View clinical trials related to Diarrhea.
Filter by:Acute respiratory infection and acute diarrhea are among the most prevalent diseases of childhood increase the burden of morbidity and mortality in children under 5 years. Among the possible strategies for its prevention is important to count on good nutritional status for use in developing a good immune response to infections. Zinc deficiency has been shown to favor the development of infections and has been considered a real public health problem. Within the zinc compounds used are zinc amino acid chelate and zinc sulphate, the first that has shown evidence of being better absorbed and tolerated. We propose a study showing the effectiveness of zinc amino acid chelate and zinc sulphate in the prevention of acute diarrheal disease and acute respiratory infection.
This study will use longitudinal data collection to quantify the impact of a school-based water, sanitation and hygiene (WASH) program in Mali, West Africa, on pupil absenteeism, diarrheal illness, and respiratory illness. Data will be collected from 100 intervention and 100 control schools across 4 regions in Mali. At each school research staff will randomly select 60 pupils in grades 3-6 (typically ages 7-14). Research staff will ask school directors to provide written consent for pupil participation in place of parents, a procedure that has been approved by the Malian Ministry of Education. Research staff will approach selected pupils at school to request informed oral assent for participation. The informed assent process and data collection will be conducted by local trained enumerators in the child's preferred language of French or Bambara. Oral rather than written assent was chosen due to varied literacy capabilities and to limit paperwork that identifies participants. Data collection will take place at each school once every six to eight weeks during the duration of two school years. Research staff will conduct observations of school facilities, observations of handwashing behavior of children upon leaving latrines, and an interview with the school director about WASH conditions and school enrollment information. None of these school activities collect personal data or identifiers. Data collection with pupils will be done with the same pupils every 6-8 weeks and entails a 5-minute interview asking about recent absence and symptoms of diarrhea and respiratory illness. All data collection will occur at the school, will be conducted by trained local enumerators, and will be stored on password-protected mobile data collection devices. Data will be uploaded to a password-protected server and will not contain personal identifying information. Enumerators will maintain a separate form that links pupil IDs with names, which will be kept confidential. There are no direct benefits other than contribution to general knowledge that will inform future school WASH projects. There are no risks to participation other than a small amount of class time missed by pupils, and great efforts will be made to minimize time outside of class.
Probiotics are commercially available live bacteria thought to have health benefits when ingested. A literature review of probiotic studies in the intensive care unit (ICU) found that in patients who receive probiotics, there is a 25% reduction in lung infection, known as ventilator-associated pneumonia (VAP). There is also an 18% reduction in the chance of developing any infection in the ICU. However, the studies reviewed were small and not well done. Therefore, whether probiotics are really helpful or not is unclear. Before a large carefully performed study is done to evaluate the effects of probiotics in critically ill patients, a pilot trial is needed. The investigators plan to study the feasibility of such a trial in mechanically ventilated ICU patients in 11 ICUs in Ontario, investigating whether orally ingested L. rhamnosus GG (a common probiotic) prevents VAP and other infections. The 4 goals of the pilot study will be to ensure that we can successfully enrol patients; follow the protocol faithfully; make sure patients don't receive additional probiotics, and estimate how much pneumonia exists in these patients. In a separate substudy, the investigators will evaluate the effects of probiotics on lower lung infiltration with potential harmful bacteria, stool bacteria, markers of immunity called cytokines, and markers of infection called endotoxin levels. The investigators plan to enroll 150 adults admitted to ICU and receiving mechanical ventilation. Following informed consent, patients will be randomized to either L. rhamnosus GG group or an identical placebo. Twice daily, patients will receive probiotics or placebo in a feeding tube. The investigators will record all infections and other important outcomes in the ICU. This study is very important in the ongoing search for more effective strategies to prevent serious infection during critical illness. Probiotics may be an easy-to-use, readily available, inexpensive approach to help future critically ill patients around the world.
This is a research study about an experimental (investigational) oral ETEC vaccine (ACE527). ACE527 is a live attenuated vaccine that is being made to prevent disease from enterotoxigenic Escherichia coli (ETEC), which causes watery diarrhea, largely in children living in developing countries and in travelers to those countries. This research study is also testing an investigational adjuvant called dmLT. An adjuvant is something that is added to a vaccine to make it work better. The purpose of this study is two-fold. First, Part A aims to find out if the vaccine by itself or the vaccine combined with the adjuvant is safe, tolerable, and initiates an immune response. Second, Part B aims to find out if the vaccine by itself or the vaccine combined with the adjuvant prevents diarrheal disease when challenged with ETEC H10407. About 60 healthy adults, ages 18-50, will participate in Part A, and they will be required to stay in the research facility for several nights for the first dose, but will not be required to stay overnight for the second and third doses. Participants will be assigned to receive either the vaccine alone, the vaccine with adjuvant, or placebo by mouth. Study procedures include: stool samples, blood samples, and documentation of side effects. Participants will be involved in study related procedures for about 8 months. Interested volunteers from Part A will along with volunteers who were never vaccinated in Part A will return to participate in Part B. These volunteers will be required to stay overnight in the research facility for several nights after challenge, after which they will be treated with antibiotics and sent home. Study procedures include stool samples, blood samples, and documentation of infection with ETEC H10407. If the vaccine with/without adjuvant is effective, the volunteers should not development diarrhea, but if the vaccine with/without adjuvant is not effective, the volunteers will have diarrhea for a few days.
