View clinical trials related to Clostridium Difficile.
Filter by:The goal of this observational study is to investigate how bacterial populations from the intestine and mouth of patients change during the hospitalization period and evaluate if some populations of specific bacteria increase or decrease the risk of acquiring an infection or becoming colonized by pathogenic bacteria. Participants will have the following samples collected during enrollment: stool samples (maximum 2x/week), blood draws (1x/week), oral swab (1x/week).
Clostridioides difficile infection (CDI) is the most frequent cause of infectious diarrhea in hospitalized patients and is responsible for 20-30 % of antibiotic-associated diarrhea cases. Inflammatory bowel diseases (IBD) are associated with an higher prevalence, recurrence and severity of CDI. The prevalence of recurrent CDI in patients with IBD is 2.5 to 8 times higher than in the general population, with a cumulative lifetime risk of 10 %. The higher risk to the development of CDI in patient with IBD is directly related to the microbiome alterations that are associated with this chronic disoder. Moreover, the use of antibiotics to cure CDI further worsens the gut microbiota, triggering potentially a self-maintaining cycle and predisposes such patients to a higher risk of recurrence. In these patients, CD superinfection is associated, with an increased rate of hospitalization, length of stay, the need to modify the treatment to the underlying disease, the increase rate of colectomy, there higher mortality rate, with a net increase of health costs. Nowadays, as emerged by several studies FMT has been established as a valid treatment option against recurrent CDI (rCDI), and it is recommended by international guidelines. Unfortunately, most FMT studies for rCDI have excluded patients with IBD. Recent evidence suggests that FMT is effective in patients with ulcerative colitis (UC) and concomitant rCDI, both in the treatment of the infection and in the improve of disease activity. To date, most studies evaluated the efficacy of single infusion of FMT in these patients. Preliminary data from our group suggest that a sequential approach (i.e., repeated fecal infusions) may increase the efficacy of FMT in this population. Indeed, in 18 patients with IBD, single infusion fecal resulted in eradication of rCDI in 60% of cases, whereas this outcome was achieved in 89% of cases using a sequential approach. Similar data have been demonstrated in a retrospective study by Fischer and colleagues. However, more studies are advocated to confirm these results. Therefore, our study aim to compare the efficacy of single FMT vs. sequential in the eradication of rCDI in patients with UC.
Antimicrobial therapy can lead to disruption of the gut microbiome and infection with Clostridioides difficile, a disease associated with high morbidity and mortality, particularly among the elderly. Drawing on observations that pet ownership and close contact with pets are protective against colonization with C. difficile and recurrence of C. difficile infection, the proposed study will test the hypothesis that microbiota that provide colonization resistance against C. difficile are shared between patients and their pets and that pet contact can mitigate antimicrobial-associated gut dysbiosis and the risk of C. difficile infection. This study will further define epidemiologic and pathophysiologic characteristics of C. difficile infection and gut microbiome dysbiosis that could enhance therapeutic options for these conditions, potentially through non-invasive interventions involving animal contact.
Hospital-based Animal-Assisted visitation programs are important complementary therapies, but concerns with infection control may challenge the sustainability of these programs. Pilot data suggest that a low-cost chlorhexidine-based intervention targeted to the dogs involved in the visitation programs holds high potential to prevent pathogen transmission during sessions. In this study, the following aims will be tested: 1) To identify program-related risk factors for acquisition of hospital-associated pathogens by pediatric patients during animal-assisted intervention (AAI) sessions during an initial run-in phase of no intervention; 2) To determine the effect of chlorhexidine (CHX)-based interventions on acquisition of hospital-associated pathogens and microbial communities by patients during AAI sessions via a multicenter randomized controlled trial; and 3) To determine whether the specific benefits achieved by the visitation program, i.e. reduction in blood pressure, heart rate and self-reported pain and anxiety, are impacted by the interventions.
This study seeks to correlate microbiome sequencing data with information provided by patients and their medical records.
The objective of this study to evaluate the seroprevalence of anti-bodies against C. difficile toxins A and B and the asymptomatic carriage of C. difficile in IBD patients according to the need and type of immunosuppressive therapy. The ultimate goal is to identify, among IBD patients, those with the highest risk of CDI.
This study is an observational study to collect stool samples from patients with Clostridium difficile infection (CDI) to investigate the virulence mechanisms of C. difficile ribotypes in Hong Kong, mainly ribotype 002. No intervention is involved.
The digestive microbiota graft is performed in three clinical circumstances: Clostridium difficile colitis is responsible for numerous deaths each year showing a severe prognosis. In 2013, fecal microbiote (or digestive microbiota) transplantation showed its superiority compared to the reference treatment in recurrences of C. difficile colitis. Our team has demonstrated the value of early grafting in C. difficile-associated colitis associated with ribotype 027. This strain is associated with severe cases and high mortality. In view of the major benefit observed in these particular clinical situations, investigators have implemented since 2013 in C. difficile O27 colitis and then in 2014 in severe C. difficile colitis and since May 2016 for all patients. More than 100 transplants were performed in the department dividing the risk of mortality by 5. The investigators also demonstrated the value of early fecal grafting in severe colitis irrespective of the ribotype involved. In addition, The investigators want to evaluate our protocol of fecal microbiote transplant from the first episode of C. difficile colitis in the "Unit of contagion at IHU". 2- Antibiotic-resistant bacteria In the case of digestive colonization with emergent multi-resistant bacteria, the fecal transplant has proved its effectiveness.. 3- Chronic diarrhea without etiologies Finally, and after the other etiologies have been eliminated, the fecal graft may be used in this indication. The purpose of this study is to study the characteristics of patients who have undergone treatment by grafting of digestive microbiota according to a protocol standardized either by nasogastric tube or by freeze-dried digestive microbiota capsules in 3 indications: clostridium difficile Diarrhea, multidrug resistance bacteria and chronic unexplained diarrhea without altering patient management elsewhere. 200 patients (adults) hospitalized for an episode of C. difficile colitis, multidrug resistant bacteria or chronic diarrhea without etiologies will be recruited during a period of 3 Years. After treatment by grafting of digestive microbiota, and after signed consent, data were collected during their hospitalization and followed up at one month, 3 months, 6 month and 2 years. Data were analysed in order to determine the characteristics of patients benefiting from a digestive microbiota transplant according to a standardized protocol.
The protocol aims to address the basic mechanisms of Clostridium difficile pathogenesis by identifying how a Th 17 response impacts severity of C. difficile infection and how Type II immunity protects the gut from Clostridium difficile toxin-induced damage. This could lead to new and effective approaches to the treatment or prevention of Clostridium difficile colitis that act downstream of fecal microbiota transplants (FMT) or next generation probiotics. Successful fecal microbial transplantation will restore protective immunity to recurrent C.difficile infection.
The purpose of the study is to investigate if treatment with fecal microbiota transplantation or rectal bacteriotherapy is superior to standard vancomycin in patients with recurrent Clostridium Difficile infections.