Prediabetes Clinical Trials

Obesity and its metabolic complications are leading causes of global morbidity and mortality. Evidence is mounting that inappropriate timing of food intake contributes to obesity. Specifically, late eating is associated with greater weight gain and metabolic syndrome. However, the mechanism by which late eating harms metabolism is not fully understood but may be related to mis-timing of food intake in relation to the body's endogenous circadian rhythm. Conversely, harmonization of eating timing with endogenous circadian rhythm may optimize metabolic health. In this study the investigators will use gold-standard methods of characterizing circadian rhythm in humans to examine the metabolic impacts food timing relative to endogenous circadian rhythm. Read Less

This study examines the association of variability in glucose values over a 10-day period with cognitive function and functional status among individuals with prediabetes, aged 50 or older. Read Less

This is a pilot study to determine the feasibility of studying the Fasting-Mimicking Diet (FMD), a dietary approach that involves the consumption of a specifically formulated, calorie-restricted nutrition regimen with a customized macronutrient composition, ratio, and quantity over a 5- day period, on a larger scale in Asian Americans with prediabetes and to examine the preliminary effects of the diet in study participants. The main questions the study aims to answer are: 1. What are the recruitment, adherence, and attrition rates of eligible participants into the study? 2. Does one FMD cycle result in changes in fasting blood glucose levels and physical measurements in study participants? Participants will be asked to undergo one cycle of FMD (for 5 days), fill out surveys, and come in for a pre-FMD and post-FMD study visit, during which physical measurements and fasting blood glucose and ketone levels will be measured. Read Less

We will be directly comparing a high-quality protein diet composed primarily of lean pork loin (PORK) to a lower-quality plant-based protein diet (PLANT) in individuals with prediabetes on muscle and whole-body protein turnover and glucose regulation. Read Less

The objective of this project is to deliver a behavior health education video series that combines wearable continuous glucose monitoring (CGM) with smartphone feedback and video clips generated by artificial intelligence (AI) software to improve glycemic control among individuals with prediabetes. The goal is to prevent transition to type 2 diabetes and advanced metabolic complications. Read Less

The overall objective of this 13-month randomized crossover study is to seek evidence demonstrating that daily consumption of peanuts and peanut products improve cardiometabolic, cognitive, and intestinal health in a racially diverse prediabetes population. Read Less

One in three American adults have prediabetes, and up to 70% of adults with prediabetes eventually develop type 2 diabetes. With the high cost of treating diabetes, cost-effective approaches are needed to reduce the incidence of diabetes. One new strategy may be to change when people eat. Studies in rodents suggest that a form of intermittent fasting that limits eating to a short time period each day and involves fasting for the rest of the day (time-restricted eating; TRE) improves blood sugar control and cardiovascular health. Preliminary studies suggest that TRE also improves blood sugar, weight loss, and cardiovascular health in humans. This study will be the first full-scale, controlled feeding trial to determine whether TRE can improve 24-hour blood sugar control, 24-hour blood pressure, and cardiovascular disease risk factors even when food intake is matched to the control group. This clinical trial will also determine whether the benefits of TRE depend on the time of day that people eat. Participants will be assigned to one of three groups: (1) 'Early TRE' (eat between \~8 am-3 pm), (2) 'Mid-day TRE' (eat between \~1 pm - 8 pm), or (3) Control Schedule (\~8 am - 8 pm) for 8 weeks. All food will be provided and matched between groups. Read Less

The goal of this 26 week randomized controlled clinical trial is to learn if using a real time continuous glucose monitor (CGM) in a healthy lifestyle program for adults with prediabetes at the YMCA can improve glucose levels, dietary habits and physical activity The main questions it aims to answer is * Does use of a CGM improve the percent of time spent with glucose values between 70-140 mg/dl * Does use of a CGM improve nutritional habits as measured by Picture Your Plate (PYP) score * Does use of a CGM improve physical activity as measured by International Physical Activity Questionnaire (IPAQ) score Researchers will compare individuals using real time CGM to those not using CGM Participants will be asked to: * attend weekly health coach sessions for 12 weeks followed by 3 monthly sessions. * attend a YMCA class of their choice * fill out questionnaires at baseline, 12 and 24 weeks * have an A1c blood test at baseline, 12 and 24 weeks. * wear a CGM. All participants will wear a blinded CGM at baseline. The intervention group will wear a real time CGM for 24 weeks. The control group will wear a blinded CGM for 10 days at 6, 12 and 24 weeks Read Less

Prediabetes effects 96 million people 18 years of age or older. It is important to identify treatment options to slow or prevent progression to diabetes. It is also critical to assess the potential of medications like sodium glucose transporter 2 inhibitors to reduce the risk of cardiovascular events and kidney complications, both common and costly complications of diabetes. This is a 12-week, open-label pilot feasibility study assessing the use of empagliflozin in prediabetes. Read Less

The proposed study uses a novel and rigorous randomized cross-over study design in youth (17-23y) with late and non-late chronotype (n=35 per group) to assess the glycemic effect of "aligning" an oral glucose tolerance test (OGTT) or first-meal of day to a subject's chronotype. Both groups will undergo 2 OGTTs (aligned and mis-aligned with chronotype) to compare glucose tolerance and insulin sensitivity within-subject (primary outcome) and between groups (Aim 1). Then, youth will also undergo two standardized meals (aligned and mis-aligned with chronotype) while wearing continuous glucose monitoring to compare post-prandial glucose excursions within-subject and between groups (Aim 2). A pilot Exploratory Aim 3 (n=12 per group) will investigate delayed melatonin patterns under dim-light as a potential pathophysiologic mechanism behind abnormal glucose tolerance in youth with late chronotype on morning OGTTs. Read Less

Identifying biomarkers of early pancreatic ductal adenocarcinoma (PDAC) could facilitate screening for individuals at higher than average risk and expedite the diagnosis in individuals with symptoms and substantially improve an individual's chance of surviving the disease. The investigators propose a longitudinal study of subjects at higher than average risk of PDAC in order to generate clinical data and bank serial blood specimens. Read Less

Despite the efficacy of intensive lifestyle interventions in prediabetes, the incidence of diabetes is rising, and thus there is a critical need for additional strategies to prevent diabetes and to reduce its cardiovascular complications in this high-risk population. Sleep apnea is a highly common condition in prediabetes, but it has been mostly ignored and undertreated in current practice. The proposed study will be the first to assess whether adding CPAP (continuous positive air pressure) treatment to a lifestyle intervention improves cardiometabolic outcomes beyond that achieved with lifestyle alone (i.e. current standard of care) in high-risk individuals with prediabetes. Read Less