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Alcohol Use DisorderFIB-ALCNCT07371286

Administration of Fiber as a Dietary Supplement to Improve the Management of Alcohol Withdrawal

A study testing Administration of fibers as a dietary supplement in people with Alcohol Use Disorder and Supplementation, run by Assistance Publique - Hôpitaux de Paris.

Not yet recruiting

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

Sites and contacts
Official record
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Trial summary

The goal of this clinical trial is to demonstrate that a fiber-enriched diet (with a high proportion of inulin and pectin) combined with standard care can reduce intestinal permeability in patients with alcohol use disorder (AUD) aged between 19 and 65. Read more about this study

Who is it for?
Ages 19 to 65 years
What is being tested?
Administration of fibers as a dietary supplement
Could I receive a placebo?
No, everyone receives an active treatment
How many people
138 participants
Where
No sites listed yet
Study dates
Feb 2026to Feb 2026
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 19 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Women or men,
  • aged >18 and ≤ 65,
  • French-speaking,
  • active alcohol users (as defined by the criteria in the Diagnostic and Statistical Manual of Mental Disorders, 5th edition, DSM-5)
  • who agree to be hospitalized for alcohol withdrawal for a period of 7 days
  • Affiliated with or eligible for social security.
  • Negative pregnancy test (for patients of childbearing age)

Who cannot join

  • any other addictive disorder (except tobacco),
  • inflammatory bowel disease or any other chronic inflammatory disease,
  • current cancer,
  • metabolic diseases such as obesity (BMI ≥ 30 kg/m²) kg/m2) or a history of bariatric surgery,
  • severe cognitive impairment (MMSE < 24),
  • psychiatric comorbidities including suicide risk,
Show all 14Show fewer
  • cirrhosis or significant fibrosis (≥F2) defined by a Fibroscan value >7.6 kPa,
  • pregnancy or breastfeeding,
  • taking antibiotics, probiotics, or prebiotics in the 2 months prior to inclusion,
  • taking non-steroidal anti-inflammatory drugs or glucocorticoids in the month prior to inclusion.
  • taking baclofen, disulfiram, naltrexone, or acamprosate.
  • Participation in another interventional study involving human subjects or being in the exclusion period following a previous study involving human subjects, if applicable
  • Patients under AME
  • Patients under guardianship, trusteeship, or any other legal protection measure

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

About this study

Official title: Administration of Fiber as a Dietary Supplement to Improve the Management of Alcohol Withdrawal - Randomized Controlled Open-label Study - FIB-ALC

The goal of this clinical trial is to demonstrate that a fiber-enriched diet (with a high proportion of inulin and pectin) combined with standard care can reduce intestinal permeability in patients with alcohol use disorder (AUD) aged between 19 and 65.

The hypothesis of our study is that a diet rich in different dietary fibers (mainly inulin and pectin), by modifying the gut microbiota and its metabolites, will induce a decrease in intestinal permeability, restore the composition of the gut microbiota and its metabolites, and further improve abstinence, levels of craving and anxiety, inflammation, steatosis, and hepatic fibrosis in patients with alcohol use disorder.

Read more

The study consists of two parallel groups (a group eating fiber-rich snacks every day for 28 days (in addition to their usual care) versus a group not eating any snacks).

Participants will be required to provide stool, blood, and saliva samples, and complete questionnaires.

Read the detailed description

Our study proposes testing a new therapeutic target for alcohol addiction: the gut microbiota, which could have a major impact on the prognosis for these patients, or for other addictive behaviors. Dietary fiber can modify alcohol-related intestinal dysbiosis and improve alcohol-induced changes in the intestinal barrier. Given the potential life-threatening nature of alcohol dependence, our study is the first to evaluate the effectiveness of a high-fiber diet in reducing alcohol consumption, increasing alcohol abstinence rates, and improving addictive behavior, cravings, and anxiety and depression symptoms in patients with severe alcohol addiction. The secondary objectives will allow us to study certain mechanisms involved in these effects, with a particular focus on the gut-brain axis. Given the difficulty of managing this chronic condition, if our results are positive, dietary fiber and dietary modulation could become an additional therapeutic option for alcohol withdrawal, improving prognosis and directly benefiting these patients. Furthermore, compared to other treatments used for alcohol addiction, fiber, through its mode of action, could also improve alcohol-related complications.

