Type 2 DiabetesNCT01334684
Gene Expression Profiles and Metformin Efficacy in Type 2 Diabetes
A study testing Metformin in people with Type 2 Diabetes, run by Casa Sollievo della Sofferenza IRCCS at 1 site in Italy.
Trial 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. Read more about this study
- Who is it for?
- Ages 40 to 70 years
- Conditions the study is for
- Type 2 Diabetes
- What is being tested?
- Metformin
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteItaly
- Study dates
- May 2011to Sep 2013
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 40 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Type 2 diabetes (duration of diabetes of at least 2 years)
- age 40-70 yrs
- HbA1c > 6.4 < 9.0
Who cannot join
- insulin therapy
- contraindications to metformin use
Trial locations and contacts
1 site in 1 country.
Italy1 site
Casa Sollievo Della Sofferenza IRCCS
San Giovanni Rotondo, Foggia, 71013
About this study
Official title: White Blood Cells Gene Expression Profiles as a Tool for Predicting Metformin Efficacy in Patients With Type 2 Diabetes Mellitus
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.
- Conditions
- Type 2 Diabetes
- Being tested
- Metformin
- Keywords
- Type 2 Diabetes Mellitus, Metformin Efficacy, Gene Expression Profiles, Personalized Medicine
- Medical subject headings
- Diabetes Mellitus, Type 2
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MetforminDrug
Metformin, pills, 850 mg three times a day for three months
| Study group | Role | What they receive |
|---|---|---|
| Metformin | Other | 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. Receives: Drug: Metformin |
What is being measured
The primary outcome is the main question the study is designed to answer.
Fasting glucose change after metformin treatment in respect to mRNA and miRNA expression profiles in white blood cells
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.
Measured: Baseline and after three months of metfomin therapy
Secondary outcomes (1)
Change in fasting insulin levels after metformin treatment in respect to mRNA and miRNA expression profiles in white blood cells
Measured: Baseline and after three months of metfomin therapy
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Apr 2011 (estimated)
- Study startMay 2011
- Primary completionApr 2013 (estimated)
- Study completionSep 2013 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (11)Papers the sponsor has linked to this study.
- Other trials for Type 2 DiabetesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Casa Sollievo della Sofferenza IRCCS
- Sponsor type
- University, hospital or other
- Collaborators
- University Hospital, Catania
- Investigators
- Salvatore De Cosmo, MD, Study chair, Casa Sollievo della Sofferenza IRCCS
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01334684
- Sponsor's protocol ID
- GExpProMet
- Status last verified
- Feb 2011
- First submitted
- 12 Apr 2011
- Last updated
- 13 Apr 2011
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Nathan DM, Buse JB, Davidson MB, Ferrannini E, Holman RR, Sherwin R, Zinman B; American Diabetes Association; European Association for Study of Diabetes. Medical management of hyperglycemia in type 2 diabetes: a consensus algorithm for the initiation and adjustment of therapy: a consensus statement of the American Diabetes Association and the European Association for the Study of Diabetes. Diabetes Care. 2009 Jan;32(1):193-203. doi: 10.2337/dc08-9025. Epub 2008 Oct 22.
PubMed 18945920Iwao-Koizumi K, Matoba R, Ueno N, Kim SJ, Ando A, Miyoshi Y, Maeda E, Noguchi S, Kato K. Prediction of docetaxel response in human breast cancer by gene expression profiling. J Clin Oncol. 2005 Jan 20;23(3):422-31. doi: 10.1200/JCO.2005.09.078.
PubMed 15659489Bertucci F, Finetti P, Rougemont J, Charafe-Jauffret E, Nasser V, Loriod B, Camerlo J, Tagett R, Tarpin C, Houvenaeghel G, Nguyen C, Maraninchi D, Jacquemier J, Houlgatte R, Birnbaum D, Viens P. Gene expression profiling for molecular characterization of inflammatory breast cancer and prediction of response to chemotherapy. Cancer Res. 2004 Dec 1;64(23):8558-65. doi: 10.1158/0008-5472.CAN-04-2696.
PubMed 15574762Ayers M, Symmans WF, Stec J, Damokosh AI, Clark E, Hess K, Lecocke M, Metivier J, Booser D, Ibrahim N, Valero V, Royce M, Arun B, Whitman G, Ross J, Sneige N, Hortobagyi GN, Pusztai L. Gene expression profiles predict complete pathologic response to neoadjuvant paclitaxel and fluorouracil, doxorubicin, and cyclophosphamide chemotherapy in breast cancer. J Clin Oncol. 2004 Jun 15;22(12):2284-93. doi: 10.1200/JCO.2004.05.166. Epub 2004 May 10.
PubMed 15136595Xia L, Zhang D, Du R, Pan Y, Zhao L, Sun S, Hong L, Liu J, Fan D. miR-15b and miR-16 modulate multidrug resistance by targeting BCL2 in human gastric cancer cells. Int J Cancer. 2008 Jul 15;123(2):372-379. doi: 10.1002/ijc.23501.
