Efficacy and Safety of Angelica Gigas N. Extract on Improvement of Hyperglycemia

August 21, 2019 updated by: Soo-Wan Chae, Chonbuk National University Hospital

A 8-week, Randomized, Double-blind, Placebo-controlled 2x2 Cross-over Design Human Trial to Evaluate the Efficacy and Safety of Angelica Gigas N. Extract on Improvement of Hyperglycemia

This study was conducted to investigate the effects of daily supplementation of Angelica gigas N. extract on improvement of Hyperglycemia .

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

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

This study was a 8 weeks, randomized, double-blind, placebo-controlled 2×2 cross-over design human trial. Twenty subjects were randomly divided into Angelica gigas N. extract or a placebo group. Fasting and postprandial glucose profiles during oral glucose tolerance test (OGTT) were assessed before and after the intervention.

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.
40

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 Locations

  • Korea, Republic of
    • Jeollabuk-do
      • Jeonju, Jeollabuk-do, Korea, Republic of, 560-822
        • Clinical Trial Center for Functional Foods; Chonbuk National University 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

20 years to 80 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age 20-80 years with fasting glucose 100-125 mg/dL or 2 hour postprandial glucose 140-199 mg/dl

Exclusion Criteria:

  • Weight less than 48 kg or weight decreased by more than 10% within past 3 months
  • Hypoglycemic agent, Obesity medicine, Lipid lowering agent within past 6 months or Blood sugar, Obesity and Lipid improvement functional foods within past 2 weeks
  • Treated with corticosteroid within past 4 weeks
  • Severe cardiovascular disease(Mvocardial infarction, Stroke, etc)
  • Renal disease(Heredity hyperlipidemia, Acute/Chronic renal failure, Nephrotic syndrome, etc)
  • Rheumatoid arthritis, Autoimmune disease
  • Cancer, Respiratory organ disease(Asthma, Chronic obstructive pulmonary disease)
  • Allergic or hypersensitive to any of the ingredients in the test products
  • History of disease that could interfere with the test products or impede their absorption
  • Under antipsychotic drugs therapy within past 2 months
  • History of alcohol or substance abuse
  • Participation in any other clinical trials within past 2 months

  • Laboratory test by show the following results

    • aspartate aminotransferase, alanine aminotransferase > Reference range upper limit treble
    • Serum Creatinine > 2.0 mg/dl
  • Pregnancy or breast feeding
  • Not Contraception(except: Surgery for female infertility)

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: CROSSOVER
  • Masking: DOUBLE

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.
PLACEBO_COMPARATOR: Placebo
Placebo for 8 weeks
Dietary supplement: Placebo
Placebo for 8 weeks
EXPERIMENTAL: Angelica gigas N. extract
capsules(2cap/d, 1,000mg/d) for 8 weeks.
Dietary supplement: Angelica gigas N. extract
capsules(2cap/d, 1,000mg/d) for 8 weeks.

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
Changes of blood glucose during OGTT (oral glucose tolerance test)
Time Frame: 8 weeks
Changes of fasting and postprandial glucose during OGTT were assessed before and after the intervention.
8 weeks

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
Changes of blood insulin during OGTT
Time Frame: 8 weeks
Changes of blood insulin during OGTT were assessed before and after the intervention.
8 weeks
Changes of Homeostatic model assessment-insulin resistance
Time Frame: 8 weeks
Changes of physiological parameter{Homeostatic model assessment-insulin resistance(mg/dl)} were assessed before and after the intervention
8 weeks
Changes of Homeostatic model assessment-beta-cell
Time Frame: 8 weeks
Changes of physiological parameter{Homeostatic model assessment-beta-cell(mg/dl)} were assessed before and after the intervention
8 weeks
Changes of HbA1c
Time Frame: 8 weeks
Changes of HbA1c(%) were assessed before and after the intervention
8 weeks
Changes of Adiponectin, Leptin
Time Frame: 8 weeks
Changes of Adiponectin and Leptin(ng/ml) were assessed before and after the intervention
8 weeks
Changes of lipid profile
Time Frame: 8 weeks
Changes of lipid profile were assessed before and after the intervention
8 weeks

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.
Chonbuk National University Hospital

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.
February 9, 2017

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.
December 7, 2017

Study Completion (ACTUAL)

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.
December 7, 2017

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).
March 9, 2017

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.
August 21, 2017

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.
August 23, 2017

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.
August 22, 2019

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.
August 21, 2019

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.
August 1, 2019

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.
  • WBP-HG-AG2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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