AzTrials
AzTrials

Type2 DiabetesORDERNCT05015283

Efficacy and Safety of One-anastomosis Versus Roux-en-Y Gastric Bypass for Type 2 Diabetes Remission

A study testing The laparoscopic One-anastomosis gastric bypass will consist of: and The laparoscopic Roux-en-Y gastric bypass will consist of: in people with Type2 Diabetes and Complication of Bariatric Procedure, run by Beijing Friendship Hospital at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

Diabetes mellitus (T2DM) is the most common complication of obesity patients. According to previous literature reports, weight loss and metabolic surgery are powerful means to treat obesity complicated with T2DM. Roux-en-Y gastric bypass (RYGB) is the standard operation recommended by the international society. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
The laparoscopic One-anastomosis gastric bypass will consist of: and The laparoscopic Roux-en-Y gastric bypass will consist of:
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
248 participants
Where
1 siteChina
Study dates
1 Feb 2022to 31 Dec 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

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

  • 21-65 years old, Male/Female, East Asian population
  • 50 kg/m2≥BMI≥27.5kg/m2
  • Type 2 diabetes duration ≥6 months
  • HbA1c≥7.0%
  • Currently receiving one or more oral/injectable hypoglycemic drugs (insulin /glucagon-like peptide-1 receptor agonist)
  • Recommendation for OAGB/RYGB evaluated by a multidisciplinary team

Who cannot join

  • Underwent gastrointestinal surgery (gastric/duodenal surgery or bariatric surgery)
  • Fasting C-peptide level lower than 1/2 normal minimum
  • Active gastrointestinal ulcer is present
  • Helicobacter pylori infection is present
  • A history of serious cardiovascular and cerebrovascular diseases (myocardial infarction, stroke, etc.)
  • A history of cirrhosis (Child-Pugh≥A)
Show all 16Show fewer
  • A history of chronic kidney disease (eGFR )< 60 ml/min / 1.73 m2)
  • Inflammatory bowel disease is present (ulcerative colitis, Crohn's disease)
  • Chronic anemia is present, Hgb for male <100g/L, for female <90g/L
  • A desire to conception during the study period
  • Uncontrolled mental and psychological disorders are present
  • Expected survival<5 years of end-stage disease or previous/current malignant tumor
  • Participated in clinical studies/trials that have the conflict of interest with the study
  • Unable to understand, refuse to participate and sign the informed consent
  • Gallstones require cholecystectomy
  • Reflux esophagitis above grade A

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Zhongtao Zhang, M.D.;Ph.D contact

+86-13801060364

zhangzht@ccmu.edu.cn

China1 site, 1 recruiting
  • Beijing Friendship Hospital

    Beijing, Beijing Municipality, 100050

    Zhongtao Zhang, M.D.;Ph.D, +86-13801060364, zhangzht@ccmu.edu.cn

    Zhongtao Zhang, M.D.;Ph.D

    Recruiting

Other trials in China

About this study

Official title: Efficacy and Safety of One-anastomosis Versus Roux-en-Y Gastric Bypass for Type 2 Diabetes Remission (ORDER): a Multi-centric, Randomized, Open-label, Superiority Trial

Diabetes mellitus (T2DM) is the most common complication of obesity patients. According to previous literature reports, weight loss and metabolic surgery are powerful means to treat obesity complicated with T2DM. Roux-en-Y gastric bypass (RYGB) is the standard operation recommended by the international society. One-anastomosis gastric bypass (OAGB) was recommended by IFSO(the International Federation for the Surgery of OBESITY AND METABOLIC DISORDERS ) in 2018.

In this study, two kinds of metabolic surgery will be compared. At present, focusing on the above two operations, only two effective randomized controlled clinical studies have been carried out, among which one single-center clinical study has been followed up for 2 years, and the primary end point is weight loss; Another multicenter study, with a 2-year follow-up, showed that the primary end point was weight loss, and the secondary index was the effectiveness of two surgical methods in the treatment of T2DM.There is still a lack of evidence-based evidence for the effectiveness and safety of the two surgical methods in the treatment of T2DM. This study will make high-level evidence about the advantages and disadvantages of OAGB and RYGB in the treatment of T2DM.

In this study, a number of centers with rich experience and clinical research experience in weight loss and metabolic surgery in Asia will be combined to complete the enrollment of 248 patients. Those who meet the standards will be randomly divided into two kinds of operations, and they will be followed up for 5 years on schedule. The rate of lost follow-up is controlled within 20%, and the data integrity is controlled within 95%. Taking the blood glucose remission rate of type 2 diabetes as the main observation index, the prospective verification shows that OAGB is clinically effective in treating obesity with type 2 diabetes compared with RYGB.

