Clinical Research Directory

Hybrid Closed Loop Therapy and Verapamil for Beta Cell Preservation in New Onset Type 1 Diabetes (CLVer): Extension Study

The purpose of this extension study is to continue to follow the participants who completed the CLVer RCT for up to 3 additional years. The goal for Cohort A is to evaluate the longer-term effects of verapamil on preservation of β-cell function as measured by C-peptide levels obtained during a mixed meal tolerance test (MMTT). For both Cohorts A and B, the goal is to determine if the high degree of glycemic control achieved during CLVer with HCL can be maintained once the intensive engagement of the study team is discontinued. At the completion of the RCT, study treatments end. Thus, during the extension study, diabetes management is performed as part of usual care and there is no study treatment.

Residual Insulin Secretion in Patients With Type 1 Diabetes Under a Low Carbohydrate Diet or a Ketogenic Diet

Low Carbohydrate Diet (LCD) (\< 130 g of carbohydrate per day) and ketogenic diet (\< 50 g of carbohydrate per day) are popular among patients with type 1 diabetes (T1D). In most cases, LCD allow a better glycemic control and a important decrease of insulin requirements that cannot, however, be the sole result of low carbohydrate intake. However, due to the increase production of ketone bodies and the decrease of the insulin/glucagon rate, this diet is not without risk in T1D patients and some of them develop ketoacidosis. Type 1 diabetes is a autoimmune disease defined by the destruction of the pancreatic beta cells by the effector T cells, in condition of low regulatory T cells (Tregs). Indeed, some nutrients could regulate the plasticity and the function of Tregs, and be involved in the control of some autoimmune diseases in animals models thanks to a direct effect on immune cells of the digestive tract or an indirect effect by microbiota modulation. The study hypothesises that LCD may be able to restore residual insulin secretion in some patients by modulating immunity. The metabolic mechanisms leading to the effects described in patients with T1D patients under LCD have not been studied : in particular, there is no data on the evolution of the residual insulin secretion and no immunological parameter has been studied on these patients.

CGM Academy for Youth With Type 1 Diabetes

The goal of this randomized clinical trial is to compare the effects of a virtual education curriculum in blood glucose variation of youth with type 1 diabetes wearing continuous glucose monitoring (CGM) device. The main questions the study aims to answer are: * Do participants undertaking the proposed curriculum present improved glucose variation than participants of standard education? * Explore relationships between participant's glycemic outcomes with diabetes distress, diabetes family responsibilities, and number of hours of diabetes education. Participants in the intervention group will: * receive an interactive workbook with problem-based learning scenarios and video links about CGM and glucose management strategies. * participate in four in-depth online group sessions with diabetes care and education specialists * complete questionnaires three times: at the time of study enrollment, week 4 and 6 months. Participants in the comparison group will: * receive standard education provided to all patients at CHLA * complete questionnaires three times: at the time of study enrollment, week 4 and 6 months.

Interleukin-2 Therapy of Autoimmunity in Diabetes (ITAD)

The main purpose of this study is to see if a drug called aldesleukin, can preserve insulin production in children and young adults recently diagnosed with type 1 diabetes. One group will receive aldesleukin and the other a placebo.