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.
RATIONALE: Learning about the effect of metformin hydrochloride in breast density of women with early-stage breast cancer may help plan treatment. PURPOSE: This trial studies changes in breast density in patients with early-stage breast cancer treated with metformin hydrochloride or placebo on CAN-NCIC-MA.32.
Heroin addiction has emerged as a serious problem with tremendous impacts on the addicts and the society. Since the introduction of opioids substitutive treatment in 2006, more than 30,000 heroin addicts had received treatment, and nearly 12,000 continued on treatment currently. However, an unknown proportion of patients hidden in community remained un-treatment. To motivate the community heroin addicts is thus a challenging task. It is suggested that decision making deficit is core feature which determine outcomes and treatment motivations in patients with addiction disorders. Recently, the state-of-the-art development of epigenetics uncover that environmental modification, via altering level of DNA methylation and gene expression will influence on neurocognitive functioning. Via respondent-driven sampling, this study aims to recruit a representative sample targeting at the hard-to-reach community heroin addicts. The goal of this study is to identify the clinical feature as well as decision making-related neurocognitive deficit in these patients. Moreover, the investigators will explore the interplay of clinical features, DNA methylation and gene expressions on opioids receptor genes. The findings will help to clarify the clinical characteristics of community heroin addicts, to uncover the links between DNA methylation and clinical features of heroin addiction and to develop modifiable treatment targets in the future.
The aim of this study was to quantify the Intraocular Pressure (IOP) changes in patients undergoing laparoscopic hysterectomy at different time points and body positions throughout the procedure, and to explore the influence of perioperative fluid management on the fluctuations of IOP during perioperative period.
Acute respiratory distress syndrome (acute respiratory distress syndrome, ARDS) fatality rate can be as high as 20% -41%, once progress is severe of ARDS, mortality rose to 90%, the main cause of death was refractory hypoxemia. Mechanical ventilation as the main measure to improve hypoxemia cannot correct all hypoxemia and relating complications of mechanical ventilation, mechanical ventilation in the treatment of severe ARDS has gradually been challenged. Extracorporeal membrane oxygenation（ECMO) technology matures, so that clinicians have more choices in the face of hypoxemia, and with the deepening understanding of ECMO, ECMO may become severe ARDS first-line treatment. Currently, ECMO therapy has been recognized by the majority of medical workers. Therefore, we assume that accurately grasping the ECMO indications and standardizing the implementation of treatment can significantly improve the prognosis, shorter hospital stays, lower hospitalization costs.
Wide Pulse Pressure is frequently present in the normal, full-term neonatal population. This study will evaluate the frequency and persistence of wide pulse pressure in the neonatal population. Using a prospective study design in the Regular newborn and Observation nurseries of SIUH, North site. Healthy newborns that are between 0-72 hrs of age will have their blood pressures measured using the oscillometric method. This data will offer insight into whether the presence of wide pulse pressure in otherwise healthy newborn infants warrants further cardiovascular evaluation
Cardiac surgery patients have a high risk to suffer from postoperative infections. Some studies have shown, that humoral and cellular factors are associated with perioperative immunodysfunction and can increase the risk of postoperative infections. Monocytes in the blood and, especially alveolar macrophages are important for an adequate host defence. In studies the investigators have shown that hemodynamic parameters have a significant influence on the probability to develop postoperative infections. The aim of the study is to investigate, whether cardiac surgery patients have an altered immune function after surgery that is predictive for the latter development of subsequent infections and whether they benefit from a goal-directed volume and hemodynamic therapy.
People with diabetes are at an increased risk of heart attacks and heart failure, and it is important to be able to treat people with diabetes who are at risk for heart disease to prevent these outcomes. This study is looking at the importance of "diffuse scar tissue" that is found in the heart of diabetic people. We have discovered a way to detect diffuse scar tissue by cardiac MRI, a non-invasive test. In this study, we do cardiac MRI on diabetics with low risk stress test results and follow them for 5 years to see if the measure of scar tissue in the heart by MRI is related to events. If this study is positive, we will be able to use cardiac MRI scar tissue measurements to target those patients with diabetes who are at highest risk.
