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.
In this line of research, the researchers are examining the influence of relevance of a salient item on task performance, depending on overall task set.
Pulse oximeters are common medical devices used to measure blood oxygen saturation (SpO2). These devices are either stand-alone or integrated into physiologic monitoring systems, using 2 wavelengths of light to determine SpO2. With recent advances in technology, Spatial Frequency Domain Imaging (SFDI) uses a range of light wavelengths from red to near-infrared (NIR), and smartphones such as Apple Watch, and transcutaneous oximetry TCOM now have pulse oximetry capabilities. Since it is possible that most patients could utilize this technology, we sought to assess the accuracy, reliability, and usability of these oximeters and compare outcomes. In this study, a cohort of 20 healthy volunteers above the age of 18 including males and females of different skin colors will be assessed at the same site and data will be compared. We aim to provide a set of data that will support the clinical and scientific community and identify more than one reliable skin oxygen measurement modality.
The purpose of this study is to whether exposure to waterpipe tobacco warnings reduce young adults' intentions to smoke waterpipe in the future.
The overall purpose of this project is to establish the capability of screening for Angelman syndrome (AS) and Prader-Willi syndrome (PWS) in public health newborn screening (NBS) programs, with an aim of developing and validating a screening test for AS and PWS.
Purpose: To better understand the impact of different front-of-package labels (FOPLs) on consumer purchasing intentions and ability to identify unhealthy foods. Participants: ~8,000 Colombians, recruited from Offerwise, that are 18 years or older. Procedures (methods): Participants will be randomly assigned to view images of food and drink products with either a nutrient warning label, Guideline Daily Amount label, Nutriscore label, or no-label control. They will be asked a series of questions about the products and the labels (excluding control group) on them. Questions will also include standard demographic and health related variables.
A clinical study has been identified as a requirement for the RDSL (Theia). This study involves a clinical comparison of the imaging from the RDSL with that of a predicate device. The clinical evaluation showed that there remains some residual risk in the practitioner's ability to use the imaging from the RDSL to detect pathologies at the same level as when using the imaging function on a predicate device. The aim of this comparative study is to determine the degree, if any, of difference in using images captured from the RDSL for clinical inspection of pathologies, when compared to images captured from a predicate device. Due to the involvement of real patients during the study, ethics approval was sought prior to commencement. This study is limited to the clinical benefits of the device. An additional Human factors study has been conducted to assess the useability of the device Images were taken of healthy eyes and eyes with pathology (with images of several pathologies from each major pathology group to give a full range) on both the predicate device, and the RDSL.
Conditioned pain modulation (CPM) is the behavioral measure of diffuse noxious inhibitory control (DNIC), an endogenous pain inhibitory pathway in which pain inhibits pain. Conditioned pain modulation is less efficient in individuals with chronic pain conditions, and it is a predictor for the development of chronic pain. Continuous stimulation of central/cortical mechanisms through engaging CPM might alter pain processing and improve pain inhibition. Healthy participants will be randomly assigned to one of three groups: High Exposure (HE), Low Exposure (LE), and No Exposure (NE). Pre-and post-intervention pain sensitivity including conditioned pain modulation will be assessed. The study will assess the central pain modulatory mechanisms (measured by CPM) that have differential changes in participants who receive high exposure CPM as an intervention from those who receive low or no exposure. The study will also assess the magnitude and efficiency of CPM contributing additional variance to a regression model predicting pain sensitivity after positive and negative affect, pain anxiety, and depression are considered in the model, establishing measures of central pain processing, like CPM, as unique contributors to pain intensity.
The purpose of this study is to to assess the ability of 5 Gastro-Intestinal (GI) surgeons, within liver surgery, the readers, to identify pre-defined anatomical landmarks in liver images processed by HS2, and assessment of landmark distance between CT and Holographic visualization (HV).
A randomized, blinded, placebo-controlled study of health and wellness product formulations and their effects on overall health
The study will be a double-blind randomized control trial comparing 4% lidocaine patch placed over the sacrum 3 minutes prior to a percutaneous nerve evaluation (PNE) procedure to a placebo patch in patients already scheduled to undergo a medically indicated percutaneous nerve evaluation (PNE). VAS pain score, The volume of injectable lidocaine used, Patient Satisfaction Score, rate of successful PNE (defined as successful placement of wire in the S3 spinal foramen), and the amplitude of perineal stimulation on a Likert scale will be collected immediately after the procedure. Patients will follow up in 1 week - as is standard of care with the PNE procedure. Adverse events such as pain or change in sensation will be recorded. Number of voids and incontinence episodes per day after the PNE procedure will be recorded. Overall satisfaction score will be recorded at that time. Rate of progression to Sacral nerve stimulator implantation will be collected. The investigators hypothesize that patients in the lidocaine patch group will experience significantly less pain at the time of PNE as measured by a lower change in VAS pain score when compared with the control group.