Active clinical trials for "Diabetes Mellitus, Type 1"

The hypothesis is that an optimal formulation of fast acting and intermediary acting insulin analogues will improve post prandial glycaemic control in patients with type 1 diabetes. OBJECTIVE: The objective is to describe pharmacodynamic (PD) and pharmacokinetic (PK) profiles of Insulin Aspart (IAsp), Biphasic Insulin Aspart (BIAsp) 30, 50 and 70 for a period of 12 hours following a standard test meal on four days respectively in subjects with type 1 diabetes.

Subjects will undergo a 14-day outpatient, standard therapy phase during which sensor and insulin data will be collected. This will be followed by a 14-day hybrid closed-loop phase conducted in both a hotel/rental house setting and outpatient setting.

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).

The purpose of this study is to perform a randomized trial to investigate if intrapartum insulin delivery mechanisms reduces adverse outcomes associated with type 1 diabetes in pregnancy. The investigators aim to compare subcutaneous insulin pump versus intravenous insulin infusion with regard to the primary outcome of neonatal blood sugar.

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.

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.

The purpose of this study is to evaluate the Extended Wear (EW) infusion set seven day functioning in patients with Type 1 diabetes compared to the Quick-set infusion set. The study will be carried out in adults with type 1 diabetes.

The purpose of this research study is to find out if Type 1 Diabetes (T1D) affects skeletal muscle health and if we can improve glycemic control by improving skeletal muscle health. Participants in this study will have a blood sample and a urine sample collected after taking a single dose of a nontoxic chemical called D3-creatine. Their body composition will be measured by a scale like device. Parents of participating children will also be asked to complete a food and activity questionnaire. Participants will be in the study for roughly 12 to 24 months. Enrollment will begin once participant signs the consent form. At the 12 month follow-up visit participants will be asked to wear a Garmin physical activity monitor and use the Garmin Connect mobile app for a period of up to 12 months and take a one time Muscle Strength Measurement test. The greatest risks of this study include the possibility of loss of confidentiality.

In this protocol, 60 subjects with DM1 will be studied at baseline, after 12 weeks of MCR blockade or 12 weeks of exercise, and again after an additional 12 weeks of MCR blockade, exercise or the combination of both interventions. The investigators will assess function in conduit (pulse wave velocity-PWV, flow-mediated dilation-FMD and augmentation index-AI), resistance (post-ischemic flow velocity-PIFV) and heart and skeletal muscle microvascular (contrast enhanced ultrasound-CEU) vessels before and after 2 hrs of a euglycemic insulin clamp. We hypothesize that compared to healthy controls, both baseline and insulin-responsive vascular function are impaired throughout the arterial vasculature by DM1 and that exercise training and/or mineralocorticoid receptor (MCR) blockade will improve both baseline and insulin-responsive pan-arterial function.

The population of type 1 diabetes patients with cardiovascular disease is increasing and this study aims to explore the electrocardiographic changes that are associated with spontaneous hypoglycemia in this type of population. More precisely, this study will investigate if these modifications are of the same nature as those already observed in different populations (patients with type 2 diabetes) to see the pro-arrhythmogenic impact of hypoglycemia in patients with type 1 diabetes.