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.
Malaria is a parasitic disease causing substantial morbidity and mortality globally. Malaria is a potentially severe and fatal disease in non-immune individuals. In areas of intense transmission infections individuals acquired immunity that protect against clinical disease. Nonetheless, immunity is not regarding sterilizing and repeated infections often result in an asymptomatic carriage of malaria parasites. These chronic apparently asymptomatic infections have been associated with anemia, cognitive dysfunction and adverse events during pregnancy. Global migration has increased over the last decade and has resulted in an increasing number of migrants from malaria endemic regions arriving in non-endemic countries. Migrants from malaria endemic countries may carry asymptomatic infections with malaria parasites, as well as other parasitic infections such as strongyloides and schistosomiasis, with a possible negative impact on health in this group. The prevalence of asymptomatic malaria and other parasites is not fully elucidated in migrants from different regions. Moreover, the longevity of asymptomatic carriage of malaria parasites in absence of re-exposure is not known. The aim of this study is to assess the prevalence of malaria parasites and other parasitic infections in migrants in Sweden, both newly arrived and migrants with longer residency, and intend to evaluate the need for screening for various parasitic infections in migrants arriving in Sweden. Moreover, this study will also assess antibody responses to malaria and other parasitic diseases.
Chronic hepatitis B (CHB) infection remains an important public health with more than 240 million people chronically infected despite the existence of an effective vaccine. Cirrhosis and hepatocellular carcinoma (HCC) are major complications of CHB infection and are responsible for more than 600,000 deaths each year. These complications are strongly related to the function of the immune system. Indeed, the persistence of HBV and the progression of liver disease are mainly due to the development of an ineffective immune response to HBV. Therefore, the clinical outcome depends on the complex interaction between HBV replication and adaptive immune responses. The ultimate goal of antiviral treatments is the elimination of HBsAgHBs and the appearance of anti-HBs antibodies without detectable PCR replication. Current treatments are effective at lowering viral DNA levels, but they are not able to permanently eliminate chronic HBV infection, due to the persistence of cDNA in the nucleus of infected hepatocytes. This therapeutic goal is rarely achieved and new therapeutic approaches are needed. In this sense, Immunotherapy represents a very promising new therapeutic approach that could lead to the cure of chronic HBV infection. Indeed, HBV infection is characterized by a progressive depletion of T lymphocytes which results in a progressive loss of function, associated with a sustained positive regulation of inhibitory control molecules. Thus, the objective of this study is to define the immune signature and the main control pathways associated with T-cell depletion in patients chronically infected with HBV, by analyzing immune cells isolated from these patients at phenotypic , transcriptional and functional levels
This is a quality register for the monitoring of clinical assessment and treatment for gambling disorder and gaming disorder in Swedish health care. This register is held by Region Skåne, the health care organization of Skåne in southern Sweden, and administered by Register center South, which is associated with health care services in the southern regions of Sweden (the establishment of quality registers in Swedish health care relies upon a national legislation). Quality registers by themselves do not represent formal research projects. However, future research projects can use quality registers, such as the present one, as a data source for future research projects in case they are approved by an ethics authority. Clinical study variables collected in the register include the following (examples): - gender, age, occupation, living conditions - if applicable, types of gambling associated with the treatment needs - if applicable, type of problematic video gaming - type of referral to the present treatment contact - treatment history in psychiatry, social services, enforcement agency - history of suicidal behavior - alcohol and drugs problems requiring assessment or treatment - violence victimization - type of treatment provided to the patient
Prospective registry study of endoscopic submucosal injection of indocyanine green before laparoscopic radical resection for colorectal cancer
The novel coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) has been discovered recently in December 2019 from wuhan city in China to spread in more than 40 countries allover the world. This disease has gain the attention of all nations after it has been stated as a pandemic by the World Health Organization (WHO) in March 12, 2020. Currently no treatment has been proved to be efficient in the treatment of infected patients by COVID-19. Natural honey has been demonstrated as potent antimicrobial in many research investigations and has been considered a good alternative for antiviral drugs for the treatment of some viral infections. The investigators aim to study the efficacy of natural honey in the treatment of COVID-19 patients in this randomized , multicenter, controlled trial, comparing honey in one arm to standard care in the other arm.
