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Big STAR study

Effect of probiotics, Bifidobacteria, on Gastrointestinal Symptoms in Patients with Type 2 diabetes mellitus; open-label, single-Arm, exploratory Research

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs051190109
Enrollment
40
Registered
2020-02-19
Start date
2020-04-08
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

gastrointestinal symptoms

Interventions

Study subjects take the study agent for 10 weeks (plus/minus 2 weeks)

Sponsors

Fukui Michiaki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients who meet all of the following criteria are included in this study: 1.Patients with gastrointestinal symptoms such as diarrhea or constipation 2.Patients whose mean Gastrointestinal Symptom Rating Scale (GSRS) subdomain score (diarrhea, constipation) is three or higher 3.Patients who are diagnosed with type 2 diabetes mellitus without neuropathy 4.Patients who use metformin and who do not use four or more antidiabetic agents 5.Patients who do not use new antibiotics within 12 weeks before giving their consent 6.Patients who are not treated with new interventions for diet therapy within 12 weeks before giving their consent 7.Patients who do not change concomitant drugs (addition or withdrawal of the concomitant drugs or change of usage or dose of the concomitant drugs) within 12 weeks before giving their consent 8.Male and female aged 20 years or older, and 75 years or younger when giving their consent 9.Patients who give their consent in a written form

Exclusion criteria

Exclusion criteria: Patients who fall into any of the following criteria are excluded from participating in the study: 1.Patients whose mean weekly defecation is less than once, or 42 times or more within 1 month before giving their consent 2.Patients who are diagnosed to have structural diseases by colonoscopy within 5 years before giving their consent 3.Patients with history or combination of celiac disease or inflammatory bowel disease 4.Patients with HbA1c of 9% or higher at giving their consent 5.Patients who are suffered by myocardial infarction, cerebral infarction, or stroke within 12 weeks before giving their consent 6.Patients with severe hepatic dysfunction (AST or ALT is 5 times or more higher than upper limit in the collaborative research institutions 7.Patients with severe renal dysfunction (eGFR is less than 30 ml/min/1.73 square meter) 8.Patients with malignant neoplasm 9.Patients with history of allergy against bifidobacteria 10.Patients who use any other drugs or supplements which affect the functions of the inestines 11.Patients who use GLP-1 receptor antagonists or drugs which have high possibility to cause gastrointestinal symptoms (prokinetic agents, gastrointestinal dysfunction therapeutic agents, antiemetic agents, or anticholinergic agents, etc.) 12.Patients who routinely take foods, supplements or pharmaceutical agents including bifidobacteria (such as yogurt or chocolates) 13.Patients with other conditions that the investigator or researcher thinks inappropriate for the study

Design outcomes

Primary

MeasureTime frame
Change in GSRS score from baseline to week 10

Secondary

MeasureTime frame
1. Change and percent change in following parameters from baseline to week 12 - GSRS score - fecal properties / Bristol Scale score - HbA1c - Glycoalbumin - fasting plasma glucose - C-peptide - active GLP-1 - total bile acid - gut microbiota (type of enterobacteria, relative abundance, alpha diversity, and beta diversity) 2. Change in GSRS score from baseline to week 10 stratified by following factors - age - gender - BMI - type of gastrointestinal symptoms - administrating drugs 3. Correlations between change in fecal properties and change in biomarkers above

Contacts

Public ContactYoshitaka Hashimoto

University Hospital, Kyoto Prefectural University of Medicine

y-hashi@koto.kpu-m.ac.jp+81-75-251-5111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026