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Elderly VolunteersFIFTY+NCT05972590

Characterization of Fecal Microbiota in a Population Aged 50 to 75 Years Targeted by Seasonal Vaccination

A study testing Biological samples collection (blood + feces) in people with Elderly Volunteers, run by Bioaster at 1 site 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

The goal of this interventional study is to constitute a biological samples collection collected from healthy elderly volunteers and used for scientific purposes. The main questions it aims to answer are: Improving knowledge of the composition of the gut microbiota Identify, isolate and culture microbiota species of… Read more about this study

Who is it for?
Ages 50 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Elderly Volunteers
What is being tested?
Biological samples collection (blood + feces)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteFrance
Study dates
25 Jul 2023to 15 Dec 2023
Phase
Interventional
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 50 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Subjects aged between 50 and 75,
  • BMI between 18.5 and 29 kg/m2,
  • Normal clinical examination,
  • Written consent obtained

Who cannot join

  • Diagnosed acute or chronic gastrointestinal disease or complication (e.g., celiac disease, gastroesophageal reflux, gastric or duodenal ulcer, Crohn's disease, hemorrhoids, irritable bowel syndrome)
  • Infectious gastrointestinal event within 3 months prior to inclusion
  • Severe chronic disease (active cancer, HIV, severe renal failure, ongoing severe heart or liver or biliary disorders, arthritis) or severe chronic disease deemed incompatible with the conduct of the study by the investigator
  • Major surgical procedure likely to disrupt the intestinal microbiota, within 6 months prior to inclusion
  • Recent food allergy < 3 months prior to inclusion
  • Antibiotic, antiviral, antifungal, proton pump inhibitor or any other treatment likely to disrupt the microbiota in the 3 months prior to inclusion
Show all 18Show fewer
  • Previous or current use of a treatment that may disrupt the microbiota (e.g. laxatives, antidiarrheals, antacids...) in the last 3 months
  • Significant change in dietary habits or physical activities in the 3 months prior to inclusion
  • Consumption of more than 2 standard glasses of alcoholic beverages per day
  • Smoking > 20 cigarettes per day, illicit drug use,
  • Daily use of non-steroidal anti-inflammatory drugs (NSAIDs)
  • Severe psychiatric or neurological pathology
  • Subject with liquid stools (Bristol Score = 7) or very hard stools (Bristol Score = 1)
  • Any vaccination in the last month before inclusion
  • Subject unable to understand the purpose of the research, answer questions and give their decision to participate in the study
  • Subject already included in another research study involving the human subject
  • Subject under guardianship and whose guardianship objects to the participation of his/her protectee,
  • Subject not affiliated with a social security plan or not a beneficiary of such a plan

Trial locations and contacts

1 site in 1 country.

France1 site
  • Biofortis

    Paris, 75012

Other trials in France

About this study

Official title: Interventional, With Minimal Risks and Constraints Study Aiming at Constituting a Biological Samples Collection Constituted From Volunteers Aged Between 50 and 75 Years Old And Used For Scientific Purposes

The goal of this interventional study is to constitute a biological samples collection collected from healthy elderly volunteers and used for scientific purposes.

The main questions it aims to answer are:

  • Improving knowledge of the composition of the gut microbiota
  • Identify, isolate and culture microbiota species of interest in the field of health ageing or used as therapeutics associated to the vaccination
  • Determining the correlation between the gut microbiota composition and the immune response of individuals.
Read the detailed description

The compositional analysis of commensal bacterial populations collected from a variety of clinical samples has been recently made possible with the availability of Next Generation Sequencing (NGS) technologies. The term 'next-generation probiotics' (NGP) is now widely used to describe these commensal species of potential health interest.

However, this approach is still hampered by the fact that there are usually few or even no strains available for a number of commensal species.

In this context, BIOASTER has developed a specific technological process based on flow cytometry analysis and then sorting under strictly anaerobic conditions to target and cultivate commensal species of interest.

The goal of this study is to constitute a biological samples collection from elderly people, to proceed with the isolation of beneficial commensal strains such as Faecalibacterium prausnitzii, Akkermansia muciniphila and Oscillospiraceae, in a non-limitative way.

BIOASTER's objective is to strengthen technological support, provide new knowledges and tools for the development of next-generation products. Numerous biotherapeutics companies will benefit from this pipeline, ultimately improving the chances of survival in life-threatening diseases with unmet medical needs.

Elderly people will be recruited by the investigational unit Biofortis.

Blood (Whole blood + TruCulture tubes) and feces will be collected from each volunteer.

Being tested
Biological samples collection (blood + feces)
Keywords
Biobank, Health Ageing, Blood, TruCultures, Stools, Strain isolation, Probiotics, Immunity, Vaccination

What participants receive

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

  • Biological samples collection (blood + feces)Other

    Blood + stools samples will be collected from each volunteer

Study groups in NCT05972590
Study groupRoleWhat they receive
50-75 years old volunteers cohortOtherBiological samples collection Blood drawing + faeces collection
Receives: Other: Biological samples collection (blood + feces)

What is being measured

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

  1. Number and ratio of participants with per protocol collection of blood and feces

    Number of volunteers included in the study and number blood/feces pairs collected.

    Measured: Baseline

  2. Total number of bacteria strains collected

    Isolation and culture of bacteria of interest in anaerobic conditions: constitution of a biobank of Akkermansia muciniphila, Faecalibacterium prausnitzii and Oscillospiraceae) for research purposes.

    Measured: Baseline

  3. Fecal microbiome richness as assessed by alpha diversity

    Genus and species of bacteria contained in the intestinal microbiota (alpha diversity calculation)

    Measured: Baseline

Secondary outcomes (2)
  1. Immunophenotyping of volunteers as assessed by cytokines quantification

    serum samples will be analyzed by ELISA method to quantify cytokines

    Measured: Baseline

  2. Immunophenotyping of volunteers as assessed by flow cytometry on immune cells

    peripheral blood mononuclear cells will be stained with specific markers antibodies to characterize immune cells populations

    Measured: Baseline

Timeline

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

  1. First posted2 Aug 2023
  2. Study start25 Jul 2023
  3. Primary completion15 Dec 2023
  4. Study completion15 Dec 2023

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05972590
Sponsor's protocol ID
2023-A00947-38
Acronym
FIFTY+
Status last verified
Mar 2024
First submitted
10 Jul 2023
Last updated
19 Mar 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Biological samples collection (blood + feces) in people with Elderly Volunteers, run by Bioaster at 1 site 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 4 inclusion and 18 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 19 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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 and ratio of participants with per protocol collection of blood and feces (time frame: Baseline). The study lists 3 primary outcomes in all. 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 19 Mar 2024.

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