IBSPhase 4IBS-DNCT01667627
Probiotic in Irritable Bowel Syndrome (IBS) Patients With Diarrhea
A Phase 4 study testing Bio-25 in people with IBS, run by Tel-Aviv Sourasky Medical Center at 1 site in Israel.
Trial summary
We present the study design of a clinical trial designed to assess the clinical effects of the multispecies probiotic combination "BIO-25" in IBS-D patients. To this aim the primary endpoints of the study will be improvement in abdominal pain and stool consistency. Read more about this study
- Who is it for?
- Ages 18 to 70 years, women only
- Conditions the study is for
- IBS
- What is being tested?
- Bio-25
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 107 participants
- Where
- 1 siteIsrael
- Study dates
- Jan 2014to Apr 2015
- Phase
- Phase 4
- Are there results?
- None posted in the registry
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 70 years
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- A diagnosis of IBS-D according to the Rome III criteria, agreement to participate and the ability to sign an informed consent. Moreover, the definition of inclusion criteria is based on the FDA Draft Guidance for Clinical Evaluation of Products (add ref here). Over the two week run-in period:
- Pain Intensity: weekly average of worst abdominal pain in past 24 hours score of ≥ 3.0 on a 0 (no pain at all) to 10 (worst possible pain) point scale
- Stool Consistency: ≥30% of days/week with at least one stool ≥6 using the Bristol Stool Score (BSS, Fig. 1) (ref).
Who cannot join
- 1) Hyperthyroidism, 2) celiac disease 3) pregnancy, 4) other gastrointestinal diagnoses that might interfere with the study (e.g. active peptic disease, inflammatory bowel disease), 5) a history of malignancy that might, to the best judgment of the doctor, interfere with the study, 6) any infectious or inflammatory disease within the last month, 7) active medically treated asthma, 8) baseline levels of HsCRP > 10mg/liter, 9) steroid treatment for any indication, 10) fecal incontinence, and 11) treatment with probiotics or antibiotics of any kind within the last 4 weeks, 11) Diabetes.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Double-blind, Placebo-controlled Study to Assess the Effect of Probiotic on Symptom Relief and Indices of Micro-inflammation and Cholinergic Status in IBS Patients With Diarrhea.
We present the study design of a clinical trial designed to assess the clinical effects of the multispecies probiotic combination "BIO-25" in IBS-D patients. To this aim the primary endpoints of the study will be improvement in abdominal pain and stool consistency. The study will also be designed and powered to investigate the effect of the probiotic BIO-25 on the putative inflammation-associated parameters related to microinflammation in IBS, using postulated improvements in Hs-CRP, and calprotectin as markers of that effect. Additional aims of the study will examine the possible effect of probiotic BIO-25 on the cholinergic status.
Read the detailed description
Probiotic treatment in IBS is safe and effective. Probiotics have been shown to improve the anti-inflammatory/proinflammatory ratio, and may also improve intestinal motility, and the bacterial composition of the intestines. There is a substantial body of evidence in support of the use of probiotics in IBS. Probiotics appear to be particularly effective in the reduction of abdominal bloating and discomfort. The strains of the multispecies probiotic combination (BIO-25 LR) were tested and found to be beneficial in well-designed studies of IBS patients. Patients with post-infectious IBS, as well as many patients with "classic" IBS, manifest a low-grade inflammatory state that may be associated with visceral hypersensitivity and impaired motility. Probiotics may suppress this low-grade inflammation. In a recent study we found that highly sensitive CRP (hs-CRP), a serum marker of micro-inflammation, was significantly higher in patients with diarrhea-predominant IBS than healthy controls, although within normal limits in both groups. Thus, hs-CRP may serve as a marker of this low-grade, sub-clinical inflammation. If treatment with probiotic reduces the degree of low-grade inflammation in IBS, the improvement may be reflected in reduced hs-CRP levels. This study can contribute to our understanding of the pathophysiology of IBS and provide further evidence for the effectiveness of probiotic in its treatment.
- Conditions
- IBS
- Being tested
- Bio-25, Placebo
- Keywords
- IBS, Probiotic, hs-CRP, Cholinergic status, Micro-inflammation
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Bio-25Dietary supplement
Also called Probiotic
Each capsule of the multispecies probiotic combination Bio-25 consists of 25 billion live bacteria.
Each type of bio-25 contains billions of live lactic acid bacteria in defined ratios of lyophilized Bifidobacterium breve, Bifidobacterium longum, Bifidobacterium infantis, Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus paracasein, Lactobacillus casei, Bifidobacterium bifidum,Lactobacillus lactis, Lactobacillus rhamnosus,and Streptococcus thermophilus.
