Effects of Oral Sodium Butyrate Supplementation on Body Weight Reduction in Overweight/Obese Individuals With and Without Type 2 Diabetes

NCT ID: NCT07252609

Last Updated: 2025-11-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

46 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-11-13

Study Completion Date

2025-08-08

Brief Summary

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The goal of this clinical trial (randomized controlled trial with parallel group design) is to evaluate the effects of oral sodium butyrate supplementation for 12 weeks, compared with placebo, in addition to a moderately hypocaloric diet, on body weight, body composition, glucose metabolism, and lipid metabolism in overweight or obese individuals with and without type 2 diabetes.

The main questions this study aims to answer are:

* Does oral sodium butyrate improve body weight reduction and body composition compared with placebo?
* Does it improve glucose and lipid metabolism in participants with and without type 2 diabetes?

The study includes 46 men and women aged 30-70 years, with overweight or obesity (BMI 25-39.9 kg/m²) and HbA1c ≤ 7.0%. Participants are randomly assigned to receive either oral sodium butyrate or placebo, both combined with a moderately hypocaloric diet for 12 weeks.

Participants:

* Take sodium butyrate tablets (625 mg three times daily; total 1,875 mg/day) or placebo tablets with meals
* Follow a personalized, balanced hypocaloric diet monitored by a dietitian
* Attend clinic visits every two weeks for anthropometric measurements and dietary adherence checks
* Complete a 7-day food diary and a gastrointestinal symptom questionnaire (PAGI-SYM)
* Undergo fasting blood tests, body composition analysis (bioelectrical impedance), and continuous glucose monitoring (CGM) at baseline and after 12 weeks

Detailed Description

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Conditions

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Obesity Type 2 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The experimental study will be conducted according to a randomized parallel-group design, involving 46 obese individuals, with and without type 2 diabetes. The experimental phase will be preceded by a 3-week observation period (run-in), during which participants will stabilize their habitual diet. At the end of this period, participants will be randomly assigned to one of two 12-week treatments:

1. oral supplementation with sodium butyrate (NaBut) + hypocaloric diet, or
2. oral supplementation with placebo + hypocaloric diet.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Oral Sodium Butyrate Supplementation (NaBut)

Participants receive oral sodium butyrate (NaBut) in combination with a moderately hypocaloric diet. Sodium butyrate is administered in tablet form (Butir Bioma®, UNIFARCO S.p.A.), with each tablet containing 625 mg of sodium butyrate. Participants take one tablet three times daily-at breakfast, lunch, and dinner-for a total daily dose of 1,875 mg.

Group Type EXPERIMENTAL

Sodium Butyrate (NaBut)

Intervention Type DIETARY_SUPPLEMENT

Participants receive oral sodium butyrate (NaBut) in combination with a moderately hypocaloric diet for 12 weeks.

Sodium butyrate is administered as 625 mg tablets (Butir Bioma®, UNIFARCO S.p.A.), taken three times daily with meals (breakfast, lunch, and dinner), for a total daily dose of 1,875 mg.

The hypocaloric diet is individualized based on basal metabolic rate (measured by indirect calorimetry) and physical activity level, with a 300-500 kcal/day energy reduction.

Placebo

Participants receive placebo tablets in combination with the same moderately hypocaloric diet as the experimental group (NaBut arm).

The placebo tablets are identical in appearance, weight, shape, color, and taste to the sodium butyrate tablets but do not contain the active ingredient (sodium butyrate).

Participants take one placebo tablet three times daily-at breakfast, lunch, and dinner-for a total of three tablets per day.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Participants receive placebo tablets identical in appearance, weight, shape, color, smell, and taste to the sodium butyrate tablets but without the active ingredient, combined with the same moderately hypocaloric diet as the experimental group.

Tablets are taken three times daily with meals (breakfast, lunch, and dinner), for a total of three tablets per day.

The hypocaloric diet follows the same composition and energy restriction as described for the sodium butyrate intervention.

Interventions

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Sodium Butyrate (NaBut)

Participants receive oral sodium butyrate (NaBut) in combination with a moderately hypocaloric diet for 12 weeks.

Sodium butyrate is administered as 625 mg tablets (Butir Bioma®, UNIFARCO S.p.A.), taken three times daily with meals (breakfast, lunch, and dinner), for a total daily dose of 1,875 mg.

The hypocaloric diet is individualized based on basal metabolic rate (measured by indirect calorimetry) and physical activity level, with a 300-500 kcal/day energy reduction.

Intervention Type DIETARY_SUPPLEMENT

Placebo

Participants receive placebo tablets identical in appearance, weight, shape, color, smell, and taste to the sodium butyrate tablets but without the active ingredient, combined with the same moderately hypocaloric diet as the experimental group.

Tablets are taken three times daily with meals (breakfast, lunch, and dinner), for a total of three tablets per day.

The hypocaloric diet follows the same composition and energy restriction as described for the sodium butyrate intervention.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Men and women with overweight or obesity (Body Mass Index \[BMI\] between 25.0 and 39.9 kg/m²), with or without type 2 diabetes Age between 30 and 70 years HbA1c ≤ 7.5%

Exclusion Criteria

* Cardiovascular events (myocardial infarction and/or stroke) within the previous 6 months
* Renal insufficiency (serum creatinine \> 1.5 mg/dL) or hepatic impairment (ALT or AST levels more than twice the upper limit of normal)
* Anemia (hemoglobin \< 12 g/dL)
* Insulin therapy or use of antihyperglycemic drugs other than metformin
* Use of antibiotics, probiotics, or prebiotics within the previous 3 months
* Habitual intense physical activity
* Pregnancy or breastfeeding
Minimum Eligible Age

30 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Federico II University

OTHER

Sponsor Role lead

Responsible Party

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Giuseppina Costabile

Senior Researcher

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Lutgarda Bozzetto, Full Professor

Role: PRINCIPAL_INVESTIGATOR

Federico II University

Locations

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Federico II University

Napoli, , Italy

Site Status

Countries

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Italy

Other Identifiers

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44/2024

Identifier Type: -

Identifier Source: org_study_id

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