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临床试验/NCT02920294
NCT02920294已完成不适用

Modulation of Small Intestinal Microbial Composition and Activity,Systemic Immune Adaptation and Blood Transcriptional Changes Induced by 2-wks Consumption With 2 Fermented Milk Products;a Randomized,Exploratory,Cross-over,Double Blind,Controlled Study in Ileostomy Patients

Maastricht University Medical Center1 个研究点 分布在 1 个国家目标入组 16 人开始时间: 2016年9月1日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
已完成
入组人数
16
试验地点
1
主要终点
Temporal microbial composition and activity in the small intestine in ileal effluent

研究概览

简要总结

To determine the small intestinal microbiota response in humans to dietary interventions for two consecutive weeks, and to relate this to parameters of intestinal barrier function and immune and metabolic responses in blood, as functional outcome parameters of host physiology

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Prevention
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 70 Years(Adult, Older Adult)
性别
All
接受健康志愿者
否

入选标准

  • •• Ileostomy installed at least 3 years prior to participation
  • •Free of any complications originating from the colectomy procedure for at least 1 yr prior to participation, with the exception of possible skin irritation at the location of the stoma
  • •BMI from 18 till 28 kg/m2
  • •Age from 18 till 70 years
  • •Available for entire study protocol.
  • •For female: If of child bearing potential, female subjects must be using or complying with methods of contraception (such as oral birth control pills, intra-uterine device, double barrier methods (like condoms and spermicide, etc.)

排除标准

  • •• History of cardiovascular, respiratory, urogenital, hepatic, haematological / immunologic, HEENT (head, ears, eyes, nose, throat), dermatological/connective tissue, musculoskeletal, metabolic/nutritional, endocrine, neurological diseases, allergy, laboratory assessments which might limit participation in or completion of the study protocol, and/or major surgery with the exception of total colectomy, hysterectomy and/or appendectomy.
  • •Subject with known lactose intolerance or with known or suspected allergy or hypersensitivity to any component of the study product(s) (milk protein for example) + sucrose + rhamnose
  • •Severe gastrointestinal symptoms. In case of mild gastrointestinal symptoms, the principal investigator and the medically responsible MD will judge eligibility to participate.
  • •Removal of more than 15 cm of the ileum during or at any moment after the colectomy procedure
  • •Abdominal surgery interfering with gastrointestinal function, upon judgment of the principal investigator and the medically responsible MD
  • •Use of medication, including proton pump inhibitors, non-steroidal anti-inflammatory drugs interfering with endpoints (but except oral contraceptives), within 14 days prior to and during participation.
  • •Consumption of any probiotic or prebiotic supplements or pre- and probiotics containing food products, investigational drugs or participation in any scientific intervention study which may interfere with this study (to be decided by the principal investigator), in the 4 weeks prior to the study and during study participation (E4 PreProbiotics).
  • •Use of antibiotics in the 4 weeks prior to the start of study and during study participation
  • •Prohibited use of pro-, pre- or synbiotics during study period and three months prior to start of study. A list with forbidden products will be provided'
  • •History of any side effects towards intake of pro- or prebiotic supplements of any kind.

研究组 & 干预措施

Probiotic 1

Active Comparator

Fresh fermented dairy drink containing yoghurt ferments consumed as follows: one bottle (100g) OD for 14 consecutive days

干预措施: Probiotic 1 (Dietary Supplement)

Probiotic 2

Active Comparator

Fresh fermented dairy drink containing probiotic strain consumed as follows: one bottle (100g) OD for 14 consecutive days

干预措施: Probiotic 2 (Dietary Supplement)

Placebo

Placebo Comparator

Acidified dairy drink without ferments consumed as follows: one bottle (100g) OD for 14 consecutive days

干预措施: Placebo (Dietary Supplement)

结局指标

主要结局

Temporal microbial composition and activity in the small intestine in ileal effluent

时间窗: 2 weeks intervention

The microbiome activity will be determined as a function of the diet by double strand cDNA production and random sequencing of mRNA enriched fractions of total effluent RNA obtained from the effluent samples at the start and end of each intervention period.

次要结局

  • Peripheral blood metabolome profiles(2 weeks intervention)
  • Number of participants with Gastrointestinal symptoms by Visual Analogue Scales(2 weeks intervention)
  • Small intestinal permeability by a multi sugar test (urinary recovery of test sugars)(2 weeks intervention)
  • Gene transcription response in blood by transcriptome patterns.(2 weeks intervention)
  • The level of whole blood immune responsiveness to a panel of standardized stimuli ex vivo(2 weeks intervention)
  • Short chain fatty acid profiles in ileal effluent(2 weeks intervention)
  • Occurrence and severity of treatment related adverse events(2 weeks intervention)
  • The levels of a panel of peripheral blood biomarkers related to immune, metabolic and hormonal status(2 weeks intervention)
  • Morning urine metabolome profiles(2 weeks intervention)
  • The relative survival of bacterial strains (colony forming unit enumeration on semi-selective culture plates)(2 weeks intervention)

研究者

申办方类型
Other
责任方
Sponsor

研究点 (1)

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