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Fecal Recovery of the Probiotic Bacteria Lactobacillus Rhamnosus GG (LGG) and Bifidobacterium Animalis Subspecies Lactis BB-12 (BB-12) in Healthy Humans Following Daily Consumption of a Probiotic Supplement

Randomized, Two Arm, Parallel Group, Open Label, Single Center Prospective Study of the Fecal Recovery of Lactobacillus Rhamnosus GG (LGG) and Bifidobacterium Animalis Subspecies Lactis (BB-12) in Healthy Humans Following Daily Consumption of ProNutrients Probiotic Powder Sachet

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01757054
Acronym
LGG BB-12
Enrollment
27
Registered
2012-12-28
Start date
2013-02-28
Completion date
2013-10-31
Last updated
2013-10-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fecal Analysis

Keywords

probiotic, LGG, BB-12, fecal recovery, healthy subjects

Brief summary

The main hypothesis of this study is that there will be a significant increase of Lactobacillus rhamnosus GG (LGG) and Bifidobacterium lactis (BB-12) in the stool of healthy humans following daily consumption of a probiotic supplement containing these specific strains of probiotic bacteria.

Detailed description

To demonstrate recovery of live probiotic bacteria in the stool.

Interventions

DIETARY_SUPPLEMENTProNutrients Probiotic

Dosage is 1 individually wrapped packet (1 gram) containing probiotic powder per day for 21 days

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

Are between 18-70 years of age. Have regular bowel movements. Are willing and able to attend study visits, undergo limited blood and urine testing, take the nutritional supplement according to the instructions provided. Are willing to collect four stool specimens and bring them to the study site.

Exclusion criteria

Are unwilling to follow the dietary guidelines of the study. Are lactose-intolerant or have allergies to milk or wheat. Have had drug or alcohol problems within the previous year. Are or plan to become pregnant over the next 3 months.

Design outcomes

Primary

MeasureTime frameDescription
Change in fecal concentration of both LGG and BB-12 by quantitative culture with confirmatory PCR at baseline and 3 weeksBaseline, 3 weeksPre- to post-supplementation changes in fecal concentration of both LGG and BB-12 by quantitative culture with confirmatory PCR

Secondary

MeasureTime frameDescription
Change in fecal concentration of both LGG and BB-12 by quantitative culture with confirmatory PCR at baseline and 2 weeksBaseline, 2 weeksPre- to post-supplementation changes in fecal concentration of both LGG and BB-12 by quantitative culture with confirmatory PCR
Change in fecal concentration of both LGG and BB-12 by quantitative PCR (qPCR) at baseline and 3 weeksBaseline, 3 weeksPre- to post-supplementation changes in fecal concentration of both LGG and BB-12 by quantitative PCR (qPCR)
Change in fecal concentration of both LGG and BB-12 by quantitative culture with confirmatory PCR and qPCR in probiotic compared to control group at baseline and 3 weeksBaseline, 3 weeksPre- to post-supplementation changes in fecal concentration of both LGG and BB-12 by quantitative culture with confirmatory PCR and qPCR in probiotic compared to control group
Change in fecal concentration of both LGG and BB-12 by quantitative culture with confirmatory PCR and qPCR in probiotic compared to control group at baseline and 2 weeksBaseline, 2 weeksPre- to post-supplementation changes in fecal concentration of both LGG and BB-12 by quantitative culture with confirmatory PCR and qPCR in probiotic compared to control group
Change in fecal concentration of LGG and BB-12 by both quantitative culture with confirmatory PCR and qPCR at baseline, 3 weeks, and 28 days post supplementationBaseline, 3 weeks, 28 days follow upPost-supplementation fecal concentration of LGG and BB-12 by both quantitative culture with confirmatory PCR and qPCR compared to baseline and 3 week supplementation values
Change in fecal concentration of both LGG and BB-12 by quantitative PCR (qPCR) at baseline and 2 weeksBaseline, 2 weeksPre- to post-supplementation changes in fecal concentration of both LGG and BB-12 by quantitative PCR (qPCR)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026