Being tested
The laparoscopic One-anastomosis gastric bypass will consist of:, The laparoscopic Roux-en-Y gastric bypass will consist of:
Keywords
Bariatric surgery

What participants receive

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

  • The laparoscopic One-anastomosis gastric bypass will consist of:Procedure or surgery

    gastrointestinal anastomosis: anterior colon and posterior stomach gastrointestinal anastomosis size: diameter < 1.5cm, linear anastomosis length 2.5cm biliary and pancreatic branches 200cm, food branches 100cm exact relationship with mesangial defect

  • The laparoscopic Roux-en-Y gastric bypass will consist of:Procedure or surgery

    the laparoscopic Roux-en-Y gastric bypass gastric sac size < 30ml gastrointestinal anastomosis: anterior colon and posterior stomach gastrointestinal anastomosis size: diameter < 1.5cm, linear anastomosis length 2.5cm biliary and pancreatic branches 50cm, food branches 150cm exact relationship with mesangial defect

Study groups in NCT05015283
Study groupRoleWhat they receive
Laparoscopic One-anastomosis gastric bypassExperimentalIn this group, the bariatric procedure is laparoscopic one-anastomosis gastric bypass, all operations follow the same standard operating procedure.
Receives: Procedure: The laparoscopic One-anastomosis gastric bypass will consist of:
Laparoscopic Roux-en-Y gastric bypassActive comparatorIn this group, the bariatric procedure is laparoscopic Roux-en-Y gastric bypass, all operations follow the same standard operating procedure.
Receives: Procedure: The laparoscopic Roux-en-Y gastric bypass will consist of:

What is being measured

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

  1. One year after operation, the complete remission rate of type 2 diabetes mellitus [HbA1c < 6%, fasting plasma glucose < 5.6 mmol/L, no need to use any hypoglycemic drugs]

    Complete remission of type 2 diabetes mellitus: the blood sugar HbA1c<6.0% and fasting plasma glucose< 5.6 mmol/L can be controlled only by changing lifestyle intervention without taking hypoglycemic agents after operation. Partial remission: blood glucose can be controlled only by changing lifestyle intervention after operation. HbA1c<6.5%, fasting plasma glucose 5.6~6.9mmol/L, and blood glucose 7.8~11.0mmol/L 2 hours after meal. Failure: blood sugar was relieved once, and then returned to the preoperative level.Unified OGTT measurement method

    Measured: 1 year after surgery

Secondary outcomes (19)
  1. The remission rate of type 2 diabetes mellitus

    [HbA1c < 6%, with or without hypoglycemic drugs] Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  2. The change of HbA1c

    Changes of glycosylated hemoglobin (HbA1c) compared with baseline.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  3. HbA1c value

    The value of HbA1c.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  4. The change of fasting blood glucose

    Changes of fasting blood glucose compared with baseline.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  5. Fasting blood glucose level

    The fasting blood glucose level.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  6. Fasting plasma insulin

    The value of fasting plasma insulin.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  7. Diabetes medication

    Follow up was used to observe whether the dosage of postoperative diabetes was reduced.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  8. Fasting blood lipids

    The value of fasting blood lipids.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  9. Changes of arterial blood pressure (SBP, DBP)

    The change of arterial blood pressure (SBP, DBP).Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  10. The excess weight loss (%EWL) and the total weight loss (%TWL) after surgery.

    %EWL=[(initial weight)-(post-op weight)]/[(initial weight)-(ideal weight)] (in which "ideal weight" is defined by the weight corresponding to a BMI of 25 kg/m2),%TWL=[(initial weight)-(post-op weight)]/initial weight.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  11. Change waist circumference (cm) according to absolute waist circumference

    Change waist circumference (cm) according to absolute waist circumference.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  12. Incidence of medical and surgical complications

    Incidence of medical and surgical complications (anastomotic leakage, bile reflux, intestinal obstruction, anastomotic ulcer, anastomotic stenosis, internal hernia, chronic gastritis, esophagitis, iron deficiency anemia ...) Visit 1:Post-op 1 month (+7 Days) Visit 2: Post-op 3 months(+7 Days) Visit 3: Post-op 6 months(14 Days) Visit 4: Post-op 12 months (+30 Days) Visit 5:Post-op 24 months (±30 Days) Visit 6:Post-op 36 months (±30 Days) Visit 7:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  13. Incidence of surgical complications

