Metabolic SyndromeNCT00945854
Wholegrain Cereal Diet and Insulin Sensitivity
A study testing Wholegrain cereal diet and Refined cereal diet in people with Metabolic Syndrome, run by Federico II University at 1 site in Italy.
Trial summary
A diet with the multiple beneficial characteristics of whole grains and, more in general, of "healthy cereals" favorably influences glucose and insulin metabolism in subjects with metabolic syndrome. Read more about this study
- Who is it for?
- Ages 40 to 70 years
- Conditions the study is for
- Metabolic Syndrome
- What is being tested?
- Wholegrain cereal diet and Refined cereal diet
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteItaly
- Study dates
- Mar 2008to Dec 2010
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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
- Subjects with at least three of the following criteria of metabolic syndrome according to ATPIII-NCEP criteria:
- waist circumference >102 for men and 88 for women,
- fasting total serum triacyglycerol concentration >1.7 mmol/L,
- fasting HDL cholesterol <1.0 mmol/L for men or <1.3 mmol/L for women,
- IFG (plasma glucose between 6.1 and 6.9 mmol/L) or
- blood pressure >130/85 mmHg or use of blood pressure medication
- Hypertension in stable control (BP <135/80 mmHg) by means of drugs, which will not be allowed to be changed during the study
- Absence of main cardiovascular events (IMA, Ictus)
Who cannot join
- Diabetes mellitus diagnosed according to history of diabetes or blood glucose ≥ 200 mg/dL (11.1 mmol/L) 2 hours after a 75 g Oral glucose tolerance test (OGTT) to be performed during the run-in period in all the subjects
- Any drug able to influence glucose and lipid metabolism (hypolipidemic drugs, cholesterol lowering foodstuffs, anti-inflammatory drugs)
- Renal failure (serum creatinine > 1.5 mg/dL) and liver failure (ALT/AST> 2 times above normal values)
- Anemia (Hb < 12g/dl) or any other chronic disease
Trial locations and contacts
1 site in 1 country.
Italy1 site
Dept. of Clinical and Experimental Medicine, Federico II University
Naples, 80131
About this study
Official title: Effect of Whole Grain Rich Diet on Insulin Sensitivity in Individuals With Metabolic Syndrome
A diet with the multiple beneficial characteristics of whole grains and, more in general, of "healthy cereals" favorably influences glucose and insulin metabolism in subjects with metabolic syndrome. Therefore, the aim of the study is to evaluate the long term effects of a diet containing "healthy cereals" versus a control diet, on glucose and insulin metabolism in subjects with metabolic syndrome.
- Conditions
- Metabolic Syndrome
- Being tested
- Wholegrain cereal diet, Refined cereal diet
- Keywords
- wholegrain cereals, glycemic index, metabolic syndrome, insulin sensitivity
- Medical subject headings
- Metabolic Syndrome, Insulin Resistance
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Wholegrain cereal dietOther
Thirty subjects with metabolic syndrome, after an initial run-in period of 4 weeks, during which they stabilise their own diet and other lifestyle habits, are assigned to a diet based on wholegrain cereals and foods with low glycemic index for a period of 12 weeks. Before and after the dietary treatment, a frequently samples intravenous glucose tolerance is carried out to measure the effects of the intervention on glucose and insulin metabolism. At beginning and at the end of intervention, the subjects consume also a standard test meal to evaluate the postprandial response of glucose, insulin, lipids, oxidative parameters and inflammatory molecules.
Refined cereal dietOther
Thirty subjects with metabolic syndrome, after an initial run-in period of 4 weeks, during which they stabilise their own diet and other lifestyle habits, are assigned to a diet based on refined cereals and foods with high glycemic index for a period of 12 weeks. Before and after the dietary treatment, a frequently samples intravenous glucose tolerance is carried out to measure the effects of the intervention on glucose and insulin metabolism. At beginning and at the end of intervention, the subjects consume also a standard test meal to evaluate the postprandial response of glucose, insulin, lipids, oxidative parameters and inflammatory molecules.
| Study group | Role | What they receive |
|---|---|---|
| Wholegrain cereal diet | Active comparator | Treatment with a diet based on wholegrain cereals and foods with low glycemic index Receives: Other: Wholegrain cereal diet |
| Refined cereal diet | Active comparator | Treatment with a diet based on refined cereals and foods with high glycemic index Receives: Other: Refined cereal diet |
What is being measured
The primary outcome is the main question the study is designed to answer.
