Bariatric Surgery + Pancreas Transplant for Type 2 Diabetes

(ComB-PAK Trial)

Age: 18 - 65
Sex: Any
Trial Phase: Academic
Sponsor: University Health Network, Toronto
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial explores a new treatment for type 2 diabetes in individuals who have undergone a kidney transplant due to diabetic nephropathy (kidney damage caused by diabetes). The researchers aim to determine if combining a sleeve gastrectomy (a type of weight-loss surgery) with a pancreas transplant can control blood sugar without insulin and maintain the function of the transplanted kidney. Participants will be divided into two groups: one will undergo the surgeries at different times, while the other will have both simultaneously. Suitable candidates for this trial include those who had a kidney transplant at least six months ago, have a BMI over 30, and exhibit signs of metabolic syndrome, such as high blood pressure or high triglycerides. As an unphased trial, this study provides a unique opportunity to explore innovative treatment combinations that could significantly improve health outcomes.

Will I have to stop taking my current medications?

The trial information does not specify whether you need to stop taking your current medications. However, since the trial involves surgery and transplantation, it's possible that some medication adjustments might be necessary. Please consult with the trial coordinators for specific guidance.

Is there any evidence suggesting that this trial's treatments are likely to be safe?

Research has shown that sleeve gastrectomy, a type of weight-loss surgery, is generally well-tolerated. Studies have found that it can improve diabetes and lead to significant weight loss. However, researchers are still studying its long-term safety, especially for people with type 2 diabetes. So far, no deaths have been directly linked to the procedure, which is reassuring.

For pancreas transplantation, results are usually positive. Research indicates good survival rates for both the patient and the new pancreas. This surgery often helps people with severe diabetes by improving blood sugar control and overall survival. However, it is a complex procedure, and like any major surgery, it carries risks.

In this trial, both treatments are combined. Each has its own safety record, suggesting they are generally safe, but the combination is still being explored.12345

Why are researchers excited about this trial?

Researchers are excited about combining bariatric surgery with pancreas transplants for Type 2 Diabetes because it represents a novel dual approach to tackling the disease. Traditional treatments often include lifestyle changes, oral medications, and insulin therapy, but this innovative method aims to address the root causes by simultaneously managing weight and restoring insulin production. The staggered approach involves performing sleeve gastrectomy before pancreas transplantation, potentially allowing for initial weight loss and metabolic improvements before tackling insulin issues. Alternatively, the combined approach performs both procedures at once, offering a comprehensive treatment that could lead to significant improvements in glucose control and potentially long-term remission of diabetes. This dual strategy could offer new hope for patients who struggle to manage their diabetes with current therapies.

What evidence suggests that this trial's treatments could be effective for Type 2 Diabetes?

This trial will compare two approaches: a staggered approach and a combined approach. Research has shown that sleeve gastrectomy, which participants in this trial may undergo, can lead to significant weight loss and help some people with type 2 diabetes manage their blood sugar better. However, it might not be the best option for everyone with diabetes, as other surgeries like gastric bypass have demonstrated better long-term results. Conversely, receiving a new pancreas through a transplant, another treatment option in this trial, can improve blood sugar control and reduce the need for insulin in people with type 2 diabetes. Studies indicate that pancreas transplants can also help kidney transplants last longer in patients who receive both. Together, these treatments might offer a promising way to manage type 2 diabetes and improve overall health.34678

Who Is on the Research Team?

TR

Trevor Reichman

Principal Investigator

University Health Network, Toronto

Are You a Good Fit for This Trial?

This trial is for adults with Type 2 Diabetes and obesity who've had a kidney transplant due to diabetic nephropathy. They should have a BMI over 30, be insulin-dependent for at least a year, and not smoke. Candidates must be at least six months post-kidney transplant surgery with stable kidney function.

Inclusion Criteria

It has been at least 6 months since my kidney transplant surgery.
You have at least three out of four specific health conditions related to metabolism.
Willing and able to provide informed consent
See 5 more

Exclusion Criteria

I do not have any health issues that would make the SG procedure unsafe for me.
My kidney function is reduced.
I have had weight loss surgery in the past.
See 4 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Pre-Treatment (Staggered Approach)

Participants undergo Sleeve Gastrectomy a minimum of 3 months prior to Pancreas Transplant

3 months

Treatment (Combined Approach)

Eligible participants undergo Sleeve Gastrectomy and pancreas transplantation simultaneously

Immediate

Follow-up

Participants are monitored for safety and effectiveness after treatment, with data collection up to 1 year post PAK transplant

12 months

What Are the Treatments Tested in This Trial?

