Insulin-based Strategies to Prevent Hypoglycemia During Two Types of Exercise
Type 1 Diabetes MellitusRegular exercise is associated with many health benefits for individuals with type 1 diabetes. However, immediate and delayed exercise-induced hypoglycemia is frequent and thus the main limiting factor for physical activity practice in this population. To reduce the risk of exercise-induced hypoglycemia, two types of adjustments may be considered by patients with type 1 diabetes : pre-meal insulin-dose reduction and carbohydrate supplements. Few evidence-based recommendations are available for patients using insulin pump to adjust insulin doses in order to limit exercise-induced hypoglycemia. The objective of this study is to address the magnitude of the needed reduction during two types of frequently practiced exercise (continuous vs. interval exercise) known to have a different impact on blood glucose reduction.
Hypoglycemia Associated Autonomic Failure in Type 1 Diabetes Mellitus (DM)
Type 1 DiabetesHypoglycemia Associated Autonomic FailureExercise is a cornerstone of diabetes management. It helps reduce blood pressure, promote weight loss, lower insulin resistance and improve glucose and lipid (triglyceride and HDL-cholesterol) profiles. Unfortunately, the benefits of exercise are often not embraced by diabetic individuals because of the fear of low blood sugar (hypoglycemia). My laboratory has demonstrated that Autonomic nervous system (ANS) counterregulatory failure plays an important role in exercise associated hypoglycemia in Type 1 DM. ANS responses are significantly reduced in Type 1 DM and are further blunted by antecedent episodes of hypoglycemia. Furthermore, there is a large sexual dimorphism of reduced ANS responses during submaximal exercise in both Type 1 DM and healthy individuals that is unexplained. Accumulating data are demonstrating that serotonergic pathways can regulate ANS discharge. Generally, serotonergic pathways are inhibitory but both single and longer term administration of selective serotonin reuptake inhibitors (SSRI's) such as Prozac has been demonstrated to increase basal epinephrine levels and enhance baroreflex control of Sympathetic nervous system (SNS) activity. What is unknown is whether fluoxetine can also enhance SNS responses and also override the large ANS sexual dimorphism present during sub maximal exercise. Therefore, the purpose of this study is to determine if the SSRI fluoxetine (Prozac) can improve SNS responses during exercise.
GLUCOSAFE 2 - A New Tool for Nutritional Management and Insulin-therapy in the Intensive Care Unit...
Critical IllnessEnergy Supply; Deficiency4 moreThe survival and the outcomes of critically ill patients are strongly influenced by insulin-therapy and nutritional support. The GLUCOSAFE 2 pilot study, aims to test the performance and the security of the new GLUCOSAFE 2 software, developed by the model-based medical decision support of Aalborg University (Denmark) and adapted to the clinical needs in the intensive care unit (ICU) of the Geneva University Hospital (HUG). This new device is based on a mathematical model of the glucose-insulin metabolism and attempts to give advices for better glycaemia control and nutritional therapy. The GLUCOSAFE 2 study hypothesizes that the use of the Glucosafe 2 software will allow better glycaemia ("Time-in-target") control and better achievement of nutritional energy and protein targets in comparison to the local protocols.
Oral Glibenclamide in Preterm Infants With Hyperglycaemia (GALOP)
Transient; HypoglycemiaNeonatal2 moreThe purpose of this study is to confirm hypothesis that Glibenclamide can be administered orally and is an alternative to insulin therapy in treating transient hyperglycemia of premature newborns.
Restoration of Hypoglycemia Awareness With Metoclopramide
Hypoglycemia UnawarenessMetoclopramide is a drug approved by the FDA for gastroesophageal reflux and to relieve symptoms in adults with acute and recurrent diabetic gastroparesis. The objective of this study is to determine whether metoclopramide can improve hypoglycemia awareness and decrease the incidence of hypoglycemia in type 1 diabetes patients with hypoglycemia unawareness.
Continuous Glucose Monitoring in At-Risk Newborns
Neonatal HypoglycemiaHypoglycemia (low blood glucose) is a very common problem in newborns, and has been associated with poor neurodevelopment, cognition, and school performance. At-risk newborns (infants of diabetic mothers [IDM], large [LGA] and small [SGA] for gestational age infants, and late preterm [LPT] infants) undergo a hypoglycemia screening protocol that involves numerous intermittent needle sticks to test glucose levels on bedside glucometers; however, continuous glucose monitoring (CGM, currently not approved for clinical use in babies), via a small sensor placed in the thigh (only 1 needle stick), would likely decrease pain while providing continuous glucose levels. This study will evaluate the feasibility, safety, and precision of CGM in at-risk newborns, and determine if this method would decrease the amount of painful procedures and episodes of hypoglycemia missed by intermittent sampling. As part of regular medical care, participants will undergo intermittent blood glucose screening with heel sticks as per the current hospital standard of care protocol. Regular medical care involves checking the participant's blood glucose via heel stick every few hours using a bedside glucometer, with another heel stick to confirm low values in the laboratory. If the participant has low values, he/she may be treated with oral glucose gel, feedings of breast milk or formula, or intravenous (IV) fluids in the Neonatal Intensive Care Unit (NICU). This research study involves placing a CGM device in addition to undergoing the current blood glucose screening protocol and treatment. As soon as possible after birth, a continuous glucose monitoring device (Dexcom G7) will be placed on the participant's thigh by a research team member, and will blindly continuously record glucose levels that will be analyzed after discharge. Everyone who agrees to participate in this study will have placement of this experimental device. The investigational device will stay in place for the same amount of time that a participant is undergoing blood glucose monitoring as per the current standard of care protocol, for a maximum of 7 days. A participant may need to have his/her blood glucose checked after 7 days for regular medical care (and not for research), because his/her glucose concentrations are still low. Being in the research study will not affect a participant's medical care, and will not affect how long he/she needs blood glucose monitoring or treatment. A research team member will place and remove the CGM. Nurses will evaluate the site of the device for signs of irritation, infection, bleeding, and any other issues at least 3 times per day. After discharge from the hospital, data will be collected from the participant's medical record and participant's mother's medical record, including the participant's sex and birth weight, blood glucose values, details of feedings, treatments given for low glucose concentrations, and NICU admission data. Data that will be collected from the participant's mother's medical record includes age and race, prenatal data, medical history, and medication use. The participant's parents will be asked to fill out a short survey about their experience with this device when it is removed.
