NCT02613897

Brief Summary

This is a 16-week, single center, randomized, double-blind, active-controlled, parallel-group, Phase 3b efficacy and safety study of simultaneous administration of saxagliptin 5 mg plus dapagliflozin 10 mg once daily (QD) compared with dapagliflozin plus placebo for saxagliptin, and placebo for saxagliptin plus placebo for dapagliflozin in patients with Type 2 diabetes who have inadequate glycemic control on metformin or metformin/sulfonylurea.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
56

participants targeted

Target at P25-P50 for not_applicable diabetes-mellitus-type-2

Timeline
Completed

Started Jan 2016

Typical duration for not_applicable 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

November 12, 2015

Completed
13 days until next milestone

First Posted

Study publicly available on registry

November 25, 2015

Completed
1 month until next milestone

Study Start

First participant enrolled

January 1, 2016

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2018

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

August 14, 2019

Completed
Last Updated

August 14, 2019

Status Verified

June 1, 2019

Enrollment Period

2.5 years

First QC Date

November 12, 2015

Results QC Date

June 14, 2019

Last Update Submit

July 22, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in Endogenous Glucose Production (EGP)

    All subjects received a Double-Tracer Oral Glucose Tolerance Test (OGTT) with 75g of glucose containing 14C-glucose together with intravenous primed-continuous infusion of 3(3H)-glucose for 240 minutes, at baseline (prior to) and after 16 weeks of therapy. Blood and urine samples were obtained during the OGTT to determine EGP.

    Baseline and 16 weeks

Secondary Outcomes (8)

  • Change in Body Weight

    Baseline to 16 weeks

  • Change in BMI

    Change from baseline to 16 weeks

  • HBA1c

    Change from baseline to 16 weeks

  • Mean Oral Glucose Tolerance Test (OGTT)

    Change from baseline to 16 weeks

  • Change in Lipid Oxidation

    Change from baseline to 16 weeks

  • +3 more secondary outcomes

Study Arms (3)

DAPA/SAXA (dapagliflozin plus saxagliptin)

ACTIVE COMPARATOR

Dapagliflozin 10mg + Saxagliptin 5mg (plus standard of care treatment of metformin or metformin plus sulfonylurea).

Drug: SaxagliptinDrug: Dapagliflozin

DAPA (Dapagliflozin plus placebo)

ACTIVE COMPARATOR

Dapagliflozin 10mg + Placebo (plus standard of care treatment of metformin or metformin plus sulfonylurea).

Drug: Dapagliflozin

PCB (Placebo plus placebo)

PLACEBO COMPARATOR

Placebo (for dapagliflozin) + placebo (for saxagliptin) (plus standard of care treatment of metformin or metformin plus sulfonylurea).

Drug: Placebo

Interventions

Saxagliptin (Onglyza™) is approved by the US FDA as an adjunct to diet and exercise to improve glycemic control in adults with T2DM. The 5 mg dose will be used for this study as it is the dose that is routinely used in the clinic. In addition, this dose is used in the pivotal studies in the saxagliptin/dapagliflozin clinical program.

Also known as: Onglyza
DAPA/SAXA (dapagliflozin plus saxagliptin)

Dapagliflozin (Farxiga) is approved by the FDA as an adjunct to diet and exercise to improve glycemic control in adults with T2DM. Dapagliflozin (Farxiga) is also approved in the EU as an adjunct to diet and exercise to improve glycemic control in patients with T2DM for whom metformin use is considered inappropriate due to intolerance, and in combination with other glucose-lowering medicinal products when these, in combination with diet and exercise do not provide adequate glycemic control. The 10 mg dose was chosen for this study because it has been extensively studied in Phase 3 trials and has demonstrated a favorable benefit-risk profile. In addition, this dose is the most commonly used dose in most countries.

