Healthy Clinical Trials in Dallas, TX

The main purpose of this study is to determine effect of orforglipron capsule formulation on the amount of digoxin, rosuvastatin, acetaminophen, midazolam, and simvastatin (each given alone and together with orforglipron) that enters the bloodstream and how long it takes the body to eliminate them when administered orally in healthy overweight and obese participants. In addition, the effect of the orforglipron tablet on the amount of simvastatin that enters the bloodstream and how long it takes the body to eliminate it will be evaluated. The study will also assess the effect of sodium bicarbonate when administered alone with simvastatin versus orforglipron capsule containing sodium bicarbonate administered with simvastatin. The safety and tolerability of orforglipron and information about any side effects experienced will be collected. Study will be conducted in two parts, with part 1 and 2 lasting up to approximately 23 and 24 weeks each, including the screening period. Read Less

The main purpose of this study is to assess the safety and tolerability of a single dose of LY3938577 in healthy participants and participants with Type 2 Diabetes Mellitus (T2DM) (Part A) and multiple doses of LY3938577 in participants with T2DM (Part B). The study will last approximately 6 weeks for Part A and approximately 10 weeks for Part B respectively. Read Less

This study will randomly assign 2,300 older adults on waiting lists at nine Meals on Wheels programs in Florida, Texas, North Carolina, South Carolina, and California into two groups who will receive: (a) daily delivery of meals, five days a week or (b) a shipment of 10 frozen meals, every two weeks. Researchers will examine participants' Medicare claims to understand if differences in healthcare utilization occur between the two groups within six months after they start receiving meals. Researchers will also ask participants questions prior to receiving meals, and again at three months, to understand how meals impact their ability to obtain food, their feelings of loneliness, and their overall quality of life. The primary study outcome will be the ratio of days spent in institutional settings (i.e., hospital, nursing home) in the six months after participants begin receiving meals. The secondary outcomes include the ratio of days spent in institutional settings in the three months after participants begin receiving meals, food insecurity, subjective isolation/loneliness, and health-related quality of life. The team will also examine differences in dietary intake between the two groups as an exploratory outcome. Read Less

Chronic corticosteroid (CS) exposure is associated with changes in memory and the hippocampus in both humans and in animal models. The hippocampus has a high concentration of glucocorticoid receptors (GCRs), and the pre-clinical literature demonstrates shortening of apical dendrites in the CA3 region of the hippocampus and decreased neurogenesis in the dentate gyrus (DG) following CS administration. In humans, both stress and CS exposure are associated with a decline in declarative memory performance (a process mediated by the hippocampus). Impairment in declarative memory and hippocampal atrophy are reported in patients with excessive CS release due to Cushing's disease, and, by our group, in patients receiving prescription CS therapy. These findings have important implications for patients with mood disorders, as a large subset of people with major depressive disorder (MDD) show evidence of HPA axis activation, elevated cortisol and, importantly, resistance to the effects of CSs on both the HPA axis and on declarative memory. Thus, resistance to corticosteroids appears to be a consequence of MDD. this study will examine changes in declarative memory, as well as use state-of-the-art high-resolution multimodal neuroimaging, including structural and functional (i.e., task-based and resting state) MRI, in both men and women healthy controls, and, as an exploratory aim, a depressed group, given 3-day exposures to hydrocortisone (160 mg/day) or placebo. The study will translate preclinical findings to humans, provide valuable data on possible sex differences in the response to cortisol and, for the first time, identify specific hippocampal subfields (e.g., CA3/DG) in humans that are most sensitive to acute CS effects. Using resting state fMRI data and whole brain connectomics using graph theoretical approaches, we will determine the effects of cortisol exposure on functional brain networks. Furthermore, this will be the first study to use neuroimaging to compare the brain's response to CSs in people with depression vs. controls, and determine whether depressed people demonstrate glucocorticoid resistance within the hippocampus. We hypothesize that hippocampal response to acute CSs will be greatest in the CA3/DG subfield, greater in women than in men, and that depressed people will show a blunted hippocampal response to CSs compared to controls. A multidisciplinary research team with extensive experience in CS effects on the brain and hippocampal subfield neuroimaging, and a prior history of research collaboration, will conduct the project. Read Less

The primary purpose of this study is to determine the relative bioavailability of brensocatib between the pediatric oral solution and oral tablets in healthy participants. Read Less

