- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03968549
Probiotics and Inflammatory Status in Patients With Heart Failure (PROBHF)
May 29, 2019 updated by: Fernando Bacal, University of Sao Paulo General Hospital
Study of the Importance of Intestinal Microbiota in Patients With Heart Failure - Randomized, Double-blind Study
Cachexia is a very common condition in patients with advanced heart failure (HF) and is considered a predictor of mortality.
Studies have been carried out in an attempt to discover the mechanisms that leads to cachexia in order to improve the therapies and the survival of these patients.
Some of these studies give the hypothesis that the gastrointestinal tract, more precisely the intestine, can collaborate with cachexia.
Some of these studies suggest that, the intestinal mucosa, due to hypoperfusion, becomes more permeable to some substances, as like endotoxins, being the lipopolysaccharide (LPS) one of them.
The circulating LPS can stimulate the increase of tumor necrosis alpha (TNF-alpha) further increasing the inflammation and, consequently, contributing to the worsening of prognosis.
The intestinal microbiota is also affected by hypoperfusion, contributing with increase of permeability.
As known, probiotics can help to maintain or recover the microbiota and maintain a healthy intestinal barrier.
In view of the importance of microbiota to inflammation in the prognosis of the patients and the performance of microbiota in maintenance of intestinal barrier, this study has as primary objective to verify the influence of supplementation of the probiotic Lactobacillus acidophilus (LA) in the lowering of serum levels of TNF-alpha in the patients with HF.
Study Overview
Status
Unknown
Conditions
Intervention / Treatment
Detailed Description
The present study will be a clinical trial compounded by two parallel arms, randomized, double-blind (researcher-patient), placebo-controlled, with patients with heart failure (HF), functional class according the New York Heart Association (NYHA) III and IV.
It will be included 58 patients, 29 will receive probiotics and 29 will receive placebo.
These patients will be accompanied during 6 months and should take one capsule every day during the study.
In the beginning of the study and at the end, venous blood sample will be collected of each patient for laboratory measurement of TNF alpha, interleukins 1,6 and 10, LPS, B-type natriuretic peptide (BNP) and C-reactive protein (CRP).
To establish the normality pattern of these markers studied, a control group, with healthy individuals, will be performed.An anthropometric evaluation will be performed with measurements of weigh, height, arm circumference, triceps skin fold.
According to nutritional status, it will be calculated the caloric and protein needs of each patient and, to monitor the consumption, in each consult will be applied the 24-hour food recall and calculated the consumption from it.
In order to measure the appetite of the patients, in each consult, an appetite questionnaire will be applied.
To statistical analysis, the test of Kolmogorov-Smirnov will be used to assess whether the distribution is normal for the quantitative variables.
If the variable follows normal distribution, it will be described as mean and standard deviation, otherwise, it will be described as median and interquartile range.
The groups will be compared using t-Student or Mann-Whitney tests.
The categorical variables will be presented descriptively with absolute and relative frequencies.
The association between categorical variables will be analyzed with chi square test or Fisher exact test or likelihood ratio test.
For the repeated measures, will be used the ANOVA test or Friedman test and Wilcoxon signs.
The analyzes will be performed according to the intent-to-treat principle and the two-tailed tests.
The value of p<0,5 will be considered statistically significant.
Study Type
Interventional
Enrollment (Anticipated)
58
Phase
- 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 Contact
- Name: Fernando Bacal, MD PhD
- Phone Number: (11) 2661-5482
- Email: fbacal@uol.com.br
Study Locations
-
-
-
São Paulo, Brazil
- Recruiting
- Fernando Bacal
-
Contact:
- Fernando Bacal
- Phone Number: (11) 2661-5482
- Email: fbacal@uol.com.br
-
-
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
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Patients with heart failure NYHA functional class III and IV;
- Medications optimized for at least 2 months;
- No hospitalizations for HF decompensated or acute myocardial infarction in the last 30 days;
- Have signed the Free and Informed Consent Form
Exclusion Criteria:
- Do not accept to participate in the study or do not signed the Free and Informed Consent Form
- Have used antibiotics and/or corticosteroids in the last 30 days;
- Clinical conditions that can affect the inflammatory profile such as inflammatory bowel disease, arthrosis, among others;
- Be pregnant;
- Have been submitted to a cardiac surgery in the last 6 months or other surgery in the last 3 months
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: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo
These patients will receive capsules containing vegetable oil and corn starch
|
Those patients in group Placebo will receive the capsules containing vegetable oil and corn starch and will need to take one of it everyday during the study.
|
Active Comparator: Probiotic
These patients will receive capsules containing Lactobacillus acidophilus
|
Those patients in group Probiotic will receive the capsules containing Lactobacillus acidophilus and will need to take one of it everyday during the study.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Effects of probiotics in serum levels of TNF-alpha
Time Frame: six months
|
Probiotics should improve serum levels of tumor necrosis alpha (TNF-alpha)
|
six months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Effects of probiotics in serum levels of lipopolysaccharide LPS (ng/mL)
Time Frame: six months
|
Probiotics should improve serum levels of LPS (ng/mL)
|
six months
|
Effects of probiotics in serum levels of interleukin 1 (IL 1) (pg/mL)
Time Frame: six months
|
Probiotics should improve serum levels of IL 1 (pg/mL)
|
six months
|
Effects of probiotics in serum level of interleukin 6 (IL 6) (pg/mL)
Time Frame: six months
|
Probiotics should improve serum levels of IL 6 (pg/mL)
|
six months
|
Effects of probiotics in serum levels of interleukin 10 (IL 10)(pg/mL)
Time Frame: six months
|
Probiotics should improve serum levels of IL 10 (pg/mL)
|
six months
|
Effects of probiotics in serum levels of B-type natriuretic peptide (BNP) (pg/mL)
Time Frame: six months
|
Probiotics should improve serum levels of BNP (pg/mL)
|
six months
|
Effects of probiotics in serum levels of C-reactive protein (CRP) (mg/L)
Time Frame: six months
|
Probiotics should improve serum levels of CRP (mg/L)
|
six months
|
Effects of probiotics in appetite
Time Frame: six months
|
Probiotics should improve the appetite
|
six months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Principal Investigator: Fernando Bacal, MD PhD, Heart Institute (InCor), University of Sao Paulo, Medical School
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 (Actual)
November 6, 2018
Primary Completion (Anticipated)
December 1, 2019
Study Completion (Anticipated)
August 31, 2020
Study Registration Dates
First Submitted
November 1, 2018
First Submitted That Met QC Criteria
May 29, 2019
First Posted (Actual)
May 30, 2019
Study Record Updates
Last Update Posted (Actual)
May 30, 2019
Last Update Submitted That Met QC Criteria
May 29, 2019
Last Verified
May 1, 2019
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- PROBHF
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
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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