There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
Graves' disease (MIM 27500) is the leading cause of hyperthyroidism worldwide. The prevalence of Graves' disease is quite high (2.7% in women), and there is solid evidence of genetic predisposition. Despite its clinical and scientific significance, Graves' disease is still mysterious in terms of its susceptibility genes or pathophysiological mechanisms. The immune repertoire, being the sum of T and B lymphocytes in a body at any given time, is both a snapshot and a historical record of a person's immune function. Thanks to the power of next-generation sequencing (NGS), massively parallel sequencing of the B cell and T cell receptors suddenly becomes plausible, and opens a door for many creative approaches to study immune related diseases. The ultimate goal of this project is to use both the NGS deep sequencing and immune repertoire experiment to perform Graves' disease sub-group genetic fine mapping, and to identify Graves' disease-specific T cell and B cell receptors. Furthermore, using the immune repertoire approach, investigators want to study the critical epitopes of thyroid auto-antigens, and to delineate the pathophysiological steps in various disease stages and in various sub-groups. Investigators expect to solve the immune repertoire of Graves' disease of different sub-group presentations and at various disease activity stages.
This study involves the use of an experimental device which will measure how much propofol is present in your exhaled breath during surgery compared to how much is in your blood. The study results will look at whether the device is as accurate as conventional methods for measuring propofol levels during surgery.
This is a randomized, open label, parallel two arm, clinical study, which compare the Bair Hugger forced-air warming blanket and the conventional warming care practice in China on patients undergoing major surgery to determine the impact of maintaining normothermia on intraoperative blood loss, requirement for transfusion of packed red blood cells and the changes of coagulation function.
The purpose of this study is to compare clopidogrel with ticagrelor which one has stronger anti-inflammation effect to protect against type 2 diabetes-induced vascular damage.
To compare oral (PO) to intravenous (IV) acetaminophen with postoperative pain scores, and consumptions of opiates, among orthopedic surgery patients undergoing total knee replacement with spinal anesthesia. Our hypothesis is that IV acetaminophen patients will have improved analgesia, less opioid consumption, a lower percentage of patients rescuing, or a longer time to first rescue with IV acetaminophen. The investigators will compare the efficacies of oral and intravenous acetaminophen for postoperative pain control, and utilization of opiates as rescue agents.
The purpose of this study is to evaluate whether fluorescence and reflectance spectroscopy can improve the ability to detect the presence of premalignant lesions on the cervix.
Obstructive sleep apnea (OSA) is a situation of repetitive upper airway obstruction during sleep. For patients with severe OSA, continuous positive airway pressure (CPAP) therapy was the standard therapy, especially those with daytime sleepiness and cardiovascular comorbidities. Although CPAP is effective in OSA treatment, the poor adherence due to high pressure was often reported. Instead, oral appliance (OA) was the alternative for those who could not tolerance CPAP or mild to moderate OSA. Oral appliance was less effective in compared with CPAP, but OA is more tolerable and acceptable in OSA patients. Only one observation study addressed the effects of the combinations of OA and CPAP in OSA patients . The pilot study displayed combination therapy of CPAP and OA is effective in OSA patients and could decrease CPAP pressure. However, the study enrolled the patients with CPAP intolerance according to the subjective chief complaint, not the objective CPAP pressure data. In the present study, we studied the effects of combinations of CPAP and OA for patients with severe OSA who could not tolerate CPAP with high-pressure setting.
Several surveys had revealed that Tibetan adults had high prevalence of hypertension. However, there was no research studying the antihypertensive effect of the known drugs in Tibetan. The main arms of our study were to determine if the efficacy of lowing blood pressure and protecting target organ damage differs between nitrendipine and Hydrochlorothiazide in mild hypertension in Tibetan, and to determine if the efficacy of lowing blood pressure and protecting target organ damage differs between captopril plus Hydrochlorothiazide and Beijing hypotensive No.0 in moderate and severe Tibetan hypertension.
Chronic obstructive pulmonary disease has become a serious global health care and public health problems due to its high prevalence, high morbidity and heavy economic burden. Acute exacerbation of chronic obstructive pulmonary disease is one of the most important causes of death in patients with COPD. Systemic corticosteroids therapy is recommended in COPD exacerbations. In clinical practice for the treatment of acute exacerbation of COPD， antibiotic application is still controversial. Evidence from current guideline is based on strict criteria from randomized controlled trials, thus the given condition is simplified. Patients meet the criteria account for the minority in the real world. Therefore, it is still not clear whether most patients benefit from the recommended treatment. In our design, hospitalized patients with acute exacerbation of COPD will be enrolled, with their treatment, arterial hypoxemia, recovery time and length of hospitalization being observed. The main purpose is to evaluate the benefit effect of current recommended treatment of acute exacerbation of COPD in the real world.
Rationale: Compared with balloon angioplasty, implantation of bare metal stents (BMS) and drug eluting stents (DES) have shown to reduce repeat target lesion revascularization in primary percutaneous coronary intervention (PPCI). However, this did not result in a reduction of mortality or recurrent myocardial infarction. Furthermore, there are concerns of the occurrence of stent thrombosis. The PAPPA-pilot study, evaluating safety and feasibility of using a drug-coated balloon (DCB) only strategy in PPCI, showed good short- and long-term clinical results, with sustained safety and efficacy at 12 months follow-up. To date little is known about the long-term effects of this treatment modality in STEMI. Besides, angiographic follow-up is of great clinical importance by giving insight on the treated infarct lesion and to assess the functional angioplasty result. Objective: This randomized controlled, non-inferiority trial is mainly designed to prospectively assess the safety and efficacy of a CE-marked paclitaxel-eluting balloon only strategy vs. third generation DES in the setting of a ST-elevation myocardial infarction (STEMI).