The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased absorption of dietary oxalate, which would lead to increased urinary excretion of oxalate. The study will recruit adult patients with a history of calcium oxalate kidney stones and healthy volunteers without kidney stones. Participants will ingest fixed diets containing low and moderately high amounts of oxalate for 5 days at a time ingest a soluble form of oxalate and sugar preparations to test gut permeability collect urine, blood, stool and breath sample during the fixed diets and the soluble oxalate test Read Less

The purpose of this study is to investigate repeated doses of Lu AF28996 in healthy participants and co-administered with two other compounds, and in a separate cohort following co-administration with antibiotics, to see how well the doses are tolerated and what the body does to the drug after administering it. Read Less

Food insecurity impacts 1 in 8 people in the United States and 1 in 4 people receiving cancer treatment. Food insecurity is associated with poor dietary quality, adverse health conditions (e.g., Type 2 diabetes, overweight and obesity, hypertension), and worse cancer treatment outcomes. To effectively address food insecurity among people with cancer, screening and effective response programs are needed. The Food to Overcome Disparities (FOOD) program screens breast cancer patients for food insecurity and refers people who screen positive to 11 clinic pantries across New York City. In addition to clinic referrals, researchers have found the addition of monthly grocery vouchers or home grocery delivery to be even more effective at improving treatment completion rates than pantry access alone. Another innovative food security strategy, nutritious no-prep, ready-to-eat meals may also be helpful for patients given that no-prep meals reduce the time and physical demand of food preparation. Nutritious no-prep, ready-to-eat meals have been positively associated with improvements in healthy eating index (HEI) scores, fewer instances of hypoglycemia, and improved quality of life among people with food insecurity that have diabetes, but has yet to be tested among patients with cancer. People receiving cancer treatment, such as infusion services, often report fatigue and other barriers to food preparation, which make no-prep, ready-to-eat meals another potential solution to cancer-specific challenges to healthy eating. In the present study the investigators will test which evidence-based strategies are most effective and well-liked by patients and will inform the development of a comprehensive food security response program at the Harold C. Simmons Comprehensive Cancer Center. Read Less

For an overview of the study and link TO REGISTER please go to -- https://brainhealth.utdallas.edu/programs/the-brainhealth-project/ The BrainHealth Project is a ten-year, longitudinal study focused on identifying determinants of brain health and performance. Participants will have the opportunity to complete semi-annual (twice a year) online assessments to track their performance over time. In between semi-annual assessments, participants will have access to online trainings and ongoing supplemental content regarding ways to optimize brain health and performance. Online one-on-one coaching sessions will be offered to participants to answer questions and provide support in applying the information to their daily lives. A small portion of participants will be invited to participate in the brain imaging portion of this study. The main objectives are: (i) to characterize lifestyle, cognitive, and behavioral markers related to an individual's cognitive function from adolescent to elderly ages, (ii) to assess the neural/biological determinants predictive of maintenance of brain health, and (iii) to evaluate the impact of available cognitive and lifestyle interventions on improving and maintaining brain health and performance. Read Less

This is a cross-sectional pilot study designed to establish hot and cold cognitive functions and underlying neurocircuitry in older adults with MDD. The investigators will study 60 participants aged 21-80 years old with MDD. All participants will undergo clinical and neurocognitive assessment, and Magnetoencephalography (MEG)/Magnetic resonance imaging (MRI) procedures at one time point. The investigators will also enroll 60 demographically matched comparable, never-depressed healthy participants (controls) to establish cognitive benchmarks. Healthy controls will complete clinical and neurocognitive measures at one time point. To attain a balanced sample of adults across the lifespan, the investigators will enroll participants such that each age epoch (e.g., 21-30, 31-40, etc.) has a total of ten subjects (n=10) in both the healthy control cohort and depressed cohort. Read Less

This research is a 5-year observational, longitudinal registry study with no treatment or medication provided as part of participation. Individuals with current or lifetime stimulant use disorder, in addition to healthy control individuals, may be eligible to participate in this study. A variety of assessments and tasks including Magnetic Resonance Imaging (MRI), Electroencephalography (EEG), blood draws, urine drug screens, and both self-report and clinician-rated assessments will be used to assess biomarkers in this population. This study has a visit schedule of four in-person visits and eight remote visits per year. Read Less

Learn about the safety and tolerability of CK-3828136 after a single dose and multiple doses in healthy subjects. Find out how much CK-3828136 is in the blood after a single dose and multiple doses. Determine the effect different doses of CK-3828136 on the pumping function of the heart. Read Less