Insulin Sensitivity (Si)
Peripheral insulin sensitivity was assessed by FSIGT. A glucose dose of 300 mg/kg body weight was given intravenously followed by a bolus of 0.03 U/kg of insulin injected after 20 min. Blood samples were frequently collected for 3 h for the measurement of plasma glucose and serum insulin concentrations, utilized to calculate the insulin sensitivity index Si
Measured: 12 weeks
Secondary outcomes (2)
Postprandial Insulin Changes
Blood samples during the standard meal test were drawn from an antecubital vein after a 12 h overnight fast and 0, 30, 60, 90, 120, 150 and 180 min postprandial for the measurement of plasma insulin response reported as average mean postprandial increment.
Measured: 12 weeks
Postprandial Plasma Lipid Changes
Blood samples during the standard meal test were drawn from an antecubital vein after a 12 h overnight fast and 0, 30, 60, 90, 120, 150 and 180 min postprandial for the measurement of triglyceride response reported as average mean postprandial increment.
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 posted24 Jul 2009 (estimated)
- Study startMar 2008
- Primary completionMar 2009
- Study completionDec 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Metabolic SyndromeStudies of the same condition, open and under way.
- More trials run by Federico II UniversityThe sponsor's other registered studies.
- 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
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- Federico II University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, rivellese angela, Federico II University
- Investigators
- Gabriele Riccardi, Prof., Study chair, Dept. of Clinical and Experimental Medicine, Federico II University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00945854
- Sponsor's protocol ID
- 04022009
- Other IDs
- European Community
- Status last verified
- May 2014
- First submitted
- 22 Jul 2009
- Last updated
- 26 Jun 2014
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Giacco R, Clemente G, Cipriano D, Luongo D, Viscovo D, Patti L, Di Marino L, Giacco A, Naviglio D, Bianchi MA, Ciati R, Brighenti F, Rivellese AA, Riccardi G. Effects of the regular consumption of wholemeal wheat foods on cardiovascular risk factors in healthy people. Nutr Metab Cardiovasc Dis. 2010 Mar;20(3):186-94. doi: 10.1016/j.numecd.2009.03.025. Epub 2009 Jun 7.
PubMed 19502018Costabile G, Vetrani C, Bozzetto L, Giacco R, Bresciani L, Del Rio D, Vitale M, Della Pepa G, Brighenti F, Riccardi G, Rivellese AA, Annuzzi G. Plasma TMAO increase after healthy diets: results from 2 randomized controlled trials with dietary fish, polyphenols, and whole-grain cereals. Am J Clin Nutr. 2021 Oct 4;114(4):1342-1350. doi: 10.1093/ajcn/nqab188.
PubMed 34091663Vitale M, Hanhineva K, Koistinen V, Auriola S, Paananen J, Costabile G, Della Pepa G, Rivellese AA, Riccardi G, Giacco R. Putative metabolites involved in the beneficial effects of wholegrain cereal: Nontargeted metabolite profiling approach. Nutr Metab Cardiovasc Dis. 2021 Apr 9;31(4):1156-1165. doi: 10.1016/j.numecd.2020.12.022. Epub 2020 Dec 30.
PubMed 33589320Polito R, Costabile G, Nigro E, Giacco R, Vetrani C, Anniballi G, Luongo D, Riccardi G, Daniele A, Annuzzi G. Nutritional factors influencing plasma adiponectin levels: results from a randomised controlled study with whole-grain cereals. Int J Food Sci Nutr. 2020 Jun;71(4):509-515. doi: 10.1080/09637486.2019.1680959. Epub 2019 Oct 22.
