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Aging, HealthyLONGEVIBIOMENCT07912164

Fecal Microbiota Transplantation (FMT) to Slow Biological Aging

A study testing Fecal microbiota transplantation delivery through oral capsules (HBI MBiotix Caps) in people with Aging, Healthy and Aging and Cognitive Health, run by Human Biome S.A..

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Official record
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Trial summary

The goal of this clinical trial is to evaluate if multi-dose fecal microbiota transplantation (FMT) capsules can safely and effectively slow down biological aging and reduce chronic low-grade inflammation in adults aged 45 to 80 with metabolic neglect. Read more about this study

Who is it for?
Ages 45 to 80 years
What is being tested?
Fecal microbiota transplantation delivery through oral capsules (HBI MBiotix Caps)
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
68 participants
Where
No sites listed yet
Study dates
Dec 2026to Dec 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

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 45 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Voluntary written informed consent signed prior to any study-related procedures.
  • Age between 45 and 80 years (inclusive) at the time of screening.
  • Classified as "metabolically neglected" with documented pre-disease conditions or regulated early-stage chronic disorders.
  • Accelerated biological aging rate 1.1, OR between 1.05 and 1.099 combined with chronic low-grade inflammation (inflammaging).
  • Preserved cognitive function with a Montreal Cognitive Assessment (MoCA) score between 24 and 30 points.
  • Physical ability to perform computerized cognitive tests on a touch-screen tablet.
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  • Commitment to maintaining stable dietary and physical activity habits throughout the study period.
  • Possession of a home freezer and ability to strictly comply with cold-chain storage logistics for investigational products and stool samples.
  • Demonstrated ability to swallow large capsules.
  • Adequate baseline laboratory parameters (such as blood counts and kidney function).
  • For women of childbearing potential: agreement to use a highly effective method of contraception throughout the study and for 30 days post-intervention.
  • Readiness to ensure presence at the registered home address to receive scheduled frozen-chain courier shipments.

Who cannot join

  • Systemic antibiotic therapy within 12 weeks prior to baseline.
  • Supplementation with any commercial pre- or probiotics within 4 weeks prior to baseline.
  • Diagnosed malignancy within the past 5 years (except fully cured basal cell carcinoma or cervical cancer in situ).
  • Participation in any other clinical study or trial within 30 days prior to consent or during this study.
  • Pregnancy, breastfeeding, or planning a pregnancy during the study and for 30 days post-intervention.
  • Known hypersensitivity, intolerance, or allergy to any component of the investigational product (MBiotix HBI Caps), placebo, preparation antibiotics (Neomycin, Metronidazole), antibiotic placebo, or bowel cleansing solution (macrogols).
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  • Pre-existing hearing loss, chronic tinnitus, or diagnosed vestibular disorder. History of or active peripheral neuropathy of any etiology.
  • Myasthenia gravis or other neuromuscular transmission disorders.
  • Concurrent, ongoing use of loop diuretics, other aminoglycoside antibiotics, or known nephrotoxic drugs.
  • Severe, unstable, or uncontrolled comorbidities, including NYHA Class III/IV heart failure, unstable angina, or myocardial infarction within the past 6 months.
  • Severe hepatic impairment (Child-Pugh Class C) or severe renal impairment (eGFR < 30 mL/min/1.73 m²).
  • Active, severe psychiatric disorders (e.g., severe depression with active suicidal ideation, psychotic disorders, unstable bipolar disorder).
  • Diagnosis of progressive neurodegenerative diseases (Parkinson's, Alzheimer's) or moderate-to-advanced dementia.
  • Active, clinically significant inflammatory bowel disease (Crohn's disease, ulcerative colitis) or other severe gastrointestinal disorders.
  • Evidence of gastrointestinal mucosal damage (ulceration, perforation, bleeding) within 7 days prior to the first product dose.
  • Clinically significant immunosuppression, including chronic systemic corticosteroids, HIV infection with a CD4+ cell count < 200/µl, history of solid organ or hematopoietic stem cell transplantation.
  • Active infection requiring antibiotics during the induction phase or anticipated antibiotic use during the first 7 days post-induction.
  • Prior fecal microbiota transplantation (FMT) treatment for indications other than recurrent C. difficile infection.
  • Significant dysphagia precluding safe capsule ingestion.
  • Inadequate baseline laboratory parameters (such as blood counts and kidney function).
  • Any medical condition or circumstance judged by the Principal Investigator to compromise participant safety or protocol adherence.
  • Anticipated inability to comply with study procedures, such as missing scheduled follow-up visits, lacking reliable home freezer storage, or having a lifestyle/occupation that prevents proper cold-chain product handling or consistent attendance.

About this study

Official title: A Randomized, Double-blind, Placebo-controlled Research Study Evaluating the Efficacy and Safety of Multi-dose Fecal Microbiota Transplantation (FMT) in Capsule Form as an Intervention to Slow Down the Rate of Biological Aging.

The goal of this clinical trial is to evaluate if multi-dose fecal microbiota transplantation (FMT) capsules can safely and effectively slow down biological aging and reduce chronic low-grade inflammation in adults aged 45 to 80 with metabolic neglect.

