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Enteroendocrine Physiological Changes in Superobese Patients Submitted to Two Different Bariatric ProceduresSURIDIAB2NCT04712409

Surgical Innovation for Diabetes Treatment 2

A study testing Single anastomosis duodeno-ileal bypass, Biliopancreatic diversion with duodenal switch and SADI-S as a revisional procedure in people with Enteroendocrine Physiological Changes in Superobese Patients Submitted to Two Different Bariatric Procedures and Determine Whether BPD With DS or SADI-S as Primary or Revisional Surgery is Superior Than the Other as First Choice for the Superobese, run by Hospital de Sao Sebastiao at 2 sites in Portugal.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study aims to understand the enteroendocrine physiological changes in superobese patients submitted to two different bariatric procedures (biliopancreatic diversion with duodenal switch versus single anastomosis duodeno-ileal bypass), when perfomed as primary or revisional surgeries (after a sleeve gastrectomy). Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
Single anastomosis duodeno-ileal bypass, Biliopancreatic diversion with duodenal switch and SADI-S as a revisional procedure
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
2 sitesPortugal
Study dates
16 Aug 2020to 1 Feb 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Bariatric surgery candidates
  • BMI between 45 and 55 kg/m2
  • Aged between 18 and 65 years at surgery

Who cannot join

  • Previous abdominal surgery
  • Diabetic patients (Hb A1c > 5,7%) prior to the bariatric procedure
  • Treatment with antidiabetic drugs, except for purposes other than diabetes treatment, prior to the bariatric procedure

Trial locations and contacts

2 sites in 1 country.

Portugal2 sites, 2 recruiting
  • São Sebastião Hospital

    Santa Maria da Feira, Aveiro District, 4520-211

    Marta Guimarães, PhD, MD, 00351962347298, marta.guimaraes@chedv.min-saude.pt

    Ana Marta Pereira, MD, 00351962347298, amarta.pereira@chedv.min-saude.pt

    Recruiting
  • Hospital de São Sebastião

    Santa Maria da Feira

    Marta Guimarães, PhD, 0034256379700, marta.guimaraes@chedv.min-saude.pt

    Ana Marta Pereira, MD, 0034256379700, amarta.pereira@chedv.min-saude.pt

    Recruiting

Other trials in Portugal

About this study

Official title: Characterization of Intestinal Hormone and Glucose Dynamics to Unravel the Antidiabetic Effect of Bariatric Surgery

This study aims to understand the enteroendocrine physiological changes in superobese patients submitted to two different bariatric procedures (biliopancreatic diversion with duodenal switch versus single anastomosis duodeno-ileal bypass), when perfomed as primary or revisional surgeries (after a sleeve gastrectomy). The main purpose is to establish the metabolic changes obtained with the sleeve gastrectomy and how the revisional procedure maximizes those changes. Additionally, the study will determine whether BPD with DS or SADI-S is superior than the other as first choice for the superobese.

The study will monitor the enteroendocrine function before and after the ingestion of a mixed meal, in pre-operatory and post-surgery timepoints, comparing both primary and revisional surgeries.

Read the detailed description

Abstract Obesity is a chronic disease whose global incidence keeps rising as the twenty first century goes on. Nowadays, the surgical approach constitutes the best treatment option for these patients, making the sleeve gastrectomy and the gastric bypass the more frequently performed bariatric surgeries.

However, the superobese patients (IMC≥ 50kg/m2) present variable weight loss resistance to the previous techniques, showing better results when submitted to disabsorptive procedures, namely the biliopancreatic diversion with duodenal switch, and the more recently created single anastomosis duodeno-ileal bypass. Each constitutes a revisional surgery option after a primary sleeve gastrectomy, reducing surgical and anesthesia risks. This has brought to light that some superobese patients do not need the revisional procedure as they achieve the weight loss target solely by the vertical gastrectomy.

Supported on the investigators' previous work and extensive experience performing both techniques, they now aim to understand the enteroendocrine physiological changes which each procedure accomplishes and compare them in terms of therapeutic efficacy among the superobese. The utmost goals will be to unravel the advantages of BPD-DS and SADI-S as primary or revisional surgeries, the differences between patients that respond well to sleeve gastrectomy alone and those who do not, and, finally, providing further insights on which procedure should be favoured over the other based on the patient characteristics.

Study Overview:

Participants in this study will have been submitted to either BPD-DS or SADI-S, as a primary or as a revisional surgery.

  • Participants visits will be scheduled before surgery and after surgery at 3, 6 , 12 and 24 months for those who receive BPD-DS or SADI-S as a primary procedure.
  • Those who are firstly submitted to the sleeve gastrectomy, visits will be scheduled before surgery and after surgery at 3 , 6 and 12 months. The revisional surgery will take place 1 year after the sleeve, with visits scheduled before surgery and after surgery at 3, 6 and 12 months.

In all these visits, detailed participants assessment will include vitals, anthropometric and biochemical evaluation, and the performance of a MMTT with plasma sampling for hormonal profiles. Intraoperative sampling of visceral and subcutaneous adipose tissue will take place during BPD-DS or SADI-S as a primary procedure and during the sleeve gastrectomy and repeated 1 year after the revisional surgery, either BPD-DS or SADI-S, is performed.

Participant Enrolment:

Participants will be selected from the cohort of patients referred for multidisciplinary evaluation by the clinical team for surgical treatment of obesity of the Centro Hospitalar Entre Douro e Vouga (CHEDV). Participants found to be suitable according to the entry criteria and who have accepted to participate will be enrolled in the study and assigned to one of the four study groups according to participants clinical features.