Also known as: Farxiga
DAPA (Dapagliflozin plus placebo)DAPA/SAXA (dapagliflozin plus saxagliptin)

Placebo

PCB (Placebo plus placebo)

Eligibility Criteria

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

You may qualify if:

  • Provision of informed consent prior to any study-specific procedures.
  • Is able to read, understand, and sign the Informed Consent Forms (ICFs) and, if applicable, an Authorization to Use and Disclose Protected Health Information form (consistent with Health Insurance Portability and Accountability Act of 1996 legislation), communicate with the Investigator, and understand and comply with protocol requirements, including the use of diary and glucose meter measurements.
  • Age = 18-70 years.
  • Has a diagnosis of T2DM.
  • Has HbA1c ≥7.5% and ≤11.0% obtained at Screening.
  • Treated with a stable dose of metformin ≥1000 mg/day or stable dose of metformin (≥ 1000 mg/day) plus sulfonylurea (glipizide, ≥ 5 mg/day; glyburide, ≥ 5 mg/day; glimepiride, ≥ 4 mg/day) for at least 8 weeks prior to Screening.
  • Has a BMI of 20 to 45 kg/m2 (inclusive) at Screening.
  • Is male, or is female, and meets all the following criteria:
  • Not pregnant or breastfeeding.
  • Negative pregnancy test result at Visit 1 (Screening).
  • Women of childbearing potential (WOCBP; \[including perimenopausal women who have had a menstrual period within 1 year\]) must practice and be willing to continue to practice appropriate birth control (defined as a method that results in a low failure rate, i.e., less than 1% per year, when used consistently and correctly, such as implants, injectables, hormonal contraceptives \[pills, vaginal rings, or patches\], some intrauterine contraceptive devices \[levonorgestrel-releasing or copper-T\], tubal ligation or occlusion, or a vasectomized partner) during the entire duration of the study. As applicable, all methods must be in effect prior to receiving the first dose of study medication.

You may not qualify if:

  • Target Disease Exceptions
  • Clinically diagnosed with Type I diabetes .
  • History of diabetic ketoacidosis, hyperosmolar nonketotic coma, or corticosteroid induced Type 2 diabetes.
  • Medical History and Concurrent Diseases
  • History of bariatric surgery or lap-band surgery, or either procedure is planned during the time period of the study.
  • History of any unstable endocrine, psychiatric, rapidly progressing, or unstable renal disease, or rheumatic disorder, as judged by the Investigator.
  • Patients who, in the judgment of the Investigator, may be at risk for dehydration or volume depletion that may affect the patient's safety and/or the interpretation of efficacy or safety data.
  • Has evidence of current abuse of drugs or alcohol or a history of abuse within the past 52 weeks that, in the Investigator's opinion, would cause the individual to be noncompliant.
  • Cardiovascular Conditions
  • Cardiovascular disease within 3 months of Screening (i.e., MI, cardiac surgery, revascularization, unstable angina, stroke, transient ischemic attack, or arrhythmia).
  • Presence or history of severe congestive heart failure (New York Heart Association Class III and IV \[CCNYHA 1994\]), unstable or acute congestive heart failure, and/or known left ventricular ejection fraction of ≤40%.
  • Note: Eligible patients with congestive heart failure, especially those who are on diuretic therapy, should have careful monitoring of their volume status throughout the study.
  • Kidney Conditions
  • Estimated (eGFR) \<60±5 mL/min/1.73 m2 or a measured serum creatinine of \>1.4 mg/dL for female patients and \>1.5 mg/dL for male patients. If the serum creatinine is ≤ 1.4 (female) or ≤ 1.5 (male) and the eGFR is ≥ 60±5 ml/min/1.73m2, the subject is eligible to participate in the study.
  • Congenital renal glucosuria. Hepatic Conditions
  • +25 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Texas Health Science Center at San Antonio

San Antonio, Texas, 78229, United States

Location

Related Publications (35)

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  • Qin Y, Adams J, Solis-Herrera C, Triplitt C, DeFronzo R, Cersosimo E. Clinical Parameters, Fuel Oxidation, and Glucose Kinetics in Patients With Type 2 Diabetes Treated With Dapagliflozin Plus Saxagliptin. Diabetes Care. 2020 Oct;43(10):2519-2527. doi: 10.2337/dc19-1993. Epub 2020 Jul 21.

MeSH Terms

Conditions

Diabetes Mellitus, Type 2

Interventions

saxagliptindapagliflozin

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Results Point of Contact

Title
Yuejuan Qin
Organization
University of Texas Health San Antonio

Study Officials

  • Eugenio Cersosimo, MD

    The University of Texas Health Science Center at San Antonio

    PRINCIPAL INVESTIGATOR
  • Ralph A DeFronzo, MD

    The University of Texas Health Science Center at San Antonio

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 12, 2015

First Posted

November 25, 2015

Study Start

January 1, 2016

Primary Completion

June 30, 2018

Study Completion

June 30, 2018

Last Updated

August 14, 2019

Results First Posted

August 14, 2019

Record last verified: 2019-06

Locations