Although there is no official maximum intake for dietary fiber, excessive consumption, especially when the amount is increased dramatically over a short period of time, can cause minor, non-severe side effects such as gas and bloating. However, our intervention will not exceed the maximum recommended fiber intake recommended by scientific societies, which will reduce the risk of adverse effects. The constraints for patients are minimal and mainly involve eating the bite-sized pieces in addition to their usual meals and completing specific questionnaires to determine their impact on diet, addictive behaviors, and quality of life.

Subjects participating in the study will receive fiber-enriched food bite-sized pieces (16 bite-sized pieces/day for a total of 16 g of fiber: 8 g of inulin and 8 g of pectin) developed by Carembouche every day for 28 days. To increase compliance, different flavors will be offered (citrus, coffee, vanilla, chocolate) for the patient to choose from at the time of inclusion. The bite-sized pieces will be packaged in batches, one package per day, to be stored at room temperature. The bite-sized pieces will be supplied by Carembouche and stored in the department in a closed cupboard, away from light and in accordance with the manufacturer's instructions. Patients will receive the bite-sized pieces during their hospital stay and will return home with the quantity needed for the following 7 days. During the visit on day 14, patients will receive the quantity needed for the remaining 14 days of the protocol. The treatment includes a phase of gradual dose increase with 4 bite-sized pieces on day 1, 8 on day 2, 12 on day 3, and 16 from day 4 until the end of the study. During this adaptation period, patients will be able to choose flavors according to their taste preferences.

Being tested
Administration of fibers as a dietary supplement
Keywords
Alcohol, Dietary fibers, Food supplementation, Intestinal permeability, Misuse
Medical subject headings
Alcoholism

What participants receive

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

  • Administration of fibers as a dietary supplementDietary supplement

    Food bite-sized pieces containing 16 g of dietary fiber (pectin and inulin).

Study groups in NCT07371286
Study groupRoleWhat they receive
Experimental arm taking food bite-sized pieces containing 16 g of dietary fiber (pectin and inulin)Experimentalgroup receiving 16 fiber-enriched bite-sized pieces (16 g of fiber in total: 8 g of pectin and 8 g of inulin)
Receives: Dietary Supplement: Administration of fibers as a dietary supplement
Control arm that will not consume the bite-sized piecesNo interventionPatients in this arm will not consume the bite-sized pieces and will follow the usual care protocol

What is being measured

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

  1. 50% reduction in plasma levels of circulating sCD14 (a surrogate marker of intestinal permeability and bacterial translocation), measured by enzyme-linked immunosorbent assay (ELISA).

    Measured: From day 0 to day 28

Secondary outcomes (26)
  1. Markers of intestinal integrity (intestinal permeability and bacterial translocation) assessed by plasma measurements of lipopolysaccharide (LPS).

    Measured: From day 0 to day 28

  2. Markers of intestinal integrity (intestinal permeability and bacterial translocation) assessed by plasma measurements of lipopolysaccharide binding protein (LPB)

    Measured: From day 0 to day 28

  3. Markers of intestinal integrity (intestinal permeability and bacterial translocation) assessed by plasma measurements of flagellin.

    Measured: From day 0 to day 28

  4. Markers of intestinal integrity (intestinal permeability and bacterial translocation) assessed by plasma measurements of faecal albumin.

    Measured: From day 0 to day 28

  5. Markers of intestinal integrity (intestinal permeability and bacterial translocation) assessed by plasma measurements of zonulin.

    Measured: From day 0 to day 28

  6. Markers of macrophage and neutrophil activation assessed by plasma assays of sCD163.

    Measured: From day 0 to day 28

  7. Markers of macrophage and neutrophil activation assessed by plasma assays of sCD206.

    Measured: From day 0 to day 28

  8. Markers of macrophage and neutrophil activation assessed by plasma assays of HMGB1.

    Measured: From day 0 to day 28

  9. Markers of macrophage and neutrophil activation assessed by plasma assays of osteopontin.

    Measured: From day 0 to day 28

  10. Evolution of the microbiome profile using 16s DNA sequencing

    Measured: From day 0 to day 28

  11. Plasma levels of pro-inflammatory cytokines

    (CRP, ferritin, transferrin, TNF-α, IL-1β, IL-6, IL-8)

    Measured: From day 0 to day 28

  12. Changes in biological and behavioural markers of alcohol consumption measured by plasma levels of carbohydrate-deficient transferrin (CDT)

    Measured: From day 0 to day 28

  13. Changes in biological and behavioural markers of alcohol consumption measured by plasma levels of gamma glutamyltransferase (GGT).

