An observational study in Bariatric Surgery and Type 1 Diabetes, sponsored by Centre Hospitalier Sud Francilien. Completed at 3 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-08-17.
Sponsored by Centre Hospitalier Sud Francilien · Observational
Bariatric surgery is increasingly performed on patients with type 1 diabetes. It exposes these patients to an increased risk of hypoglycemia, including severe hypoglycemia, and of severe episodes of hyperglycemia, beyond the perioperative period. The long-term efficacy and safety of hybrid closed-loop insulin pump in these patients has not yet been published.
Patients with type 1 diabetes and obesity are at risk of "double diabetes". Bariatric surgery may be indicated for these patients, to combat insulin resistance. Nevertheless, post-operative patients are at risk of hypoglycemia.
At the same time, patients with type 1 diabetes can benefit from a hybrid closed loop insulin pump to improve diabetes control and reduce the occurrence of hypoglycemia.
In type 1 diabetic patients who have undergone bariatric surgery and are treated with a hybrid closed loop insulin pump, continuous glucose measurement can be studied. In the medium and long term, the efficacy and safety of this system in this context will be described.
3,522 studies on the registry are indexed under Diabetes Mellitus, Type 1; 577 are open to participants now.
This study's enrollment of 17 is below the median of 120 across 748 observational studies indexed under Diabetes Mellitus, Type 1.
Browse Diabetes Mellitus, Type 1 studies →Centre Hospitalier Sud Francilien is the lead sponsor of 57 studies on the registry; 13 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patient with type 1 diabetes who underwent bariatric surgery and treated by hybrid closed-loop insulin pump.
Exclusion Criteria:
- Patient informed and opposed to data use
Having undergone bariatric surgery and on a closed-loop insulin pump after bariatric surgery
Also known as: Hybrid closed-loop insulin pump
time spent within glycemic target 70-180 mg/dL
time spent within glycemic target 70-180 mg/dL in type 1 diabetes patients who underwent bariatric surgery,
Time frame: at 3 months
Time spent in level 1 hyperglycemia (181-250 mg/dL)
Time spent in level 1 hyperglycemia (181-250 mg/dL) Time spent in level 1 hyperglycemia (181-250 mg/dL) Time spent in level 1 hyperglycemia (181-250 mg/dL)
Time frame: at 3 months
Time spent in level 2 hyperglycemia (>250 mg/dL)
Time spent in level 2 hyperglycemia (\>250 mg/dL)
Time frame: at 3 months
HbA1c
HbA1c
Time frame: at 3 months
Coefficient of variation
Coefficient of variation
Time frame: at 3 months
Time spent in level 1 hypoglycemia (51-70 mg/dl)
Time spent in level 1 hypoglycemia (51-70 mg/dl)
Time frame: at 3 months
Time spent in level 2 hypoglycemia (< 50 mg/gdl)
Time spent in level 2 hypoglycemia (\< 50 mg/gdl)
Time frame: at 3 months
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.
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Centre Hospitalier Sud Francilien