Type 2 Diabetes MellitusNCT01521624
Metformin Effects on Oxidative Stress Parameters in Newly Diagnosed Type 2 Diabetes Patients
A study testing Metformin in people with Type 2 Diabetes Mellitus, run by Tehran University of Medical Sciences at 1 site in Iran.
Trial summary
Oxidative stress plays a key role in the pathogenesis of diabetes complications. Chronic hyperglycemia and disturbed lipid regulation commonly seen in diabetes are the main causes of this process. Read more about this study
- Who is it for?
- Ages 40 years and older
- Conditions the study is for
- Type 2 Diabetes Mellitus
- What is being tested?
- Metformin
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 108 participants
- Where
- 1 siteIran
- Study dates
- Oct 2010to Sep 2011
- 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Newly diagnosed type 2 diabetes patients based on American Diabetes Association criteria for diagnosis of diabetes
Who cannot join
- No history of serious chronic illnesses of heart, lung, and kidney
- No prior treatment with anti-diabetes medications for either diabetes or conditions associated with hyperglycemia
- No intake of prescribed or over-the-counter vitamins C and E in the past year; - No intake of aspirin in the past year
- No history of excessive alcohol intake in the past year
Trial locations and contacts
1 site in 1 country.
Iran1 site
Tehran University of Medical Sciences
Tehran, Tehran Province, 13145-784
About this study
Official title: Comparing Effects of Metformin Plus Life Style Modification Compared With Life Style Modification Alone in Lowering Parameters of Oxidative Stress in Newly Diagnosed Type 2 Diabetes Patients
Oxidative stress plays a key role in the pathogenesis of diabetes complications. Chronic hyperglycemia and disturbed lipid regulation commonly seen in diabetes are the main causes of this process. Despite the critical role of oxidative stress in diabetes, most clinical trials with available antioxidants and vitamins have either failed to show any long term benefits or have produced inconsistent results (10-11). There has been growing interest in establishing the possible roles of oral hypoglycemic agents including Metformin in reduction of oxidative stress. Metformin, the most common prescribed oral medication in type 2 diabetes, lowers HbA1c around 1.5%, rarely causes hypoglycemia (compared with insulin or sulfonylureas), has relatively few contraindications, its adverse effects are generally tolerable, does not cause weight gain, is cheap, and is highly acceptable among patients. Given the long term benefits observed with metformin use, a role in modulating oxidative stress is imputable. We designed this study to evaluate the actions of metformin on oxidative stress in a group of medication-naïve newly diagnosed type 2 diabetes patients.
- Conditions
- Type 2 Diabetes Mellitus
- Being tested
- Metformin
- 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 1000 mg Daily in two divided doses plus advice for lifestyle modification
| Study group | Role | What they receive |
|---|---|---|
| Case | Active comparator | Metformin 1000 mg Daily in two divided doses plus advice for lifestyle modification Receives: Drug: Metformin |
| Control | No intervention | Subjects provided only advice for lifestyle modification with no drug intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Serum concentrations of various markers of oxidative stress
Serum concentrations of markers of oxidative stress (i.e. advanced glycation end products, advanced oxidation protein products, ferritin reducing ability of plasma) along with activities of antioxidant enzymes (i.e. paraoxonase1, lecithin cholesterol asyltransferase) are measured. To assess the change in inflammatory condition associated with fat tissue dysfunction (a close entity to oxidative stress) serum concentrations of fat tissue hormones (i.e. leptin, vaspin, adiponectin, visfatin)are also assessed.
Measured: 12 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Jan 2012 (estimated)
- Study startOct 2010
- Primary completionMar 2011
- Study completionSep 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Type 2 Diabetes MellitusStudies 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
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 108 participants (actual)
Sponsor and investigators
- Lead sponsor
- Tehran University of Medical Sciences
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alireza Esteghamati, Tehran University of Medical Sciences
- Investigators
- Alireza Esteghamati, M.D., Principal investigator, Tehran University of Medical Sciences
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01521624
- Sponsor's protocol ID
- 90-01-30-13350
- Status last verified
- Jan 2012
- First submitted
- 26 Jan 2012
- Last updated
- 31 Jan 2012
- Results posted
- No
- Data monitoring committee
- No
Publications
Esteghamati A, Rezvani S, Khajeh E, Ebadi M, Nakhjavani M, Noshad S. Comparative effects of metformin and pioglitazone on YKL-40 in type 2 diabetes: a randomized clinical trial. J Endocrinol Invest. 2014 Dec;37(12):1211-8. doi: 10.1007/s40618-014-0154-x. Epub 2014 Aug 20.
PubMed 25138574Mirmiranpour H, Mousavizadeh M, Noshad S, Ghavami M, Ebadi M, Ghasemiesfe M, Nakhjavani M, Esteghamati A. Comparative effects of pioglitazone and metformin on oxidative stress markers in newly diagnosed type 2 diabetes patients: a randomized clinical trial. J Diabetes Complications. 2013 Sep-Oct;27(5):501-7. doi: 10.1016/j.jdiacomp.2013.05.006. Epub 2013 Jul 23.
