Gut health hope: probiotic trial launches for Sjogren's
NCT ID NCT06297213
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This early-stage trial will test an oral probiotic called R-2487 in 36 adults with Sjogren's syndrome. The main goal is to see if the probiotic is safe and tolerable. Researchers will also check for changes in disease activity and inflammation using blood and stool samples. The study is not yet recruiting.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- R-2487 (a probiotic taken by mouth)
- What this could lead to
- If this works, it could point toward a new way to manage Sjogren's syndrome by improving gut health and reducing inflammation.
- What could go wrong
- This is a very early Phase 1 trial with only 36 people, focused on safety. It is too soon to know if the probiotic will actually help symptoms, and it may not show any benefit.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 36 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Aug 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Diagnosis of SS according to American-European Consensus Group Criteria * Able to provide informed consent * Subjects receiving prednisone (10 mg or less/day) must be on a stable dose for more than 2 weeks * All male and female subjects who are biologically capable of having children must agree to use medically acceptable method of birth control for the duration of the study. All female subjects who are biologically capable of having children must have a negative pregnancy test result before administration of investigational product. * The use of probiotics prior to study enrollment is accepted; however, during the course of the study, the use of probiotics is forbidden. Exclusion Criteria: * No known active overlapping or associated other autoimmune disease * Prior allogenic or autologous bone marrow or organ transplantation * Subjects with prior irradiation to the head and neck, including radioactive iodine treatment for hyperthyroidism * Subjects who have a present malignancy or previous malignancy within the last 5 years prior to screening (except documented history of cured non-metastatic squamous or basal cell skin carcinoma or cervical carcinoma in situ). Subjects who had a screening procedure that is suspicious for malignancy, and in whom the possibility of malignancy cannot be reasonably excluded following additional clinical, laboratory or other diagnostic evaluations. * Subjects with positive results for human immunodeficiency virus (HIV), hepatitis A virus (HAV), hepatitis B virus (HBV), or hepatitis C virus (HCV) * Subjects with active viral, bacterial, or fungal infection, or history of severe opportunistic infection within the preceding 3 months, or COVID-19 infection in the past 3 months * Subjects with evidence of active or latent tuberculosis * Active infection of the salivary or lacrimal glands * Prior immunotherapy, biologics, or investigational therapy must have completed at least 5 half-lives or 30 days, whichever is longer, prior to the first dose of R-2487 DP * Pregnant or breastfeeding women * Current clinical findings of severe, progressive, or uncontrolled renal, hepatic, hematological, gastrointestinal, pulmonary, cardiac, endocrine, neurological, or cerebral disease with laboratory values as following: Hemoglobin level \< 9.0 g/dL Absolute white blood cell (WBC) count of \<3.0×109/L (\<3000/mm3), or absolute neutrophil count of \<1.2×109/L (\<1200/mm3), or absolute lymphocyte count of \<0.8×109/L (\<800/mm3). Thrombocytopenia, defined by platelet count \<100×109/L (\<100,000/mm3) Chronic kidney disease defined as Estimated glomerular filtration rate (eGFR) \<60 mL/min/1.73m2, based on the age appropriate calculation. Proteinuria ≥3+. Total bilirubin (T-bili), aspartate aminotransferase (AST), alanine aminotransferase (ALT) more than 1.5 times upper limit of normal (ULN). Previously diagnosed hepatic cirrhosis (Child Pugh A or higher) or previously diagnosed significant liver fibrosis (\> F3) * Any form of vaccination in the last 30 days, to include but not limited to influenza, COVID, shingles, tetanus, hepatitis, pneumonia, HPV, DPT, MMR, and polio. * Subjects should not receive any of the following medications: Rituximab or belimumab within 6 months prior to Day 1 Abatacept within 3 months prior to Day 1 Infliximab, Adalimumab, Certolizumab, Tocilizumab, Cyclosporine, or Mycophenolate mofetil within 2 months prior to Day 1 Etanercept, Anakinra, Immunoglobulin, or blood products within 28 days prior to Day 1 * Prior immunotherapy, including systemic corticosteroids, such prednisone, biologics, Janus kinase (JAK) inhibitors (such as tofacitinib, or upadacitinib), ozanimod, or investigational therapy must have completed at least 5 half-lives or 30 days, whichever is longer, prior to Day 0, unless otherwise specified. In the case of cell-depleting therapies, such as B or T cell depletion, cell counts must have recovered to acceptable or baseline levels (use of licensed agents for indications not listed in the package insert is permitted).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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