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Идёт набор NCT05323357

Bern Human Organoid-Study to Study Host-microbe Interaction

— Наблюдательное Organoids Allergy and Immunology Microbiota

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают
Это наблюдательное исследование: исследуемое лечение участникам по протоколу не назначают.
Кому может быть актуально
Состояния в реестре: Organoids, Allergy and Immunology, Microbiota. Базовые параметры: 18 лет — 80 лет · Все.
Что важно проверить
Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится
Швейцария
Следующий шаг
Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

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Официальное название

Establishment of Human Organoid Lines as a Tool to Dissect Molecular Pathways of Host-microbiota Interactions

Обзор

The human body inhabits a complex consortium of different microbes which together form the microbiota. Virtually every surface of the human body is colonized by a distinct microbiota, forming complex communities. An increasing number of research results indicates that changes in the microbiota can have vast effects on the health of its host. Most studies investigating the microbiota were conducted on animals, as many interventions and investigations cannot be performed on humans due to ethical considerations. This raises the question if findings from experimental studies are translational and can benefit patients. That becomes especially apparent when trying to dissect molecular mechanisms involved in this fine-tuned interplay between nutrients, the microbiota, and its host. By establishing human organoid cultures from the large and small intestine that can be exposed to microbes and/or microbial products with subsequent transcriptomic, epigenetic and immunological analysis, the investigators aim to generate findings with high translational potential with new insights into the complex interaction of the microbiota, the host and its immune system.

Подробное описание

* Data obtained from participants will be recorded in the database Redcap to ensure high-quality data recording * Establishment of human organoid cultures are standardized by published protocols (Pleguezuelos-Manzano et al. 2020)

Первичные конечные точки

  • Assessment of changes in the transcriptomic profile of epithelial cells before and after organoid culture [Срок оценки: 3 Years]
  • Assessment of changes in the epigenome of epithelial cells before and after organoid culture [Срок оценки: 3 Years]
  • Transcriptomic and Epigenomic Landscape of host-microbiota Interaction [Срок оценки: 3 Years]
  • Host-Microbiota interaction - Stem cell maintenance and Cell Differentiation [Срок оценки: 3 Years]
Вторичные конечные точки (2)
  • 3D-to-2D Transwell System [Срок оценки: 3 Years]
  • Gut-on-a-chip [Срок оценки: 3 Years]

Критерии участия

Критерии включения

  • Signed informed consent
  • Indication for upper or lower endoscopic procedure
  • Ability to understand and follow study procedures and understand informed consent
  • Age 18-80 years
  • Negative pregnancy test result prior to study enrollment of female study participants (test will be performed prior to enrollment)
  • BMI between 18.5 and 30 kg/m2

Критерии исключения

  • Disease known to chronically affect gut microbiota, gut epithelium or gut-associated immune system, namely inflammatory bowel disease, diverticulitis, microscopic colitis, liver cirrhosis, malignancy within the digestive tract, systemic sclerosis, coeliac disease, common-variable immunodeficiency, diabetes mellitus
  • Medication with immunosuppressants (e.g. corticoids, biological therapy)
  • Current diagnosis of a hematological disorder (e.g. anemia with hemoglobin <7 g/dl, leukemia) or any other absolute contraindication for blood draw
  • Women who are pregnant
  • Serious coagulation disorder, relevant thrombocytopenia (<50'000/ul), double platelet-inhibition, oral anticoagulation (ASS therapy is possible)
  • Known or suspected non-compliance, drug, or alcohol abuse
  • Inability to follow the procedures of the study, e.g., due to language problems, psychological disorders, dementia, etc. of the participant
  • Previous enrolment into the current study
  • Enrolment of the investigator, his/her family members, employees, and other dependent persons
  • Inability or unwillingness to provide blood samples and tissue samples (biopsies)
  • Participants taking oral anticoagulant or with bleeding disorders who would be at much higher risk of bleeding after biopsy samples or who are contraindicated for an endoscopic examination
  • Patients unable to give informed consent
  • Patients that have been under antibiotic therapy in the last 4 weeks
  • Participation in other clinical study interfering with study procedures
  • Potential study participants that wish not to be informed about random results acquired during the study (e.g., during endoscopy or genetic analysis) relevant for their health and for prevention of diseases

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Модель наблюдения
Только случаи

Центры проведения

Швейцария · 1 центр
  • Inselspital, University Hospital Bern — Bern

Публикации

  • Pleguezuelos-Manzano C, Puschhof J, van den Brink S, Geurts V, Beumer J, Clevers H. Establishment and Culture of Human Intestinal Organoids Derived from Adult Stem Cells. Curr Protoc Immunol. 2020 Sep;130(1):e106. doi: 10.1002/cpim.106. PMID 32940424

Идентификаторы

NCT: NCT05323357 · 2021-01865

Первоисточники (государственные реестры)

Открыть это исследование на ClinicalTrials.gov ↗