NCT04082221

Brief Summary

The human gastrointestinal tract shelters a complex and dynamic population of microorganisms, the gut microbiota, which plays an important role in immune and metabolic homeostasis. In recent years several major diseases were linked with alterations in the gut microbiome composition. There are known factors which can influence gut microbiata composition. For example diet is known to play a fundamental role in determining the composition of the intestinal microbiota over time. However, there are very few studies evaluating how collection and DNA isolation methods affect microbiome composition.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Mar 2019

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 11, 2019

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2019

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 5, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 5, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 9, 2019

Completed
Last Updated

September 11, 2019

Status Verified

September 1, 2019

Enrollment Period

4 months

First QC Date

September 5, 2019

Last Update Submit

September 9, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Collection of stool samples

    Collection of 2 stool samples in one week using different conditions DNA extraction from all samples will be performed using QIAamp Power Fecal (Qiagen, N. V) and ZymoBIOMICS (Zymo Research, CA.) to assess how different commercially available stool sampling kits and fecal DNA extraction kits influence the apparent composition of the gut microbiome

    one week

Interventions

no intervention

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Healthy subjects

You may qualify if:

  • Age between 18-60
  • Body mass index (BMI) 18,5- 29,9 kg/m2
  • Willingness to participate in the study examination and fecal sample collection process

You may not qualify if:

  • Subjects currently on medication (with the exception of contraceptives)
  • Subjects with acute or chronic disease
  • Pregnant or lactating women
  • Subjects with a history of drug or alcohol abuse
  • Subjects on a vegan diet
  • Subjects who are legal incapacitated or their circumstances do not enable the patient to fully understand the nature, significance and scope of this study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Experimental and Clinical Research Center, Clinical Research Unit

Berlin, 13125, Germany

Location

Related Publications (2)

  • Hart ML, Meyer A, Johnson PJ, Ericsson AC. Comparative Evaluation of DNA Extraction Methods from Feces of Multiple Host Species for Downstream Next-Generation Sequencing. PLoS One. 2015 Nov 24;10(11):e0143334. doi: 10.1371/journal.pone.0143334. eCollection 2015.

    PMID: 26599606BACKGROUND
  • Wesolowska-Andersen A, Bahl MI, Carvalho V, Kristiansen K, Sicheritz-Ponten T, Gupta R, Licht TR. Choice of bacterial DNA extraction method from fecal material influences community structure as evaluated by metagenomic analysis. Microbiome. 2014 Jun 5;2:19. doi: 10.1186/2049-2618-2-19. eCollection 2014.

    PMID: 24949196BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

Stool (stool DNA), Blood Serum and Blood Plasma

Study Officials

  • Anja Mähler, PhD

    Franz-Volhard-Centr. at the Experimental and Clinicial Research Center

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

September 5, 2019

First Posted

September 9, 2019

Study Start

March 11, 2019

Primary Completion

June 30, 2019

Study Completion

September 5, 2019

Last Updated

September 11, 2019

Record last verified: 2019-09

Locations