ObesityNCT01518803
A Mediterranean-style Breakfast and Postprandial Lipid Disorders in Obese Pre-adolescents and Adults
A study testing Mediterranean-style breakfast and Western-style breakfast in people with Obesity, run by National Research Council, Spain at 1 site in Spain.
Trial summary
Obesity has a major impact on the development of cardiovascular disease and other related conditions and it is of particular concern in children. The prevalence of childhood overweight and obesity in Spain is among the highest in the European continent. Read more about this study
- Who is it for?
- Ages 11 to 15 yearsHealthy volunteers can take part
- Conditions the study is for
- Obesity
- What is being tested?
- Mediterranean-style breakfast and Western-style breakfast
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 48 participants
- Where
- 1 siteSpain
- Study dates
- May 2010to Dec 2015
- 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 11 to 15 years
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- Adolescents below 15 years-old with BMI ≥ 30 and above the 95 percentile for their gender and age.
- No history of psychiatric or organic disease, except for obesity.
- Appropriate cultural level to understand the study.
- A written informed consent of their parents or tutors.
Who cannot join
- Subjects being treated with drugs for any kind of disease.
- Those suffering of chronic diseases.
- A negative to participate in the study from them or their parents or tutors.
- Subjects having participated in another clinical study the preceding 3 months.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Influence of a Mediterranean-style Breakfast on Postprandial Lipid Disorders and Inflammatory Processes in Obese Pre-adolescents and Adults
Obesity has a major impact on the development of cardiovascular disease and other related conditions and it is of particular concern in children. The prevalence of childhood overweight and obesity in Spain is among the highest in the European continent. Childhood obesity has been associated with diseases that were thought to apply only to adults, such as the metabolic syndrome. Insulin resistance is the most important risk factor in subjects with severe obesity, which together with visceral obesity, exacerbates postprandial triglyceridemia, increasing cardiovascular risk.
In this context, the investigators hypothesize that the postprandial lipid metabolism is also impaired in obese pre-adolescents, as it is in obese adults. This includes not only exacerbated postprandial triglyceridemia, but also impaired levels of inflammation markers. In addition, the investigators hypothesize that the lipid and protein composition of postprandial chylomicrons and chylomicron remnants are also altered in obese children when compared with their normal-weight counterparts, and that these postprandial lipoproteins induce foam cell formation differently. The investigators also believe that a Mediterranean-style meal can help to normalize the altered postprandial lipid metabolism in obese adolescents.
Read the detailed description
Excess of body weight has led the World Health Organization to call it a global epidemic. Obesity has a major impact on the development of cardiovascular disease and other related conditions and it is of particular concern in children.
The prevalence of childhood overweight and obesity in Spain is among the highest in the European continent. The health consequences of obesity in children are not as evident as in adults, but childhood obesity has been associated with diseases that were thought to apply only to adults, such as the metabolic syndrome. Insulin resistance is the most important risk factor in subjects with severe obesity, which together with visceral obesity, exacerbates postprandial triglyceridemia, increasing cardiovascular risk.
However, this has not been appropriately studied in children for the moment. The excellent results of previous projects carried out by our research group have shown the beneficial properties of olive oil on health, being the main ingredient of the Mediterranean Diet, including an improved postprandial lipid pattern.
In this context, our hypothesis is that the postprandial lipid metabolism is also impaired in obese pre-adolescents, as it is in obese adults. This includes not only exacerbated postprandial triglyceridemia, but also impaired levels of inflammation markers. In addition, we hypothesize that the lipid and protein composition of postprandial chylomicrons and chylomicron remnants are also altered in obese children when compared with their normal-weight counterparts, and that these postprandial lipoproteins induce foam cell formation differently, as well as a different release of inflammation markers by macrophages. However, it is also part of our hypothesis, that a Mediterranean-style meal,administrated as a breakfast can help to normalize the altered postprandial lipid metabolism in obese children.
With this aim, we will carry out a dietary intervention study with a randomized, crossover design in a single meal, in order to measure changes in the postprandial lipid metabolism in pre-adolescents and adults affected by obesity and to compare the effect of a Mediterranean-style breakfast. Chylomicron remnants will be isolated from blood serum and will be fully characterized. These particles will be incubated with monocyte cell lines to determine their effect on cellular lipid metabolism and the production of inflammatory factors. In addition, the influence of obesity in the composition and structure of the plasma membrane will also be assessed. The results will generate knowledge about the pathophysiology of obesity in children and will contribute to the dietary recommendations for weight maintenance in this population. Furthermore, it will provide information on the development of atherosclerosis during the postprandial period, which may begin at very young ages.
