NCT05355571

Brief Summary

To investigate whether probiotic supplementation during the consumption of oral antibiotics can impact gastrointestinal responses and/or the regrowth of the gut microbiota.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2022

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 19, 2022

Completed
13 days until next milestone

First Posted

Study publicly available on registry

May 2, 2022

Completed
7 months until next milestone

Study Start

First participant enrolled

November 18, 2022

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 17, 2023

Completed
13 days until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2023

Completed
Last Updated

September 19, 2024

Status Verified

September 1, 2024

Enrollment Period

2 months

First QC Date

April 19, 2022

Last Update Submit

September 6, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Microbiological analysis of stool samples as a measure of abundance within the microbiota post antibiotic consumption.

    Stool samples will be streaked out onto specific agar to measure the viable abundance of specific bacteria and fungi including; Lactobacillus, Enterobacteria, Enterococci, Staphylococci, Yeast, Bifidobacteria and Bacteroides. Microbiological counts (Log10 CFU/g(Colony forming unit/g)) will then be analysed and compared.

    One month post antibiotic treatment/ probiotic supplementation

  • Next generation sequencing (NGS) analysis of stool samples as a measure of microbiome diversity and abundance within the microbiota post antibiotic consumption.

    Genomic DNA will be extracted from stool samples and subsequently run through Illumina MiSeq to produce sequencing data which can be used to analyse diversity (Alpha and Beta) changes in the microbiome along with changes in abundance of taxa.

    One month post antibiotic treatment/ probiotic supplementation

Secondary Outcomes (3)

  • Quality of life questionnaires to measure quality of life post probiotic supplementation

    One month post antibiotic treatment/ probiotic supplementation

  • Questionnaire of gastrointestinal health to measure gastrointestinal health post probiotic supplementation.

    One month post antibiotic treatment/ probiotic supplementation

  • Bowel habit diary to measure gastrointestinal health post probiotic supplementation.

    One month post antibiotic treatment/ probiotic supplementation

Study Arms (2)

Active

ACTIVE COMPARATOR

Participants will consume a probiotic containing lactic acid bacteria and Saccharomyces boulardii at a dose of 35 billion per day for 10 days alongside an oral antibiotic at standard dosage administered for fixed period

Dietary Supplement: LAB4 + Saccharomyces boulardii

Placebo

PLACEBO COMPARATOR

Participants will consume a placebo alongside an oral antibiotic at standard dosage administered for fixed period

Dietary Supplement: Placebo

Interventions

Probiotic containing lactic acid bacteria and Saccharomyces boulardii at a dose of 35 billion per day

Active
PlaceboDIETARY_SUPPLEMENT

Placebo

Placebo

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female, aged 18-65
  • Receiving a 5 to 10 day course of oral antibiotics
  • Willing to provide 3 faecal samples over the duration of the study
  • Willing to refrain from taking non-GP (general practitioner) prescribed antibiotics

You may not qualify if:

  • Consumed regular probiotic supplementation within the last 1 month prior to the study
  • Consumed any antibiotic within the last 3 months
  • Prescribed antibiotics for a gastrointestinal related issue
  • Diagnosed with diabetes
  • Are immunodeficient or undergoing immunosuppressive therapy
  • Diagnosed with arrhythmia, ventricular extrasystole, atrioventricular block or other cardiovascular disease deemed as a risk by study doctor
  • Diagnosed with a cardiovascular disease
  • Pregnancy or planning pregnancy
  • Diagnosed with a severe systemic disease e.g. cancer, dementia, advanced organ failure.
  • Unexplained loss of weight in recent months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Comac Medical

Sofia, Bulgaria

Location

Study Officials

  • Aleksandrina Panteleeva

    Comac Medical

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 19, 2022

First Posted

May 2, 2022

Study Start

November 18, 2022

Primary Completion

January 17, 2023

Study Completion

January 30, 2023

Last Updated

September 19, 2024

Record last verified: 2024-09

Data Sharing

IPD Sharing
Will not share

Locations