PubMed 31638838Karkkainen O, Lankinen MA, Vitale M, Jokkala J, Leppanen J, Koistinen V, Lehtonen M, Giacco R, Rosa-Sibakov N, Micard V, Rivellese AAA, Schwab U, Mykkanen H, Uusitupa M, Kolehmainen M, Riccardi G, Poutanen K, Auriola S, Hanhineva K. Diets rich in whole grains increase betainized compounds associated with glucose metabolism. Am J Clin Nutr. 2018 Nov 1;108(5):971-979. doi: 10.1093/ajcn/nqy169.
PubMed 30256894
Study at a glance
From the registry record, last updated by the sponsor on 26 Jun 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Whole Grain Rich Diet on Insulin Sensitivity in Individuals With Metabolic Syndrome
- ClinicalTrials.gov ID
- NCT00945854
- Acronym / sponsor ID
- 04022009
- Conditions
- Metabolic Syndrome
- Keywords
- wholegrain cereals, glycemic index, metabolic syndrome, insulin sensitivity
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- Federico II UniversityUniversity, hospital or other
- Study start
- Mar 2008
- Primary completion
- Mar 2009 (actual)
- Study completion
- Dec 2010 (actual)
- First posted
- 24 Jul 2009 (estimated)
- Results
- Posted 26 Jun 2014
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
A diet with the multiple beneficial characteristics of whole grains and, more in general, of "healthy cereals" favorably influences glucose and insulin metabolism in subjects with metabolic syndrome. Therefore, the aim of the study is to evaluate the long term effects of a diet containing "healthy cereals" versus a control diet, on glucose and insulin metabolism in subjects with metabolic syndrome.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Wholegrain cereal diet | Active comparator | Other: Wholegrain cereal dietTreatment with a diet based on wholegrain cereals and foods with low glycemic index |
| Refined cereal diet | Active comparator | Other: Refined cereal dietTreatment with a diet based on refined cereals and foods with high glycemic index |
Who may qualify
- Ages
- 40 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Subjects with at least three of the following criteria of metabolic syndrome according to ATPIII-NCEP criteria:
- Hypertension in stable control (BP <135/80 mmHg) by means of drugs, which will not be allowed to be changed during the study
- Absence of main cardiovascular events (IMA, Ictus)
Key exclusion criteria (4 listed)
- Diabetes mellitus diagnosed according to history of diabetes or blood glucose ≥ 200 mg/dL (11.1 mmol/L) 2 hours after a 75 g Oral glucose tolerance test (OGTT) to be performed during the run-in period in all the subjects
- Any drug able to influence glucose and lipid metabolism (hypolipidemic drugs, cholesterol lowering foodstuffs, anti-inflammatory drugs)
- Renal failure (serum creatinine > 1.5 mg/dL) and liver failure (ALT/AST> 2 times above normal values)
- Anemia (Hb < 12g/dl) or any other chronic disease
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 |
|---|---|---|
| Wholegrain cereal dietThirty subjects with metabolic syndrome, after an initial run-in period of 4 weeks, during which they stabilise their own diet and other lifestyle habits, are assigned to a diet based on wholegrain cereals and foods with low glycemic index for a period of 12 weeks. Before and after the dietary treatment, a frequently samples intravenous glucose tolerance is carried out to measure the effects of the intervention on glucose and insulin metabolism. At beginning and at the end of intervention, the subjects consume also a standard test meal to evaluate the postprandial response of glucose, insulin, lipids, oxidative parameters and inflammatory molecules. | Other | Wholegrain cereal diet |
