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Remodeling of the Gut Microbiota-Bile Acid Axis via Biliopancreatic Diversion: Investigating the Regulatory Mechanism for Enhanced Weight Loss Efficacy of SADI-S

Remodeling of the Gut Microbiota-Bile Acid Axis via Biliopancreatic Diversion: Investigating the Regulatory Mechanism for Enhanced Weight Loss Efficacy of SADI-S

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600117822
Enrollment
Unknown
Registered
2026-01-29
Start date
2025-12-01
Completion date
Unknown
Last updated
2026-02-02

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

Conditions

Metabolic Syndrome (MetS)

Interventions

Observation Group:None
Control Group:None

Sponsors

China-Japan Union Hospital of Jilin University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1.Aged 18-65 years, regardless of gender; 2.Meeting the WHO diagnostic criteria for obesity: BMI >= 35 kg/m^2, or BMI >= 32.5 kg/m^2 with at least one comorbid metabolic complication (e.g., type 2 diabetes, hypertension, dyslipidemia, obstructive sleep apnea); 3.Deemed eligible for and planning to undergo either SADI-S or SG surgery, as assessed by the hospital's multidisciplinary team (MDT); 4.Undergoing bariatric surgery for the first time, with no history of prior bariatric/metabolic surgery; 5.Voluntarily agreeing to participate in the study, providing written informed consent, and committing to complete the 12-month postoperative follow-up.

Exclusion criteria

Exclusion criteria: 1.Use of antibiotics, probiotics, or agents affecting bile acid metabolism (e.g., cholestyramine) within the past 3 months; 2.Use of glucose-lowering medications that may significantly influence metabolism (e.g., GLP-1 receptor agonists, SGLT2 inhibitors) within the past 1 month; 3.Diagnosis of inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis) or active gastrointestinal malignancy; 4.History of major psychiatric disorders (e.g., depression, eating disorders) or substance abuse; 5.Current pregnancy or breastfeeding; 6.Any other condition that, in the investigator's judgment, would render the participant unsuitable for the study.

Design outcomes

Primary

MeasureTime frame
Percent Total Weight Loss (%TWL) at 12 Months Postoperatively;Changes in the relative abundance of specific bacterial genera (including Clostridium) in the fecal microbiome;Changes in the plasma concentrations of secondary bile acids;

Secondary

MeasureTime frame
Weight;Fasting blood sugar;Glycated hemoglobin;Insulin resistance index;

Countries

China

Contacts

Public ContactTao Jiang

China-Japan Union Hospital of Jilin University

jiangtao99@jlu.edu.cn+86 138 4480 8599

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 7, 2026