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Trial · Interventional

CompletedPhase 4Results postedRegistry data

Contribution of Pancreatic αcells Function to Blood Glucose Regulation in Chinese Type 2 Diabetics- the Effect of Sitagliptin on Glucagon Secretion, Insulin Secretion and Insulin Resistance in Chinese Type 2 Diabetics

NCTNCT01610154 (opens ClinicalTrials.gov in a new tab)Other idCIFuwaiHospital-MISP39889

This trial does not test a peptide that PepBank tracks.

  • Measures Glucagon, does not give it. It appears in an outcome measure.

Overview

Status
Completed
Phase
Phase 4
Enrollment
85 participants (actual)
Sponsor
Guangwei Li · Other
Design
Allocation not applicable · Open label (no masking)
Countries
1 country

China

Start
Oct 2012
Primary completion
Aug 2014
Completion
Jun 2015
First posted
1 Jun 2012 (estimated)
Last update posted
11 May 2017
Conditions
Insulin Secretion · Insulin Resistance

Timeline

1 trial · 1 completed · 1 with posted results

  • Completed
  • Ongoing
  • Not yet recruiting
  • Stopped
  • Estimated dates (est.)
  • Results posted
20122013201420152016
  1. Ph 4

    Contribution of Pancreatic αcells Function to Blood Glucose Regulation in Chinese Type 2 Diabetics- the Effect of Sitagliptin on Glucagon Secretion, Insulin Secretion and Insulin Resistance in Chinese Type 2 Diabetics

    NCT01610154

    Oct 2012 to Jun 2015

Registry summary

Text and fields below are the sponsor's entries at ClinicalTrials.gov, shown as posted.

1. The purpose of this study is to determine whether Sitagliptin therapy suppress glucagon release and improve glucose control in Chinese type 2 diabetic. 2. There are different effects of Sitagliptin therapy on blood glucose regulation, pancreatic alpha \& beta cell function are different in lean (BMI\<25) and overweight (BMI\>25) Chinese type 2 diabetics. 3. The purpose of this study is to determine whether glucagon release may contribute over 30% to the hyperglycemia in Chinese type 2 diabetics.

Interventions

  • SitagliptinDrug

Arms1

  • Experimental

    Sitagliptin treatment

Primary outcomes1

Outcomes the sponsor listed as primary.

  1. Change From Baseline in Hemoglobin A1c (HbA1c)

    Time frame · Baseline to 12 weeks

Secondary outcomes(8)
  1. Change From Baseline in Fasting Plasma Glucose (FPG)

    Time frame · Baseline to 12 weeks

  2. Change From Baseline in Postprandial Plasma Glucose (PPG)

    Time frame · Baseline to 12 weeks

  3. Change From Baseline in Insulin Sensitivity

    Time frame · Baseline to 12 weeks

    Registry description

    The insulin sensitivity was detected by evaluating the glucose infusion rate (GIR) with euglycemic hyperinsulinemic clamp test.

  4. Change From Baseline in Insulin Sensitivity in Patients With Different BMI

    Time frame · Baseline to 12 weeks

    Registry description

    The insulin sensitivity was detected by evaluating the glucose infusion rate (GIR) with euglycemic hyperinsulinemic clamp test.

  5. Change From Baseline in Pancreatic β Cell Function

    Time frame · Baseline to 12 weeks

    Registry description

    The early phase insulin response (△I30/△G30) was adopted to determine β cell function.

  6. Change From Baseline in Pancreatic β Cell Function in Patients With Different BMI

    Time frame · Baseline to 12 weeks

    Registry description

    The early phase insulin response (△I30/△G30) was adopted to determine β cell function.

  7. Change From Baseline in Pancreatic α Cell Function

    Time frame · Baseline to 12 weeks

    Registry description

    The glucagon-AUC was adopted to show pancreatic α cell function.

  8. Change From Baseline in Pancreatic α Cell Function in Patients With Different BMI

    Time frame · Baseline to 12 weeks

    Registry description

    The glucagon-AUC was adopted to show pancreatic α cell function.

Posted results

Values are shown as posted at ClinicalTrials.gov, with their units. PepBank has not converted, pooled or compared them.

Primary outcome results

Primary outcomeMean· Baseline to 12 weeks

Change From Baseline in Hemoglobin A1c (HbA1c)

GroupValue (percentage)Spread
Sitagliptin-1.080.13
Secondary and other outcome results(7)
Secondary outcomeMean· Baseline to 12 weeks

Change From Baseline in Fasting Plasma Glucose (FPG)

GroupValue (mmol/L)Spread
Sitagliptin-1.990.18
Secondary outcomeMean· Baseline to 12 weeks

Change From Baseline in Postprandial Plasma Glucose (PPG)

GroupValue (mmol/L)Spread
Sitagliptin-4.690.41
Secondary outcomeMedian· Baseline to 12 weeks

Change From Baseline in Insulin Sensitivity

GroupValue (mg/kg/min)
Sitagliptin0.64
Secondary outcomeMedian· Baseline to 12 weeks

Change From Baseline in Insulin Sensitivity in Patients With Different BMI

GroupValue (mg/kg/min)
Non-obese Group0.42
Obese Group0.72
Secondary outcomeMedian· Baseline to 12 weeks

Change From Baseline in Pancreatic β Cell Function

GroupValue (μu/ml/mmol)
Sitagliptin2.53
Secondary outcomeMedian· Baseline to 12 weeks

Change From Baseline in Pancreatic β Cell Function in Patients With Different BMI

GroupValue (μu/ml/mmol)
Non-obese Group2.30
Obese Group2.85
Secondary outcomeMean· Baseline to 12 weeks

Change From Baseline in Pancreatic α Cell Function

GroupValue (min∙pg/ml)Spread
Sitagliptin-27.832.3

Adverse events, as posted

Adverse events as posted: participants affected out of participants at risk, by group
GroupDeathsSerious eventsOther events
Sitagliptin TreatmentSitagliptin 100 mg QD–0 / 848 / 84

Each cell reads participants affected / participants at risk, as the registry posted them.

Registry data comes from ClinicalTrials.gov. Study results come from studies, not from the registry. How PepBank works

Studies0

Studies that cite this trial.

No study cites this trial.

Eligibility

Who could join, as posted.

Sex
All
Age
from 25 Years up to 60 Years
Healthy volunteers
Not accepted
Inclusion and exclusion criteria, as posted
Inclusion Criteria: 1. Age: 25\~60 years 2. Duration of disease \< 3 years,no drug treatment for diabetes 3. Newly diagnosed type 2 diabetic patients (fasting plasma glucose \> 7.0mmol/L or/and 2h postprandial blood glucose\>11.1mmol/L WHO 1999) 4. Fasting plasma glucose \< 10 mmol/L Exclusion Criteria: 1. Type 1 diabetes 2. DKA, infection and other stress status 3. Autoimmune disease 4. Hepatic and renal diseases

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