PlaceboOther
Identical placebo
| Study group | Role | What they receive |
|---|---|---|
| BIO-25, Probiotic-mixture | Active comparator | Two capsules a day. Receives: Dietary Supplement: Bio-25 |
| Placebo | Placebo comparator | Identical to the Bio-25 capsule: same taste, same colour, same appearance Receives: Other: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Symptom relief (abdominal pain and stool consistency)
Abdominal pain intensity, stool consistency, will be assessed by visual analogue scales (VAS) with scales from 0 (no symptom at all) to 10 (the worst possible symptom.
The definition of treatment responders is based on the FDA Draft Guidance for Clinical Evaluation of Products for Treatment of Irritable Bowel Syndrome.
- A Pain Intensity Responder is a patient who experiences a 30% or greater decrease in the weekly average of worst abdominal pain in past 24 hours in the past 24 hours compared to baseline.
- A Stool Consistency Responder is a patient who has a greater than 50% decrease in the number of days with at least one stool ≥ type 6 using the Bristol Stool Scale (BSS).
- A patient will be classified as an overall responder if they achieve the above improvement in pain intensity and stool consistency for at least 50 percent of the time.
Measured: 8 weeks
Secondary outcomes (4)
Improvement in other specific IBS symptoms, i.e., gas and bloating, feeling of urgency
Specific IBS symptoms, i.e., gas and bloating, feeling of urgency, will be assessed by visual analogue scales (VAS) with scales from 0 (no symptom at all) to 10 (the worst possible symptom).
Measured: 8 weeks
Reduce hs-CRP levels
Blood will be drawn from IBS-D patients after a 12-hour fast and will be analyzed for hs-CRP.
Measured: 8 weeks
Improve the cholinergic status
Plasma cholinesterase catalytic activity measurements will involve adaptation of a spectrophotometric method to a microtiter plate assay
Measured: 8 weeks
Reduce calprotectin levels
At the beginning and at the end of the treatment period, fecal samples will be obtained for the measurement of calprotectin levels.
The quantitative concentration of calprotectin will be determined by enzyme linked immunosorbent assay (ELISA).
Measured: 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Aug 2012 (estimated)
- Study startJan 2014
- Primary completionApr 2015
- Study completionApr 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for IBSStudies of the same condition, open and under way.
- More trials run by Tel-Aviv Sourasky Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 107 participants (actual)
Sponsor and investigators
- Lead sponsor
- Tel-Aviv Sourasky Medical Center
- Sponsor type
- Other government
- Responsible party
- Sponsor
- Investigators
- Ami Sperber, MD, Study director, Tel Aviv Medical CenterRoy Dekel, MD, Principal investigator, Tel Aviv Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01667627
- Sponsor's protocol ID
- TASMC-11-RD-0491-CTIL
- Acronym
- IBS-D
- Status last verified
- May 2018
- First submitted
- 15 Aug 2012
- Last updated
- 24 May 2018
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 May 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Double-blind, Placebo-controlled Study to Assess the Effect of Probiotic on Symptom Relief and Indices of Micro-inflammation and Cholinergic Status in IBS Patients With Diarrhea.
- ClinicalTrials.gov ID
- NCT01667627
- Acronym / sponsor ID
- IBS-D / TASMC-11-RD-0491-CTIL
- Conditions
- IBS
- Keywords
- IBS, Probiotic, hs-CRP, Cholinergic status, Micro-inflammation
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 107 participants (actual)
- Lead sponsor
- Tel-Aviv Sourasky Medical CenterOther government
- Study start
- Jan 2014
- Primary completion
- Apr 2015 (actual)
- Study completion
- Apr 2015 (actual)
- First posted
- 17 Aug 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
We present the study design of a clinical trial designed to assess the clinical effects of the multispecies probiotic combination "BIO-25" in IBS-D patients. To this aim the primary endpoints of the study will be improvement in abdominal pain and stool consistency. The study will also be designed and powered to investigate the effect of the probiotic BIO-25 on the putative inflammation-associated parameters related to microinflammation in IBS, using postulated improvements in Hs-CRP, and calprotectin as markers of that effect. Additional aims of the study will examine the possible effect of probiotic BIO-25 on the cholinergic status.
