View clinical trials related to Clostridium Infections.
Filter by:Clostridioides difficile (formerly Clostridium) is a bacterium found in the form of spores (resistance form) in the environment to which patients may be exposed. This bacterium used to belong to the Clostridium genus, but analysis of its 16S ribosomal RNA in 2016 led to its being distinguished from it. Once the spore has been ingested, it can germinate in vegetative form (the active form of the bacterium), taking on the appearance of a Gram-positive bacillus that will colonize the digestive microbiota. This preliminary stage of digestive colonization by the bacteria is facilitated by certain factors, notably nasogastric probing, antacids, etc. Antibiotics, for their part, disrupt the bacteria of the digestive microbiota (dysbiosis), thus facilitating the implantation of C. difficile. Certain strains (known as toxigenic) will produce the main virulence factors: toxins A (TcdA) and B (TcdB) ± a third toxin (binary toxin or CDT), and thus cause the main clinical signs of digestive infection, particularly in patients with risk factors for C. difficile infection (progressive cancer, immunodepression, etc.). Clostridioides difficile infection (CDI) is characterized by variable clinical presentations, ranging from simple watery diarrhea without colitis, which often resolves spontaneously, to severe forms with complications such as pseudomembranous colitis, intestinal perforation or septic shock, which have a very poor prognosis. Management of this type of CDI relies mainly on the oral administration of anti-clostridium difficile antibiotics such as fidaxomicin (FDX) or vancomycin (VAN) for 10 days, as recommended by the European ESCMID, British and American IDSA guidelines. Oral metronidazole is recommended only in the absence of availability of the first two molecules (community use). Despite this treatment, one of the main characteristics of CDI is a high recurrence rate, which can reach 25% of cases. With FDX, recurrence rates appear to be lower, especially as its administration regimen is optimized. Nevertheless, its high cost is a barrier to its wider use. In view of the high cost to the community of treating recurrences, and the reduced quality of life of patients suffering from these recurrences, which are sometimes multiple and highly incapacitating, reducing the occurrence of recurrences is a major challenge. A better understanding of the factors leading to recurrence is therefore a prerequisite for optimizing CDI prevention and treatment strategies. The study of colonic mucosal immunity (aimed at quantifying IgA in stools) could also contribute to a better understanding of patient progress. All these issues surrounding CDI and its management justify the setting up of a prospective cohort for the longitudinal follow-up of infected patients, enabling us to study the digestive clearance of the bacteria according to various factors, notably the digestive microbiota and the mucosal immune response.
Colorectal cancer in periooperative period patients (n=60) will be enrolled to this study. Participants will be divided into 4 groups as follows: - group 1 (n=15) will receive 2 capsules (per day) of L. plantarum 299v L. plantarum 299v (Sanprobi IBS®) for 4 weeks - group 2 (n=15) will receive L. plantarum 299v (2 capsules per day) and inulin (4 g) for 4 weeks - group 3 (n=15) will receive placebo (2 capsules per day) and inulin (4 g) for 4 weeks - group 4 (n=15) will receive placebo (2 capsules per day) for 4 weeks
This is a randomized, placebo-controlled, dose-ranging study to assess the safety and efficacy of xylitol as an oral therapeutic for decolonization of C. difficile in IBD patients. A total of 99 patients who meet eligibility criteria will be randomized 1:1:1 to one of two xylitol doses or placebo arm. All arms will receive an identical capsule dosing for four weeks. Microbiome assessment and C. difficile testing will be performed at baseline, week 4, 8, 26, and 52.
This is a prospective observational cohort study designed to collect data on patients who received REBYOTA™ for the prevention of rCDI in the routine care setting. As all data collected for this study are observational, the decision to prescribe REBYOTA™ is at the treating physician's discretion and independent from the decision to enroll the patient in the study. Data will be collected from patients' medical records after obtaining informed consent. Data about clinical history, CDI events (primary and recurrent: severity, treatment), CDI-related symptoms, treatments, medical procedures, Adverse Events(AEs), and healthcare resource utilization (i.e., hospitalizations and re-admissions) will be collected through 6 months of follow-up from the date of REBYOTA™ administration.
This trial will be initiated to explore whether RBX2660 (REBYOTA®) could be suitable for administration by the practice of colonoscopy. More specifically, the purpose of this trial is to explore the safety and clinical effectiveness of RBX2660 when delivered by colonoscopy to adults with rCDI. The experience of physicians will be documented through a physician-experience questionnaire to explore the usability of RBX2660 in clinical practice for colonoscopic administration. Furthermore, to explore the patient-experience of RBX2660 treatment, each trial participant will be offered to undergo a structured interview.
