Gene Expression Profiles and Metformin Efficacy in Type 2 Diabetes

Overview[ - collapse ][ - ]

Purpose Our general aim is to investigate whether messenger RNA (mRNA) and/or microRNA (miRNA) expression profiles in white blood cells, predict metformin monotherapy efficacy in patients with type 2 diabetes.
ConditionType 2 Diabetes
InterventionDrug: Metformin
PhaseN/A
SponsorCasa Sollievo della Sofferenza IRCCS
Responsible PartyCasa Sollievo della Sofferenza IRCCS
ClinicalTrials.gov IdentifierNCT01334684
First ReceivedApril 12, 2011
Last UpdatedApril 12, 2011
Last verifiedFebruary 2011

Tracking Information[ + expand ][ + ]

First Received DateApril 12, 2011
Last Updated DateApril 12, 2011
Start DateMay 2011
Estimated Primary Completion DateSeptember 2013
Current Primary Outcome MeasuresFasting glucose change after metformin treatment in respect to mRNA and miRNA expression profiles in white blood cells [Time Frame: Baseline and after three months of metfomin therapy] [Designated as safety issue: Yes]Changes in fasting glucose levels will be used to evaluate if metformin monotherapy efficacy in type 2 diabetic patients is predicted by mRNA and/or miRNA expression profiles.
Please note that metformin major effect is to decrease hepatic glucose output and, therefore, to lower fasting plasma glucose which is, in fact, the clinical outcome used in this study.
Finally, because of a very short wash-out period (i.e. 5 days) we will not be able to use HbA1c which will be inevitably conditioned by previous oral hypoglicemic therapy.
Current Secondary Outcome MeasuresChange in fasting insulin levels after metformin treatment in respect to mRNA and miRNA expression profiles in white blood cells [Time Frame: Baseline and after three months of metfomin therapy] [Designated as safety issue: No]

Descriptive Information[ + expand ][ + ]

Brief TitleGene Expression Profiles and Metformin Efficacy in Type 2 Diabetes
Official TitleWhite Blood Cells Gene Expression Profiles as a Tool for Predicting Metformin Efficacy in Patients With Type 2 Diabetes Mellitus
Brief Summary
Our general aim is to investigate whether messenger RNA (mRNA) and/or microRNA (miRNA)
expression profiles in white blood cells, predict metformin monotherapy efficacy in patients
with type 2 diabetes.
Detailed DescriptionNot Provided
Study TypeInterventional
Study PhaseN/A
Study DesignEndpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
ConditionType 2 Diabetes
InterventionDrug: Metformin
Metformin, pills, 850 mg three times a day for three months
Study Arm (s)Other: Metformin
At study entry, all oral hypoglycemic agents will be discontinued for 5 days and then metformin (2,550 mg/daily) will be given for 3 months. Fasting plasma glucose will be measured at baseline and 3 months after metformin treatment. Patients will be stratified according to the median value of metformin efficacy as indicated by fasting glucose change after metformin treatment (i.e. baseline fasting glucose minus 3-month fasting glucose).
So, two subgroups of patients will be obtained, defined as relatively "high responders" (individual fasting glucose change > median value) or relatively "low responders" (individual fasting glucose change < median value) to metformin monotherapy.

Recruitment Information[ + expand ][ + ]

Recruitment StatusNot yet recruiting
Estimated Enrollment100
Estimated Completion DateSeptember 2013
Estimated Primary Completion DateApril 2013
Eligibility Criteria
Inclusion Criteria:

- Type 2 diabetes (duration of diabetes of at least 2 years)

- age 40-70 yrs

- HbA1c > 6.4 < 9.0

Exclusion Criteria:

- insulin therapy

- contraindications to metformin use
GenderBoth
Ages40 Years
Accepts Healthy VolunteersNo
ContactsContact: Salvatore De Cosmo, MD
+39088241067
s.decosmo@operapadrepio.it
Location CountriesItaly

Administrative Information[ + expand ][ + ]

NCT Number NCT01334684
Other Study ID NumbersGExpProMet
Has Data Monitoring CommitteeYes
Information Provided ByCasa Sollievo della Sofferenza IRCCS
Study SponsorCasa Sollievo della Sofferenza IRCCS
CollaboratorsUniversity Hospital, Catania
Investigators Study Chair: Salvatore De Cosmo, MD Casa Sollievo della Sofferenza IRCCS
Verification DateFebruary 2011

Locations[ + expand ][ + ]

Casa Sollievo Della Sofferenza IRCCS
San Giovanni Rotondo, Foggia, Italy, 71013
Not yet recruiting