ClinicalTrials.gg
RecruitingNCT07591012ButymixxUpdated May 15, 2026

Sodium Butyrate and Kluyveromyces Marxianus Supplementation in Inflammatory Bowel Disease

An interventional study of Butyrate in Ulcerative Colitis (Disorder), sponsored by University of Padova. Recruiting at 1 site in Italy. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-05-15.

Sponsored by University of Padova · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 209 studies in Colitis, Ulcerative with a site in Italy — 48 open to participants now, 77 under way, 27 of them phase 3. Colitis, Ulcerative · Italy.

Planned enrollment
152nd of 175
40 · median 182
Started
2026
with 16 others
No phase
24 of 209
11 open now
Primary completion
2026-12
later than 30 of 76 live
Registered
197th of 209
by date

Among the 209 studies in Colitis, Ulcerative with a site in Italy, this one is the 152nd largest by planned enrollment of the 175 interventional ones that give a count, is one of 17 that started in 2026, is one of 24 with no phase, reaches primary completion later than 30 of the 76 other live ones, and was the 197th registered.

Colitis, Ulcerative

1,853 studies on the registry are indexed under Colitis, Ulcerative; 472 are open to participants now.

Browse Colitis, Ulcerative studies →

Open to participants now

48 of the 209 studies in Colitis, Ulcerative with a site in Italy are open now. Recruiting first, the newest first:

42 more — sign in →

All 48 open studies →

A study can be open while its sites in Italy have not opened yet or have stopped. Only those recruiting at a site in Italy →

Who these studies take

Of the 305 Colitis, Ulcerative studies recruiting now, 134 (44%) set no upper age limit and 134 (44%) stop at 75 or younger; 71 take children under 18; 40 take healthy volunteers.

This study: 18 Years to 75 Years · all sexes · no healthy volunteers.

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02

Study summary

The goal of this clinical trial is to learn if a dietary supplement called ButyMixx can help people with ulcerative colitis in remission feel better and keep their intestines less inflamed.

ButyMixx contains:

  • Sodium butyrate, a substance normally produced by our gut microbiota that helps protect the intestinal lining and reduce inflammation.
  • A "beneficial" yeast (Kluyveromyces marxianus), similar to probiotics, which may support the balance of the intestinal microbiota.

It will also learn about the safety of dietary supplement. The main questions it aims to answer are:

  • Does ButyMixx after 2 months of supplementation

    • Symptoms improve,
    • Quality of life improves,
    • Intestinal inflammation decreases ,
    • The gut microbiota becomes more "balanced"
  • What medical problems do participants have when taking ButyMixx ?

Participants will:

  • Take 2 sachets of ButyMixx per day for 8 weeks
  • Before starting and at the end of the 8 weeks:

    • Provide a stool sample
    • Complete a quality-of-life questionnaire
    • Be assessed by a doctor using a symptom score
Read the detailed description

ButyMixx Study A novel natural supportive strategy for Ulcerative Colitis in remission What is ulcerative colitis? Ulcerative colitis (UC) is a chronic inflammatory bowel disease characterized by recurrent inflammation of the colonic mucosa, leading to symptoms such as diarrhea, rectal bleeding, abdominal pain, and fatigue.

Even during clinical remission, when symptoms are minimal or absent, the intestinal mucosa often remains fragile and susceptible to new inflammatory flares.

For this reason, current research is increasingly focused not only on treating acute disease activity, but also on identifying strategies able to maintain mucosal health over time, improve quality of life, and reduce the risk of relapse.

The role of the gut microbiota

The human gut hosts a complex community of microorganisms, known as the gut microbiota, which plays a crucial role in:

  • digestion and nutrient metabolism
  • protection against pathogenic microorganisms
  • regulation of immune responses
  • maintenance of intestinal barrier integrity In patients with UC, this microbial ecosystem is frequently altered (a condition known as dysbiosis), even during remission. Restoring a balanced microbiota is therefore considered a key therapeutic target.

What is ButyMixx?

ButyMixx is a dietary supplement combining two natural components:

  1. Sodium butyrate

    Butyrate is a short-chain fatty acid normally produced by bacterial fermentation of dietary fibers. It has several well-documented physiological functions:

    • it is the main energy source for colonocytes
    • supports epithelial repair and regeneration
    • exerts anti-inflammatory effects
    • contributes to the maintenance of intestinal barrier integrity In patients with UC, endogenous butyrate production is often reduced.
  2. Kluyveromyces marxianus

This is a probiotic yeast, commonly found in kefir, whose probiotic potential has been investigated in preclinical models. Studies have shown that K. marxianus:

  • survives gastrointestinal transit efficiently
  • interacts with the host immune system
  • reduces pro-inflammatory signaling
  • supports a more balanced intestinal microbiota It is recognized as safe by both European and US regulatory authorities.

Rationale of the study

The study was designed to investigate whether the combination of butyrate and probiotic yeast may represent a natural adjunctive strategy to standard pharmacological therapy (e.g., mesalamine and/or biologics), with the aim of:

  • maintaining lower levels of intestinal inflammation
  • improving patients' quality of life
  • supporting gut microbiota homeostasis
  • potentially reducing the risk of disease relapse

Study population

A total of 40 patients will be enrolled, meeting the following criteria:

  • age between 18 and 75 years
  • diagnosis of ulcerative colitis in clinical remission
  • stable background medical therapy Patients with active disease, other forms of colitis, ongoing intestinal infections, pregnancy, or recent use of antibiotics/probiotics will be excluded.