Recurrent Clostridioides difficle infection (rCDI) is a very significant problem in its own right and current fecal microbiota transplant (FMT) -based therapeutics will benefit from their optimization for this indication. It is likely that appropriate nutritional support coupled with microbiota-based drugs will yield superior clinical outcomes. However, both diet and gut microbiome are very complex. This project, which is based on a wealth of FMT experience, both clinical and investigational, over the past decade along with the novel techniques developed to identify dietary patterns and food groups that explain the most variation in gut microbiome, offers an ideal platform for performing systematic research in nutritional support that promotes gut microbiota health. The purpose is to Generate preliminary data with regards to tolerability of the Microbiota enhancing and nourishing diet (MEND) and its effects on the fecal microbiota in rCDI patients following FMT with the goal of developing larger clinical trials aimed to optimize post-FMT dietary management.
Clostridioides difficile infection (CDI) is the most common cause of nosocomial diarrhea, and the most common health care-associated infectious disease in the United States, accounting for 15% of overall infections, nearly 30.000 deaths per year an estimated economic expense of $5 billion/year. In the last decade, most of the burden related to CDI depends on recurrence CDI (rCDI) (3). rCDI is known to extend the hospitalization length, and to be associated with increased morbidity and mortality rates. Furthermore, rCDI is often, more than primary infection, associated with life-threatening complications, including pseudomembranous colitis, toxic megacolon, shock, perforation, bloodstream infection (BSI), sepsis, caused by intestinal bacteria or fungi with a mortality rate nearly 50%, and death. Fecal microbiota transplantation (FMT), defined as the infusion of feces from healthy donors to recipient with disorders associated to dysbiosis, is known to be a highly effective treatment option against CDI. FMT is also more effective than standard treatment with vancomycin and it is recommended by International Guidelines for treating multiple recurrence of CDI. Despite the increasing body of evidence about the clinical efficacy of FMT for the treatment of rCDI, mechanisms for this clinical efficacy are also unknown. Metagenomics analysis is known as a good option to examine gut microbiota and to estimate microbial diversity. The aim of this study is to evaluate changes in microbial composition in rCDI patients after FMT, using metagenomics analysis.
The goal of this research is to compare alterations of gut microbiota and fecal metabolomics alterations between inflammatory bowel disease patients infected with or without Clostridioides difficile. The main questions it aim to answer are: which bacterial genus or fecal metabolites can discriminate IBD patients infected or more likely to be infected with Clostridioides difficile and their role in the pathogenesis of Clostridioides difficile. type of study: observational study participant population/health conditions 1. population diagnosed with Ulcerative colitis or Crohn's disease 2. Having diarrhea Participants will be included in this research. If there is a comparison group: Researchers will compare healthy people without IBD or any diarrhea to see if disease or diarrhea would affect the gut microbiota and metabolites.
The goal of this clinical trial is to test whether lyophilized fecal microbime transfer - a dried extract of bacteria from the stool of healthy donors - is better than antibiotic therapy only for treating primary clostridioides difficile infection (CDI) in adult participants. The main question it aims to answer is whether lyophilized fecal microbiome transfer lowers the number of episodes of CDI compared to antibiotic therapy. Participants will be assigned to one of two groups: - In the intervention group participants will be given vancomycin by mouth for five days followed by 5 days of capsules of lyophilized fecal microbiome to swallow, up until day 10. - In the control group participants will be given vancomycin by mouth for ten days. - All participants will be asked to arrive for two follow-up visits and to fill out questionnaires. In addition, all participants will be asked to give stool samples before antibiotic therapy and on the two follow-up visits. Researchers will compare the intervention group and the control group to see if there is a difference in symptoms degree after ten days and in recurrence of the infection after two months. They will also compare side effects, the total use of antibiotics and the change in the composition of bacteria in the stool, namely the presence of bacteria that are resistant to many drugs.
Fecal microbiota transplantation (FMT) achieves the purpose of treating intestinal and extra-intestinal diseases by transplanting the functional microbes in the feces of healthy people into the patient's intestine through the upper or lower alimentary tract routes to rebuild the patient's intestinal microbiota. Recently, FMT has been widely used in the treatment of various gastrointestinal diseases, including but not limit in CDI. In this study, we focused on the demonstration of FMT action mechanism in CDI treatment.