Active clinical trials for "Fever"

To evaluate the immune status of yellow fever in adults with a history of two or more doses of vaccine, having received the second dose for at least 1 year, compared to re-vaccinated individuals (second dose) after 30 days.

Febrile neutropenia (FN) is a clinically important adverse effect of myelosuppressive chemotherapy. If patients present with FN, attention is focussed on well-recognized sites of origin of infection: the airways, urinary tracts, and skin. However, infections can be only documented clinically in about two-third of febrile episodes, whereas a causative microbial pathogen cannot be identified in the majority (>70%) of cases. Pre-treatment oral evaluation aimed to identify and eliminate oral/dental foci is only routinely used in patients at high risk for oral complications (i.e. head and neck cancer patients and stem cell transplantation recipients). However, any patient treated with myelosuppressive chemotherapy, be it for cure or palliation, is at risk of developing infection in and/or originating from the oral cavity. Nevertheless, in these patients dental screening is somewhat randomly employed at the oncologist's discretion. More insight into the pre-treatment oral condition and its potential role in FN is mandatory, particularly considering the growing numbers of older patients retaining their natural dentition and the increase of dental diseases and cancer incidence with age. In addition, oral diseases may aggravate chemotherapy-induced oral mucositis (OM). OM is associated with an inflammatory response, which together with ulcerations providing a portal of entry for bacteria, can result in FN and systemic inflammatory syndrome (SIRS) and/or sepsis. Evidence suggests that microorganisms are involved in the pathobiology of OM, but no longitudinal studies using open-end sequencing are available. Furthermore, comparing bacteria identified in blood cultures in febrile patients with those of the oral cavity will expand the knowledge on the role of the oral cavity as a potential source of bacteremia. The investigators expect that the results will provide a scientific base for subsequent intervention studies on the efficacy of dental screening and elimination of foci, and other interventions aimed at modifying the oral environment before and during chemotherapy.

This is a multi-center case-control study that aims to define the association between the exposure to an arbovirus infection and the development of a neurological syndrome in patients from Colombia. The study makes part of the Neurovirus Emerging in the Americas Study (NEAS) that is a collaborative effort that looks to combine the efforts of researchers, healthcare providers and patients in Colombia to establish a comprehensive registry of the clinical, radiological and laboratory profile of patients with new onset of neurological diseases associated mosquito-borne viruses, known as arboviruses.

A randomized clinical trial comparing fractional dose Yellow Fever vaccination to the full dose among children aged 9-23 months in Uganda. Children will have immune response assessed at baseline, 4 weeks, and 12 months after vaccination. Enrolled participants will be randomized to one of three arms: A. One-fifth fractional dose (0.1 ml) administered subcutaneously B. One-half fractional dose (0.25 ml) administered subcutaneously C. Full dose (0.5 ml) administered subcutaneously

Arenaviruses are included in the World Health Organisation R&D Blueprint list of high priority pathogens, since this virus group includes several epidemic-prone highly pathogenic viruses for which there are inadequate diagnostic, therapeutic, and preventative interventions. Junin, Machupo, Guanarito, Sabia, Lujo, and Lassa virus can all cause a viral haemorrhagic fever with high case fatality in hospitalised cases. Lassa fever is the most common severe arenavirus disease and is endemic across many low and middle income countries in West Africa, with an estimated 37.7 million people in 14 countries living in areas at risk of Lassa virus. Despite the discovery of Lassa virus in 1972 and an estimated 300,000 cases and 5000-10,000 deaths annually, there remain gaps in our understanding of the natural history of disease and in the availability of evidence based interventions. The protocol has two components. Sites may implement one or both components. Cardiovascular function in Lassa fever: Lassa fever in humans is often described in the literature as being characterized by vascular leak and shock in the terminal phase, this being the main pathway to death. Whilst animal data supports this, there are very limited data in humans. One of the main aims of this study therefore is to characterize cardiovascular function in patients with Lassa fever, with the ultimate goal of informing future trials of supportive or therapeutic strategies to improve vascular leak. Ribavirin pharmacokinetics and pharmacodynamics: The recommended treatment for Lassa is ribavirin, but its efficacy has not been established in randomized controlled trials and its mechanism of action is not fully understood. There are very limited PK data on ribavirin in patients with Lassa fever and the optimal dose of ribavirin for an RCT has not been established. Furthermore, there are various hypothesized mechanisms of action of ribavirin, none of which have been investigated in humans with Lassa fever. Therefore, further aims of this study are to characterize the PK of ribavirin and ribavirin metabolites (RMP, RDP, RTP) in Lassa fever patients and to identify potential mechanisms of action ribavirin in Lassa fever. Understanding Ribavirin's mechanism of action in Lassa fever is important for the optimal design of a future RCT.

