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Primary Immune DeficienciesDIPobiotaNCT02909244

Study of Gut Microbiota in Primary Immune Deficiency, Possibly Associated With Inflammatory Bowel Disease

An observational study of Primary Immune Deficiencies, run by Imagine Institute at 3 sites in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Some Primary Immune Deficiencies can be associated with an inflammatory bowel disease, mimicking Crohn disease : the Chronic Granulomatous Disease (CGD), the XIAP deficiency, and the TTC7A deficiency. Read more about this study

Who is it for?
Any age
Conditions the study is for
Primary Immune Deficiencies
What is being tested?
Biological sampling
How many people
51 participants
Where
3 sitesFrance
Study dates
Feb 2015to Feb 2017
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Inclusion of patients with PID Inclusion of control patients, without PID

Who may be able to join

None listed.

Who cannot join

  • Patients having a received a gene therapy or a Hematopoietic stem cell transplantation

Trial locations and contacts

3 sites in 1 country.

France3 sites
  • CHRU

    Lille, 59037

  • Saint-Louis Hospital

    Paris, 75010

  • Necker - Enfants Malades Hospital

    Paris, 75015

Other trials in France

About this study

Official title: Study of Gut Microbiota in Primary Immune Deficiencies, Possibly Associated With Inflammatory Bowel Disease (Chronic Granulomatous Disease, XIAP Gene Deficiency, or TTC7A Gene Deficiency)

Some Primary Immune Deficiencies can be associated with an inflammatory bowel disease, mimicking Crohn disease : the Chronic Granulomatous Disease (CGD), the XIAP deficiency, and the TTC7A deficiency.

This inflammatory bowel disease is frequent but inconstant, raising questions about other factors contributing to the disease. The aim of our study is to analyze, describe and compare the gut microbiota of patients with those primary immune deficiency, with or without intestinal disease.

The investigators can expect, in the long term, to compare on a same patient, the gut microbiota evolution, and to assess the role of gut microbiota modifications on the onset of an inflammatory bowel disease.

Read the detailed description

The investigators will include patients (adults or children), with Primary Immune Deficiency (CGD, XIAP or TTC7A deficiencies), and they will collect feces samples from them.

In parallel, as control groups, patients with no inflammatory bowel disease and no primary immune deficiency will be included, and also patients suffering from Crohn's disease without known primary immune deficiency.

The laboratory collaborators will then realize analyzes on the microbiota collected for all patients.

The study team will then analyze the microbiota composition of the different types of patients, and try to identify some factors, associated with the appearance of an inflammatory disease on these patients.

Being tested
Biological sampling
Medical subject headings
Primary Immunodeficiency Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Biological samplingBiological

    Biological sampling

Study groups in NCT02909244
Study groupRoleWhat they receive
Patients with PIDBiological sampling: collection of feces. In case of blood samples availability in hospital biobank : analyzes of these samples in the frame of this research
Receives: Biological: Biological sampling
Control patients, with no PIDBiological sampling: collection of feces.
Receives: Biological: Biological sampling

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of factors associated with the onset of an inflammatory colitis in patients with three Primary Immuno-Deficiencies, identified in the study population

    Measured: 3 years and 8 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Sep 2016 (estimated)
  2. Study startFeb 2015
  3. Primary completionFeb 2017
  4. Study completionFeb 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Prospective
Enrolment
51 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02909244
Sponsor's protocol ID
IMIS2014-02
Acronym
DIPobiota
Status last verified
Aug 2017
First submitted
5 Sep 2016
Last updated
25 Aug 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Primary Immune Deficiencies, run by Imagine Institute at 3 sites in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 0 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Aug 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of factors associated with the onset of an inflammatory colitis in patients with three Primary Immuno-Deficiencies, identified in the study population (time frame: 3 years and 8 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Aug 2017.

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