To evaluate the efficacy and safety of YM060 once daily for female patients with diarrhea-predominant irritable bowel syndrome (D-IBS) for a long-term period (up to 52 weeks).
To investigate the effect of milk-based formulas on infections and immune functions in healthy children.
To elucidate Spinal Cord Stimulation (SCS) as treatment for IBS. An SCS system with a 4-polar electrode at the T5-8 level is implanted. In a randomized, cross-over study design, active stimulation is compared to a period without stimulation, with an ensuing tailing stimulation period, twice as long. Patients recorded average pain level, pain attacks, number of diarrheas and global quality of life. At the end of the study patients can choose to retain their SCS stimulation system or have it removed. The outcome of the present trial will show whether SCS is a useful treatment of IBS. The long-term follow-up will show the continuous amelioration of SCS over at least six months.
The purpose of the planned study is to investigate the effect of heat-treated lactobacilli on diarrhea outcome in healthy children 1-4 years old in a randomized, double-blind, placebo-controlled study.
Background: The incidence of gastrointestinal infections is very high. In Western countries at least 30% of the population suffers from at least one food-borne infection per year. Mostly because of the problem of antibiotic resistance, more emphasis is put on prevention of infections. One of the possibilities is to strengthen human resistance to gut infections by consumption of probiotics. A specific blend of probiotic lactic acid bacteria (Lactobacillus helveticus Rosell-52, Lactobacillus rhamnosus Rosell-11, Bifidobacterium longum Rosell-175) and a probiotic yeast (Saccharomyces boulardii), improved stool consistency and shortened the duration of diarrhea in a rat model of E.coli-induced diarrhea. These probiotics showed synergistic effects compared with administration of solely S. boulardii or a mixture of L. helveticus Rosell-52, L. rhamnosus Rosell-11, B. longum Rosell-175. Consumption of S. boulardii and a combination of L. helveticus Rosell-52, L. rhamnosus Rosell-11 reduced diarrhea in humans. Aim: To study whether probiotics improves the resistance of humans to enterotoxigenic E. coli (ETEC). Study design: The PROTETEC study is a parallel, double-blind, placebo-controlled 4-weeks intervention with probiotics in healthy volunteers. In this study, the effect of probiotic intervention vs placebo on several infection markers in response to an ETEC challenge is investigated. Participants will be randomly assigned to the probiotic or placebo group (n=30 per group). Subjects will be instructed to maintain their usual pattern of physical activity and their habitual food intake, but to standardize their dietary calcium intake. After an adaptation period of 2 weeks, subjects will be orally infected with a live, but attenuated, ETEC vaccine (strain E1392-75-2A; collection NIZO food research; dose 10E10 CFU). Before and after infection, a diary will be kept to record all food and drinks consumption (2x2 days) to assess the habitual dietary intake, as well as for daily recording of bowel habits and frequency and severity of gastrointestinal complaints. The following biological samples will be collected: 4x10 ml venous blood, a single fecal bolus (for screening) and 7x24 hrs feces. Blood is sampled for immune response analyses and the fecal samples are collected to quantify several infection- and immune system markers, to determine probiotic excretion, and to verify dietary calcium intake. Study population: Healthy males of 20-55 yrs of age. Interventions: Probiotics (capsules containing freeze-dried powder, probiotic dose per capsule 5x10E9 CFU; twice daily) or placebo (capsules with carrier material powder of identical appearance) Primary outcomes: Fecal ETEC excretion and severity of diarrhea (quantified by fecal output per day). Secondary outcomes: Serum immune response to ETEC, self-reported stool consistency scores and gastrointestinal complaints, relative fecal wet weight. Tertiary outcomes: sIgA and calprotectin in feces, probiotic persistence and levels of opportunistic pathogens in the endogenous microbiota.
The purpose of this study is to measure the independent and combined effects of interventions that improve sanitation, water quality, handwashing, and nutrition on child health and development in the first years of life.