    According to the grade of surgical complications, proportion of surgical complications in the total number.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

  14. Surgery time

    Surgery time.Visit 1: Surgery day (day 0) record

    Measured: Surgery day (day 0) record

  15. Average length of stay, based on the length of stay from operation (surgery day =day0) to the end of hospitalization

    Average length of stay, based on the length of stay from operation (surgery day =day0) to the end of hospitalization.Visit 1: Surgery day (day 0) record

    Measured: 30 days after surgery

  16. Postoperative quality of life of patients, according to Impact Weight Quality Of Life questionnaire for weight loss surgery, scores were obtained

    According to Impact Weight Quality Of Life questionnaire for weight loss surgery, scores were obtained.The higher the score, the better the quality of life. Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: One day before surgery,5 years after surgery

  17. Postoperative gastroesophageal reflux

    Evaluate according to gastroesophageal reflux disease questionnaire. The higher the score, the more likely there is gastroesophageal reflux. Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: One day before surgery,5 years after surgery

  18. Diarrhea frequency

    Based on gastrointestinal symptom rating scale.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: One day before surgery,5 years after surgery

  19. Dumping syndrome and hypoglycemia symptoms

    Dumping syndrome and hypoglycemia symptoms.Dumping syndrome and hypoglycemia symptoms will be evaluated by questionnaire.Visit 1: Baseline Visit (Day 0-1) Visit 2:Post-op 1 month (+7 Days) Visit 3: Post-op 3 months(+7 Days) Visit 4: Post-op 6 months(14 Days) Visit 5: Post-op 12 months (+30 Days) Visit 6:Post-op 24 months (±30 Days) Visit 7:Post-op 36 months (±30 Days) Visit 8:Post-op 60 months (±30 Days)

    Measured: 5 years after surgery

Timeline

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

  1. First posted20 Aug 2021
  2. Study start1 Feb 2022
  3. Primary completion1 Oct 2026 (estimated)
  4. Study completion31 Dec 2026 (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
248 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05015283
Sponsor's protocol ID
BFH-ORDER
Acronym
ORDER
Status last verified
Aug 2022
First submitted
20 Jul 2021
Last updated
3 Aug 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: 1. Will individual deidentified participant data (including data dictionaries) will be shared: Yes 2. what data in particular will be shared: Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices). 3. what other documents will be available: study portocol 4. when will data be availuble (start and end dates): Beginning 6 months and ending 24 months following article publicaiton. 5. With whom: Investigators whose proposed use of the data has been approved by an independent review commmittee identified for this purepose. 6. For what types of analysis: For individual participant data meta-analysis. 7. By what mmechanism will data be made available: Proposals should be directed to zhangzht@ccmu.edu.cn to gain access, data requestors will need to sign a data access agreement.

Publications

  • Li M, Liu Y, Lee WJ, Shikora SA, Robert M, Wang W, Wong SKH, Kong Y, Tong DKH, Tan CH, Zeng N, Zhu S, Wang C, Zhang P, Gu Y, Bai R, Meng F, Mao Z, Zhao X, Wu L, Liu Y, Zhang S, Zhang P, Zhang Z. Efficacy and safety of one anastomosis gastric bypass versus Roux-en-Y gastric bypass for type 2 diabetes remission (ORDER): protocol of a multicentre, randomised controlled, open-label, superiority trial. BMJ Open. 2022 Sep 29;12(9):e062206. doi: 10.1136/bmjopen-2022-062206.

    PubMed 36175102

Questions about this trial

What is this clinical trial studying?

A study testing The laparoscopic One-anastomosis gastric bypass will consist of: and The laparoscopic Roux-en-Y gastric bypass will consist of: in people with Type2 Diabetes and Complication of Bariatric Procedure, run by Beijing Friendship Hospital at 1 site in China.

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 6 inclusion and 16 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: looking for participants now, as of the sponsor's last update on 3 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 1 site in China. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Zhongtao Zhang, M.D.;Ph.D (+86-13801060364, zhangzht@ccmu.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

One year after operation, the complete remission rate of type 2 diabetes mellitus [HbA1c < 6%, fasting plasma glucose < 5.6 mmol/L, no need to use any hypoglycemic drugs] (time frame: 1 year after surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05015283, which also lists 1 linked publication.

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 3 Aug 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in