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Chronic Kidney DiseasePhase 4NCT01391468

Beneficial Effect of Probiotics on Chronic Kidney Disease

A Phase 4 study testing Probiotics and Cornstarch in people with Chronic Kidney Disease, run by China Medical University Hospital at 1 site in Taiwan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a randomized double blinded placebo control studies are performed in Chronic Kidney Disease (CKD) patients. After informed consent, intervention group receives probiotics containing 109 CFU B. bifidum, B.catenulatum, B. longum, and L.plantarm), while placebo group receives corn starch. Read more about this study

Who is it for?
Ages 18 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Chronic Kidney Disease
What is being tested?
Probiotics and Cornstarch
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
47 participants
Where
1 siteTaiwan
Study dates
Aug 2011to Dec 2013
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • receiving peritoneal dialysis for more than 3 months, at least 18 years of age, and GFR < 15 ml/min.
  • receiving hemodialysis dialysis for more than 3 months, at least 18 years of age, and GFR < 15 ml/min.
  • Stage 3 and 4 CKD patients

Who cannot join

  • active infectious conditions within the last 30 days,
  • pregnancy for female,
  • autoimmune disease e.g. SLE.,
  • cardiovascular events before.

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • China Medical University Hospital

    Taichung, 413

Other trials in Taiwan

About this study

This is a randomized double blinded placebo control studies are performed in Chronic Kidney Disease (CKD) patients. After informed consent, intervention group receives probiotics containing 109 CFU B. bifidum, B.catenulatum, B. longum, and L.plantarm), while placebo group receives corn starch. In the first year the investigators examine the 60 peritoneal dialysis (PD) patients, in the second year the investigators do the 60 hemodialysis (HD) patients, and in the third year the investigators do the 60 stage 3 and 4 CKD patients. Primary endpoint is cardiovascular event, gastrointestinal symptoms, peritonitis in PD patients, and progression of stage 3 and 4 CKD. Values are compared between the groups by unpaired t test. X2 testis used to compare proportions between the groups. Relative risk and the number needed to treat, both with 95% CI, are used to describe the treatment effect of probiotics. A p value less than 0•05 is regarded as statistically significant.

Read the detailed description

Chronic kidney disease (CKD) is a global health issue that has a substantial impact on affected individuals. The prognosis of dialysis patients is poor with 30 to 50 percent 5 year survival in nondiabetic patients and 25 percent in diabetics. Cardiovascular disease accounts for approximately half of death of dialysis patients Chronic inflammation, which is widely seen in long-term dialysis patients, is associated with malnutrition, atherosclerosis and an increased mortality risk. Inflammatory markers such as C-reactive protein (CRP),IL-6, Il-18 and TNF-α, are elevated in dialysis and can predict cardiovascular event and all-cause mortality.

Probiotics are microorganisms that have beneficial properties for the host. Three described benefits include suppression of growth or epithelial binding/invasion by pathogenic bacteria, improvement of intestinal barrier function and modulation the immune systems.

Several probiotics preparations induce protective cytokines, including IL-10, and suppress proinflammatory cytokines, such as TNF-α and IL-6. Intestinal microflora is deranged in hemodialysis (HD) patients as an increase in aerobic bacteria such as E. coli and a decrease in anaerobic bacteria such as Bifidobacterium. One study reported that oral administration of ifidobacterium longum in a gastroresistant seamless capsule decreases the the pre-HD serum levels of homocysteine and indoxyl sulfate. Another small-scale study from Japan showed that synbiotics containing lactobacilli and can reduce serum level of p-Cresol in HD patients. High-serum p-cresyl sulfate and indoxyl sulfate levels were associated with renal progression. Serum concentrations of p-cresol are independently associated with overall mortality and cardiovascular disease in HD patients. The aim of the study is 1. to evaluate the difference of intestinal microflora between CKD patients and healthy controls; 2. to evaluate whether the investigators can reduce cardiovascular events in CKD patients, and peritonitis in peritoneal dialysis (PD) patients, retard the progression of stage 3 and 4 CKD patients, and decrease circulating inflammatory markers(CRP, IL-6,IL-18, TNF-α), indoxyl sulfate, p-cresol and homocysteine after probiotics treatment.

Randomized double blinded placebo control studies are performed in CKD patients. After informed consent, intervention group receives probiotics containing 109 CFU B. bifidum, B.catenulatum, B. longum, and L.plantarm), while placebo group receives corn starch. In the first year the investigators examine the 60 PD patients, in the second year the investigators do the 60 HD patients,and in the third year the investigators do the 60 stage 3 and 4 CKD patients. Primary endpoint is cardiovascular event, gastrointestinal symptoms, peritonitis in PD patients, and progression of stage 3 and 4 CKD. Values are compared between the groups by unpaired t test. X2 testis used to compare proportions between the groups. Relative risk and the number needed to treat, both with 95% CI, are used to describe the treatment effect of probiotics. A p value less than 0·05 is regarded as statistically significant.

Being tested
Probiotics, Cornstarch
Medical subject headings
Renal Insufficiency, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ProbioticsDietary supplement

    intervention group receives probiotics containing 10E9 CFU B. bifidum, B. catenulatum, B. longgim, and L. plantarm in 6 months observations

  • CornstarchDietary supplement

    placebo will be given in 6 months

Study groups in NCT01391468
Study groupRoleWhat they receive
PlaceboPlacebo comparatorcornstarch
Receives: Dietary Supplement: Cornstarch
ProbioticsExperimentalprobiotics
Receives: Dietary Supplement: Probiotics

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. the Occurrence of Cardiovascular Event and Peritonitis Events

    Measured: 6 month follow-up

Secondary outcomes (1)
  1. Change of Gastrointestinal Symptoms at 6 Months

    The change in gastrointestinal symptom rating scale (min and maximum scores 0-45) after treatment. The total score is reported. The higher scale represents a worse outcome.

    Measured: 6 months follow-up

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Jul 2011 (estimated)
  2. Study startAug 2011
  3. Primary completionDec 2013
  4. Study completionDec 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
47 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01391468
Sponsor's protocol ID
DMR-99-IRB-308
Status last verified
Oct 2015
First submitted
8 Jul 2011
Last updated
3 Nov 2015
Data monitoring committee
Yes

Publications

  • Cooper TE, Khalid R, Chan S, Craig JC, Hawley CM, Howell M, Johnson DW, Jaure A, Teixeira-Pinto A, Wong G. Synbiotics, prebiotics and probiotics for people with chronic kidney disease. Cochrane Database Syst Rev. 2023 Oct 23;10(10):CD013631. doi: 10.1002/14651858.CD013631.pub2.

    PubMed 37870148

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Probiotics and Cornstarch in people with Chronic Kidney Disease, run by China Medical University Hospital at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Nov 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 24 Aug 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

the Occurrence of Cardiovascular Event and Peritonitis Events (time frame: 6 month follow-up). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01391468, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Nov 2015.

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