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.
This research is being done to see if a study drug called amyl nitrite can be helpful with diagnosing different disorders affecting the lower esophageal sphincter in patients with dysphagia (difficulty swallowing foods) undergoing high resolution esophageal manometry (HRM). Dysphagia may be one of the symptoms of a condition known as idiopathic achalasia. Achalasia is a disorder of the esophagus, the tube that carries food from the mouth to the stomach. This affects the ability of the esophagus to move food toward the stomach. Pseudoachalasia is a secondary form of achalasia, which has very similar symptoms but is caused by different reasons. Because the treatments for achalasia and pseudoachalasia are different, it is important to correctly diagnose each condition. At this time, there is no way to distinguish the two with the current tests used at Johns Hopkins. Amyl nitrite relaxes vascular smooth muscle and has been studied previously as a potential means to separate achalasia from pseudoachalasia. Amyl nitrite is approved by the Food and Drug Administration (FDA) for the treatment of cardiac angina. It is not approved for use in motility testing and its use in this study is considered investigational. Investigators hope that the results from the proposed study could have significant clinical implications for patient management by helping doctors distinguish between achalasia and pseudoachalasia and allow them to choose appropriate treatment. Patients with dysphagia (difficulty swallowing foods) undergoing routinely scheduled high resolution esophageal manometry (HRM) may join this study.
This trial explores the immunologic effects of vemurafenib (BRAF inhibitor) and cobimetinib (MEK inhibitor), administered alone and in combination, to patients with advanced BRAF V600E/K mutant melanoma.
The primary purpose of this study is to assess the effect size of the change in Oswestry Disability Questionnaire (ODQ) score over the 8 week follow-up period between the video based instruction or standard of care hand-out with pictures and written instructions for subjects meeting the clinical prediction rule for lumbar stabilization. The second purpose will be to determine if there is a subset of physical examination and self-reported variables that are associated with having a successful result (ODQ improvement by at least 6 points) and if the subset of variables are affected by whether or not the subject was in the intervention (video) or control (handout) group.
The purpose of this study is to assess the use of a mobile health intervention to improve adherence to asthma medication among adolescents. The intervention consists of an inhaler sensor strap to monitor asthma inhaler use and a mobile phone application to remind and incentivize patients to use their medication. This study will assess medication use throughout a 12 week study in patients who receive a mobile app with reminders, asthma control as measured by the ACT [asthma control test], and lung function as measured by spirometry.
This phase II trial studies how well methylprednisolone sodium succinate works in treating patients with graft-versus-host disease (GVHD) of the gastrointestinal tract that has begun within 100 days of transplant (acute GVHD). Corticosteroids are a type of drug that reduces inflammation. Giving corticosteroid drugs, such as methylprednisolone sodium succinate, directly into the arteries of the gastrointestinal tract may help treat inflammation caused by GVHD. Giving methylprednisolone sodium succinate in addition to standard treatments may be more effective in treating GVHD.
The hypothesis of this study is that the addition of NovoTTF-100A System treatment to salvage chemotherapy will significantly increase time to treatment failure in the brain of small cell lung cancer patients.
This is a prospective, multicenter, open-label, non-randomized study evaluating the ability of [89]Zr-Df-IAb2M to detect local, regional and metastatic prostate cancer confirmed by pathology.
Anti-anginal drugs relieve ischemia and symptoms by reducing myocardial oxygen demand by reducing heart rate and or contractility (beta-blockers, phenylalkylamine and benzothiazepineate classes of calcium antagonists) or vasodilatation of the venous system (fall in pre-load) and coronary vessels. Late sodium channels remain open for longer in the presence of myocardial ischaemia. Ranolazine, a novel anti-anginal agent, acts by inhibiting the inward late inward sodium current (INaL), reducing intracellular sodium accumulation and consequently intracellular calcium overload via the sodium/calcium exchanger. It is currently thought that this reduction in intracellular calcium reduces diastolic myocardial stiffness and therefore compression of the small coronary vessels. There is considerable animal data to support this theory. There are good theoretical reasons to postulate that patients with chronically occluded vessels may derive less benefit from conventional anti-anginal agents, particularly vasodilators. The ischemic myocardium, subtended by the occluded vessel, will already be subject to significant concentrations of paracrine vasodilators such as adenosine. Ranolazine, therefore, may on the basis of its mechanism of action, provide greater relief of ischemia in such patients than conventional anti-anginal agents.
The goal of this registry is to review the data collected and research ways to improve patient safety, quality of care, and medical decision-making, reduce medical spending, and help advance orthopedic science and bioengineering.
This registry aims to assess the outcomes of patients undergoing EUS-guided interventions of pancreatic fluid collections and EUS examination of pancreatic cyst lesions.