- Conditions
- Obesity
- Being tested
- Mediterranean-style breakfast, Western-style breakfast
- Keywords
- Obesity, Adolescence, Lipid metabolism, Mediterranean diet, Chylomicron, Macrophages
- Medical subject headings
- Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Mediterranean-style breakfastDietary supplement
The experimental meal will be administered early in the morning as breakfast, "Cardioliva" olive oil, bread (2 slices), tomatoes (half piece), fruit juice (200 mL), skim milk (150 mL). The amount of fat administered will be the equivalent to 0.75 g per kg of body weight.
Western-style breakfastDietary supplement
The experimental meal will be administered early in the morning as breakfast, containing butter, bread 82 slices), chocolate milk (200 mL). The amount of fat administered will be the equivalent to 0.75 g per kg of body weight.
| Study group | Role | What they receive |
|---|---|---|
| Mediterranean-style breakfast | Active comparator | Not described Receives: Dietary Supplement: Mediterranean-style breakfast |
| Western-style breakfast | Active comparator | Not described Receives: Dietary Supplement: Western-style breakfast |
What is being measured
The primary outcome is the main question the study is designed to answer.
Delay in plasma triglyceride and CM clearance in obese pre-adolescents
It is expected to find a delay in plasma triglyceride and CM clearance in obese pre-adolescents, and to find more atherogenic features in CM and CMR in this group. These characteristics include changes in the lipid and protein composition of lipoproteins. It is expected to define the CM and CMR concentration in the blood of obese pre-adolescents, using as marker the presence of apo B48 in these particles. Particle size and lipid composition will show to what extent CM and CMR are more or less atherogenic in pre-adolescents and obese adults.
Measured: 2 and 4 hours postprandially
Secondary outcomes (1)
Differences in the composition and structure of the plasma membrane in obese volunteers
We expect to find changes in the composition and structure of the plasma membrane in obese volunteers, which could be related to increased blood pressure. For the first time, we will unravel the molecular species composition of plasma membrane phospholipids of obese pre-adolescents, which will be a milestone in the study of the physiological implications of obesity in this population.
Measured: Time 0, baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Jan 2012 (estimated)
- Study startMay 2010
- Primary completionDec 2015
- Study completionDec 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for ObesityStudies 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
- Prevention
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind
- Who is masked
- Participant, Care provider
- Enrolment
- 48 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Research Council, Spain
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Javier Sánchez Perona, National Research Council, Spain
- Investigators
- Javier S Perona, PhD, Principal investigator, National Research Council, Spain
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01518803
- Sponsor's protocol ID
- AGL2011-23810
- Status last verified
- Sep 2016
- First submitted
- 23 Jan 2012
- Last updated
- 21 Sep 2016
- Results posted
- No
- Data monitoring committee
- No
Publications
Aguilar Cordero MJ, Gonzalez Jimenez E, Sanchez Perona J, Padilla Lopez CA, Alvarez Ferre J, Mur Villar N, Rivas Garcia F. [The Guadix study of the effects of a Mediterranean-diet breakfast on the postprandial lipid parameters of overweight and obese pre-adolescents]. Nutr Hosp. 2010 Nov-Dec;25(6):1025-33. Spanish.
PubMed 21519776
Study at a glance
From the registry record, last updated by the sponsor on 21 Sep 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Influence of a Mediterranean-style Breakfast on Postprandial Lipid Disorders and Inflammatory Processes in Obese Pre-adolescents and Adults
- ClinicalTrials.gov ID
- NCT01518803
- Acronym / sponsor ID
- AGL2011-23810
- Conditions
- Obesity
- Keywords
- Obesity, Adolescence, Lipid metabolism, Mediterranean diet, Chylomicron, Macrophages
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 48 participants (actual)
- Lead sponsor
- National Research Council, SpainOther government
- Study start
- May 2010
- Primary completion
- Dec 2015 (actual)
- Study completion
- Dec 2015 (actual)
- First posted
- 26 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.
Obesity has a major impact on the development of cardiovascular disease and other related conditions and it is of particular concern in children. The prevalence of childhood overweight and obesity in Spain is among the highest in the European continent. Childhood obesity has been associated with diseases that were thought to apply only to adults, such as the metabolic syndrome. Insulin resistance is the most important risk factor in subjects with severe obesity, which together with visceral obesity, exacerbates postprandial triglyceridemia, increasing cardiovascular risk.
In this context, the investigators hypothesize that the postprandial lipid metabolism is also impaired in obese pre-adolescents, as it is in obese adults. This includes not only exacerbated postprandial triglyceridemia, but also impaired levels of inflammation markers. In addition, the investigators hypothesize that the lipid and protein composition of postprandial chylomicrons and chylomicron remnants are also altered in obese children when compared with their normal-weight counterparts, and that these postprandial lipoproteins induce foam cell formation differently. The investigators also believe that a Mediterranean-style meal can help to normalize the altered postprandial lipid metabolism in obese adolescents.
Detailed description
Excess of body weight has led the World Health Organization to call it a global epidemic. Obesity has a major impact on the development of cardiovascular disease and other related conditions and it is of particular concern in children.
