[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"clostridoides-difficile-associated-disease\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:clostridoides-difficile-associated-disease":28},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,2,0,[8,42],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":17,"sex":18,"minAge":19,"maxAge":4,"enrollmentInfo":20,"targetDuration":4,"studyType":23,"phases":24,"briefSummary":26,"conditions":27,"keywords":4,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":30,"lastUpdatePostDateStruct":31,"startDateStruct":34,"completionDateStruct":36,"leadSponsor":38,"locationsCount":41},"100614674","phase-3-a-study-to-learn-about-a-clostridioides-difficile-vaccine-in-people-65-years-of-age-and-older-100614674",false,"NCT07282665","A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older","A PHASE 3, PLACEBO-CONTROLLED, DOUBLE-BLINDED, RANDOMIZED STUDY TO EVALUATE THE EFFICACY, SAFETY, AND TOLERABILITY OF A CLOSTRIDIOIDES DIFFICILE VACCINE IN ADULTS 65 YEARS OF AGE AND OLDER","BEETHOVEN","Who Can Join the Study (Inclusion Criteria):\n\n• People with recent or future planned contact with healthcare systems, recent antibiotic exposure, or a diagnosis of certain chronic medical conditions.\n\nWho Cannot Join the Study (Exclusion Criteria):\n\n* Anyone who has had CDI before.\n* Anyone who has had surgery to remove part of their small or large intestine.\n* Anyone who often has diarrhea (meaning three or more loose stools in a day, more than once a month).\n* Anyone who has already received a vaccine or special antibody treatment for C. difficile.\n* Anyone who has had a serious allergic reaction to a vaccine or to any part of the study vaccines.\n* Anyone who might not respond well to the vaccine because their immune system is weak (either from a disease or from treatment).\n* Anyone with cancer that has spread or another serious health problem.",true,"ALL","65 Years",{"count":21,"type":22},32500,"ESTIMATED","INTERVENTIONAL",[25],"PHASE3","The purpose of the study is to learn about how effective, safe, and tolerable the Clostridioides difficile (C. difficile) vaccine is in decreasing the number of C. difficile infections (pCDI) in adults 65 years of age or older.\n\nThe participants will receive either the C. difficile vaccine or placebo (saline). A placebo does not contain any active ingredients. The vaccines will be given as a shot into the upper arm muscle.\n\nThis study looks at the number of diarrhea (loose stools) events related to a C. difficile infection, so the length of the study can change. If these events happen quickly, the study may finish sooner; if they happen slowly, it could take longer. Sometimes, the study might stop early if the vaccine clearly does not work. Participants will stay in the study until enough events have occurred to answer the main question. On average, each person is expected to take part for up to about three and a half years.\n\nDuring this time, participants will have 3 planned clinic visits and 3 planned phone visits. After these visits, more scheduled clinic visits will happen every year until the end of study.\n\nBesides the scheduled study visits, if at any time during the study a participant has 3 or more loose stools in 24 hours, they will be asked to save the next one (the fourth or later) and contact the study site. The study site will check to see if it could be a C. difficile infection. This check may happen at the clinic or through a phone or video call.",[28],"Clostridoides Difficile Associated Disease","RECRUITING","2026-08-12",{"date":32,"type":33},"2026-08-14","ACTUAL",{"date":35,"type":33},"2025-12-10",{"date":37,"type":22},"2029-06-07",{"name":39,"class":40},"Pfizer","INDUSTRY",183,{"id":43,"slug":44,"hasResults":11,"nctId":45,"briefTitle":46,"officialTitle":47,"acronym":48,"eligibilityCriteria":49,"healthyVolunteers":11,"sex":18,"minAge":50,"maxAge":4,"enrollmentInfo":51,"targetDuration":4,"studyType":23,"phases":53,"briefSummary":55,"conditions":56,"keywords":59,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":67,"lastUpdatePostDateStruct":68,"startDateStruct":70,"completionDateStruct":72,"leadSponsor":74,"locationsCount":77},"100591375","phase-2-secondary-prevention-of-clostridioides-difficile-using-vancomycin-100591375","NCT06979609","Secondary Prevention of Clostridioides Difficile Using Vancomycin","Secondary Prophylaxis of Recurrent Clostridioides Difficile Infections During Systemic Antibiotics With Vancomycin: A Randomized Controlled Trial","SPORES-V","Inclusion Criteria\n\n1. Inpatient or outpatient adults (≥18 years old) treated at the participating institutions.