| Refined cereal dietThirty subjects with metabolic syndrome, after an initial run-in period of 4 weeks, during which they stabilise their own diet and other lifestyle habits, are assigned to a diet based on refined cereals and foods with high glycemic index for a period of 12 weeks. Before and after the dietary treatment, a frequently samples intravenous glucose tolerance is carried out to measure the effects of the intervention on glucose and insulin metabolism. At beginning and at the end of intervention, the subjects consume also a standard test meal to evaluate the postprandial response of glucose, insulin, lipids, oxidative parameters and inflammatory molecules. | Other | Refined cereal diet |
Primary outcome
Insulin Sensitivity (Si)
Time frame: 12 weeks
Peripheral insulin sensitivity was assessed by FSIGT. A glucose dose of 300 mg/kg body weight was given intravenously followed by a bolus of 0.03 U/kg of insulin injected after 20 min. Blood samples were frequently collected for 3 h for the measurement of plasma glucose and serum insulin concentrations, utilized to calculate the insulin sensitivity index Si
2 secondary outcomes
Postprandial Insulin Changes
Time frame: 12 weeks
Postprandial Plasma Lipid Changes
Time frame: 12 weeks
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Jun 2014.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 19502018Giacco R, Clemente G, Cipriano D, Luongo D, Viscovo D, Patti L, Di Marino L, Giacco A, Naviglio D, Bianchi MA, Ciati R, Brighenti F, Rivellese AA, Riccardi G. Effects of the regular consumption of wholemeal wheat foods on cardiovascular risk factors in healthy people. Nutr Metab Cardiovasc Dis. 2010 Mar;20(3):186-94. doi: 10.1016/j.numecd.2009.03.025. Epub 2009 Jun 7.
- Derived from this study: PubMed 34091663Costabile G, Vetrani C, Bozzetto L, Giacco R, Bresciani L, Del Rio D, Vitale M, Della Pepa G, Brighenti F, Riccardi G, Rivellese AA, Annuzzi G. Plasma TMAO increase after healthy diets: results from 2 randomized controlled trials with dietary fish, polyphenols, and whole-grain cereals. Am J Clin Nutr. 2021 Oct 4;114(4):1342-1350. doi: 10.1093/ajcn/nqab188.
- Derived from this study: PubMed 33589320Vitale M, Hanhineva K, Koistinen V, Auriola S, Paananen J, Costabile G, Della Pepa G, Rivellese AA, Riccardi G, Giacco R. Putative metabolites involved in the beneficial effects of wholegrain cereal: Nontargeted metabolite profiling approach. Nutr Metab Cardiovasc Dis. 2021 Apr 9;31(4):1156-1165. doi: 10.1016/j.numecd.2020.12.022. Epub 2020 Dec 30.
- Derived from this study: PubMed 31638838Polito R, Costabile G, Nigro E, Giacco R, Vetrani C, Anniballi G, Luongo D, Riccardi G, Daniele A, Annuzzi G. Nutritional factors influencing plasma adiponectin levels: results from a randomised controlled study with whole-grain cereals. Int J Food Sci Nutr. 2020 Jun;71(4):509-515. doi: 10.1080/09637486.2019.1680959. Epub 2019 Oct 22.
- Derived from this study: PubMed 30256894Karkkainen O, Lankinen MA, Vitale M, Jokkala J, Leppanen J, Koistinen V, Lehtonen M, Giacco R, Rosa-Sibakov N, Micard V, Rivellese AAA, Schwab U, Mykkanen H, Uusitupa M, Kolehmainen M, Riccardi G, Poutanen K, Auriola S, Hanhineva K. Diets rich in whole grains increase betainized compounds associated with glucose metabolism. Am J Clin Nutr. 2018 Nov 1;108(5):971-979. doi: 10.1093/ajcn/nqy169.
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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.
Gabriele Riccardi, Prof. study chair
Dept. of Clinical and Experimental Medicine, Federico II University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Wholegrain cereal diet and Refined cereal diet in people with Metabolic Syndrome, run by Federico II University 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 8 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 26 Jun 2014. 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?
Yes. Results are posted in the registry (first posted 26 Jun 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Insulin Sensitivity (Si) (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 NCT00945854, which also lists 5 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 26 Jun 2014; AzTrials last refreshed its copy on 6 Nov 2026.