Active clinical trials for "Diabetes Mellitus, Type 1"

The study aims is to find out if people with type 1 diabetes diagnosed in later life (after age 30) have the same rapid loss of insulin secretion (measured using C-peptide) that occurs in younger adults with type 1 diabetes. The investigators will recruit 135 participants aged over 30 years with a clinical diagnosis of type 1 diabetes and diabetes duration ≤100 days. The investigators will also recruit a comparison group of 61 participants aged 18-30 with a clinical diagnosis of type 1 diabetes and diabetes duration ≤100 days. C-peptide will be measured during mixed meal tolerance tests (MMTT) performed at baseline, 6 months and a year. This study also aims to test a new more practical way of monitoring insulin secretion at home using a finger prick 'blood spot' rather than time consuming tests in a hospital. Finger-prick C-peptide samples will be collected after the MMTT and by the participants at home throughout the year.

Dietary carbohydrate consumption is a key factor influencing postprandial glycemia for patients with type 1 diabetes mellitus (T1DM). Because post-prandial glucose excursions profoundly influence hemoglobin A1c (HbA1c), therapeutic approaches to mitigate post-prandial hyperglycemia are of great importance. The quantity and source of carbohydrates affect post-prandial glycemia more than any other dietary factor. These findings serve as the physiologic basis for a growing interest in carbohydrate-restricted diets in the management of T1DM despite American Diabetes Association (ADA) guidelines that discourage restricting total carbohydrate intake to less than 130 grams per day. Although case series and prospective studies suggest low-carbohydrate diets (LCD) significantly improve HbA1c for adults with T1DM, data in the pediatric T1DM population is limited. The investigators will conduct a randomized prospective pilot study evaluating glycemic control, lipidemia, and quality of life (QOL) in pediatric T1DM patients on a LCD.

This is a study assessing the feasibility of using the insulin-only configuration of the iLet bionic pancreas with initiation in pump-naïve people with type 1 diabetes in a primary care practice with either in-person training and follow-up (PC-IP) or with training and follow-up via telehealth (PC-TH). As a comparison, the iLet will be initiated by an academic endocrinology practice with either in-person training and follow-up (EN-IP) or with training and follow-up via telehealth (EN-TH).

With emerging mobile technology, sharing glucose, insulin and sensor data with the clinic for frequent and timely monitoring is now feasible. The investigators propose to leverage this new technology to provide children and families with appropriate interventions to help manage their diabetes.

The current study focuses on terms of use of Insulin Aspart, fast analogue of human insulin and commonly used in the treatment of type 1 diabetes, where it obtained the marketing authorization for this indication. In the patient who have an insulin pump, insulin Aspart is given daily like a pre-prandial bolus (just before the meal). However, many patients perform their bolus after the meal. However this insulin administration modality is not clearly studied in the literature.

This clinical trial is a study to assess the performance of an automated glucose control system (Artificial Pancreas, AP) device in home settings for subjects with type 1 diabetes. Specifically, the investigators will test zone model predictive control AP that will be enhanced by run-to-run optimizations of basal rates (BR) and insulin to carbohydrate ratios (CR).

Problems with diabetes management in adolescents with type 1 diabetes are common - occurring at rates as high as 93% - and have serious health consequences, including poor blood sugar control and risk for later complications. Therefore, the investigators proposed to test a positive psychology intervention for adolescents with type 1 diabetes aimed at increasing motivation for diabetes management; specifically, to increase the frequency of blood glucose monitoring. This intervention will boost positive mood in adolescents (age 13-17) through tailored exercises in gratitude, self-affirmation, small gifts, and parent affirmation as a way to improve motivation for diabetes management. In addition, this study will explore the use of technology, by comparing telephone-administered vs. automated text-messaging versions of the intervention, to determine which mode of delivery is more appealing, convenient, and beneficial for adolescents in managing their diabetes. Participants and parents will complete questionnaires on mood and diabetes management during a routine clinic visits at baseline, 3 months, and 6 months. Clinical measures of diabetes management will be collected from participants' electronic medical records.

Insulin Clamp Ancillary study for Assessment of Insulin Resistance will be conducted as a sub-study to the main protocol, Metformin Therapy for Overweight Adolescents With Type 1 Diabetes (NCT01881828). The purpose of this ancillary study is to assess if metformin will improve tissue-specific insulin resistance (IR) in type 1 diabetes using a hyperinsulinemic euglycemic clamp; a 3-month randomized trial comparing metformin versus placebo in 12 to <20 year olds with BMI >85th percentile ( total daily insulin dose >0.7 units/kg, and HbA1c 7.0%-9.9%).

The primary purpose of this study is the evaluate an Artificial Pancreas during 2 months in home setting in Type 1 Diabetic patients

The aim this study is the acquisition and management of a data base for the development of the glycaemic regulation algorithms. This database will integrate the measures of blood glucose and the glycaemia level of the Dexcom sensor on a regular time, the injections of insulin delivered by Debiotech JewelPUMP and the level of insulin in the blood. This database will also contain the bolus of insulin injected at meals and the content of meals, the reduction insulin level during physical activity and the quantification of this physical activity. A study will also be conducted to compare the pharmacokinetics of a bolus of insulin identical with the JewelPUMP either the usual pump of the patient.