\n2. An episode of CDI within the preceding 120 days, diagnosed by both a positive C. difficile assay (including PCR toxin gene detection, toxin enzyme immunoassay, and\u002For cell cytotoxicity neutralization assay) and the presence of either ≥3 unformed stools in \\\u003C24 hours with a duration \\>24 hours, endoscopic\u002Fhistologic evidence of pseudomembranous colitis, or ileus.\n3. Treatment of the qualifying CDI episode with vancomycin or fidaxomicin for ≥10 days, and achievement of clinical cure (≤3 unformed stool per 24 hours in ≥2 days10).\n4. Receipt of ≤3 days of at least one oral or intravenous systemic antibiotic, for which therapy is planned for at least one additional consecutive day in duration.\n\nClinical Exclusion Criteria\n\n1. ≥72 hours of off-study vancomycin prophylaxis for the current episode of antibiotic re-exposure.\n2. ≤1 day elapsed since discontinuation of CDI treatment\n3. Treatment of the qualifying episode of CDI with metronidazole monotherapy or intravenous immunoglobulins.\n4. Planned treatment with or treatment of the qualifying episode of CDI with fecal microbiota transplantation (FMT), bezlotoxumab, VOWST, REBYOTA, or another microbiome agent.\n5. Inability to take medications orally.\n6. Ileostomy, colostomy, or total colectomy with ileorectal anastomosis.\n7. Severe intolerance or allergy to oral vancomycin.\n8. Lack of achievement of clinical cure during the treatment of the qualifying CDI episode\n9. The qualifying antibiotic is solely for prophylaxis (e.g., once daily trimethoprim sulfamethoxazole) or the patient is anticipated to require systemic antibiotics for \\>4 weeks (e.g., lifelong suppressive therapy or for the treatment of left-sided endocarditis or a deep-seated abscess).\n10. Patients on ongoing systemic antibiotics since the completion of treatment for the qualifying episode of CDI that have not been interrupted by at least one day.\n11. Patients admitted to a palliative care ward or who are anticipated to die within 8 weeks of enrollment from another illness.\n12. The qualifying antibiotic is non-systemic (i.e., topical) or is not considered a significant risk factor for CDI including: single-dose antibiotics, as well as macrolides, nitrofurantoin, intravenous vancomycin, metronidazole, tetracyclines, and oral fosfomycin. If two or more systemic antibiotics are given (i.e., ceftriaxone and azithromycin), as long as at least one of the systemic antibiotics does not meet exclusion criteria, then the patient will still be eligible.\n13. Concomitant receipt of rifaximin (e.g., for hepatic encephalopathy).\n14. Receipt of ≥2 courses of vancomycin prophylaxis since the qualifying episode of CDI or \\\u003C2 weeks since the last course of vancomycin prophylaxis.\n15. Treating team declined participation.\n\nAdministrative Exclusion Criteria\n\n1. Prior enrollment in this trial.\n2. Inability to consent and without a healthcare proxy.\n3. Lack of health insurance.\n4. Anticipated transfer to a site not involved in this trial or to a palliative care ward.\n5. Patient declared anticipated inability to participate in study follow-up or lack of means for contact in the outpatient setting.","18 Years",{"count":52,"type":22},300,[54,25],"PHASE2","Re-exposure to systemic antibiotics (i.e., antibiotics absorbed into the bloodstream) is common after a Clostridioides difficile infection (CDI) and is the strongest risk factor for a recurrent episode. Oral vancomycin to prevent a recurrence during antibiotic re-exposure may reduce this risk but the data supporting this practice are limited. The aim of this trial is:\n\n1\\) Does oral vancomycin prophylaxis prevent CDI recurrences in patients with recent CDI (within 120 days) and who are re-exposed to systemic antibiotics?\n\nThe trial will compare oral vancomycin to placebo.\n\nParticipants will:\n\n* Take the study drug (either vancomycin or placebo) twice daily for the duration of systemic antibiotics plus once daily for 7 days after completion of systemic antibiotics.\n* Attend an in-person or over the phone follow-up at day 56\n* Respond to weekly electronic questionnaires",[57,58,28],"Clostridioides Difficile Infection","Clostridioides Difficile Infection Recurrence",[60,61,62,63,64,65,66],"Clostridioides difficile","Clostridium difficile","Vancomycin","Prophylaxis","C. difficile","Recurrence","CDI","2026-06-19",{"date":69,"type":33},"2026-06-24",{"date":71,"type":33},"2025-11-01",{"date":73,"type":22},"2029-10-01",{"name":75,"class":76},"McGill University Health Centre\u002FResearch Institute of the McGill University Health Centre","OTHER",1]