NCT01336322

Brief Summary

The goal of the present research is to compare the effects of treatment with metformin and sitagliptin, alone or in association, in women with previous gestational diabetes to evaluate the impact of the two drugs on beta-cell function. The study results may contribute to give a rational approach for future investigations.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started May 2011

Longer than P75 for phase_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

April 13, 2011

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 15, 2011

Completed
16 days until next milestone

Study Start

First participant enrolled

May 1, 2011

Completed
6.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2017

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2018

Completed
Last Updated

March 25, 2019

Status Verified

March 1, 2019

Enrollment Period

6.6 years

First QC Date

April 13, 2011

Last Update Submit

March 21, 2019

Conditions

Keywords

beta-cell functioninsulin resistance

Outcome Measures

Primary Outcomes (1)

  • Beta-cell function

    Sitagliptin and/or metformin effects on beta-cell function (ISR = Insulin Secretion Rate) evaluated by mathematical model by Mari A. (Am J Physiology 2002)

    4 months

Secondary Outcomes (2)

  • Insulin resistance

    4 months

  • Glucose control

    4 months

Study Arms (3)

Metformin

ACTIVE COMPARATOR

Metformin 850 mg bid

Drug: Metformin

Sitagliptin

ACTIVE COMPARATOR

Sitagliptin 100 mg qd

Drug: Sitagliptin

Sitagliptin+Metformin

ACTIVE COMPARATOR

Sitagliptin 100 mg qd plus Metformin 850 mg bid

Drug: Sitagliptin + Metformin

Interventions

Metformin 850 mg bid

Also known as: Glucophage
Metformin

Sitagliptin 100 mg qd

Also known as: januvia
Sitagliptin

sitagliptin 100mg + metformin 850mg

Also known as: janumet
Sitagliptin+Metformin

Eligibility Criteria

Age18 Years - 45 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Female subjects aged ≥18 and ≤45 years
  • Caucasian race
  • History of previous gestational diabetes (in the screening) during pregnancy.
  • Female of childbearing potential must use effective contraceptive measures for at last 1 month prior to entry into the study and should continue to use the some contraceptive method during the overall study period
  • Written informed consent obtained

You may not qualify if:

  • Patients diagnosed with type 1 insulin dependent diabetes
  • Diagnosis of diabetes in the 75g OGTT performed at entry
  • BMI ≤18 or ≥50 Kg/m2
  • Chronic impaired renal function
  • Impaired liver function as shown by transaminase levels ≥ twice above the upper normal range
  • History of hypersensitivity to metformin
  • Pregnant or breast-feeding women, or women planning to become pregnant during the study
  • Failure to use adequate contraception (Women of current reproductive only)
  • Mental condition rending the subject unable to understand the nature, scope and possible consequences of the study
  • Any clinically significant major organ system disease
  • Patients with underlying concomitant medication requiring a long-term use of drugs potentially acting on glucose metabolism (e.g. corticosteroids, diuretics, beta-adrenergic drugs or others)
  • Treatment or likelihood of requiring treatment during the study period with drugs not permitted by the clinical study protocol
  • History of drug or alcohol abuse within the last 2 years or current addiction to substances of abuse
  • Any disease or condition that in the opinion of the investigator may interfere with the completion of the study
  • Subjects unlikely to comply with the protocol

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Endocrinology and Metabolism, University of Pisa

Pisa, 56124, Italy

Location

MeSH Terms

Conditions

Glucose IntoleranceInsulin Resistance

Interventions

MetforminSitagliptin PhosphateSitagliptin Phosphate, Metformin Hydrochloride Drug Combination

Condition Hierarchy (Ancestors)

HyperglycemiaGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesHyperinsulinism

Intervention Hierarchy (Ancestors)

BiguanidesGuanidinesAmidinesOrganic ChemicalsTriazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPyrazinesDrug CombinationsPharmaceutical Preparations

Study Officials

  • Stefano Del Prato, MD

    University of Pisa

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Resercher

Study Record Dates

First Submitted

April 13, 2011

First Posted

April 15, 2011

Study Start

May 1, 2011

Primary Completion

December 1, 2017

Study Completion

December 1, 2018

Last Updated

March 25, 2019

Record last verified: 2019-03

Locations