Detailed description
Probiotic treatment in IBS is safe and effective. Probiotics have been shown to improve the anti-inflammatory/proinflammatory ratio, and may also improve intestinal motility, and the bacterial composition of the intestines. There is a substantial body of evidence in support of the use of probiotics in IBS. Probiotics appear to be particularly effective in the reduction of abdominal bloating and discomfort. The strains of the multispecies probiotic combination (BIO-25 LR) were tested and found to be beneficial in well-designed studies of IBS patients. Patients with post-infectious IBS, as well as many patients with "classic" IBS, manifest a low-grade inflammatory state that may be associated with visceral hypersensitivity and impaired motility. Probiotics may suppress this low-grade inflammation. In a recent study we found that highly sensitive CRP (hs-CRP), a serum marker of micro-inflammation, was significantly higher in patients with diarrhea-predominant IBS than healthy controls, although within normal limits in both groups. Thus, hs-CRP may serve as a marker of this low-grade, sub-clinical inflammation. If treatment with probiotic reduces the degree of low-grade inflammation in IBS, the improvement may be reflected in reduced hs-CRP levels. This study can contribute to our understanding of the pathophysiology of IBS and provide further evidence for the effectiveness of probiotic in its treatment.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| BIO-25, Probiotic-mixture | Active comparator | Dietary Supplement: Bio-25Two capsules a day. |
| Placebo | Placebo comparator | Other: PlaceboIdentical to the Bio-25 capsule: same taste, same colour, same appearance |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- A diagnosis of IBS-D according to the Rome III criteria, agreement to participate and the ability to sign an informed consent. Moreover, the definition of inclusion criteria is based on the FDA Draft Guidance for Clinical Evaluation of Products (add ref here). Over the two week run-in period:
- Pain Intensity: weekly average of worst abdominal pain in past 24 hours score of ≥ 3.0 on a 0 (no pain at all) to 10 (worst possible pain) point scale
- Stool Consistency: ≥30% of days/week with at least one stool ≥6 using the Bristol Stool Score (BSS, Fig. 1) (ref).
Key exclusion criteria (1 listed)
- 1) Hyperthyroidism, 2) celiac disease 3) pregnancy, 4) other gastrointestinal diagnoses that might interfere with the study (e.g. active peptic disease, inflammatory bowel disease), 5) a history of malignancy that might, to the best judgment of the doctor, interfere with the study, 6) any infectious or inflammatory disease within the last month, 7) active medically treated asthma, 8) baseline levels of HsCRP > 10mg/liter, 9) steroid treatment for any indication, 10) fecal incontinence, and 11) treatment with probiotics or antibiotics of any kind within the last 4 weeks, 11) Diabetes.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Bio-25Also: ProbioticEach capsule of the multispecies probiotic combination Bio-25 consists of 25 billion live bacteria. Each type of bio-25 contains billions of live lactic acid bacteria in defined ratios of lyophilized Bifidobacterium breve, Bifidobacterium longum, Bifidobacterium infantis, Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus paracasein, Lactobacillus casei, Bifidobacterium bifidum,Lactobacillus lactis, Lactobacillus rhamnosus,and Streptococcus thermophilus. | Dietary supplement | BIO-25, Probiotic-mixture |
| PlaceboIdentical placebo | Other | Placebo |
Primary outcome
Symptom relief (abdominal pain and stool consistency)
Time frame: 8 weeks
Abdominal pain intensity, stool consistency, will be assessed by visual analogue scales (VAS) with scales from 0 (no symptom at all) to 10 (the worst possible symptom. The definition of treatment responders is based on the FDA Draft Guidance for Clinical Evaluation of Products for Treatment of Irritable Bowel Syndrome. * A Pain Intensity Responder is a patient who experiences a 30% or greater decrease in the weekly average of worst abdominal pain in past 24 hours in the past 24 hours compared to baseline. * A Stool Consistency Responder is a patient who has a greater than 50% decrease in the number of days with at least one stool ≥ type 6 using the Bristol Stool Scale (BSS). * A patient will be classified as an overall responder if they achieve the above improvement in pain intensity and stool consistency for at least 50 percent of the time.
4 secondary outcomes
Improvement in other specific IBS symptoms, i.e., gas and bloating, feeling of urgency
Time frame: 8 weeks
Reduce hs-CRP levels
Time frame: 8 weeks
Improve the cholinergic status
Time frame: 8 weeks
Reduce calprotectin levels
Time frame: 8 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 May 2018.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ami Sperber, MD study director
Tel Aviv Medical Center
Roy Dekel, MD principal investigator
Tel Aviv Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Bio-25 in people with IBS, run by Tel-Aviv Sourasky Medical Center at 1 site in Israel.
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 1 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 24 May 2018. 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 Israel. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Symptom relief (abdominal pain and stool consistency) (time frame: 8 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 24 May 2018.