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Systemic SclerosisPhase 3SScNCT02302352

Effects of Probiotics on Gastrointestinal Symptoms and on the Immune System in Patients With Systemic Sclerosis

A Phase 3 study testing Probiotic in people with Systemic Sclerosis and Scleroderma, run by Federal University of São Paulo at 1 site in Brazil.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Systemic sclerosis (SSc) is an autoimmune disease with unknown etiology, which affects especially the gastrointestinal tract, lungs, heart and kidneys. Immunological abnormalities characterized by innate and acquired immune disturbances are associated with the disease development. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Systemic Sclerosis, Scleroderma
What is being tested?
Probiotic
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
76 participants
Where
1 siteBrazil
Study dates
Dec 2014to Jan 2016
Phase
Phase 3
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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Patients with systemic sclerosis according to the 2013 ACR/EULAR classification criteria for SSc;
  • Patients with gastrointestinal symptoms related to SSc including: gastrointestinal reflux, bloating, diarrhea and constipation;
  • Written informed consent provided by the subjects.

Who cannot join

  • Overlap syndromes with systemic lupus erythematosus, polymyositis/dermatomyositis and rheumatoid arthritis;
  • Use of antibiotics and/or probiotics four weeks before baseline;

Trial locations and contacts

1 site in 1 country.

Thais Marighela contact

55-11-55764239

thais_fm@hotmail.com

Brazil1 site
  • Systemic Sclerosis Outpatient Clinic, Hospital São Paulo

    São Paulo, São Paulo

Other trials in Brazil

About this study

Official title: Effects of Probiotics on Gastrointestinal Symptoms and on the Immune System in Patients With Systemic Sclerosis: a Randomized Double-blind Placebo-controlled Clinical Trial

Systemic sclerosis (SSc) is an autoimmune disease with unknown etiology, which affects especially the gastrointestinal tract, lungs, heart and kidneys. Immunological abnormalities characterized by innate and acquired immune disturbances are associated with the disease development. The present study aims to evaluate the efficacy and safety of probiotics in gastrointestinal symptoms, nutritional status and innate and acquired immune responses, by means of the evaluation of IgA, Treg and Th1, Th2, and Th17 T helper subtypes levels in patients with SSc. In addition the levels of CD4+ T helper Th1, Th2 and Th17 subtypes and Treg levels will be compared to a healthy control group.

Read the detailed description

Systemic sclerosis (SSc) is a chronic autoimmune disease, which affects the gastrointestinal tract, lungs, heart and kidneys. A shift in the balance between T helper 1 (Th1) and Th2 subtypes and between regulatory T cells (Treg) and Th17 cells levels, as well as intestinal microbiota abnormalities may be present in SSc. These abnormalities can stimulate inflammatory response, and cause intestinal epithelial damage. The use of oral probiotics for microbiome or immune response modulation can be attractive especially in autoimmune diseases. Objectives: To evaluate the efficacy and safety of probiotics in gastrointestinal symptoms, nutritional status and innate and acquired immune responses, by means of the evaluation of IgA, Treg and Th1, Th2, and Th17 T helper subtypes levels in patients with SSc. In addition the levels of CD4+ T helper Th1, Th2 and Th17 subtypes and Treg levels will be compared to a healthy control group. Patients and methods: A randomized double-blind placebo-controlled clinical trial, with 76 SSc patients will be performed. Patients will be randomly assigned to receive oral probiotics once a day or placebo for 8 weeks. The primary outcome will be changes in the gastrointestinal symptoms between baseline and week 8. Clinical evaluation, scleroderma Health Assessment Questionnaire (sHAQ), food intake record, anthropometry assessment and laboratory evaluation will be performed at baseline (T0), at week 4 (T1) and week 8 (T2). C-reactive protein (CRP) and immunoglobulin A (IgA) serum levels assessment will be performed at each visit. The proportion of CD4+ and CD8+ T cells, and Tregs (CD4+CD25+Foxp3+CD127low), and Th1, Th2 e Th17 CD4+ T cell subsets levels will be evaluated using flow cytometer at each visit in SSc patients and also in 50 healthy subjetcs.

Being tested
Probiotic, Placebo
Keywords
Probiotics, Immune system
Medical subject headings
Scleroderma, Systemic, Scleroderma, Diffuse

What participants receive

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

  • ProbioticOther

    Also called Lacto Pro

    Probiotic 1g once a day by mouth for 8 weeks

  • PlaceboOther

    Maltodextrin 1g, manufactured to mimic the probiotic, once a day by mounth for 8 weeks

Study groups in NCT02302352
Study groupRoleWhat they receive
ProbioticActive comparatorOral probiotic 1g, once/day, containing: Lactobacillus paracasei, 10x9 CFU; Lactobacillus rhamnosus,10x9 CFU; Lactobacillus acidophillus, 10x9 CFU; Bifidobacterium lactis 10x9 CFU per sachet
Receives: Other: Probiotic
PlaceboPlacebo comparatorMaltodextrin 1g per sachet, once/day
Receives: Other: Placebo

What is being measured

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

  1. Changes in the gastrointestinal symptoms as measured by the "The University of California Los Angeles Scleroderma Clinical Trials Consortium Gastrointestinal Tract 2.0 (GIT 2.0)" Questionnaire

    Measured: baseline and eight weeks

Secondary outcomes (7)
  1. Scleroderma Health Assessment Questionnaire (sHAQ)

    Measured: baseline and eight weeks

  2. Food intake record

    Measured: baseline and eight weeks

  3. Anthropometry assessment as measured by the body mass index (BMI)

    Measured: baseline and eight weeks

  4. C-reactive protein (CRP) and immunoglobulin A (IgA) serum levels

    Measured: baseline and eight weeks

  5. Proportion of CD4+ and CD8+ T cells

    Measured: baseline and eight weeks

  6. Tregs (CD4+CD25+Foxp3+CD127low) levels

    Measured: baseline and eight weeks

  7. Th1, Th2 and Th17 CD4+ T cell subsets levels

    Measured: baseline and eight weeks

Timeline

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

  1. First posted27 Nov 2014 (estimated)
  2. Study startDec 2014
  3. Primary completionApr 2015 (estimated)
  4. Study completionJan 2016 (estimated)

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
76 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02302352
Sponsor's protocol ID
2013/26788-3
Acronym
SSc
Status last verified
Nov 2014
First submitted
17 Nov 2014
Last updated
27 Nov 2014
Results posted
No
Data monitoring committee
No

Publications

  • Marighela TF, Arismendi MI, Marvulle V, Brunialti MKC, Salomao R, Kayser C. Effect of probiotics on gastrointestinal symptoms and immune parameters in systemic sclerosis: a randomized placebo-controlled trial. Rheumatology (Oxford). 2019 Nov 1;58(11):1985-1990. doi: 10.1093/rheumatology/kez160.

    PubMed 31056685

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Probiotic in people with Systemic Sclerosis and Scleroderma, run by Federal University of São Paulo at 1 site in Brazil.

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 2 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: status not confirmed, as of the sponsor's last update on 27 Nov 2014. 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 Brazil. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

Results are not available in the source record.

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

Contact Thais Marighela (55-11-55764239, thais_fm@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in the gastrointestinal symptoms as measured by the "The University of California Los Angeles Scleroderma Clinical Trials Consortium Gastrointestinal Tract 2.0 (GIT 2.0)" Questionnaire (time frame: baseline and eight weeks). 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 NCT02302352, 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 27 Nov 2014.

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