Chronic thromboembolic pulmonary hypertension (CTEPH) is the fourth group of pulmonary hypertension (PH) according to clinical classification. Pulmonary endarterectomy（PEA) is the preferred treatment for patients with CTEPH, however, PEA has its limitations, it only applies to the thrombi in the main, lobar, or segmental pulmonary arteries for patients with CTEPH, and the postoperative residual PH is found to be of high percentage. With the development of interventional techniques, balloon pulmonary angioplasty (BPA) has been used to treat chronic thrombotic pulmonary hypertension (CTEPH) with favorable results and has been identified as an effective and safe treatment for technically inoperable CTEPH. Balloon pulmonary angioplasty (BPA) has been accepted as a therapeutic strategy in accordance with the 2015 ESC/ESR guidelines, especially for patients with technically inoperable, an unfavorable risk-to-benefit ratio of the PEA. This study was a single-center prospective study that collects 3 time points data (before BPA, after final BPA, and follow-up ) to verify long-term safety and efficacy of BPA, as well as comparing the efficacy with targeted medical therapy, evaluating the complications of BPA, the survival of patients, and the postoperative quality of life.
The aim of the study is to 1. To determine whether treatment with Erythropoiesis-stimulating agents (in the form of Aranesp®) affects platelet function, and how. 2. To determine whether salicylate treatment changes the effect of EPO (erythropoietin) on platelet function.
The aim of this study was to investigate any change in tooth color resulting from dehydration resulted from rubber dam application and the time required for any change to return to baseline and to investigate the nature of change and areas of the teeth most affected.
Mortality of COVID-19 pneumonia with acute respiratory distress syndrome (ARDS) is extremely high in preliminary reports amounting to 50-60%. Duration of mechanical ventilation in these patients appears to exceed standard duration of mechanical ventilation in non-COVID-19 ARDS patients, suggesting that COVID-19 patients may be particularly at risk for ventilator-induced lung injury. Treatment of COVID-19 ARDS patients is to date mainly supportive with protective mechanical ventilation (ventilation with low tidal volume (VT) i.e. 6 ml/kg of predicted body weight (PBW) and plateau pressure control below 30 cm H2O). Mechanical ventilation with VT reduction below 6 ml/kg PBW in ARDS may reduce alveolar strain, driving pressure and hence ventilator-induced lung injury. Investigators recently performed a multicenter pilot study on 34 moderately severe to severe ARDS patients. This study demonstrated that ultraprotective ventilation with ultra-low VT (≤4.2 ml/kg PBW) without extracorporeal circulation may be applied in approximately 2/3 of the patients, with a 4 cmH2O median reduction in driving pressure, at the price of transient episodes of severe acidosis in approximately 1/3 of the patients. Investigators hypothesized that ultraprotective ventilation without extracorporeal circulation may reduce the mortality at day-90 and increase the number of days free from mechanical ventilation (VFD) at day-60, as compared to protective ventilation.
COVID-19 ( known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)) has a highly polymorphic clinical presentation, ranging from pauci-symptomatic infection to severe, potentially complicated forms with acute respiratory distress syndrome or multisystemic organs failure. The picture may be initially severe, or it may progress in two stages, with worsening 7 to 10 days after the first symptoms with an overall case-fatality rate of 3 to 4%. Its management is essentially symptomatic, as no antiviral treatment has so far demonstrated a clinical benefit in this condition. In such a context, healthcare professionals assigned to COVID units will be faced with a heavy workload and emotional burden that could lead to psychological suffering or even burnout and its consequences. We would therefore like to describe, using validated tools, the emotional evolution of the care workers at the Limoges University Hospital and the Esquirol University Hospital faced with this new pandemic infection. An initial and end-of-study evaluation of the caregivers will be carried out concerning their anxiety and depressive state, their personal capacity for resilience and their degree of empathy