Administration of Probiotics in Cirrhotic Patients Listed for Liver Transplantation

July 28, 2016 updated by: Medical University of Warsaw

An Attempt to Optimize the Results of Liver Transplantation With Administration of Probiotics.

The aim of this study was to evaluate the impact of the administration of probiotics on outcomes of patients qualified for liver transplantation, both in the pre-transplant period and in the early postoperative period.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Gut microflora plays an important role in the pathogenesis of complications of liver cirrhosis, mainly due to microbial translocation. According to several studies, administration of probiotics in patients with cirrhosis has positive effect on minimal hepatic encephalopathy. The aim of this study was to evaluate the impact of probiotics administration on outcomes of patients qualified for liver transplantation, both in the pre-transplant period and in the early postoperative period. This study will be performed on 200 patients randomized into the probiotic and placebo groups. Daily administration of either probiotics or placebo will be continued from the date of inclusion in the study until the date of liver transplantation. A quantitative and qualitative analyses of faecal microflora will be performed in each patient before and after 10 week period (or shorter, depending on the time on the waiting list) of administration of either probiotic or placebo. Microbiological analyses of air samples from patients' home environment will be performed in each case. Both groups of patients will be compared with respect to primary and secondary outcome measures.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
55

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Poland
    • Mazowieckie
      • Warsaw, Mazowieckie, Poland, 02-097
        • Department of General, Transplant and Liver Surgery, Medical University of Warsaw

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Liver cirrhosis
  • Active status on the waiting list for liver transplantation
  • Confirmed etiology of liver disease

Exclusion Criteria:

  • Malignancy
  • Human Immunodeficiency Virus infection
  • Immunosuppressive treatment prior to liver transplantation
  • Cystic fibrosis
  • Creatinine clearance rate < 50 mL/min

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Probiotic
Capsules with 3x10^9 colony forming units (Lactococcus lactis PB 411 - 50%; Lactobacillus casei PB 121 - 25%; Lactobacillus acidophilus PB 111 - 12,5%; Bifidobacterium bifidum PB 211 - 12,5%). 1 capsule a day from inclusion until liver transplantation
Dietary supplement: Probiotic
Capsules with 3x10^9 colony forming units of: Lactococcus lactis PB 411 (50%), Lactobacillus casei PB 121 (25%), Lactobacillus acidophilus PB 111 (12,5%), Bifidobacterium bifidum PB 211 (12,5)
Placebo Comparator: Placebo
Placebo, 1 capsule a day from inclusion until the date of liver transplantation
Dietary supplement: Placebo
Placebo, 1 capsule a day from inclusion until the date of liver transplantation

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
All-cause postoperative mortality
Time Frame: 90 days after the date of liver transplantation
90 days after the date of liver transplantation
Postoperative infection
Time Frame: 30 days from the date of liver transplantation
30 days from the date of liver transplantation

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Mortality on the waiting list
Time Frame: From the date of inclusion until the date of liver transplantation
From the date of inclusion until the date of liver transplantation
Infections in the pre-transplantation period
Time Frame: From the date of inclusion until the date of transplantation
From the date of inclusion until the date of transplantation
Primary non-function after liver transplantation
Time Frame: 14 days after the date of liver transplantation
14 days after the date of liver transplantation
Changes in model for end-stage liver disease score
Time Frame: From the date of inclusion until the date of transplantation
From the date of inclusion until the date of transplantation
Changes in Child-Turcotte-Pugh class
Time Frame: From the date of inclusion until the date of transplantation
From the date of inclusion until the date of transplantation
Number of hospital admissions due to infections in the pre-transplantation period
Time Frame: From the date of inclusion until the date of transplantation
From the date of inclusion until the date of transplantation
Number of hospital admission due to complications of liver cirrhosis in the pre-transplantation period
Time Frame: From the date of inclusion until the date of transplantation
From the date of inclusion until the date of transplantation
Serum activity of transaminases on the first 5 postoperative days
Time Frame: 5 days after the date of liver transplantation
5 days after the date of liver transplantation
Serum bilirubin concentration in the first 5 postoperative days
Time Frame: 5 days after the date of liver transplantation
5 days after the date of liver transplantation
International normalized ratio values during the first 5 postoperative days
Time Frame: 5 days after the date of liver transplantation
5 days after the date of liver transplantation
Change in model for end-stage liver disease score in the pre-transplantation period
Time Frame: 10 weeks
To be assessed if the period between inclusion in the study and liver transplantation would not be shorter than 10 weeks
10 weeks
Change in Chil-Turcotte-Pugh class in the pre-transplantation period
Time Frame: 10 weeks
To be assessed if the period between inclusion in the study and liver transplantation would not be shorter than 10 weeks
10 weeks

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes in faecal microflora
Time Frame: 10 weeks
Differences in the number of colony forming units in 1 g of stool for particular bacterial and fungal species after 10 weeks of probiotic/placebo administration
10 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Medical University of Warsaw

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Ministry of Science and Higher Education, Poland

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Michał Grąt, M.D., Medical University of Warsaw, Department of General, Transplant and Liver Surgery
  • Study Chair: Marek Krawczyk, Professor, Medical University of Warsaw, Department of General, Transplant and Liver Surgery

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 23, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 27, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 28, 2012

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 29, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 28, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 1WB/3DG1

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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