There are about 173942 clinical studies being (or have been) conducted in United States. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The purpose of this study is to determine whether a single strain capsulated probiotic, when used after standard C. difficile antibiotic therapy, is effective in reducing the risk of infection recurrence mediated by a decrease in colonization by toxigenic C. difficile. This study will include adults with a history of two episodes of C. difficile infection (CDI).
Antigen self-testing kits are more available at this stage in the pandemic, but among vulnerable populations, use is still low and instructions for antigen testing are not typically designed for low health literacy populations. Studies are needed to explore access and use of antigen tests among vulnerable populations and examine if low-health-literacy-designed interventions improve COVID-19 testing decisions and behaviors. This study will focus on understanding factors associated with rapid COVID-19 testing, specifically. The primary objectives of the embedded study are to 1) Determine the effectiveness of community-level intervention using door-to-door recruitment and education in increasing COVID-19 testing and 2) Compare the effectiveness of the CHW- Facilitated Self-Sampling Intervention (FSSI) vs. CHW Testing Navigation Intervention (TNI).
This study will examine the pharmacokinetics and pharmacodynamics of delta-9-tetrahydrocannabinol (THC)-infused chocolates, gummies, and drinks. Healthy adults (N=40) will complete 9 drug administration sessions, including an overnight stay prior to each session. Participants will consume THC containing products in a fasted state; following drug administration, the participants will complete cognitive and psychomotor tasks, subjective assessments, have blood collected, and vital signs monitored.
This is a prospective, multicenter, sample collection study using DermTech's non-invasive skin collection kits to evaluate the mutation burden of non-lesional facial skin from subjects with a documented history of numerous basal cell carcinomas, squamous cell carcinomas or melanomas compared to that of subjects with no history of skin cancer matched for age, sex and Fitzpatrick phototype.
Most people with psoriasis have very limited disease, yet that disease may still have a large impact on their lives. While limited psoriasis may be amenable to topical treatment, patients are exceptionally poorly adherent to topical treatment, especially over the long run.
Background: Idiopathic CD4 lymphopenia (ICL) is a syndrome characterized by low levels of certain immune cells called CD4 T cells. The low CD4 T cells renders people with ICL prone to many types of severe infections, autoimmune diseases, and cancers. Although these infections and diseases can be treated whenever occur, there is currently no treatment that targeting the underlying deficiency of CD4 T cells can provide a definitive treatment for people with ICL. Objective: To test a new drug (NT-17) in people with ICL which can increase the number of CD4 T cells Eligibility: People aged 18 to 75 years with ICL who are also enrolled in NIH protocol 09-I-0102. Design: Participants will be screened. They will have a physical exam and blood tests. Some participants with high suspicion of central nervous system infection or history of such infections may also undergo a lumbar puncture. A thin needle will be inserted into their lower back to draw out a sample of the fluid around their spinal cord. Participants will receive 3 doses of NT-17, each about 12 weeks apart. NT-17 is injected into the muscle of the upper arm, thigh, or buttock. They will visit the clinic 5 days before each dose and again 2 and 4 weeks after each dose. Blood will be drawn at all visits. Participants will undergo leukapheresis 3 times. Blood will be drawn from a needle in one arm. The blood will pass through a machine that separates out the white blood cells. The remaining blood will be given back through a second needle in the other arm. Some visits will include a rectal swab. Some participants may have additional tests, including a skin exam, skin biopsies, and medical imaging. Participants will have 3 follow-up visits every 3 months after they finish treatment.
This is a phase Ib, randomized, double-blind, placebo-controlled study to evaluate safety, tolerability, efficacy and pharmacokinetics of ASC10 tablets in mild or moderate COVID-19 subjects.
The purpose of this study is to examine if educational intervention in high risk patients can lead to decreased hospital readmissions when compared to patients who are not in the intervention program. Additionally, to determine patient satisfaction with the educational program.
The goal of this clinical trial is to demonstrate potential improvements in clinical trial methods relating to dementia and cognitive decline. The main questions it aims to answer are: - Can an intervention's outcome be better assessed by a latent variable ("δ") integrating cognitive performance with functional status? - Can latent biomarkers of δ guide the selection of an intervention that will modulate dementia severity? - Can a latent variable, derived from information collected remotely from caregivers, preselect subjects most likely to respond to the intervention? - Is the effect of the intervention in fact medicated by changes in the targeted biomarker? In this case, the biomarker will be a latent variable derived from several proteins measured in blood (i.e., so-called "adipokines"). The intervention will be donepezil, a medication approved for the treatment of Alzheimer's Disease, but only recently associated with adipokine changes. Participants with cognitive impairment and their caregivers will be interviewed by telephone and those with cognitive impairment will be treated for six-months with donepezil. On the basis of the caregiver's report, the cognitively impaired subjects will be assigned to two groups based on a prediction of their response to donepezil. Researchers will compare those groups to see if dementia severity, as measured by δ, improves in predicted responders, and whether the change in the d-score is mediated by changes in adipokines.
The purpose of this study is to examine whether experiencing a social stressor prior to the collection of neuroimaging measures is associated with differences in brain activation in healthy participants.