PubMed 23891275Esteghamati A, Eskandari D, Mirmiranpour H, Noshad S, Mousavizadeh M, Hedayati M, Nakhjavani M. Effects of metformin on markers of oxidative stress and antioxidant reserve in patients with newly diagnosed type 2 diabetes: a randomized clinical trial. Clin Nutr. 2013 Apr;32(2):179-85. doi: 10.1016/j.clnu.2012.08.006. Epub 2012 Aug 21.
PubMed 22963881
Study at a glance
From the registry record, last updated by the sponsor on 31 Jan 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparing Effects of Metformin Plus Life Style Modification Compared With Life Style Modification Alone in Lowering Parameters of Oxidative Stress in Newly Diagnosed Type 2 Diabetes Patients
- ClinicalTrials.gov ID
- NCT01521624
- Acronym / sponsor ID
- 90-01-30-13350
- Conditions
- Type 2 Diabetes Mellitus
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 108 participants (actual)
- Lead sponsor
- Tehran University of Medical SciencesUniversity, hospital or other
- Study start
- Oct 2010
- Primary completion
- Mar 2011 (actual)
- Study completion
- Sep 2011 (actual)
- First posted
- 30 Jan 2012 (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.
Oxidative stress plays a key role in the pathogenesis of diabetes complications. Chronic hyperglycemia and disturbed lipid regulation commonly seen in diabetes are the main causes of this process. Despite the critical role of oxidative stress in diabetes, most clinical trials with available antioxidants and vitamins have either failed to show any long term benefits or have produced inconsistent results (10-11). There has been growing interest in establishing the possible roles of oral hypoglycemic agents including Metformin in reduction of oxidative stress. Metformin, the most common prescribed oral medication in type 2 diabetes, lowers HbA1c around 1.5%, rarely causes hypoglycemia (compared with insulin or sulfonylureas), has relatively few contraindications, its adverse effects are generally tolerable, does not cause weight gain, is cheap, and is highly acceptable among patients. Given the long term benefits observed with metformin use, a role in modulating oxidative stress is imputable. We designed this study to evaluate the actions of metformin on oxidative stress in a group of medication-naïve newly diagnosed type 2 diabetes patients.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Case | Active comparator | Drug: MetforminMetformin 1000 mg Daily in two divided doses plus advice for lifestyle modification |
| Control | No intervention | –Subjects provided only advice for lifestyle modification with no drug intervention |
Who may qualify
- Ages
- 40 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Newly diagnosed type 2 diabetes patients based on American Diabetes Association criteria for diagnosis of diabetes
Key exclusion criteria (4 listed)
- No history of serious chronic illnesses of heart, lung, and kidney
- No prior treatment with anti-diabetes medications for either diabetes or conditions associated with hyperglycemia
- No intake of prescribed or over-the-counter vitamins C and E in the past year; - No intake of aspirin in the past year
- No history of excessive alcohol intake in the past year
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 1000 mg Daily in two divided doses plus advice for lifestyle modification | Drug | Case |
Primary outcome
Serum concentrations of various markers of oxidative stress
Time frame: 12 weeks
Serum concentrations of markers of oxidative stress (i.e. advanced glycation end products, advanced oxidation protein products, ferritin reducing ability of plasma) along with activities of antioxidant enzymes (i.e. paraoxonase1, lecithin cholesterol asyltransferase) are measured. To assess the change in inflammatory condition associated with fat tissue dysfunction (a close entity to oxidative stress) serum concentrations of fat tissue hormones (i.e. leptin, vaspin, adiponectin, visfatin)are also assessed.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 31 Jan 2012.
- Derived from this study: PubMed 25138574Esteghamati A, Rezvani S, Khajeh E, Ebadi M, Nakhjavani M, Noshad S. Comparative effects of metformin and pioglitazone on YKL-40 in type 2 diabetes: a randomized clinical trial. J Endocrinol Invest. 2014 Dec;37(12):1211-8. doi: 10.1007/s40618-014-0154-x. Epub 2014 Aug 20.
- Derived from this study: PubMed 23891275Mirmiranpour H, Mousavizadeh M, Noshad S, Ghavami M, Ebadi M, Ghasemiesfe M, Nakhjavani M, Esteghamati A. Comparative effects of pioglitazone and metformin on oxidative stress markers in newly diagnosed type 2 diabetes patients: a randomized clinical trial. J Diabetes Complications. 2013 Sep-Oct;27(5):501-7. doi: 10.1016/j.jdiacomp.2013.05.006. Epub 2013 Jul 23.
- Derived from this study: PubMed 22963881Esteghamati A, Eskandari D, Mirmiranpour H, Noshad S, Mousavizadeh M, Hedayati M, Nakhjavani M. Effects of metformin on markers of oxidative stress and antioxidant reserve in patients with newly diagnosed type 2 diabetes: a randomized clinical trial. Clin Nutr. 2013 Apr;32(2):179-85. doi: 10.1016/j.clnu.2012.08.006. Epub 2012 Aug 21.
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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.
Alireza Esteghamati, M.D. principal investigator
Tehran University of Medical Sciences
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 Mellitus, run by Tehran University of Medical Sciences at 1 site in Iran.
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 1 inclusion and 4 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: finished, as of the sponsor's last update on 31 Jan 2012. 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 Iran. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Serum concentrations of various markers of oxidative stress (time frame: 12 weeks). 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 NCT01521624, which also lists 3 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 31 Jan 2012.