The main questions it aims to answer are:

Read more
  • Can oral FMT capsules significantly slow the biological pace of aging as measured by the DunedinPACE epigenetic clock?
  • Can FMT successfully reduce chronic systemic inflammation (measured by markers such as suPAR, IL-6, and hs-CRP)?

Researchers will compare participants receiving the active product to those receiving a matching placebo to see if the microbiome intervention improves metabolic health and cognitive function via the gut-brain axis.

Participants will:

  • Undergo a short-term preparation phase involving targeted antibiotics and standard bowel cleansing.
  • Receive an 2 initial induction doses of active product (or placebo) followed by 5 regular booster cycles administered approximately every 4 weeks.
  • Attend periodic clinical visits for physical examinations, blood draws, stool sample collection (at home), and cognitive testing using the CANTAB platform and MoCA scale.
  • Maintain a participant diary to record adverse events (AE), product administration, stool sample collection, and dietary habits.
Being tested
Fecal microbiota transplantation delivery through oral capsules (HBI MBiotix Caps), PLACEBO for Fecal microbiota delivery through oral capsules
Keywords
Fecal Microbiota Transplantation (FMT), Gut Microbiome, Biological Aging, DunedinPACE, Metabolic Neglect, Inflammaging, Longevity, Healthy Aging, Multi-dose FMT
Medical subject headings
Inflammation, Metabolic Syndrome

What participants receive

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

  • Fecal microbiota transplantation delivery through oral capsules (HBI MBiotix Caps)Procedure or surgery

    Fecal microbiota transplantation (FMT) capsules administered in an initial induction phase followed by subsequent booster cycles. Frozen oral capsules containing full-spectrum human gut microbiota given as an initial induction (comprising a single dose on Day 7 and split daily doses on Days 9-14) following preparation, followed by intermittent 6-day booster cycles administered approximately every 4 weeks.

  • PLACEBO for Fecal microbiota delivery through oral capsulesProcedure or surgery

    Placebo Capsules (Comparator): Frozen oral capsules identical in appearance, packaging, and dosing schedule to the active product, containing pharmacologically inert substances. Administered as an initial induction phase (single dose on Day 7 and split daily doses on Days 9-14) following preparation, followed by intermittent 6-day booster cycles administered approximately every 4 weeks

Study groups in NCT07912164
Study groupRoleWhat they receive
MBiotix HBI CapsExperimentalMBiotix HBI Caps (FMT capsules) + Preparation antibiotics (Neomycin and Metronidazole) + Standard bowel cleansing (Macrogols). Participants receive targeted preparation antibiotics followed by bowel cleansing, and then a multi-dose regimen of fecal microbiota transplantation (FMT) capsules (MBiotix HBI Caps) in an initial induction phase and subsequent booster cycles.
Receives: Procedure: Fecal microbiota transplantation delivery through oral capsules (HBI MBiotix Caps)
PlaceboPlacebo comparatorPlacebo Capsules (matching MBiotix HBI Caps) + Antibiotics Placebo (matching two active antibiotics) + Standard bowel cleansing (Macrogols). Participants receive matching placebo treatments for both the preparation antibiotics and the oral capsules (MBiotix HBI placebo), along with the same standard bowel cleansing and multi-dose schedule (an initial induction phase and subsequent booster cycles).
Receives: Procedure: PLACEBO for Fecal microbiota delivery through oral capsules

What is being measured

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

  1. Percentage of Participants Achieving Clinical and Biological Response (Responder Rate)

    The primary outcome is the proportion of participants categorized as "Responders" following multi-dose fecal microbiota transplantation (MBiotix HBI Caps) compared to placebo. A participant is classified as a Responder if they demonstrate objective physiological improvement from Baseline to Week 13 and/or Week 26, defined as meeting at least one of the following two pre-specified criteria:

    • Epigenetic Deceleration: A reduction of at least 5% from baseline in the DunedinPACE biological pace-of-aging algorithm.
    • Attenuation of Inflammaging: A reduction of at least 25% from baseline in at least one circulating systemic inflammatory marker from the predefined panel (provided the marker was significantly elevated at baseline per study inclusion criteria).

    Results will be reported as the percentage of participants in each treatment arm meeting this composite response definition.

    Measured: Baseline, Week 13, and Week 26

Timeline

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

  1. First posted3 Nov 2026
  2. Study startDec 2026 (estimated)
  3. Primary completionDec 2027 (estimated)
  4. Study completionDec 2027 (estimated)

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
68 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07912164
Sponsor's protocol ID
13/HBI/2026
Acronym
LONGEVIBIOME
Status last verified
Oct 2026
First submitted
23 Oct 2026
Last updated
3 Nov 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Fecal microbiota transplantation delivery through oral capsules (HBI MBiotix Caps) in people with Aging, Healthy and Aging and Cognitive Health, run by Human Biome S.A..

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 12 inclusion and 22 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: opening soon, as of the sponsor's last update on 3 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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?

This study is still under way. Results are not available in the source record yet.

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?

Percentage of Participants Achieving Clinical and Biological Response (Responder Rate) (time frame: Baseline, Week 13, and Week 26). 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 3 Nov 2026.

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