Classification and real-time risk-warning system for people having bariatric metabolic surgery
Official title: Establishment of a Classification System and Postoperative Risk Warning Model for Patients Undergoing Bariatric Metabolic Surgery for Severe Obesity
Run by The Third Xiangya Hospital of Central South University · NCT07093502 · Data updated 2026-11-12
This project will test whether clinical, lab, and biological data from 2,000 people having bariatric metabolic surgery can be used to classify patients and build a model that warns of postoperative risks.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 50 Years |
| Sex | All |
| Enrollment | 2000 (estimated) |
| Sponsor | The Third Xiangya Hospital of Central South University Academic / other |
| Locations | 1 site (Changsha, Hunan) |
| Status | Recruiting |
| Started | April 1, 2025 |
| Main results expected | December 31, 2035 |
| Study ends | December 31, 2035 |
| Registry record updated | July 30, 2025 |
| Trial ID | NCT07093502 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18–50 with clinical indications for bariatric/metabolic surgery, stable weight (±5% in the past 3 months), and planned laparoscopic sleeve gastrectomy or Roux-en-Y gastric bypass are ideal candidates.
✕Probably not a fit
People with untreated endocrine disorders, active cancer, significant renal or hepatic impairment, recent use of metabolism-altering medications, prior bariatric revisions, certain psychiatric or behavioral disorders, or those outside the age range may not benefit from the study's classification or risk model.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The study will enroll a prospective cohort of 2,000 adults undergoing laparoscopic sleeve gastrectomy or Roux-en-Y gastric bypass and collect clinical, laboratory, and multi-omics samples before surgery and at multiple postoperative time points through 24 months. Researchers will integrate time-series biospecimens and clinical data on a multidimensional platform and use clustering and machine learning to identify features linked to postoperative adverse events. Targeted assays will seek novel biomarkers and a risk warning model will be developed, validated, and evaluated. The final aim is to implement an intelligent digital system that combines patient classification with real-time risk alerts to support clinicians and patients in postoperative management.
Why it matters
Potential benefit: If successful, the system could provide personalized, real-time risk alerts and help clinicians and patients reduce complications and optimize recovery after bariatric surgery.
How similar studies have gone: Existing risk models and cohorts for bariatric outcomes exist, but a large prospective multi-omics classification with an integrated real-time digital risk-alert system is relatively novel and not yet widely validated.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria:
* Patients who meet the clinical indications for bariatric/metabolic surgery;
* Adults aged 18 to 50 years; ③ Stable body weight (change within ±5% over the past 3 months); ④ Undergoing either laparoscopic sleeve gastrectomy (LSG) or laparoscopic Roux-en-Y gastric bypass (LRYGB).
Exclusion Criteria:
* ① Patients with conditions affecting the immune or metabolic systems (e.g., endocrine disorders such as untreated hypothyroidism/hyperthyroidism, cancer);
* Patients with renal or hepatic impairment;
* Patients who have taken medications that may affect metabolism within the past 3 months (e.g., weight-loss drugs, asthma medications, psychiatric medications, corticosteroids);
* Patients who have previously undergone bariatric surgery and are undergoing revisional surgery; ⑤ Patients with psychiatric disorders, especially those with comorbid behavioral or personality disorders (e.g., binge eating disorder);
* Patients currently participating in other clinical studies that may conflict with this study or those who refuse to sign the informed consent form.
Where it's running
-
Third Xiangya Hospital of Central South University
Changsha, Hunan, China Recruiting
Study contacts
- Study coordinator: Liyong Zhu
- Email: zly8128@csu.edu.cn
- Phone: +86 13975879453
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Sarcopenia After Bariatric Surgery: Changes in Muscle and Function
This study tests how bariatric surgery affects muscle mass, strength, and physical performance over time in adults undergoing the procedure.
-
Flow-controlled versus volume-controlled ventilation during bariatric surgery
This trial will see if flow-controlled ventilation or volume-controlled ventilation gives better oxygen levels and lower airway pressures during bariatric surgery in adults with obesity.
-
Preoperative IV ferric derisomaltose to prevent anemia and improve quality of life in obese patients having bariatric surgery
This trial tests whether a single preoperative IV ferric derisomaltose dose, compared with saline placebo, prevents postoperative anemia and improves quality of life for iron-deficient obese patients undergoing bariatric surgery.
-
Using indocyanine green to map blood flow during revisional bariatric surgery
This test will see if the low guideline dose of indocyanine green or a higher dose gives clearer blood-vessel imaging during revisional bariatric surgery for people with BMI ≥30.
-
Predicting Quality of Life After Bariatric Surgery from Pre-Surgery Profiles
This study tests whether pre-surgical patient traits can predict how quality of life changes after bariatric surgery for adults in the GEROM73 program.
-
A new surgical approach to reduce GERD after weight loss surgery
This study is testing a new type of weight loss surgery to see if it can help reduce acid reflux in people who have had weight loss surgery.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.