View clinical trials related to Communicable Diseases.
Filter by:Only a fraction of individuals infected with microbes develop clinical disease. This observation raises fundamental questions about the pathogenesis of infectious diseases. There is a complex interaction between environmental (microbial and non-microbial) and human (genetic and non-genetic) factors. This will determine the quality of the immune response against the infectious agent and the clinical manifestation. By definition, individuals who die from an infection have defective immunity to the pathogen in question (immune agent (immune deficiency). The investigation of individual variability in the development of infectious diseases began in the early 20th. The first evidence to support the hypothesis that individual variability variability and immune deficiencies were hereditary came from observations of familial cases or genetic isolates genetic isolates (from a homogeneous population) of rare or common infectious diseases, which in some cases Mendelian heredity hat predisposition to infectious diseases runs in families even more so than diseases associated with less determined environmental factors, such as certain cancers. such as certain cancers. Finally, studies comparing the rate of concordance of infectious diseases between monozygotic and dizygotic twins also implicate genetic factors in disease susceptibility. These observations were validated by the discovery of genetic defects associated with severe infectious diseases, leading to proof of concept. While a number of hereditary immune deficiencies associated with susceptibility to multiple pathogens or microorganisms, a growing number of new and rare new and rare immune deficiencies conferring restricted susceptibility to infections caused by a single caused by a single pathogen family, or even a single pathogen, in otherwise healthy children, have recently been identified (one gene, one pathogen). As a result, a dozen Mendelian clinical syndromes characterized by restricted susceptibility are now known. Over the last 20 years, it has been proven that these "idiopathic" infections were immune deficiencies. The investigators now wish to study new severe infections, including but not limited to viral, fungal and bacterial infections. viral, fungal, bacterial and parasitic infections. This should lead to a better understanding of the pathophysiology of each disease, the development of new therapeutics and better patient care.
Bacterial infections among young infants, including sepsis, meningitis, and pneumonia, continue to cause a substantial number of deaths globally. Zinc supplementation in combination with standard antibiotic therapy may represent a new intervention to reduce mortality and improve treatment outcomes for young infants with clinical severe infection. The Investigators will conduct a randomized, double-blind, placebo-controlled trial of zinc supplementation among young infants 0-59 days with severe clinical infection. The trial will enroll 3,250 Tanzanian infants hospitalized with clinical severe infection as defined by WHO Integrated Management of Childhood Illness (IMCI) guidelines. Enrolled infants will receive standard clinical management including antibiotics and will be randomized to receive either a 14-day course of twice-daily 5 mg elemental zinc (10 mg per day) or a matching placebo regimen.
The neurogenic bladder and bowel are two pathological conditions occurring when damaged innervation results in functional alteration of both the bladder and the bowel with a clinical presentation that can vary from retention to incontinence often associated with an increased risk of infection. Specific microbiological patterns of urinary microbiota are associated with states of well-being of the host and play protective and preventive functions for numerous urological pathologies such as urinary tract infections, urinary incontinence and bladder tumors. What the "healthy" profile of the bladder microbiota is in subjects with neurogenic bladder appears currently poorly reported in literature data. Indeed, in these populations different strains of uropathogenic microorganisms, such as E.Coli, Klebsiella, Pseudomonas and Enterococcus, are dominant compared to healthy subjects where Lactobacillus predominates. The characterization of the gut microbiota in terms of composition can be a key tool for understanding the effects that preventive therapeutic and nutritional approaches or clinical procedures have on it, subsequently offering the possibility of improving and complementing these treatments. Among human microbiota, the vaginal one, the "vaginoma", is among the most studied for its correlation with female health status. The "core" of the vaginal microbiome is Lactobacillus which under physiological conditions is represented in particular by Lactobacillus Crispatus, Lactobacillus Iners, Lactobacillus Jensenii and Lactobacillus Gasseri. Immune cells and related PRRs receptors interact with the microorganisms in the vaginal environment of the vaginal environment are the immune cells and the related PRRs receptors thus the close relationship between microbiome and immunity as well as between vaginoma and genitourinary well-being is now evident. The characterization of the gut, urinary and vaginal microbiota in patients with neurogenic bladder secondary to spina bifida and multiple sclerosis can help identify a "health promoting" profile to personalize and characterize the therapeutic approach.