Being tested
Single anastomosis duodeno-ileal bypass, Biliopancreatic diversion with duodenal switch, SADI-S as a revisional procedure, BPD-DS as a revisional procedure
Keywords
Bariatric Surgery, Superobesity, Revisional Bariatric Surgery, Single anastomosis duodeno-ileal bypass, Biliopancreatic diversion with duodenal switch

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Single anastomosis duodeno-ileal bypassProcedure or surgery

    Also called SADI-S

    Sleeve gastrectomy followed by division of the duodenum bypassing the jejunum with end-to-side duodeno-ileal diversion

  • Biliopancreatic diversion with duodenal switchProcedure or surgery

    Also called BPD-DS

    Sleeve gastrectomy, followed by division of the duodenum bypassing the jejunum with end-to-side duedeno-ileal diversion and Roux-en-y entero-enteric anastomosis, leaving 100 cm common channel.

  • SADI-S as a revisional procedureProcedure or surgery

    In patients previously submitted to sleeve gastrectomy a single anastomosis duodeno-ileal bypass will be performed as 2nd time surgery

  • BPD-DS as a revisional procedureProcedure or surgery

    In patients previously submitted to sleeve gastrectomy a biliopancreatic diversion with duodenal switch will be performed as 2nd time surgery

Study groups in NCT04712409
Study groupRoleWhat they receive
SADI-S as a primary surgeryActive comparatorNot described
Receives: Procedure: Single anastomosis duodeno-ileal bypass
BPD-DS as a primary surgeryActive comparatorNot described
Receives: Procedure: Biliopancreatic diversion with duodenal switch
SADI-S as a revisional procedureActive comparatorNot described
Receives: Procedure: SADI-S as a revisional procedure
BPD-DS as a revisional procedureActive comparatorNot described
Receives: Procedure: BPD-DS as a revisional procedure

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in body mass index

    Body mass index (BMI) combines height (in meters) and weight (in kilograms) and is calculated as weight over (height)^2. Therefore, it will be reported in kg/m^2. This parameter will be determined at each study timepoint (pre-operatory, 3, 6 and 12 months post-surgery) at presential visits to the clinic.

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

  2. Change in glycated haemoglobin

    Glycated haemoglobin (HbA1c) will be measured in percentage (%). This parameter will be assessed at each study timepoint (pre-operatory, 3, 6 and 12 months post- surgery) through routine complete biochemical evaluation.

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months

  3. Change in glucose dynamic profile

    Glucose will be measured in mmol/L. This parameter will be assessed at each study timepoint (pre-operatory, 3, 6 and 12 months post-surgery) under fasting conditions and during a mixed-meal tolerance teste (MMTT) with blood collection at eight timed intervals (-10, 0, 15, 30, 45, 60, 90 and 120 minutes).

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months

  4. Change in insulin dynamic profile

    Insulin will be measured in mIU/L. This parameter will be assessed at each study timepoint (pre-operatory, 3, 6 and 12 months post-surgery) under fasting conditions and during a mixed-meal tolerance teste (MMTT) with blood collection at eight timed intervals (-10, 0, 15, 30, 45, 60, 90 and 120 minutes).

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

  5. Change in glucagon dynamic profile

    Glucagon will be measured in pmol/L. This parameter will be assessed at each study timepoint (pre-operatory, 3, 6 and 12 months post-surgery) under fasting conditions and during a mixed-meal tolerance teste (MMTT) with blood collection at eight timed intervals (-10, 0, 15, 30, 45, 60, 90 and 120 minutes).

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

  6. Change in GLP-1 dynamic profile

    Glucagon-like peptide-1 (GLP-1) will be measured in pmol/L. This parameter will be assessed at each study timepoint (pre-operatory, 3, 6 and 12 months post-surgery) under fasting conditions and during a mixed-meal tolerance teste (MMTT) with blood collection at eight timed intervals (-10, 0, 15, 30, 45, 60, 90 and 120 minutes).

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

  7. Change in GIP dynamic profile

    Glucose-dependent insulinotropic polypeptide (GIP) will be measured in pmol/L. This parameter will be assessed at each study timepoint

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

Secondary outcomes (4)
  1. Hypertension remission rates

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

  2. Dyslipidemia remission rates

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

  3. Sleep Apnea remission rates

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

  4. Metabolic syndrome remission rates

    Measured: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Jan 2021
  2. Study start16 Aug 2020
  3. Primary completion16 Aug 2022
  4. Study completion1 Feb 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04712409
Sponsor's protocol ID
HSS
Acronym
SURIDIAB2
Status last verified
Aug 2022
First submitted
13 Jan 2021
Last updated
17 Aug 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Single anastomosis duodeno-ileal bypass, Biliopancreatic diversion with duodenal switch and SADI-S as a revisional procedure in people with Enteroendocrine Physiological Changes in Superobese Patients Submitted to Two Different Bariatric Procedures and Determine Whether BPD With DS or SADI-S as Primary or Revisional Surgery is Superior Than the Other as First Choice for the Superobese, run by Hospital de Sao Sebastiao at 2 sites in Portugal.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 17 Aug 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Portugal. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Marta Guimarães, PhD (0034256379700 ext. 5575, marta.guimaraes@chedv.min-saude.pt), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in body mass index (time frame: From enrolment to 12 months post-intervention in 4 visits: preoperative, 3, 6 and 12 months post-surgery). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Aug 2022.

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