Comparison of Glycaemic Fluctuation and Oxidative Stress Between Two Short-term Therapies for Type 2 Diabetes (COGFOST)

August 19, 2015 updated by: Longyi Zeng, Third Affiliated Hospital, Sun Yat-Sen University
The purpose of this study is to compare the blood glucose control, glycaemic fluctuation and oxidative stress for Type 2 Diabetes between two therapies, one is glargine combined with oral drugs and the other is continuous subcutaneous insulin injection.

Study Overview

Status

Status

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

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 single-center, randomized, controled and prospective trial. Type 2 diabetic patients were randomized into 2 groups (Group A and Group B). Subjects in group A would be treated by using continuous subcutaneous insulin injection with insulin lispro, while subjects in group B would be treated by using glargine with oral drugs (metformin and gliclazide modified release tablets). After achieving the target glucose levels by two different approaches in 3-5 days, maintain the target glucose level for 3-5 days. Then a Medtronic dynamic blood glucose meter would be applied to the subjects for 72 hours. The clinical data, such as demographic information, present history, past history, personal history and so on were collected in the 1st day. In the 2nd day and the last day of the trial, the blood samples of the patient were collected for the Laboratory Measurements: Cr, uric acid, aminotransferase, lipid profiles, white blood cell count, N%, fasting plasma glucose, fasting C-peptide, insulin, HbA1c and standard meal test (0.5h-postprandial and 2h-postprandial blood glucose levels, C peptide and insulin, et al. The parameters of b-cell function and glycemia fluctuation were calculated and then analyzed by spss 13.0.

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 (Anticipated)

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.
70

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 4

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.
  • Name: Zeng Longyi, Professor
  • Phone Number: 0086-020-85252160
  • Email: zssynfmk@163.com

Study Contact Backup

Study Locations

  • China
    • Guangdong
      • Guangzhou City, Guangdong, China, 510630
        • Recruiting
        • Endocrinology department of the Third Affiliated Hospital of Sun Yet-san University
        • Contact:
          • Zeng Longyi, Professor
          • Phone Number: 0086-020-85252160
          • Email: zssynfmk@163.com
        • Contact:
        • Principal Investigator:
          • Zeng Longyi, Professor
        • Sub-Investigator:
          • lin Shuo, Doctor

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

25 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. investigator diagnosed type 2 diabetes( 1999 WHO diagnosis criteria).
  2. diagnosed as type 2 diabetes in the first time without drug therapy, or type 2 diabetes does not accept insulin in the near 3 month and duration is shorter than 10 years
  3. Fasting plasma glucose ( FPG ) ≥11.1mmol/L or glycated haemoglobin (HbA1c )≥9%.
  4. agree to participate the study and sign the informed consent.

Exclusion Criteria:

  1. obvious failure of heart, hepatic, kidney function.
  2. severe acute or chronic complications, associated diseases. or other diseases that should not use oral hypoglycemic drug.
  3. women in pregnancy or planning to get pregnancy.

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: 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: GROUP A
using continuous subcutaneous insulin injection with insulin lispro, Humalog, initiating with 0.5-0.8 IU/kg.
Drug: insulin lispro
continuous subcutaneous insulin injection( insulin lispro, Humalog) to reduce blood glucose in a certain level
Other Names:
  • Humalog
Experimental: GROUP B
using glargine combined with oral drugs: insulin glargine, Lantus( initiating with 0.2 IU/kg) with metformin hydrochloride, Glucophage 500mg bid and gliclazide modified release tablets, Diamicron modified release(MR) tablets 60mg qd.
Drug: Insulin Glargine
long-acting insulin injection with metformin hydrochloride, Glucophage and gliclazide modified release tablets, Diamicron MR to reduce blood glucose in a certain level
Other Names:
  • Lantus

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
mean amplitude of glycemic excursions( MAGE)
Time Frame: 3-5 days after patients achieving the target glucose levels, From date of randomization, assessed up to 10 days
a Medtronic dynamic blood glucose meter was applied to the patient for 72 hours, and MAGE is calculated according to the data.
3-5 days after patients achieving the target glucose levels, From date of randomization, assessed up to 10 days

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
glycated hemoglobin A1c
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of HbA1c before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
glycated albumin
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of glycated albumin before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
fasting plasma glucose, postprandial plasma glucose (30min, 120min)
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of fasting and postprandial plasma glucose before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
Fasting C-peptide
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of Fasting C-peptide before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
Fasting insulin
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of Fasting insulin before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
Homa-β
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of Homa-β before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
insulin secretion-sensitivity index
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of insulin secretion-sensitivity index before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
disposition index
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of disposition index before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
standard deviation of glucose level
Time Frame: during three days' CGMS
standard deviation of glucose level
during three days' CGMS
area under curve (AUC) when the glucose level was higher than 7.8mmol/L
Time Frame: during three days' CGMS
AUC when the glucose level was higher than 7.8mmol/L
during three days' CGMS
area under curve (AUC) when the glucose level was lower than 3.9mmol/L
Time Frame: during three days' CGMS
AUC when the glucose level was higher than 3.9mmol/L
during three days' CGMS
thiobarbituric acid reactive substance
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of thiobarbituric acid reactive substance before and after the intervention
From date of randomization until the end of study, assessed up to 15 days
the level of blood 8-hydroxy-2-deoxyguanosine(8-OHdG)
Time Frame: From date of randomization until the end of study, assessed up to 15 days
changes of the level of blood 8-OHdG substance before and after the intervention
From date of randomization until the end of study, assessed up to 15 days

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
the incidence of hypoglycemia
Time Frame: From date of randomization until the end of study, assessed up to 15 days
the incidence of hypoglycemia, defined as blood glucose lower than 3.9mmol/L
From date of randomization until the end of study, assessed up to 15 days
the incidence of severe hypoglycemia
Time Frame: From date of randomization until the end of study, assessed up to 15 days
defined as hypoglycemia which need other people's help or blood glucose lower than 2.8mmol/L
From date of randomization until the end of study, assessed up to 15 days

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.
Third Affiliated Hospital, Sun Yat-Sen 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.
Guangdong Provincial Department 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: Zeng Longyi, professor, Endocrinology department of the Third Affiliated Hospital of Sun Yet-san University

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.

General Publications

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

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.
July 1, 2015

Primary Completion (Anticipated)

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, 2016

Study Completion (Anticipated)

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.
September 1, 2016

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).
August 10, 2015

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 15, 2015

First Posted (Estimate)

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 18, 2015

Study Record Updates

Last Update Posted (Estimate)

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 20, 2015

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 19, 2015

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, 2015

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.
  • 20130319c

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