The increase in the practice of running has encouraged a proliferation of studies evaluating the impact of this sport on health. A number of these studies have looked at the influence of endurance events on the immune system. After prolonged exercise, a systemic inflammatory syndrome sets in, with repercussions for the functioning of the immune system. The number of lymphocytes in the blood is reduced, the function of natural killer (NK) cells is impaired and secretory immunity is impaired. During this period of immunosuppression, often referred to as the 'open window', the host may be more susceptible to micro-organisms that bypass the first line of defence. The invetigators' hypothesis is therefore that ultratrailers are overexposed to the risk of infection due to immunodepression resulting from practising this sport. In order to support this hypothesis, the investigators would like to look at infectious complications in general and ear-nose and throat episodes (rhinitis, pharyngitis, laryngitis, etc.) in particular, which are the most common infections encountered in primary care, along with urinary tract infections.
The purpose of this study is to evaluate the efficacy, safety, pharmacokinetics (PK), neutralizing antibody and antidrug antibody (ADA) response for TNM001 in infants entering their first RSV season.
To evaluate the safety and tolerability of partial HLA-matched VSTs against both CMV and EBV viruses in recipients of allogeneic hematopoietic stem cells with refractory viral infections (CMV and/or EBV). Preliminary evaluation of the efficacy of partial HLA-matched VSTs against both CMV and EBV viruses in recipients of allogeneic hematopoietic stem cells with refractory viral infections (CMV and/or EBV); To monitor the duration and expansion of multi-virus VSTs cells after infusion.
Surgical site infections (SSI) are a frequent complication in abdominal surgery. SSI lead to worse outcomes for the affected patients and significantly higher healthcare costs. Closed incision negative pressure wound therapy (ciNPWT) consists of a non-invasive, vacuum-assisted system that applies negative pressure to closed surgical incisions. It is currently unclear, if ciNPWT reduces SSI in patients undergoing abdominal surgery. This trial will investigate the effect of ciNPWT on SSI in abdominal surgery.
Surgical site infections (SSI) pose a common challenge in the field of surgery. Current evidence and literature do not provide clear consensus whether the use of subcutaneous drainage will help reduce the incidence of SSI in patients who underwent abdominal surgery, especially in wounds that are categorized as contaminated (class 3) or dirty/infected (class 4). The objective of this clinical study is to compare the rate of surgical site infection in contaminated and dirty/infected surgical wounds among patients whose wounds are inserted with subcutaneous drainage and patients who are not inserted with subcutaneous drainage.
The goal of this quasi-experimental multicenter before-after cohort study, phase II study is to evaluate the efficacy of 12-month letermovir prophylaxis in lung transplant recipients (D+/R-) compared to a historical cohort of lung transplant recipients (D+/R-) who received 12 months of valganciclovir prophylaxis to prevent CMV disease."
The human microbiota corresponds to an extremely rich and varied set of microorganisms that colonize our various epitheliums from birth, including the intestine, lungs and skin, where they interact continuously with our immune system. Changes in microbial composition and function, termed dysbiosis, have been linked to alterations in immune responses and to disease development, such as psoriasis. Recent research has shown that the gut microbiota can condition the therapeutic response to checkpoint inhibitors and that fecal microbiota transplant overcomes resistance to these therapy, suggesting a direct role for the microbiota in the ability to shape a therapeutic immune response. Antibiotic exposure during the course of cancer therapy negatively correlates with patients' response to anti-PD-1 treatment response, thus highlighting the link between the enrichment of specific microbial taxa in intestines and the response to immunotherapy. This observation suggests that treatments capable of modulating microbial networks and promoting specific bacterial clades may modulate the host's immune response. Hence, beyond their expected effect in the targeted tissue, part of the therapeutic effect of drugs could rely on this mechanism. In psoriasis patients, observational studies suggest that gut microbiome is altered differently after the use of anti-IL17 or anti-IL23 biologic agents. Main objective: To determine the evolution of microbial composition of fecal samples issued to patients who responded to a biologic agent (IL-17 inhibitors, IL-23 inhibitors) and have stopped their treatment for 2 to 4 weeks before the index date, at baseline and 6 months or clinical relapse after treatment discontinuation Design of the study: Prospective french multicentre observational cohort study Population of study participants: Patients with psoriasis in remission after IL23i or IL17inhibitor treatments and who have stopped their medication for 2 to 4 weeks. Number of participants included: 50 adult patients considered in remission and have stopped for at least 2 weeks and a maximum of 4 weeks, one of the following biologic agent: secukinumab, ixekizumab, brodalumab, bimekizumab, guselkumab, tildrakizumab, or risankizumab