Phase-III Clinical Studies on Poly Herbal Anti-Diabetic Formulation

December 1, 2025 updated by: Abdul Bari, Hamdard University

Pre-Clinical & Clinical Studies on Poly Herbal Anti-Diabetic Formulation

The goal of this clinical trial to learn the clinical efficacy and safety of standardized polyherbal capsule weighing around 500 mg, containing Syzygium cumini, Momordica charantia, Wrightia tinctoria, and Gymnema sylvestre in equal proportions for controlling Diabetic hyperglycemia towards a normal glycemic control. The main question that aims to search is

  1. Does the herbal combination formula effective to lower the high blood glucose levels in Type2 diabetics
  2. Is the herbal combination therapy is safe for human use

  3. Does this treatment plan reduces the blood sugar level comparative to Metformin 500 mg TID The trial is also comparing its efficacy in comparison to a standard anti diabetic drug Metformin In the study wing, the volunteer diabetic patients will take the herbal capsule 500mg TID and in the control group the volunteer patients will take Metformin 500 mg TID.

    • The recruited patients will continue the assigned therapy for at least six months
    • They visit the clinical trial OPDs fortnightly
    • They will record their fasting blood glucose with the glucometer at least two to three times a week and get the basal tests done in three-month time

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not 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

Preclinical evaluation studies including stability, dissolution and anti-microbial testing were performed. The formulation was also subjected to gas chromatography-mass spectrometry (GCMS). The powdered formulation was analyzed for LD-50 followed by two-center, unblinded, non-randomized controlled clinical trial with convenient sampling was conducted over 24 weeks in 500 adults with T2DM (HbA1c 7.5-10%). Participants were assigned to receive either polyherbal capsules (~500 mg three times daily, n = 250) or metformin (500 mg three times daily, n = 250). Primary outcome was HbA1c reduction; secondary outcomes included fasting/postprandial glucose, urinary protein, urinary glucose, lipid profile, body weight, and safety. Statistical analyses were performed using two-way ANOVA and unpaired t-tests.

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 (Actual)

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.
500

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.
  • Phase 3

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

  • Pakistan
    • Sindh
      • Karachi, Sindh, Pakistan, 74700
        • Mehboob Faryal Diagnostic Center

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
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients having Type II Diabetes Mellitus.
  • Patients agree willingly to use study medicine throughout the study
  • Patients having raised FBS above 120 mg/dl and HbA1C level 6.7 or above.
  • Patients over 30 years of age.
  • Patients of both genders will be included in the study.

Exclusion Criteria:

  • Patients who do not agree willingly to participate in research.

    • Patients having history of any chronic organ failure.
    • Patients having history of any amputation.
    • Patients having history of treated or diagnosed cancer of any organ.
    • Pregnant and lactating mothers.
    • Patients who are having brittle Diabetes
    • Known under treatment cases of psychiatric disorders

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: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

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.
Active Comparator: Metformin - control are of the study
Metformin is standardized hypoglycemic agent with global accepted efficacy & safety
Drug: Metformin
Standard oral hypoglycemic comparator
Other Names:
  • Glucophage
Experimental: DIAB-PHC1 - Treatment arm of the study
The investigational formulation consisted of Syzygium cumini, Momordica charantia, Wrightia tinctoria and Gymnema sylvestre. Raw plant materials were procured from local herbal markets and authenticated shade dried and powdered. The powder was capsulated with avverage weight of 500 mg /capsule. Capsules were given TID with meals to the patients
Drug: DIAB-PHC1

a novel poly-herbal hard gelatin capsule formulation comprising Syzygium cumini, Momordica charantia, Wrightia tinctoria, and Gymnema sylvestre in a scientifically optimized ratio. Although each of these herbs is traditionally recognized for its individual anti-diabetic activity, their combination in a standardized dosage form has not previously been reported.

The study further strengthens its novelty by conducting comprehensive pre-clinical safety evaluations, confirming the absence of toxicity before proceeding to controlled clinical investigations.

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
glycated hemoglobin (HbA1c)
Time Frame: From two weeks to six months time period
The primary objective is to assess improvements in glycated hemoglobin (HbA1c) and fasting/ post-prandial plasma glucose.
From two weeks to six months time period

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
Urinary Proteins
Time Frame: At least Six months
The secondary objectives are to evaluate reduction in the amount of proteins in urine
At least Six months
Urinary Glucose
Time Frame: 6 months
regular check for the urinary glucose levels as a parameter for improved glycemic control
6 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.
Hamdard University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Jinnah Postgraduate Medical Centre

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.
  • Study Director: Mehboob Alam, PhD, Department of Pharmacology, Institute of Basic Medical Sciences, JPMC

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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)

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.
March 9, 2024

Primary Completion (Actual)

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.
August 1, 2025

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.
May 20, 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).
December 1, 2025

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.
December 1, 2025

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.
December 12, 2025

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.
December 12, 2025

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.
December 1, 2025

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.
December 1, 2025

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.
  • DIAB-PHC1

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

to keep the privacy & anonymity of the individual participant of the study, as committed at the time of induction

Study Data/Documents

  1. Main reference
    Information comments: it is the main reference used to identify definitions of the Diabetes & its complications

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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