to 18 weeks

  10. Stool frequency and consistency in the mother

    Assessed with the Bristol Stool Scale

    Time frame: Self-reported, daily up to 18 weeks

  11. Stool frequency and pattern in the infant

    Assessed with the Amsterdam Infant Stool Scale

    Time frame: Self-reported by the mother, daily up to 4-6 weeks

  12. Weight in the mother

    To assess change in body weight

    Time frame: Measured 3 times up to 18 weeks. Pre-pregnancy weight will also be noted via information collection on a demographic questionnaire.

  13. Breast milk microbiota

    Effects of the probiotic interventions on overall microbiota composition will be assessed. In addition, recovery of the probiotic strains in the breast milk samples will be assessed.

    Time frame: Measured 1 time up to 18 weeks

  14. Post-Partum Depression

    To be assessed with the Edinburgh Postnatal Depression Scale

    Time frame: Measured 2 time up to 18 weeks

  15. Infant's health status - NEC

    To assess the probability of an infant with NEC

    Time frame: Measured 1 time up to 18 weeks.

  16. Anthropometric measurements

    Crown-heel length and head circumference

    Time frame: Measured 1 time up to 18 weeks. The infant's anthropometric measurements at birth will also be noted.

  17. Weight in the infant

    To assess change in body weight

    Time frame: Measured 2 times up to 18 weeks.

  18. Crying time in the infant

    To assess the mean daily crying time of infants

    Time frame: Self-reported by the mother, daily up to 4-6 weeks

  19. Colic in the infant

    To asses the probability of an infant with colic

    Time frame: Self-reported by the mother, daily up to 4-6 weeks

  20. Sleep in the infant

    Number of total hours and number of consecutive hours

    Time frame: Self-reported by the mother, daily up to 4-6 weeks

  21. Number of infections

    To assess the number of infections

    Time frame: Self-reported by the mother, daily up to 4-6 weeks

  22. Skin diseases or conditions

    Skin diseases/conditions as well as the child's overall health status 1 year after birth will be assessed.

    Time frame: 1 year follow up phone call

  23. Infant's health status - jaundice

    To assess the probability of an infant with jaundice

    Time frame: Measured 1 time up to 18 weeks.

  24. Infant's health status - Hyperbilirubinemia

    To assess the probability of an infant with Hyperbilirubinemia

    Time frame: Measured 1 time up to 18 weeks.

07

Study locations

1 site
  • Clinique OVO
    Montreal, Quebec, Canada
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2017 to primary completion in May 2022, 54 months.

Of 42 industry-sponsored phase 2 interventional studies under Infections, half reached primary completion within 13 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 18. This study's 54 months is above that.

Counting every sponsor, half of 77 studies reached it within 16 months; a quarter within 10 and three quarters within 47.

Infections covers many different conditions, not one, so the studies compared here vary widely. Read these figures as a rough guide.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 28, 2017
First posted
Oct 16, 2017
StartActual
Oct 23, 2017
Primary completionActual
May 20, 2022
CompletionActual
May 20, 2022
Last update
Feb 2, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 2, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03310853
Lead sponsor
Lallemand Health Solutions
Collaborators
Clinique Ovo
Responsible party
Sponsor
First posted
Oct 16, 2017
Start date
Oct 23, 2017
Primary completion
May 20, 2022
Completion
May 20, 2022
Last update
Feb 2, 2023

Study contacts

Jacques Kadoch, MD
principal investigator · Clinique Ovo

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Probiotic

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