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49 active trials for Type1diabetes

Control of Renal Oxygen Consumption, Mitochondrial Dysfunction, and Insulin Resistance

Type 1 diabetes (T1D) is a complex metabolic disorder with many pathophysiological disturbances including insulin resistance (IR) and mitochondrial dysfunction which are causally related to the development of diabetic kidney disease (DKD) and which contribute to reduced life expectancy. Renal hypoxia, stemming from a potential metabolic mismatch between increased renal energy expenditure and impaired substrate utilization, is increasingly proposed as a unifying early pathway in the development of DKD. By examining the interplay between factors responsible for increased renal adenosine triphosphate (ATP) consumption and decreased ATP generation in young adults with and without T1D, this study hopes to identify novel therapeutic targets to impede the development of DKD in future trials. The investigators propose to address the specific aims in a cross-sectional study with 30 adults with T1D and 20 controls without a diagnosis of diabetes. For this protocol, participants will complete a one day study visit at Children's Hospital Colorado. Patients will undergo a Dual-energy X-Ray Absorptiometry (DXA) scan to assess body composition, renal Magnetic Resonance Imaging (MRI) to quantify renal oxygenation and perfusion, and a Positron Emission Tomography/Computed Tomography (PET/CT) scan to quantify renal O2 consumption. After the PET and MRI, participants will undergo a hyperinsulinemic-euglycemic clamp to quantify insulin sensitivity. Glomerular Filtration Rate (GFR) and Effective Renal Plasma Flow (ERPF) will be measured by iohexol and PAH clearances during the hyperinsulinemic-euglycemic clamp. To further investigate the mechanisms of renal damage in T1D, two optional procedures are included in the study: 1) kidney biopsy procedure and 2) induction of induced pluripotent stem cells (iPSCs) to assess morphometrics and genetic expression of renal tissue.

Start: January 2020

Evaluation of Coffee Therapy for Improvement of Renal Oxygenation

Over 1.25 million Americans have Type 1 Diabetes (T1D), increasing risk for early death from cardiovascular disease (CVD). Despite advances in glycemic and blood pressure control, a child diagnosed with T1D is expected to live up to 17 years less than non-diabetic peers. The strongest risk factor for CVD and mortality in T1D is diabetic kidney disease (DKD). Current treatments, such as control of hyperglycemia and hypertension, are beneficial, but only partially protect against DKD. This limited progress may relate to a narrow focus on clinical manifestations of disease, rather than on the initial metabolic derangements underlying the initiation of DKD. Renal hypoxia, stemming from a potential metabolic mismatch between increased renal energy expenditure and impaired substrate utilization, is increasingly proposed as a unifying early pathway in the development of DKD. T1D is impacted by several mechanisms which increase renal ATP consumption and decrease ATP generation. Caffeine, a methylxanthine, is known to alter kidney function by several mechanisms including natriuresis, hemodynamics and renin-angiotensin-aldosterone system. In contrast, to other natriuretic agents, caffeine is thought to fully inhibit the local tubuloglomerular feedback (TGF) response to increased distal sodium delivery. This observation has broad-ranging implications as caffeine can reduce renal oxygen (O2) consumption without impairing effective renal plasma flow (ERPF) and glomerular filtration rate (GFR). There are also data suggesting that chemicals in coffee besides caffeine may provide important cardio-renal protection. Yet, there are no data examining the impact of coffee-induced natriuresis on intrarenal hemodynamic function and renal energetics in youth-onset T1D. Our overarching hypothesis in the proposed pilot and feasibility trial is that coffee drinking improves renal oxygenation by reducing renal O2 consumption without impairing GFR and ERPF. To address these hypotheses, we will measure GFR, ERPF, renal perfusion and oxygenation in response to 7 days of cold brew coffee (one Starbucks® Cold brew 325ml bottle daily [205mg caffeine]) in an open-label pilot and feasibility trial in 10 adolescents with T1D already enrolled in the CASPER Study (PI: Bjornstad).

Start: July 2019

Group Education Trial to Improve Transition in Type 1 Diabetes

The investigators will conduct a randomized controlled trial (RCT) to examine group education visits as an innovative and potentially cost-effective approach to transition care delivery, that can be easily integrated into usual diabetes care. Among emerging adults with type 1 diabetes (T1D), the investigators aim to assess the effect of group education visits integrated into pediatric care, compared with usual care on Hemoglobin A1c (HbA1c), adverse outcomes and psychosocial measures after the transfer to adult care. The investigators will conduct a multi-site, parallel group, blinded (outcome assessors, data analysts), superiority Randomized Controlled Trial (RCT) of adolescents with T1D (17 years of age) followed at one of the two university teaching hospital-based pediatric diabetes clinics in Montreal. Interventions will occur over 12-months. Follow-up will be to 24 months from enrollment.

Start: November 2019

Metformin Use to Improve Pregnancy Outcome in Women With Type 1 Diabetes.

The study investigates whether additional metformin medication in combination with regular insulin treatment will decrease the need of insulin for women with diabetes mellitus type 1 during pregnancy.

Start: August 2019

Self Efficacy Levels, Attachment Style and Resiliency of Youth With Type 1 Diabetes

This project will assess self-efficacy levels(SE) ,resiliency and attachment style of adolescent with type 1 diabetes and their caregivers.SE and attachment style of patients and parents will be compared with each other as well as correlated with diabetes management as assessed by A1C and self inventory scale.

Start: September 2019

Alleviating Carbohydrate-Counting Burden in T1DM Using Artificial Pancreas and Empagliflozin

One of the challenges in the design of the artificial pancreas (AP) is preventing postprandial hyperglycemia. Beyond algorithmic solutions, one countermeasure to postprandial hyperglycemia that may enhance performance of the AP is the use of adjunctive-to-insulin medications such as those in the Sodium Glucose-Linked Transporter 2 inhibitor class. This study evaluates whether use of oral empagliflozin on the background of single-hormone AP can improve postprandial blood glucose control. The investigators will test this hypothesis in a cross-over trial design by comparing open-label empagliflozin versus placebo in the setting of AP on separate study days that involve carbohydrate counting, simple meal announcement and no meal announcement strategies.

Start: May 2018

Assessment of Two Insulin Pump Insulin Delivery Systems in Type 1 Diabetes.

This is a study of the Minimed 670G 4.0 insulin pump, assessing the efficacy of the Advanced Hybrid Closed Loop (AHCL) algorithm in controlling blood glucose levels in Type 1 Diabetes.

Start: May 2019

Wharton´s Jelly Derived Mesenchymal Stromal Cell Repeated Treatment of Adult Patients Diagnosed With Type I Diabetes

An open label, parallel single centre trial of Wharton's Jelly derived allogenic mesenchymal stromal cells repeated treatment to preserve endogenous insulin production in adult patients diagnosed with type 1 diabetes

Start: May 2019

MyT1DHero: an mHealth Intervention for Type 1 Diabetes

The overall objective of the proposed research is to improve HbA1c, adherence to treatment plans, and family communication surrounding adolescents' self-management of T1D. The investigators will test the efficacy of the MyT1DHero app against an attention control group. This will allow investigators to better understand the health and psychosocial improvements being made through the app.

Start: January 2019