[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"microbioata\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:microbioata":27},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,2,0,[8,41],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":4,"enrollmentInfo":19,"targetDuration":22,"studyType":23,"phases":4,"briefSummary":24,"conditions":25,"keywords":4,"overallStatus":29,"whyStopped":4,"lastUpdateSubmitDate":30,"lastUpdatePostDateStruct":31,"startDateStruct":34,"completionDateStruct":36,"leadSponsor":38,"locationsCount":4},"100565251","respiratory-microbioma-and-respiratory-complications-after-hematopoietic-stem-cell-transplantion-100565251",false,"NCT06639750","Respiratory Microbioma and Respiratory Complications After Hematopoietic Stem Cell Transplantion","Dynamic Evaluation of Composition and Evolution of Respiratory Viroma\u002FMicrobioma of Patients Who Have Undergone Hematopoiteic Stem Cell Transplantation (HSCT), as a Possible Biomarker of Occurrence of Post-HSCT Pulmonary Complications.","VIREMIG","Inclusion Criteria:\n\n* Male or female, aged 18 or over\n* French-speaking\n* Followed in the centre's haematology department with a project for a haematopoietic stem cell allograft\n* Whatever the haemopathy, previous treatments, type of transplant (pheno, geno, haplo-identical), type of graft (bone marrow, peripheral stem cells, cord blood), any conditioning (myeloablative or non-myeloablative), any immunosuppressive protocol.\n* Be affiliated to the social security system\n* Person able to understand the information and sign the consent form.\n* Informed consent must be collected and signed\n\nExclusion Criteria:\n\n* Refusal to take part in the research\n* Failure to sign the consent form\n* Contraindication to nasopharyngeal swabbing","ALL","18 Years",{"count":20,"type":21},120,"ESTIMATED","2 Years","OBSERVATIONAL","Allogeneic haematopoietic stem cell transplantation (AHSCT) is a therapeutic resource for many haemopathies. The number of HSCTs has risen sharply in recent years due to the use of attenuated conditioning, which has increased the risk of non-haematological complications. Pulmonary pathologies are a frequent cause of complications following HSCA, both infectious and non-infectious(1,3,4).\n\nAmong these, late non-infectious pulmonary complications (LNIPC), all taken together, occur in 25% of post-HSCA cases(1). These NIPCs, the most common of which is bronchiolitis obliterans, significantly alter the prognosis(4,5). The pathophysiology of CPTNI is poorly understood, but it seems that the occurrence of a viral respiratory infection (pre- or post-ACSH) may be a potential trigger for the onset of CPTNI(1). These viral infections can become \"chronic\", given that viral clearance is impaired by the underlying immunodepression, and can thus cause chronic inflammation leading to the fibrosing and irreversible process of obliterative bronchiolitis(6). Given the prognostic importance of this type of CPTNI, it seems essential to gain a better understanding of its pathophysiology, which may involve a number of mechanisms: cellular expression of the graft and its evolution, disruption of the host response (innate immunity) following viral infection, influence of the microbiome and alteration of epithelial repair(1,3,5). Interest in the digestive and respiratory microbiome has been growing in recent years(7-9). The literature is gradually being enriched with data on the links between infection, the microbiome and chronic respiratory pathology and, in the post-HSCA context, a potential link between the enteric microbiome and Chronic Graft Versus Host Disease (cGVHD).\n\nA pilot study comparing respiratory microbiomes using sequencing and metatranscriptomic analysis on 20 respiratory samples (nasopharyngeal swab and bronchoalveolar lavage pairs) taken under the conditions of the proposed study showed that the technique was highly feasible and highly sensitive.\n\nThe aim of this study is therefore to use meta-genomics to investigate the respiratory virome\u002Fmicrobiome in a population of patients who have undergone HSCA: eukaryotic and prokaryotic viruses, bacterial expression and the expression (meta-transcriptomics) of graft-derived cell lines and their possible association with the occurrence of post-HSCA respiratory complications (infectious and non-infectious).\n\nNo study has assessed the link between the composition of the respiratory virome\u002Fmicrobiome and the occurrence of respiratory events (infectious and CPTNI post ACSH), but also more broadly the link with the composition of the microbiome in the broad sense (respiratory virome, respiratory and digestive microbiota).\n\nThe aim of this study is to establish a respiratory viral and bacterial map as a possible biomarker of the occurrence of respiratory events (infectious and CPTNI), thus enabling more personalised monitoring of patients at risk of CPTNI and management of immunosuppressive treatment of patients at risk of an infectious episode, with risk assessment based on the composition of the respiratory virome.