Interventions

  • Pancreas after Kidney Transplantation
  • Sleeve Gastrectomy
Trial Overview The study tests if sleeve gastrectomy (a weight loss surgery) combined with pancreas transplantation can control blood sugar levels, reduce the need for insulin, improve resistance to insulin, and preserve kidney graft function in patients after their first year of pancreas after kidney transplant.
How Is the Trial Designed?
2Treatment groups
Experimental Treatment
Group I: Group 2: Combined ApproachExperimental Treatment1 Intervention
Group II: Group 1: Staggered ApproachExperimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

University Health Network, Toronto

Lead Sponsor

Trials
1,555
Recruited
526,000+

Published Research Related to This Trial

In a study of 35 patients with type 2 diabetes, both Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SLG) led to significant improvements in diabetes remission, with 13 patients from RYGB and 7 from SLG achieving remission.
Key factors for diabetes remission included baseline β-cell glucose sensitivity and an improved GLP-1 response after surgery, indicating that these hormonal changes are crucial for the effectiveness of the surgical interventions.
Roux-en-Y gastric bypass and sleeve gastrectomy: mechanisms of diabetes remission and role of gut hormones.Nannipieri, M., Baldi, S., Mari, A., et al.[2013]
Laparoscopic sleeve gastrectomy is a highly effective and safe surgical option for treating obesity and type 2 diabetes mellitus, making it a popular choice in bariatric surgery.
The review highlights the significant efficacy of this procedure, indicating its growing acceptance and application in the field of metabolic surgery.
[Evaluation of the application of laparoscopic sleeve gastrectomy in bariatric and metabolic surgery].Xu, B., Yao, QY.[2018]
In a study of 6062 patients who underwent laparoscopic sleeve gastrectomy (LSG), type 2 diabetics (T2DM) showed no increased risk of 30-day complications compared to non-diabetic patients, indicating that LSG is a safe option for this population.
While T2DM patients had a slightly higher rate of blood transfusions post-surgery, the overall complication rate was similar to non-diabetics, and type 1 diabetics experienced higher complication rates than both T2DM and non-diabetic patients.
The safety of laparoscopic sleeve gastrectomy among diabetic patients.Creange, C., Sethi, M., Fielding, G., et al.[2018]

Citations

Pancreas transplantation in type II diabetes mellitus - PMCKidney allograft survival at 5 years post-transplant was found to be 83.6% for DM1 SPK recipients, 80.4% for DM2 SPK recipients, and 52.7% for DM2 KTA ...
Clinical outcomes of simultaneous pancreas-kidney ...The overall kidney graft survival was lower in the elderly group as compared to younger group 82.4% vs. 90.8% respectively. After taking into ...
OPTN/SRTR 2021 Annual Data Report: PancreasThe percentage of pancreas transplants performed for type 2 diabetes increased from 21.3% to 25.9% from 2020 to 2021 (Figure PA 46). Clearly, the demographic ...
Pancreas Transplantation Outcome Predictions—PTOPSimultaneous kidney transplants were associated with increased patient survival and pancreas graft survival with hazard ratios (HRs) of 0.51 and 0.46, ...
Simultaneous Pancreas and Kidney Transplantation in ...Furthermore, patients with T2DM had significantly improved GS with SPK when compared to kidney transplantation alone. Despite these findings, ...
Outcomes of Simultaneous Pancreas-Kidney ...In T1DM, SPK transplant outcomes are excellent, with a reported 5-year patient, kidney, and pancreas graft survival of 88%, 77% (10), and 69% (11), respectively ...
OPTN/SRTR 2022 Annual Data Report: PancreasPancreas-after-kidney transplants decreased to 46 in 2022 from 51 in 2021. The trend of increasing proportions of pancreas transplants in patients with type 2 ...
The impact of pancreas transplantation on diabetic ...Pancreas transplantation provides optimal treatment for severely complicated T1DM. Improvements in glycaemic control and survival are well documented.
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