PubMed 18449891Blower PE, Chung JH, Verducci JS, Lin S, Park JK, Dai Z, Liu CG, Schmittgen TD, Reinhold WC, Croce CM, Weinstein JN, Sadee W. MicroRNAs modulate the chemosensitivity of tumor cells. Mol Cancer Ther. 2008 Jan;7(1):1-9. doi: 10.1158/1535-7163.MCT-07-0573. Epub 2008 Jan 9.
PubMed 18187804Sarasin-Filipowicz M, Krol J, Markiewicz I, Heim MH, Filipowicz W. Decreased levels of microRNA miR-122 in individuals with hepatitis C responding poorly to interferon therapy. Nat Med. 2009 Jan;15(1):31-3. doi: 10.1038/nm.1902. Epub 2009 Jan 4.
PubMed 19122656Wingrove JA, Daniels SE, Sehnert AJ, Tingley W, Elashoff MR, Rosenberg S, Buellesfeld L, Grube E, Newby LK, Ginsburg GS, Kraus WE. Correlation of peripheral-blood gene expression with the extent of coronary artery stenosis. Circ Cardiovasc Genet. 2008 Oct;1(1):31-8. doi: 10.1161/CIRCGENETICS.108.782730.
PubMed 20031539Rosenberg S, Elashoff MR, Beineke P, Daniels SE, Wingrove JA, Tingley WG, Sager PT, Sehnert AJ, Yau M, Kraus WE, Newby LK, Schwartz RS, Voros S, Ellis SG, Tahirkheli N, Waksman R, McPherson J, Lansky A, Winn ME, Schork NJ, Topol EJ; PREDICT (Personalized Risk Evaluation and Diagnosis in the Coronary Tree) Investigators. Multicenter validation of the diagnostic accuracy of a blood-based gene expression test for assessing obstructive coronary artery disease in nondiabetic patients. Ann Intern Med. 2010 Oct 5;153(7):425-34. doi: 10.7326/0003-4819-153-7-201010050-00005.
PubMed 20921541Yakeu G, Butcher L, Isa S, Webb R, Roberts AW, Thomas AW, Backx K, James PE, Morris K. Low-intensity exercise enhances expression of markers of alternative activation in circulating leukocytes: roles of PPARgamma and Th2 cytokines. Atherosclerosis. 2010 Oct;212(2):668-73. doi: 10.1016/j.atherosclerosis.2010.07.002. Epub 2010 Jul 16.
PubMed 20723894Camargo A, Ruano J, Fernandez JM, Parnell LD, Jimenez A, Santos-Gonzalez M, Marin C, Perez-Martinez P, Uceda M, Lopez-Miranda J, Perez-Jimenez F. Gene expression changes in mononuclear cells in patients with metabolic syndrome after acute intake of phenol-rich virgin olive oil. BMC Genomics. 2010 Apr 20;11:253. doi: 10.1186/1471-2164-11-253.
PubMed 20406432
Study at a glance
From the registry record, last updated by the sponsor on 13 Apr 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- White Blood Cells Gene Expression Profiles as a Tool for Predicting Metformin Efficacy in Patients With Type 2 Diabetes Mellitus
- ClinicalTrials.gov ID
- NCT01334684
- Acronym / sponsor ID
- GExpProMet
- Conditions
- Type 2 Diabetes
- Keywords
- Type 2 Diabetes Mellitus, Metformin Efficacy, Gene Expression Profiles, Personalized Medicine
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Casa Sollievo della Sofferenza IRCCSUniversity, hospital or other
- Collaborators
- University Hospital, Catania
- Study start
- May 2011
- Primary completion
- Apr 2013 (estimated)
- Study completion
- Sep 2013 (estimated)
- First posted
- 13 Apr 2011 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Metformin | Other | Drug: MetforminAt 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. |
Who may qualify
- Ages
- 40 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Type 2 diabetes (duration of diabetes of at least 2 years)
- age 40-70 yrs
- HbA1c > 6.4 < 9.0
Key exclusion criteria (2 listed)
- insulin therapy
- contraindications to metformin use
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| MetforminMetformin, pills, 850 mg three times a day for three months | Drug | Metformin |
Primary outcome
Fasting 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
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.
1 secondary outcome
Change 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
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Apr 2011.
- Background: PubMed 18945920Nathan DM, Buse JB, Davidson MB, Ferrannini E, Holman RR, Sherwin R, Zinman B; American Diabetes Association; European Association for Study of Diabetes. Medical management of hyperglycemia in type 2 diabetes: a consensus algorithm for the initiation and adjustment of therapy: a consensus statement of the American Diabetes Association and the European Association for the Study of Diabetes. Diabetes Care. 2009 Jan;32(1):193-203. doi: 10.2337/dc08-9025. Epub 2008 Oct 22.
- Background: PubMed 15659489Iwao-Koizumi K, Matoba R, Ueno N, Kim SJ, Ando A, Miyoshi Y, Maeda E, Noguchi S, Kato K. Prediction of docetaxel response in human breast cancer by gene expression profiling. J Clin Oncol. 2005 Jan 20;23(3):422-31. doi: 10.1200/JCO.2005.09.078.
