All Clinical Trials

This project is designed to determine if a computer-delivered cognitive-behavioral treatment can improve the otherwise poor alcohol use disorder treatment outcomes for individuals with a co-occurring anxiety disorder. In the past, the investigators showed that this treatment does improve outcomes for these individuals when delivered by a therapist. If the present work shows that the computer-delivered version is also effective, it would provide an inexpensive program with virtually unlimited scalability to enable access to the treatment by many more individuals than is currently the case. Read Less

This protocol will characterize the effects of deep brain stimulation (DBS) location (both adverse and beneficial) on motor signs in people with Parkinson's disease (PD). This information can be used to inform future DBS protocols to tailor stimulation to the specific needs of a patient. If targeted dorsal GP stimulation is shown to significantly improve motor features that are typically resistant to dopamine replacement therapy, these experiments will likely have major impact on clinical practice by providing a potential strategy to these medically intractable symptoms. Read Less

This is a randomized pilot study of Coronary CT Angiography (CCTA) for coronary atherosclerosis vs. Usual Care in patients with prostate cancer who are either planning to begin, or are currently taking androgen deprivation therapy (ADT) . Read Less

The goal of this research study supported by the HEAL Initiative (https://heal.nih.gov) is to investigate the effects transcutaneous auricular neurostimulation (tAN), as delivered through the Sparrow Ascent device, on helping people with co-occurring posttraumatic stress disorder (PTSD) and opioid use disorder (OUD) start and continue buprenorphine treatment. The main questions it aims to answer are: * Does the tAN help participants with OUD and PTSD remain in buprenorphine therapy for three months after starting use of the device (i.e., randomization to treatment condition)? * Do participants find the Sparrow Ascent device to be acceptable and use it? * Do participants find the Sparrow Ascent device to be tolerable and comfortable to use? * Do participants find the Sparrow Ascent device to be easy to use with their buprenorphine therapy? * Do participants follow the minimum recommended dose schedule for the Sparrow Ascent device most of the time? Participants will complete a baseline assessment to make sure that they are eligible to participate in the study. The assessment captures information about demographics, substance use and treatment history, opioid withdrawal symptoms and craving, difficult life experiences and PTSD symptoms, mental health and treatment history, quality of life, and recovery resources. After the assessment is complete and the participant has been inducted on buprenorphine as part of standard care, they are randomized to one of two treatment conditions: active tAN and placebo. Participants are trained on how to use the device and return for 12 weekly research visits to check on recent substance use and craving, PTSD symptoms, and their experience using the device. After 12 weeks of using the device, participants will complete a post-active treatment assessment that is nearly identical to the baseline assessment to see if there have been changes in these areas. Researchers will access the medical record to determine whether there is a current prescription for buprenorphine at three months and six months after randomization. Read Less

The purpose of this study is to investigate how standing and sitting balance control is altered after spinal cord injury (SCI) and how a new type of robotic assistive device may be used to improve muscle function. This device is called the Tethered Pelvic Assist Device, or TPAD. The main aims are to: 1. Examine muscle activation patterns generated during different types of standing in spinal cord injured individuals using robotic assistance or self-assistance for balance 2 and 3. Examine the effectiveness of robotic-assisted stand training in the improvement of posture control during different types of standing and sitting in spinal cord injured individuals. Participants will be placed into one of 5 groups based on a physical classification of their spinal cord injury: Group 1: * Individuals with SCI that can stand independently * Will receive TPAD training * Will undergo standing, posture, sitting, and stepping assessments * Participation in this group will last about six months Group 2: * Individuals with SCI that cannot stand independently * Will receive TPAD training * Will undergo standing, posture, sitting, and stepping assessments * Participation in this group will last about 6 months Group 3: * Individuals with SCI that can stand independently * Will undergo standing and posture assessments * Participation in this group will last about 2 weeks Group 4: * Individuals with SCI that cannot stand independently * Will undergo standing and posture assessments * Participation in this group will last about 2 weeks Group 5: * Individuals without a SCI * Will undergo standing, posture, and sitting assessments * Participation in this group will last about 2 weeks Read Less

This study aims to evaluate the feasibility, safety, and tolerability of an innovative approach to treating Major Depressive Disorder (MDD), particularly in cases where patients have not responded well to traditional therapies. Specifically, the objective is to evaluate the antidepressant effects of a Dose-Optimized and Spaced Transcranial Direct Current Stimulation (DOS-tDCS) protocol in participants with treatment-resistant depression (TRD) compared to spaced tDCS only and sham tDCS in a 3-arm randomized controlled trial (RCT). The proposed method involves applying low-intensity electrical currents through the scalp in a manner that is both more intense and more frequently spaced than standard treatments. This approach is hypothesized to lead to a significant reduction in depressive symptoms. Participants in the study will be randomly assigned to one of three groups: the experimental group receiving the DOS-tDCS treatment, a group receiving spaced tDCS only, or a control group receiving a sham (placebo) treatment. Outcomes will be measured over a period of six weeks. The study's goal is to offer a potentially more accessible and effective treatment option for individuals who have not benefited from existing MDD therapies. Read Less

The purpose of this study is to utilize the radioactive positron emission tomography (PET) tracer \[11C\]UCB-J to test the neural synaptic pruning hypothesis of schizophrenia. This imaging method allows for the quantification of synaptic density in the living human brain and has the unprecedented ability to directly examine the synaptic pathology underlying neuropsychiatric disease. The neural synaptic pruning hypothesis posits that a key pathogenic process of schizophrenia is the over-exuberant elimination of neural synapses during development. The confirmation of reduced synaptic density in schizophrenia as evidenced by \[11C\]UCB-J has the potential to lead to a number of ground-breaking clinical innovations, such as laboratory-based diagnostics and prognostics, and novel, disease-modifying treatments. Read Less

The purpose of this study is to examine how effective rituximab or tocilizumab are in treating side effects for people who are receiving immunotherapy treatment requiring prolonged steroid use. Immune-related side effects are caused by the activation of the immune system. Because rituximab and tocilizumab have been shown to effectively in treating other diseased that involve immune system activation, this study seeks to evaluate how effective they will be in treating immune-related side effects in people receiving immunotherapy treatment for cancer. Read Less

This pilot clinical study will investigate if Zirconium-89 (89Zr) panitumumab- Positron Emission Tomography/ Magnetic Resonance Imaging (PET/MRI) imaging can more accurately determine size and location of primary tumors compared to standard of care Fludeoxyglucose (18F-FDG) -PET/MRI in newly diagnosed patients with head and neck squamous cell carcinoma (HNSCC) who are undergoing surgical resection. This study is for imaging purposes only and is not a treatment study. The results of this study will not change the clinical treatment plan. Read Less

The investigators' goal is to show that in hypertensive men and women with left ventricular hypertrophy (LVH) treatment with a mineralocorticoid receptor (MR) antagonist, versus a thiazide-like diuretic, will improve coronary microvascular function and cardiac efficiency, which will associate with improvements in LV structure and function. The investigators will achieve this through a randomized, controlled, basic experimental study involving humans (BESH). Read Less

This clinical trial evaluates the effectiveness of focal ablation with either focal cryotherapy or high intensity frequency ultrasound for the treatment of men with localized prostate cancer. Focal cryotherapy kills tumor cells by freezing them. High intensity frequency ultrasound uses highly focused ultrasound waves to produce heat and destroy tumor cells. Read Less

This is a single site, open label, Phase 1 study using a 3 + 3 dose escalation design in two cohorts of adults with recurrent, platinum-resistant ovarian tumors. Read Less