To study the efficacy and safety of single dose clonazepam compared with intermittent oral diazepam for prevention of recurrent febrile seizures in children who had three or more febrile seizures.

Febrile seizure (FS) is a common neurological condition in children, affecting 2 - 14% of children. FS is defined as seizures occurring in a child aged from six months to five years that is accompanied by a fever (≥38°C) without central nervous system infection. FS is classified into simple febrile seizure (SFS) and complex febrile seizure (CFS). SFS accounts for 70-75% of FS cases and is characterized by being generalized, duration of less than 15 minutes, occurs once in 24 hours, and no previous neurologic problems. We aim to investigate serum levels of adipocytokines, specifically leptin, adiponectin, and IL-6, in children with FS.

In the past 70 years antibiotics have served as the first line of defense against infectious diseases. However, antibiotics are only effective against bacterial infections and are not the solution for infections caused by viruses such as common colds or flu. Despite their contribution to healthcare, antibiotics are currently recognized as the most misused drugs in the world with global overuse estimated at 40%-70%, mostly due to the ineffectiveness of current diagnostic solutions to distinguish between bacterial and viral infections. Antibiotics misuse often causes preventable adverse events that impact patient care and lead to the emergence of antibiotic-resistant bacteria, one of the major threats to global health today. To address these challenges, MeMed has been developing the ImmunoDx™, a novel technology that relies on the best available detection system for differentiating between viruses and bacteria - the body's own immune system. The ImmunoDx™ technology employs a simple blood test that provides the physician, within two-hours, the information he needs to decide whether to treat the patient with antibiotics or not. This technology has been tested on over 1000 patients of different ages and diseases and was found to be highly accurate and safe. The current study is a non-interventional study and the participants do not receive any investigational drug nor any experimental examination or procedure. Therefore, the collected data in this study will not affect the diagnosis, prognosis, or treatment of the participants. Participation includes the collection of a teaspoon of blood and collection of a specimen using a nasal swab. These procedures are common in the clinical practice and are widely performed and possess no significant risk. By participating in the study, the subjects impact the development of the ImmunoDx™ technology, which is expected to enable a future faster and more accurate diagnosis of infectious diseases as well as more appropriate prescription of antibiotics. This will open the way to improve treatment decisions in millions of patients around the world.

This trial studies how fatigue and symptom burden in low-risk cancer patients undergoing treatment for febrile neutropenia. Cancer and numerous cancer treatments are associated with various symptoms including anemia, fever, and neutropenia, which may also be associated with fatigue. Treating low-risk cancer patients for febrile neutropenia may reduce levels of fatigue.

Q fever in the Netherlands is becoming more common. A Q fever infection is a serious threat to certain risk groups,including pregnant women. Pregnant women are more often than the general population asymptomatic. Studies from France show that an infection with Coxiella burnetii may cause obstetric complications including spontaneous abortion, intrauterine fetal death, intrauterine growth retardation and oligohydramnios. The aim of this study is to assess the effectiveness and cost effectiveness of a multidisciplinary screening program, whereby pregnant women in first line healthcare in high-risk areas for Q fever are screened with a single blood sample during pregnancy. If found positive for Q fever, advise for antibiotic treatment will follow as part of regular healthcare. Treatment is therefore not part of the study protocol. The results of this study will give more insights in the risks of asymptomatic Q fever in pregnancy and the benefits and harms of a screening strategy during pregnancy. This study will be used to give an evidence based advice to the Dutch minister of health on screening for Q fever in pregnancy.