Triple Therapy in Type 2 Diabetic Patients

Overview[ - collapse ][ - ]

Purpose The treatment of type 2 diabetes mellitus often requires the use of one or more hypoglycemic agents to reach the adequate glycemic control. The aim of the study is to evaluate the effects of a triple therapy with metformin, pioglitazone and sitagliptin on glycemic variability compared to metformin monotherapy, and compared to a combination of metformin and pioglitazone. To assess glycemic variability a continuous glucose monitoring system will be used.
ConditionType 2 Diabetes Mellitus
InterventionDrug: Metformin
Drug: Pioglitazone
Drug: Sitagliptin
PhasePhase 4
SponsorUniversity of Pavia
Responsible PartyUniversity of Pavia
ClinicalTrials.gov IdentifierNCT01895569
First ReceivedJune 30, 2013
Last UpdatedJuly 3, 2013
Last verifiedJuly 2013

Tracking Information[ + expand ][ + ]

First Received DateJune 30, 2013
Last Updated DateJuly 3, 2013
Start DateJune 2013
Estimated Primary Completion DateJune 2016
Current Primary Outcome MeasuresGlycemic variability [Time Frame: 9 months] [Designated as safety issue: Yes]Glycemic variability will be assessed at the baseline, and every three months, using a continuous glucose monitoring system.
Current Secondary Outcome MeasuresGlyco-metabolic control [Time Frame: 9 months] [Designated as safety issue: Yes]Glyco-metabolic control will be assessed evaluating glycated hemoglobin, fasting plasma glucose and post-prandial glucose.

Descriptive Information[ + expand ][ + ]

Brief TitleTriple Therapy in Type 2 Diabetic Patients
Official TitleEffects on Glycemic Variability and Glyco-metabolic Control of Metformin, Pioglitazone and Sitagliptin in Type 2 Diabetic Patients
Brief Summary
The treatment of type 2 diabetes mellitus often requires the use of one or more hypoglycemic
agents to reach the adequate glycemic control. The aim of the study is to evaluate the
effects of a triple therapy with metformin, pioglitazone and sitagliptin on glycemic
variability compared to metformin monotherapy, and compared to a combination of metformin
and pioglitazone. To assess glycemic variability a continuous glucose monitoring system will
be used.
Detailed Description
In an estimated temporal space of about 3 years, 64 not well controlled, type 2 diabetic
patients will be recruited.

Patients will be instructed to take metformin 500 mg three times a day for the first three
months, then pioglitazone 15 mg twice a day will be added for further three months, and
finally sitagliptin 100 mg once a day will be added for the last three months. At the
baseline, and every three months a continuous glucose monitoring system will be performed.

At any stage of the study, if the value of glycated hemoglobin reach the desired goal
(<6.5%), participation in the study will be stopped and the patient will not be subjected to
further adjustments of hypoglycemic therapy or additional continuous monitoring glucose.

After collection of written informed consent, the following data will be collected:

- History: type of diabetes, comorbidities, current medication, duration of diabetes and
complications, voluptuary habits such as tobacco smoke (both number of packets/year and
n° packets/day), alcohol consumption, coffee consumption, physical activity.

- Physical exam, general anthropometric parameters such as weight, height, circumference,
body mass index, waist-hip ratio, and blood pressure.

- Assessment of glycemic variability every three months using a continuous glucose
monitoring system.

- Collection of blood and urine samples to assess: glycated hemoglobin, fasting plasma
glucose (FPG), post-prandial glucose (PPG), fasting plasma insulin (FPI), HOMA-index
(HOMA-IR and HOMA-β), high sensitivity C-reactive protein (hs-CRP), total cholesterol,
LDL-cholesterol, HDL-cholesterol, tryglicerides, lipoprotein (a) [Lp(a)],
metalloproteinase-2 (MMP-2), metalloproteinase-9 (MMP-9), soluble adhesion molecules
(sICAM-1, sVCAM-1), sE-selectin, adiponectin (ADN), complete urinalysis, 24-hour
microalbuminuria.
Study TypeInterventional
Study PhasePhase 4
Study DesignIntervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
ConditionType 2 Diabetes Mellitus
InterventionDrug: Metformin
Metformin will be added to therapy for the first threre months.
Other Names:
500 mg three times a dayDrug: Pioglitazone
In patients not well controlled (glycated hemoglobin >6.5%) after three months of metformin, pioglitazone will be added.
Other Names:
15 mg twice a dayDrug: Sitagliptin
In patients not well controlled (glycated hemoglobin >6.5%) after three months of metformin and pioglitazone, sitagliptin will be added.
Other Names:
100 mg once a day
Study Arm (s)Experimental: Type 2 diabetic patients
Type 2 diabetic patients, naive to treatment, and not well controlled by diet (glycate hemoglobin > 6.5%, and < 9.0%) will be instructed to take metformin, followed by metformin plus pioglitazone, and then metformin plus pioglitazone plus sitagliptin.

Recruitment Information[ + expand ][ + ]

Recruitment StatusRecruiting
Estimated Enrollment64
Estimated Completion DateJune 2016
Estimated Primary Completion DateJune 2014
Eligibility Criteria
Inclusion Criteria:

- type 2 diabetic patients

- naive to therapy

- glycated hemoglobin > 6.5 and < 9.0 %

Exclusion Criteria:

- hepatic and renal diseases

- recent cardiovascular diseases

- previous pancreatitis

- history of cancer
GenderBoth
Ages18 Years
Accepts Healthy VolunteersNo
ContactsContact: Giuseppe Derosa, MD, PhD
giuseppe.derosa@unipv.it
Location CountriesItaly

Administrative Information[ + expand ][ + ]

NCT Number NCT01895569
Other Study ID Numbers20120021548
Has Data Monitoring CommitteeNo
Information Provided ByUniversity of Pavia
Study SponsorUniversity of Pavia
CollaboratorsIRCCS Policlinico S. Matteo
Investigators Principal Investigator: Giuseppe Derosa, MD, PhD IRCCS Policlinico San Matteo Foundation
Verification DateJuly 2013

Locations[ + expand ][ + ]

IRCCS Policlinico S. Matteo Foundation
Pavia, Italy, 27100
Contact: Giuseppe Derosa, MD, PhD | giuseppe.derosa@unipv.it
Principal Investigator: Giuseppe Derosa, MD, PhD
Recruiting