\n\nThe interest of this study is that it is multidisciplinary and transdisciplinary, studying the respiratory pathologies and infections of haematology patients and combining clinical and fundamental research, with expected spin-offs for direct patient care (personalised monitoring and management of immunosuppressive treatments).",[26,27,28],"Hematopoietic Stem Cell Transplantation","Microbioata","Respiratory Complications","NOT_YET_RECRUITING","2026-03-17",{"date":32,"type":33},"2026-03-18","ACTUAL",{"date":35,"type":21},"2026-04-01",{"date":37,"type":21},"2030-04-01",{"name":39,"class":40},"University Hospital, Caen","OTHER",{"id":42,"slug":43,"hasResults":11,"nctId":44,"briefTitle":45,"officialTitle":46,"acronym":4,"eligibilityCriteria":47,"healthyVolunteers":48,"sex":17,"minAge":18,"maxAge":49,"enrollmentInfo":50,"targetDuration":4,"studyType":52,"phases":53,"briefSummary":55,"conditions":56,"keywords":4,"overallStatus":66,"whyStopped":4,"lastUpdateSubmitDate":67,"lastUpdatePostDateStruct":68,"startDateStruct":70,"completionDateStruct":72,"leadSponsor":74,"locationsCount":76},"100470968","augmented-response-of-volatile-biomarkers-in-assessment-of-oesophagogastric-cancer-aroma-1--bioresource-100470968","NCT05412758","Augmented Response of Volatile Biomarkers in Assessment of Oesophagogastric Cancer (AROMA 1 \u002F BIORESOURCE)","Augmented Response of Volatile Biomarkers in Assessment of Oesophagogastric Cancer","AROMA 1 Inclusion Criteria:\n\n1. Aged 18-90years\n2. Oesophageal\u002Fgastric cancer cohort: participants with biopsy proven adenocarcinoma who are treatment naïve\n3. Control cohort: participants with normal or benign upper gastrointestinal disease determined on: • Endoscopy within 1 year • Planned endoscopy\n\nAROMA 1 Exclusion criteria:\n\nPatients with the following characteristics will not be eligible for inclusion in this study:\n\n1. Oesophageal squamous cell carcinoma\n2. Previous oesophageal and gastric resection\n3. Received neoadjuvant chemotherapy for oesophageal or gastric cancer\n4. History of another cancer within three years\n5. Any form of oesophageal dysplasia (control cohort only)\n6. Previously diagnosed with Barrett's oesophagus (control cohort only)\n7. Active infection, on immunosuppressive medications or antibiotic therapy within the last 8 weeks\n8. Participants with co-morbidities preventing breath collection\n9. Allergies to any of the constituents of the nutrient drink including glucose, glycerol, iron sulphate, Maltodextrin (Corn, Potato), Xanthan Gum, Potassium Chloride, tyrosine, phenylalanine, and glutamic acid\n10. Unable or unwilling to provide informed written consent\n11. Pregnant participants\n\nBIORESOURCE inclusion criteria:\n\n1. Aged 18- 90years\n2. Oesophageal\u002Fgastric cancer cohort: participants with biopsy proven adenocarcinoma who are treatment naïve\n3. Oesophageal\u002Fgastric control cohort: participants with normal or benign upper gastrointestinal disease determined on: • Planned endoscopy\n\nBIORESOURCE exclusion criteria:\n\n1. Oesophageal squamous cell carcinoma\n2. Previous oesophageal and gastric resection\n3. Received neoadjuvant chemotherapy for oesophageal or gastric cancer\n4. History of another cancer within five years\n5. Any form of oesophageal dysplasia (oesophageal\u002Fgastric control cohorts only)\n6. Previously diagnosed with Barrett's oesophagus (oesophageal\u002Fgastric control cohorts only)\n7. Active infection, on immunosuppressive medications or antibiotic therapy within the last 8 weeks\n8. Participants with co-morbidities preventing breath collection\n9. Unable or unwilling to provide informed written consent\n10. Pregnant participants",true,"90 Years",{"count":51,"type":21},648,"INTERVENTIONAL",[54],"NA","Cancer of the stomach and oesophagus is among the world's top five cancers. Survival rates are very poor as the disease presents late and early symptoms are non-specific. The study team has developed a non-invasive test for cancers of the stomach and oesophagus based on the detection of volatile organic compounds in exhaled breath. These compounds are known to be produced by both cancers as well as cancer associated bacteria within the gut.\n\nThe proposed innovation is to improve the accuracy of this test by investigating whether simple metabolic substrates can increase the production of these volatile organic compounds by both the tumour and its associated bacteria.",[57,58,27,59,60,61,62,63,64,65],"Volatile Organic Compounds","Microbiome","Breath Analysis","Oesophageal Cancer","Gastric Cancer","Volatalomics","Metabonomics\u002FLipidomics","Microbiome Analysis","Transcriptomics","RECRUITING","2025-01-29",{"date":69,"type":33},"2025-01-31",{"date":71,"type":33},"2022-02-28",{"date":73,"type":21},"2025-10",{"name":75,"class":40},"Imperial College London",1]