NCT03331289

Brief Summary

Research Design/Plan: After screening, each subject will receive 1 measurements of Endogenous Glucose Production \[EGP\] with prime-continuous Infusion of 3-3H-glucose. After completing the EGP measurement each subject will receive a Double Tracer Oral Glucose Tolerance Test \[OGTT\]. Methods: Visit 1: Screening. Medical history will be obtained, physical exam performed, and pregnancy test performed. Visit 2: Endogenous Glucose Production Measurement: The rate of EGP will be measured with 3-3H-glucose. Visit 3: Double Tracer OGTT

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
107

participants targeted

Target at P50-P75 for phase_4 diabetes-mellitus-type-2

Timeline
Completed

Started Feb 2018

Longer than P75 for phase_4 diabetes-mellitus-type-2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 31, 2017

Completed
6 days until next milestone

First Posted

Study publicly available on registry

November 6, 2017

Completed
4 months until next milestone

Study Start

First participant enrolled

February 28, 2018

Completed
4.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2022

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 4, 2022

Completed
9 months until next milestone

Results Posted

Study results publicly available

July 24, 2023

Completed
Last Updated

July 24, 2023

Status Verified

July 1, 2023

Enrollment Period

4.1 years

First QC Date

October 31, 2017

Results QC Date

April 5, 2023

Last Update Submit

July 3, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in EGP From Baseline to Post-oral Glucose Load.

    The difference in rate of EGP during the last hour of the study (from 240-300 minutes) between drug-treatment and placebo treatment studies represents the effect of drug treatment on EGP, which will be compared among the 3 acute drug treatments (exenatide; dapagliflozin; exenatide plus dapagliflozin this data includes change in EGP above baseline following dapagliflozin alone vs dapagliflozin/exenatide) with ANOVA.

    From baseline [-35 to 0min] to the last hour post-glucose load [240-300 minutes]

Study Arms (4)

Placebo

PLACEBO COMPARATOR

we will examine whether the coadministration of exenatide plus dapagliflozin will prevent the increase in EGP and result in an additive or even synergistic decrease in plasma glucose conc compared to each agent alone.

Drug: Placebo

Exenatide

ACTIVE COMPARATOR

we will examine whether the coadministration of exenatide plus dapagliflozin will prevent the increase in EGP and result in an additive or even synergistic decrease in plasma glucose conc compared to each agent alone.

Drug: Exenatide

Dapagliflozin

ACTIVE COMPARATOR

we will examine whether the coadministration of exenatide plus dapagliflozin will prevent the increase in EGP and result in an additive or even synergistic decrease in plasma glucose conc compared to each agent alone.

Drug: Dapagliflozin

Exenatide and Dapagliflozin

ACTIVE COMPARATOR

we will examine whether the coadministration of exenatide plus dapagliflozin will prevent the increase in EGP and result in an additive or even synergistic decrease in plasma glucose conc compared to each agent alone.

Drug: Exenatide and Dapagliflozin

Interventions

Placebo will be administered to 20 subjects after a 3 hour tracer equilibration period

Also known as: Placebo drug
Placebo

Exenatide will be administered to 20 subjects after a 3 hour tracer equilibration period

Also known as: Byetta, Bydureon
Exenatide

Dapagliflozin will be administered to 20 subjects after a 3 hour tracer equilibration period

Also known as: Farxiga
Dapagliflozin

Exenatide and Dapagliflozin will be administered to 20 subjects after a 3 hour tracer equilibration period

Also known as: Byetta plus Dapagliflozin
Exenatide and Dapagliflozin

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Health Status: Type 2 Diabetes Mellitus according to ADA criteria (subjects must be in good general health as determined by physical exam, medical history, blood chemistry-CBC, TSH, T4, EKG and urinalysis)
  • BMI: 21-45kg/m
  • HbA1C\>7.0% and \<10.5%
  • Medication: Drug naïve and/or on a stable dose of metformin and/or sulfonylurea (more than 3 months)

You may not qualify if:

  • Health Status: Type 1 Diabetics
  • Proliferative diabetic retinopathy
  • Plasma Creatinine greater than 1.4mg/dL in females or greater than 1.5mg/dL in males, or 24 hour urine albumin excretion greater than 300mg/dL
  • Medication: Subjects taking drugs known to affect glucose metabolism (other than metformin and sulfonylurea)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Health System Texas Diabetic Institute

San Antonio, Texas, 78207, United States

Location

Related Publications (1)

  • Alatrach M, Agyin C, Solis-Herrera C, Lavryneko O, Adams J, Gastaldelli A, Triplitt C, DeFronzo RA, Cersosimo E. Dapagliflozin Impairs the Suppression of Endogenous Glucose Production in Type 2 Diabetes Following Oral Glucose. Diabetes Care. 2022 Jun 2;45(6):1372-1380. doi: 10.2337/dc21-1798.

MeSH Terms

Conditions

Diabetes Mellitus, Type 2

Interventions

Exenatidedapagliflozin

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

PeptidesAmino Acids, Peptides, and ProteinsVenomsComplex MixturesToxins, BiologicalBiological Factors

Results Point of Contact

Title
Ralph A DeFronzo
Organization
UTexas_SanAntonio

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Model Details: Participants will be randomized to one of four groups (20 per group): i) placebo; (ii) exenatide 5 ug subcutaneously; (iii) dapagliflozin (10 mg); and (iv) dapagliflozin 10 mg plus exenatide 5 ug
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 31, 2017

First Posted

November 6, 2017

Study Start

February 28, 2018

Primary Completion

March 31, 2022

Study Completion

November 4, 2022

Last Updated

July 24, 2023

Results First Posted

July 24, 2023

Record last verified: 2023-07

Data Sharing

IPD Sharing
Will share

All collected IPD, all IPD that underlie results in a publication

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Data will be shared once study closes to enrollment and all data are analyzed and published. Informed consent documentation will be available for sharing.....
Access Criteria
Access will be available through the journal website and on request through the PI.

Locations