Effects of Inulin on Cardiometabolic Risk Factors in Individuals Using Glucagon-like Peptide-1 Receptor Agonists (GLP-1 RA ) Medications for Weight Loss

June 1, 2026 updated by: An Pan, Huazhong University of Science and Technology

The Effect of Inulin on Cardiometabolic Risk Factors in Individuals Using Glucagon-like Peptide-1 Receptor Agonists (GLP-1 RA) Medications for Weight Loss: a Randomized Double-blind Controlled Trial

The goal of this double-blind randomized placebo-controlled supplement study is to investigate if the supplement of inulin (prebiotics, 10 grams per day) has beneficial effects on cardiometabolic risk factors in overweight or obese individuals receiving glucagon-like peptide-1 receptor agonists (GLP-1 RA) medications for weight loss.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The goal of this double-blind randomized placebo-controlled supplement study is to investigate if the supplement of inulin (prebiotics, 10 grams per day) has beneficial effects on cardiometabolic risk factors in overweight or obese individuals receiving glucagon-like peptide-1 receptor agonists (GLP-1 RA) medications. Approximately 600 overweight or obese individuals using GLP-1 RA medications for weight loss will be enrolled. All participants will provide informed consent before randomization. Eligible individuals must be obese or be overweight with at least one body weight-related complications, and have been using GLP-1 RA medications at the time of enrollment for at least 3 months and plan to continue using them in the next 6 months. Eligible participants will be randomly assigned to inulin intervention or placebo group. Randomization will be computed within study center, age and sex groups. The intervention will last for 4 months. Questionnaire data and bio-samples will be collected before the start of intervention and at the end of the intervention. The primary outcomes are lipid levels measured in bio-samples. Data on secondary outcomes will be obtained through biomarker measurement and questionnaires.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
600

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
    • Hubei
      • Enshi, Hubei, China
        • The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture
      • Shiyan, Hubei, China
        • Sinopharm Dongfeng General Hospital
      • Wuhan, Hubei, China
        • Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
      • Wuhan, Hubei, China
      • Xiangyang, Hubei, China
        • Xiangyang No.1 People's hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion criteria:

  • Be overweight or obese (meeting any of the following criteria):

    1. Obesity: BMI >=28 kg/m²;
    2. Overweight (BMI >= 24 kg/m²) with at least one body weight-related comorbidity: obstructive sleep apnea syndrome, prediabetes, type 2 diabetes mellitus, hypertension, dyslipidemia, polycystic ovary syndrome, or non-alcoholic fatty liver disease.
  • Must have received GLP-1 RA drugs (Semaglutide, Liraglutide, Benaglutide, Tirzepatide, or Mazdutide) for weight-loss intervention for at least 3 months, and plan to continue using them for the next six months.
  • Age 18-64 years.
  • Consent to participate and sign the informed consent form.

Exclusion criteria:

  • Currently using non-GLP-1 RA medications for weight-loss, or have undergone or plan to undergo weight-loss procedures within the next 4 months;
  • Long-term user of prebiotics or probiotics (excluding fermented dairy products such as yogurt);
  • Be allergic or intolerance to inulin-type substances;
  • Have participated in in other clinical trials within the past 3 months or are currently participating in other clinical trials;
  • Plan to be pregnant within the next year, are currently pregnant, or are breastfeeding;
  • Deemed unsuitable for participation by the investigator's judgment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: inulin (prebiotics)
The intervention dose is 10 grams per day. The intervention will last for 4 months.
Dietary supplement: inulin (prebiotics)
The intervention dose is 10 grams per day. The intervention will last for 4 months.
Placebo Comparator: maltodextrin
The intake dose is 10 grams per day for 4 months.
Dietary supplement: Placebo Comparator: maltodextrin
The dose is 10 grams per day for 4 months.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
change in concentrations of blood lipid levels in millimole per liter (mmol/L).
Time Frame: From enrollment to the end of intervention at 4 months
change in total cholesterol and triglycerides levels from baseline to 4-month visit. The values will be reported in mmol/L.
From enrollment to the end of intervention at 4 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
change in frequency of gastrointestinal symptoms
Time Frame: From enrollment to the end of intervention at 4 months
change in frequency of gastrointestinal symptoms such as diarrhea and constipation baseline to 4-month visit
From enrollment to the end of intervention at 4 months
change in concentration of glycosylated Hemoglobin A1c (HbA1c) in millimoles per mole (mmol/mol)
Time Frame: From enrollment to the end of intervention at 4 months
Description: change in concentration of glycosylated Hemoglobin A1c (HbA1c) from baseline to 4-month visit. The values will be reported in mmol/mol.
From enrollment to the end of intervention at 4 months
change in level of insulin resistance
Time Frame: From enrollment to the end of intervention at 4 months
Change in HOMA-IR (homeostatic model assessment of insulin resistance) and adipo-IR (adipose tissue insulin resistance index) from baseline to 4-month visit. HOMA-IR will be calculated based on fasting glucose (mmol/L) and fasting insulin (mIU/L). Adipo-IR will be estimated using fasting insulin (mIU/L) and fasting free fatty acids (mmol/L).
From enrollment to the end of intervention at 4 months
change in body weight in kilograms (kg)
Time Frame: From enrollment to the end of intervention at 4 months
Change in body weight (kg) from baseline to 4-month visit
From enrollment to the end of intervention at 4 months
change in body fat percentage (%)
Time Frame: From enrollment to the end of intervention at 4 months
change in body fat percentage from baseline to 4-month visit. The values will be reported in percentage (%).
From enrollment to the end of intervention at 4 months
change in waist circumference in centimeters (cm)
Time Frame: From enrollment to the end of intervention at 4 months
Change in waist Circumference (cm) from baseline to the 4-month visit.
From enrollment to the end of intervention at 4 months
change in level of gut microbiota abundance
Time Frame: From enrollment to the end of intervention at 4 months
Change in gut microbiota abundance from baseline to 4-month visit
From enrollment to the end of intervention at 4 months
change in level of gut microbiota diversity
Time Frame: From enrollment to the end of intervention at 4 months
Change in gut microbiota alpha and beta diversity from baseline to 4-month visit.
From enrollment to the end of intervention at 4 months
change in estimated glomerular filtration rate (eGFR) in milliliter per minute per 1.73 square meters (mL/min/1.73 m²)
Time Frame: From enrollment to the end of intervention at 4 months
Change in estimated glomerular filtration rate (eGFR) from baseline to the 4-month visit. The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI ) (2009) method will be used to estimate eGFR value. The value is reported in milliliter per minute per 1.73 square meters (mL/min/1.73 m²).
From enrollment to the end of intervention at 4 months
change in concentrations of liver function markers in units per liter (U/L)
Time Frame: From enrollment to the end of intervention at 4 months
Change in alanine aminotransferase (ALT), aspartate aminotransferase (AST), and gamma-glutamyl transferase (GGT) from baseline to the 4-month visit. These values are reported in units per liter (U/L).
From enrollment to the end of intervention at 4 months
change in level of C-reactive protein (CRP) in milligram per liter (mg/L)
Time Frame: From enrollment to the end of intervention at 4 months
Change in C-reactive protein (CRP) from baseline to the 4-month visit. The value is reported in milligram per liter (mg/L).
From enrollment to the end of intervention at 4 months
change in blood pressure in millimeters of mercury (mmHg)
Time Frame: From enrollment to the end of intervention at 4 months
Change in systolic and diastolic blood pressure from baseline to the 4-month visit. The values are reported in millimeters of mercury (mmHg).
From enrollment to the end of intervention at 4 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Huazhong University of Science and Technology

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: An Pan, Huazhong University of Science and Technology

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 21, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 21, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 28, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 3, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 1, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Prebiotics in GLP-1 RA users

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

To protect the privacy of participants, the investigators decide not to share individual data.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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