A Study of the Effect of ZT-01 on Night-time Hypoglycemia in Type 1 Diabetes
Type 1 Diabetes Mellitus With HypoglycemiaThe goal of this clinical trial is to learn about the effect of the study drug (ZT-01) on low blood sugar (hypoglycemia) in adults with type 1 diabetes (T1D) who have been having low blood sugars ("hypos") at night. ZT-01 increases the amount of a hormone called glucagon during low blood sugar, and this may help prevent the occurrence of hypos. The main questions this trial aims to answer are whether ZT-01 lowers the number of hypos happening at night, and what its effects are on blood sugar levels. The safety of ZT-01 will also be measured. Participants will be asked to wear a study-provided continuous glucose monitor (CGM) during two 4-week periods when they will self-inject the study drug before bed. They will get ZT-01 at one of three dose levels during one period, and placebo (which looks like the study drug but doesn't contain the active ingredient) during the other. Neither the participant nor the study site will know what they are receiving during each treatment period or see data from the CGM. The participant will continue to use their usual methods of measuring blood sugar (including their personal CGM) and giving insulin during the study. The participant will be asked to complete a short diary each evening, and will be asked to upload the CGM data to a study phone every day. If a participant uses their own CGM and is willing to share information on how often they have low blood sugar with the study site at the first visit to see if they meet study entry requirements, they will have 6 study visits, 2 study phone calls, and be in the study for about 16 weeks. If they don't use CGM or don't want to share their information, then they will be asked to wear a study CGM for an extra 4 weeks to find out how many low blood sugars they have, and will have an extra visit. Study participants will be asked to give blood and urine for testing to see whether they meet the requirements to enter the study, and at the start and end of each treatment period to see if the study treatment has any effects. They will also have their blood pressure and temperature taken at each study visit, and have an ECG at 4 visits to measure the electrical activity of their heart. Some participants will be asked to also take part in a sub-study where their blood level of ZT-01 and glucagon is measured, after the first and last dose. They will be asked to stay at the study site overnight for each set of measurements (4 in total).
Continuous Glucose Monitoring Devices in Hospitalized Veterans With Diabetes
Diabetes MellitusType 21 moreMore than 25% of the patients admitted in the general wards have a history of Diabetes Mellitus (DM). Up to 30% of the hospitalized diabetics develop hypoglycemia (low glucose values); a condition that is associated with seizures, cardiac arrhythmias, and even death. In Veterans, the prevalence is disproportionally higher. It is estimated that 40-50% of hospitalized Veterans are diabetics. In this clinical trial the investigators describe the development of a novel system, the Glucose Telemetry System (GTS), with which glucose values can be wirelessly transmitted from the patient's bedside to a monitor device at the nursing station. The goal of this work is to develop a more effective glucose surveillance system at the general wards, which can decrease hypoglycemia in the hospital and improve clinical outcomes.
Low-dose Glucagon for Prevention of Exercise-Induced Hypoglycemia in People With Type 1 Diabetes...
Type 1 DiabetesHypoglycemiaThe primary aim of the study is to compare the efficacy of single-administration low-dose glucagon and split-administration low-dose glucagon to placebo for prevention of exercise-induced hypoglycemia in people with type 1 diabetes using insulin pumps and multiple daily injections (MDI). The secondary aim is to compare the accuracy of three continuous glucose monitors (CGM) during and after exercise in inpatient and outpatient settings.
FreeStyle Libre 2 Discharge Trial
Diabetes MellitusType 21 moreThe goal of this clinical trial is to learn about the benefits of using aa Continuous Glucose Monitoring (CGM) system in patients with diabetes following discharge from the hospital. The main question it aims to answer is: • If the use of CGM with alarms is safe and effective for managing low and/or high blood sugars when compared with performing finger sticks several times per day Participants will wear one or two FreeStyle Libre CGM sensors for 12-14 days three times over a 12-week (3 month) period. This means that they will have the one to two sensors inserted under their skin. They will be asked to come to the study site four times and complete two phone calls with research staff over the 12-week period. Researchers will compare the LibreView CGM group to the Standard of Care group to see if the use of continuous glucose monitoring (CGM) reduces risk of low blood sugar in patients with type 2 diabetes (T2D) after hospital discharge when compared with the current standard method.