    Measured: From day 0 to day 28

  14. Changes in biological and behavioural markers of alcohol consumption measured by plasma levels of mean corpuscular volume (MCV).

    Measured: From day 0 to day 28

  15. Changes in biological and behavioural markers of alcohol consumption measured by the abstinence rate assessed using the Alcohol Timeline Followback (TLFB) method.

    Measured: From day 0 to day 28

  16. Changes in biological and behavioural markers of alcohol consumption measured by changes in craving intensity assessed by the OCDS (Obsessive-Compulsive Drinking Scale) craving score.

    Measured: From day 0 to day 28

  17. Changes in biological and behavioural markers of alcohol consumption measured by changes in anxiety intensity as assessed by the Hamilton Anxiety Rating Scale (HARS).

    Measured: From day 0 to day 28

  18. Changes in biological and behavioural markers of alcohol consumption measured by changes in impulsivity assessed using the Urgency Premeditation Perseverance Sensation (UPPS) impulsive behaviour scale.

    Measured: From day 0 to day 28

  19. Changes in biological and behavioural markers of alcohol consumption measured by changes in the amount of alcohol consumed as assessed by the TLFB method.

    Measured: From day 0 to day 28

  20. Changes in biological and behavioural markers of alcohol consumption measured by changes in biological markers of liver function (transaminases, alkaline phosphatase, bilirubin).

    Measured: From day 0 to day 28

  21. Changes in biological and behavioural markers of alcohol consumption measured by progression of liver fibrosis and steatosis using non-invasive tests, assessed by liver elasticity.

    Measured: From day 0 to day 28

  22. Changes in biological and behavioural markers of alcohol consumption measured by progression of liver fibrosis and steatosis using non-invasive tests, assessed by controlled attenuation parameter (CAP).

    Measured: From day 0 to day 28

  23. Changes in biological and behavioural markers of alcohol consumption measured by progression of liver fibrosis and steatosis using non-invasive tests, assessed by biological fibrosis score.

    Measured: From day 0 to day 28

  24. Changes in biological and behavioural markers of alcohol consumption measured by quality of life assessed by the 9-point Alcohol Dependence Quality of Life Scale (AlQoL9).

    Measured: From day 0 to day 28

  25. Changes in biological and behavioural markers of alcohol consumption measured by changes in dietary behaviour assessed by the Food Frequency Questionnaire (FFQ).

    Measured: From day 0 to day 28

  26. Changes in biological and behavioural markers of alcohol consumption measured by the collection of daily tolerance of adverse effects at each visit.

    Gastrointestinal symptoms will be measured using a French version of a self-reported questionnaire initially developed by gastroenterologists to assess symptoms of irritable bowel syndrome.

    Measured: From day 0 to day 35

Timeline

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

  1. First posted27 Jan 2026
  2. Study startFeb 2026 (estimated)
  3. Primary completionFeb 2026 (estimated)
  4. Study completionFeb 2026 (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
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
138 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07371286
Sponsor's protocol ID
2025-A00575-44/1
Acronym
FIB-ALC
Status last verified
Oct 2025
First submitted
24 Nov 2025
Last updated
27 Jan 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 Administration of fibers as a dietary supplement in people with Alcohol Use Disorder and Supplementation, run by Assistance Publique - Hôpitaux de Paris.

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 7 inclusion and 14 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 27 Jan 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. 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?

Contact Dragos CIOCAN, MCU-PH (+33 1 45 37 43 69, dragosmarius.ciocan@aphp.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

50% reduction in plasma levels of circulating sCD14 (a surrogate marker of intestinal permeability and bacterial translocation), measured by enzyme-linked immunosorbent assay (ELISA). (time frame: From day 0 to day 28). 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 27 Jan 2026.

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