- Background: PubMed 15574762Bertucci F, Finetti P, Rougemont J, Charafe-Jauffret E, Nasser V, Loriod B, Camerlo J, Tagett R, Tarpin C, Houvenaeghel G, Nguyen C, Maraninchi D, Jacquemier J, Houlgatte R, Birnbaum D, Viens P. Gene expression profiling for molecular characterization of inflammatory breast cancer and prediction of response to chemotherapy. Cancer Res. 2004 Dec 1;64(23):8558-65. doi: 10.1158/0008-5472.CAN-04-2696.
- Background: PubMed 15136595Ayers M, Symmans WF, Stec J, Damokosh AI, Clark E, Hess K, Lecocke M, Metivier J, Booser D, Ibrahim N, Valero V, Royce M, Arun B, Whitman G, Ross J, Sneige N, Hortobagyi GN, Pusztai L. Gene expression profiles predict complete pathologic response to neoadjuvant paclitaxel and fluorouracil, doxorubicin, and cyclophosphamide chemotherapy in breast cancer. J Clin Oncol. 2004 Jun 15;22(12):2284-93. doi: 10.1200/JCO.2004.05.166. Epub 2004 May 10.
- Background: PubMed 18449891Xia L, Zhang D, Du R, Pan Y, Zhao L, Sun S, Hong L, Liu J, Fan D. miR-15b and miR-16 modulate multidrug resistance by targeting BCL2 in human gastric cancer cells. Int J Cancer. 2008 Jul 15;123(2):372-379. doi: 10.1002/ijc.23501.
- Background: PubMed 18187804Blower PE, Chung JH, Verducci JS, Lin S, Park JK, Dai Z, Liu CG, Schmittgen TD, Reinhold WC, Croce CM, Weinstein JN, Sadee W. MicroRNAs modulate the chemosensitivity of tumor cells. Mol Cancer Ther. 2008 Jan;7(1):1-9. doi: 10.1158/1535-7163.MCT-07-0573. Epub 2008 Jan 9.
- Background: PubMed 19122656Sarasin-Filipowicz M, Krol J, Markiewicz I, Heim MH, Filipowicz W. Decreased levels of microRNA miR-122 in individuals with hepatitis C responding poorly to interferon therapy. Nat Med. 2009 Jan;15(1):31-3. doi: 10.1038/nm.1902. Epub 2009 Jan 4.
- Background: PubMed 20031539Wingrove JA, Daniels SE, Sehnert AJ, Tingley W, Elashoff MR, Rosenberg S, Buellesfeld L, Grube E, Newby LK, Ginsburg GS, Kraus WE. Correlation of peripheral-blood gene expression with the extent of coronary artery stenosis. Circ Cardiovasc Genet. 2008 Oct;1(1):31-8. doi: 10.1161/CIRCGENETICS.108.782730.
- Background: PubMed 20921541Rosenberg S, Elashoff MR, Beineke P, Daniels SE, Wingrove JA, Tingley WG, Sager PT, Sehnert AJ, Yau M, Kraus WE, Newby LK, Schwartz RS, Voros S, Ellis SG, Tahirkheli N, Waksman R, McPherson J, Lansky A, Winn ME, Schork NJ, Topol EJ; PREDICT (Personalized Risk Evaluation and Diagnosis in the Coronary Tree) Investigators. Multicenter validation of the diagnostic accuracy of a blood-based gene expression test for assessing obstructive coronary artery disease in nondiabetic patients. Ann Intern Med. 2010 Oct 5;153(7):425-34. doi: 10.7326/0003-4819-153-7-201010050-00005.
- Background: PubMed 20723894Yakeu G, Butcher L, Isa S, Webb R, Roberts AW, Thomas AW, Backx K, James PE, Morris K. Low-intensity exercise enhances expression of markers of alternative activation in circulating leukocytes: roles of PPARgamma and Th2 cytokines. Atherosclerosis. 2010 Oct;212(2):668-73. doi: 10.1016/j.atherosclerosis.2010.07.002. Epub 2010 Jul 16.
- Background: PubMed 20406432Camargo A, Ruano J, Fernandez JM, Parnell LD, Jimenez A, Santos-Gonzalez M, Marin C, Perez-Martinez P, Uceda M, Lopez-Miranda J, Perez-Jimenez F. Gene expression changes in mononuclear cells in patients with metabolic syndrome after acute intake of phenol-rich virgin olive oil. BMC Genomics. 2010 Apr 20;11:253. doi: 10.1186/1471-2164-11-253.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Salvatore De Cosmo, MD study chair
Casa Sollievo della Sofferenza IRCCS
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Metformin in people with Type 2 Diabetes, run by Casa Sollievo della Sofferenza IRCCS at 1 site in Italy.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 13 Apr 2011. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Salvatore De Cosmo, MD (+39088241067, s.decosmo@operapadrepio.it), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Fasting 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). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01334684, which also lists 11 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Apr 2011.