The application of in-vitro fertilization (IVF) has provided remarkable opportunities for infertile couple to conceive in the last four decades. Historically IVF was performed for patients with bilateral tubal obstruction, but its use is presently widespread. Although the efficacy of assisted reproductive technology continues to improve, endometrial implantation remains the limiting step towards a successful pregnancy. Reduced endometrial receptivity and embryonic defects are the probable primary causes of implantation failure during IVF(1). Patients with repeated implantation failure despite transferring good-quality embryos continue to be a major dilemma for clinicians and are a topic of great research interest. Barash et al. unintentionally discovered and initially reported that an endometrial biopsy prior to IVF in women who have had one or more implantation failures was associated with an increased clinical pregnancy (66.7% vs 30.3%, p<0.01) and live birth rates 48.9% vs 22.5%, p=0.02) compared to a control group(2). The mechanism by which a local endometrial injury (LEI) may increase the pregnancy rate is still not fully clear. Possible etiologies include its role in promoting a beneficial local inflammatory response, inducing endometrial decidualization, or improving endometrial maturation synchrony (3-6). Following Barash et al's publication, several randomized controlled studies confirmed their findings (7-11). However, there has been extensive heterogeneity among studies, including the number of biopsies, how the biopsy is performed and the selected patient population. On the other hand all the studies have in common that the endometrial biopsy was performed prior to the start of the IVF cycle. The optimal timing of an endometrial biopsy with respect to an IVF cycle is unknown. There is reason to suspect that an endometrial biopsy during the follicular phase of an IVF stimulation cycle may improve pregnancy outcomes, although this has not been directly examined. We therefore propose a randomized controlled study to evaluate the impact of an endometrial biopsy on the implantation and pregnancy rate in both the luteal phase prior to the IVF cycle as well as the follicular phase of the concurrent IVF cycles.
800,000 people in the United Kingdom (UK)have dementia, of which 250,000 are living in care homes. These individuals have complex mental health problems, disabilities and social needs, which if unmet will continue to adversely affect each individual, as well as the main goal of enabling people to "live well with dementia", as presented in the National Dementia Strategy (NDS) (Department of Health, 2009). This optimized intervention WHELD is based on a factorial study and qualitative evaluation designed to facilitate the design of this current study and will combine this with the most effective elements of existing approaches to develop a comprehensive but practical intervention to improve quality of life in persons with dementia living in care homes. The intervention will combine training on person centred care, promoting person centred activities and interactions and provide care home staff and general practitioners with updated knowledge regarding the optimal use of psychotropic medications for persons with dementia in care homes. The overarching goal of this trial is to determine whether this optimised WHELD intervention is more effective in improving the quality of life and mental health, than the usual care provided people with dementia living in nursing homes. The cost effectiveness of the intervention will be assessed as well, with the aim to provide a cost effective, simple and practical intervention, improving quality of life and mental health of people with dementia in care homes; which can be rolled out nationally to all UK care homes as an National Health Service (NHS) intervention. The trial will be a randomised controlled 2-arm cluster single blind trial that will take place for 9 months across 80 care homes in UK.
Background: Anatomical (traditional) stereotactic body radio therapy(SBRT) treatment planning assumes homogenous distribution of function in the normal liver tissue. In functional treatment planning, additional information on distribution of the function derived from functional imaging of normal tissue is taken into account. by functional treatment planning it becomes possible to prioritize and spare the best functioning part of an organ. Aim: To test whether functional treatment planning based on 18-FDGal PET/CT may spare the best functioning liver tissue. Endpoints: Reduction in hepatic systemic clearance (K) in the dynamic 18-FDGal PET/CT scan one month after SBRT compared to the baseline status in sub-volumes recieving 15 Gy or higher. Secondly, the investigators will evaluate the toxicity to SBRT by a toxicity scoring system that includes biochemical measures as well as symptomatic scores.