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 visual system has increasingly been recognized as an important site of injury in patients with schizophrenia and other psychoses. Visual system alterations manifest as visual perceptual aberrations, deficits in visual processing, and visual hallucinations. These visual symptoms are associated with worse symptoms, poorer outcome and resistance to treatment. A recent study using brain lesion mapping of visual hallucinations and identified a causal location in the part of the brain that processes visual information (visual cortex). The association between visual cortex activation and visual hallucinations suggests that this region could be targeted using noninvasive brain stimulation. Two case studies have found that brain stimulation to the visual cortex improved visual hallucinations in treatment resistant patients with psychosis. While promising it is unclear whether these symptom reductions resulted from activity changes in the visual cortex or not. Here we aim to answer the question whether noninvasive brain stimulation when optimally targeted to the visual cortex can improve brain activity, visual processing and visual hallucinations. The knowledge gained from this study will contribute to the field of vision by providing a marker for clinical response and by personalizing treatment for patients with psychosis suffering from visual symptoms. This grant will allow us to set the foundation for a larger more targeted study utilizing noninvasive brain stimulation to improve visual symptoms in patients with psychosis.
Truvada®, an oral pill comprised of two anti-retroviral compounds, emtricitabine (FTC) and tenofovir disoproxil fumarate (TDF), is currently the only drug combination approved for pre-exposure prophylaxis (PrEP) in women exposed to high HIV risk through vaginal acquisition. Adherence to the one pill per day regimen is crucial for its effectiveness in reducing the risk of acquiring HIV. Currently, there is no available point of care diagnostic test to quickly measure blood levels of tenofovir in the clinic. This study will determine whether a tenofovir (TFV) aptamer-based biosensor (aptasensor) can detect TFV in biological fluids from women randomized to different dosing regimens representing high and low adherence.
This clinical trial studies the different types of investigational imaging techniques called sequences during magnetic resonance imaging (MRI) of the head before and after radiation therapy in patients with cancer that has spread to the brain (intracranial metastases). This clinical trial also compares these new techniques with standard MRI imaging to see if sequences provide better images. Diagnostic procedures, such as MRI, may help find and diagnose solid organ cancer and find out how far the disease has spread.
The purpose of this study is to assess the efficacy and safety of Proxalutamide (GT0918) as a treatment for outpatients COVID-19 subjects.
This clinical trial investigates if certain electronic games may be effective in improving attention and memory function in cancer survivors. Cancer related cognitive impairment (CRCI) is an issue experienced by many cancer patients/survivors. CRCI includes perceived or objective problems with memory, executive function, and attention/concentration. CRCI has a negative impact on survivors' ability to work, carry out routine activities, and engage in social and family relationships. CRCI may result in significant distress and reduced quality of life. Certain electronic games may help improve attention and memory function in cancer survivors and reduce symptoms of CRCI.
The pandemic caused by the novel coronavirus SARS-CoV-2 has resulted in substantial global morbidity and mortality including in Oklahoma and caused unprecedented interruptions in nearly all aspects of our lives. The population of the state of Oklahoma is at particular risk to SARS-CoV-2 due to its large rural population, strained healthcare system, and poor overall health. The Community-Engaged Approaches to Testing in Community and Healthcare Settings for Underserved Populations (CATCH-UP) program will involve both practice-based and community-based approaches to maximize the reach of the RADx-UP consortium, broaden the potential perspectives that could be captured, and compare the effectiveness of strategies. The interventions will be pragmatic to allow CATCH-UP to respond to changing attitudes, barriers, and environments as the pandemic progresses as well as expected technology developments to produce more effective viral testing that can provide rapid results to patients. The investigators will assist 50 small primary care practices to implement guidelines-based testing and patient education about COVID-19 and risk mitigation strategies. The project's community-based approach is designed to rapidly respond to community testing needs by deploying mobile testing sites that will provide operational support to increase the efficiency and the existing capacity for state-wide testing by Oklahoma's public health authorities. Together, the investigators estimate that the CATCH-UP program will result in at least 105,000 SARS-CoV-2 tests performed during the first year of implementation. A comprehensive, ongoing evaluation will be performed to analyze patient and provider attitudes, barriers and facilitators of viral testing, identified health disparities caused by COVID-19, effectiveness of the intervention in both settings, and to allow robust collaboration with other RADx-UP consortium sites.
The hypothesis is that oral supplementation of L-carnosine will inhibit PHDs, increase HIF1-translocation and angiogenesis and thus improve the functioning of lower extremities in PAD patients. Primary Aim: 1. Compare the effect of carnosine and placebo supplementation on the 6MWT in PAD patients with and without claudication. Secondary Aim: 1. Determine whether carnosine supplementation improves the pain-free treadmill walking ability of the subjects supplemented with carnosine compared to placebo. 2. Compare the levels of carnosine, VEGF, HIF-1α, and PHDs activity in the skeletal muscle before and after placebo and carnosine supplementation. 3. Compare the levels of EPCs (CD34+/CD133+), inflammatory markers (serum amyloid A, hsCRP) and thrombotic markers (fibrinogen, homocysteine) as cardiovascular risk markers in these subjects. 4. Explore the effects of race and gender on VEG, carnosine, and HIF-1α levels in both groups.
This is a Phase 1, interventional, non-randomized, experimental infection model study in healthy adult males (N=up to 25) between the ages of 18-35 at study enrollment. The study is designed to test the requirements of predicted N. gonorrhoeae virulence determinants for gonococcal infection in the male urethra through infection with engineered mutants of N. gonorrhoeae. We predict that mutations abolishing expression of N. gonorrhoeae virulence determinants will eliminate or significantly reduce gonococcal infectivity or the ability to induce inflammation in an infected individual, thus identifying potential vaccine candidates. Study duration will be 1 year, and the duration for all participants will be about 3 weeks. The primary objective of the study is to compare the ability of different engineered mutants of Neisseria gonorrhoeae to cause a clinical infection (signs or symptoms of urethritis such as discomfort during urination, urethral discharge, etc.) in the male urethra.
Common mental disorders (CMDs) like depression and anxiety account for a large proportion of disability worldwide. Access to effective treatments like cognitive-behavioral therapy (CBT) is limited and has not reduced the public health burden of psychopathology. For patients with mild-moderate CMDs, lower-intensity treatments like guided self-help CBT (GSH-CBT) are effective and more scalable (e.g., via the internet). The advent of social media has opened avenues for dissemination of GSH-CBTs and allows for passive sensing of mood, thinking, behavior, and social networks. We propose to leverage a social media platform used by over a fifth of the United States (Twitter) as a recruitment tool to virtually screen over 150 individuals, recruit N=60 to a 5-week course of GSH-CBT, and extract social media data from individuals engaged in GSH-CBT. Sociodemographic and social media data will be used to predict engagement, outcomes, and processes in GSH-CBT.
It is standard teaching that the top layer of sutures should be placed 3-5mm from the wound edge. However, there is lack of data regarding the most optimal placement of sutures from the wound edge for the best cosmetic outcome. The research team wish to determine if sutures placed closer to the wound edge (2mm) or farther from the wound edge (5mm) makes a difference in the cosmetic outcome of the scar.