Study design and procedures Study duration

  • 8 weeks Supplement administration
  • Two sachets of ButyMixx daily, taken before meals Study visits

Two visits are scheduled:

Baseline visit (T0)

  • Clinical symptom assessment
  • Quality-of-life questionnaire administration
  • Stool sample collection for:

    • fecal calprotectin (marker of intestinal inflammation)
    • gut microbiota analysis End-of-treatment visit (T1, after 8 weeks)
  • Reassessment of symptoms and quality of life
  • Repeat stool sample collection
  • Recording of any adverse events

Study outcomes

The study aims to determine whether, after two months of supplementation:

  • clinical symptoms improve
  • quality of life increases
  • intestinal inflammation decreases
  • the gut microbiota shows a more balanced profile In parallel, the safety and tolerability of the supplement will be carefully evaluated.

Why is this study important?

If proven effective and safe, ButyMixx could become:

  • a natural adjunct to pharmacological therapy
  • a tool to support long-term intestinal health
  • a strategy to reduce disease burden and improve daily well-being in patients with ulcerative colitis Contributing to a more comprehensive and preventive approach to disease management
03

Conditions studied

  • Ulcerative Colitis (Disorder)

Browse trials for

Keywords

  • Ulcerative colitis
  • Butyrate
  • Kluyveromyces marxianus
  • Yearst
04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Diagnosis of UC confirmed by clinical, endoscopic and histopathological evidence. Disease in remission phase confirmed by clinical, endoscopic and histopathological evidence.
  • Age between 18 and 75 years old
  • Ability of subject to participate fully in all aspects of this clinical trial.

Exclusion criteria

Exclusion Criteria:

  • Patients that have active UC, determined by clinical, endoscopic and histopathological evidence
  • Known diagnosis of CD( Crohn disease), indeterminate colitis, ischemic colitis, radiation colitis, diverticular disease associated with colitis or microscopic colitis
  • Positive stool culture for active C. difficile
  • Pregnant women
  • Patients under antibiotic and/or probiotic treatment within 10 days prior to Visit 1.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
40 participants (estimated)

Study arms

  • Other
    Butimixx

    single arm

    Dietary Supplement: Butyrate

Interventions

  • Dietary supplementButyrate

    Drug pages: Butyrates · Butyric Acid

    Patients will be treated with the ButyMixx , a stick pack probiotic supplement composed sodium butyrate and the yeast Kluyveromyces marxianus, as primary compounds (300 mg and 33.5 mg rispectively).Patients will be asked to take 2 stick packs per day, before meals for 8 weeks.

06

What researchers measure

Primary outcomes

  1. Assessment of the clinical effectiveness of ButyMixx

    The primary outcome is defined as the assessment of the clinical effectiveness of ButyMixx through a pre-post improvement (T0 vs T1) in at least one of the following three parameters: Partial Mayo Score (pMayo) - a clinical index measuring ulcerative colitis activity, including stool frequency, rectal bleeding, and physician's global assessment. IBDQ (Inflammatory Bowel Disease Questionnaire) - a validated questionnaire assessing disease-related quality of life. Fecal calprotectin (fCal) - an objective biomarker of intestinal inflammation. The primary outcome is therefore considered achieved if, after 8 weeks of supplementation, a clinically and statistically significant improvement is observed in at least one of these three indicators

    Time frame: 8 weeks

Secondary outcomes

  1. Safety and tolerability

    The secondary outcome is represented by the assessment of the safety and tolerability of the ButyMixx supplement. Systematic recording of adverse events (AEs) and serious adverse events (SAEs) All clinical events occurring during the study period are recorded according to standardized regulatory definitions and criteria. This allows assessment of whether ButyMixx intake is associated with undesirable effects and enables estimation of their frequency, type, and severity. Exploratory analysis of the intestinal microbiota Modulation of the microbiota profile is evaluated through 16S rRNA gene sequencing, and ITS(Internal Transcribed Spacer) sequencing for bacteria and fungi, with particular attention to the presence and dynamics of yeast species. This component is not intended as an efficacy endpoint, but rather as a tool to confirm that supplementation does not induce potentially unfavorable microbiological alterations, thereby strength

    Time frame: 8 weeks

07

Study locations

1 of 1 sites recruiting
  • Edoardo Savarino
    Padova, 352121, Italy
    Recruiting
    • Edoardo Savarino · Contact
08

References and documents

Individual participant data

Plan to share: No — Individual participant data (IPD) will not be shared.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for May 2026; primary completion for Dec 2026, 7 months later.

Of 225 non-industry interventional studies with no phase under Colitis, Ulcerative, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 56. This study's planned 7 months is below that.

Counting every sponsor, half of 236 studies reached it within 34 months; a quarter within 16 and three quarters within 54.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 13, 2026
First posted
May 15, 2026
StartEst.
May 1, 2026
Primary completionEst.
Dec 31, 2026
CompletionEst.
Mar 30, 2027
Last update
May 15, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07591012
Responsible party
Savarino Edoardo Vincenzo (Professor, University of Padova) — Principal investigator
First posted
May 15, 2026
Start date
May 1, 2026 (estimated)
Primary completion
Dec 31, 2026 (estimated)
Completion
Mar 30, 2027 (estimated)
Last update
May 15, 2026

Study contacts

Edoardo V Savarino
Contact
edoardo.savarinoi@unipd.it
00390498127749
Sonia Facchin
Contact
sonia.facchin@unipd.it
Edoardo V Savarino
principal investigator · Università degli Studi di Padova, DiSCOG

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Butyrates · Butyric Acid

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