ClinicalTrials.gov record

Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Oral Probiotic Supplementation on Group B Strep (GBS) Rectovaginal Colonization in Pregnancy

ClinicalTrials.gov ID: NCT01479478

Public ClinicalTrials.gov record NCT01479478. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

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ClinicalTrials.gov public records Last synced Jul 22, 2026, 5:45 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Oral Probiotic Supplementation and Group B Streptococcus Rectovaginal Colonization in Pregnant Women: a Randomized Double-blind Placebo-controlled Trial.

Study identification

NCT ID: NCT01479478
Recruitment status: Completed
Study type: Interventional
Phase: Not applicable
Lead sponsor: Stanford University; Other
Enrollment: 251 participants

Conditions and interventions

Conditions

Interventions

Placebo Drug
Probiotic dietary supplement Dietary Supplement

Drug · Dietary Supplement

Eligibility (public fields only)

Age range: 18 Years to 55 Years
Sex: Female
Healthy volunteers: Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Oct 31, 2011
Primary completion: Jul 25, 2017
Completion: Jul 25, 2017
Last update posted: Aug 19, 2018

2011 – 2017

United States locations

U.S. sites: 3
U.S. states: 1
U.S. cities: 3

Facility	City	State	ZIP	Site status
Aptos Women's Health Center	Aptos	California	95003	—
Dominican Hospital	Santa Cruz	California	95065	—
Stanford University School of Medicine/Lucile Packard Children's Hospital	Stanford	California	94305	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT01479478, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Aug 19, 2018 · Synced Jul 22, 2026

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01479478 live on ClinicalTrials.gov.

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