The Effect of OptiFibre Dietary Fiber on Carbohydrate Metabolism and Intestinal Microbiota Metabolism in Patients With Type 2 Diabetes Mellitus

May 21, 2026 updated by: Demidova Tatiana Yulievna, Pirogov Russian National Research Medical University

Prospective-retrospective Observational Minimal Intervention Study "The Effect of OptiFibre Dietary Fiber on Carbohydrate Metabolism and Intestinal Microbiota Metabolism in Patients With Type 2 Diabetes Mellitus"

The goal of this clinical trial is to to study the effect of Optifiber PHGG on carbohydrate metabolism in patients with type 2 diabetes mellitus. The main questions it aims to answer are:

  1. To study in detail the effect of Optifiber HCTK on carbohydrate metabolism in patients with type 2 diabetes mellitus.
  2. To study the effect of Optifiber HCTK on the lipid profile of patients with type 2 diabetes mellitus.
  3. To study the effect of Optifiber HCTK on the metabolites of the intestinal microbiota in patients with type 2 diabetes mellitus.
  4. To study the effect of Optifiber HCTK on weight loss and waist circumference reduction in patients with type 2 diabetes mellitus.

The observational study is planned to include approximately 80 patients diagnosed with type 2 diabetes mellitus, with 40 patients divided into the main and control groups. In the control group, the necessary information will be collected retrospectively using archived patient data. In the main (study) group, data will be collected prospectively.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

80

Phase

  • 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 Locations

  • Russia
      • Moscow, Russia
        • State clinical hospital named after V.P. Demikhov

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

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Type 2 diabetes mellitus;
  • The duration of the disease is less than 5 years;
  • Age from 45 to 60 years;
  • HbA1c up to 7.5%;
  • Body mass index from 27 to 35 kg/m2;
  • Patients who were assigned flash monitoring to control carbohydrate metabolism and complex therapy as part of routine clinical practice;
  • Voluntary informed consent to participate in the study.

Exclusion Criteria:

  • Use of antidiabetic drugs other than metformin, DPP-4 inhibitors or SGLT2 inhibitors
  • Intestinal diseases (ulcerative colitis, Crohn's disease, etc.)
  • Pregnancy
  • AIDS/HIV
  • The use of other dietary fibers.
  • Participation in another clinical trial within the last 30 days or simultaneous participation in another clinical trial.

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: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Control
Experimental: OptiFibre
Dietary supplement: Nestle Optifibre
The main (study) group will include patients who are additionally prescribed dietary fiber supplements Optifiber (regimen of use from 1 to 3 days - 1 sachet per day (5 g) - lunch, from 4 to 6 days - 2 sachets per day (10 g) - lunch + dinner, from 7 to 90 ± 2 days - 3 sachets per day (15 g))

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change from baseline in HbA1c in OptiFibre group in comparison to HbA1c control group in 3 months
Time Frame: 84 days
84 days

Collaborators and Investigators

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

Sponsor

Pirogov Russian National Research Medical University

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 (Actual)

June 1, 2023

Primary Completion (Actual)

March 30, 2024

Study Completion (Actual)

September 30, 2024

Study Registration Dates

First Submitted

May 15, 2026

First Submitted That Met QC Criteria

May 21, 2026

First Posted (Actual)

May 27, 2026

Study Record Updates

Last Update Posted (Actual)

May 27, 2026

Last Update Submitted That Met QC Criteria

May 21, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • v.1.0(29.05.2023)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

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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