The prevalence of childhood overweight and obesity in Spain is among the highest in the European continent. The health consequences of obesity in children are not as evident as in adults, but childhood obesity has been associated with diseases that were thought to apply only to adults, such as the metabolic syndrome. Insulin resistance is the most important risk factor in subjects with severe obesity, which together with visceral obesity, exacerbates postprandial triglyceridemia, increasing cardiovascular risk.
However, this has not been appropriately studied in children for the moment. The excellent results of previous projects carried out by our research group have shown the beneficial properties of olive oil on health, being the main ingredient of the Mediterranean Diet, including an improved postprandial lipid pattern.
In this context, our hypothesis is that the postprandial lipid metabolism is also impaired in obese pre-adolescents, as it is in obese adults. This includes not only exacerbated postprandial triglyceridemia, but also impaired levels of inflammation markers. In addition, we hypothesize that the lipid and protein composition of postprandial chylomicrons and chylomicron remnants are also altered in obese children when compared with their normal-weight counterparts, and that these postprandial lipoproteins induce foam cell formation differently, as well as a different release of inflammation markers by macrophages. However, it is also part of our hypothesis, that a Mediterranean-style meal,administrated as a breakfast can help to normalize the altered postprandial lipid metabolism in obese children.
With this aim, we will carry out a dietary intervention study with a randomized, crossover design in a single meal, in order to measure changes in the postprandial lipid metabolism in pre-adolescents and adults affected by obesity and to compare the effect of a Mediterranean-style breakfast. Chylomicron remnants will be isolated from blood serum and will be fully characterized. These particles will be incubated with monocyte cell lines to determine their effect on cellular lipid metabolism and the production of inflammatory factors. In addition, the influence of obesity in the composition and structure of the plasma membrane will also be assessed. The results will generate knowledge about the pathophysiology of obesity in children and will contribute to the dietary recommendations for weight maintenance in this population. Furthermore, it will provide information on the development of atherosclerosis during the postprandial period, which may begin at very young ages.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind (participant, care provider)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Mediterranean-style breakfast | Active comparator | Dietary Supplement: Mediterranean-style breakfast |
| Western-style breakfast | Active comparator | Dietary Supplement: Western-style breakfast |
Who may qualify
- Ages
- 11 to 15 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (4 listed)
- Adolescents below 15 years-old with BMI ≥ 30 and above the 95 percentile for their gender and age.
- No history of psychiatric or organic disease, except for obesity.
- Appropriate cultural level to understand the study.
- A written informed consent of their parents or tutors.
Key exclusion criteria (4 listed)
- Subjects being treated with drugs for any kind of disease.
- Those suffering of chronic diseases.
- A negative to participate in the study from them or their parents or tutors.
- Subjects having participated in another clinical study the preceding 3 months.
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 |
|---|---|---|
| Mediterranean-style breakfastThe experimental meal will be administered early in the morning as breakfast, "Cardioliva" olive oil, bread (2 slices), tomatoes (half piece), fruit juice (200 mL), skim milk (150 mL). The amount of fat administered will be the equivalent to 0.75 g per kg of body weight. | Dietary supplement | Mediterranean-style breakfast |
| Western-style breakfastThe experimental meal will be administered early in the morning as breakfast, containing butter, bread 82 slices), chocolate milk (200 mL). The amount of fat administered will be the equivalent to 0.75 g per kg of body weight. | Dietary supplement | Western-style breakfast |
Primary outcome
Delay in plasma triglyceride and CM clearance in obese pre-adolescents
Time frame: 2 and 4 hours postprandially
It is expected to find a delay in plasma triglyceride and CM clearance in obese pre-adolescents, and to find more atherogenic features in CM and CMR in this group. These characteristics include changes in the lipid and protein composition of lipoproteins. It is expected to define the CM and CMR concentration in the blood of obese pre-adolescents, using as marker the presence of apo B48 in these particles. Particle size and lipid composition will show to what extent CM and CMR are more or less atherogenic in pre-adolescents and obese adults.
1 secondary outcome
Differences in the composition and structure of the plasma membrane in obese volunteers
Time frame: Time 0, baseline
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 21 Sep 2016.
- Background: PubMed 21519776Aguilar Cordero MJ, Gonzalez Jimenez E, Sanchez Perona J, Padilla Lopez CA, Alvarez Ferre J, Mur Villar N, Rivas Garcia F. [The Guadix study of the effects of a Mediterranean-diet breakfast on the postprandial lipid parameters of overweight and obese pre-adolescents]. Nutr Hosp. 2010 Nov-Dec;25(6):1025-33. Spanish.
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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.
Javier S Perona, PhD principal investigator
National Research Council, Spain
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Mediterranean-style breakfast and Western-style breakfast in people with Obesity, run by National Research Council, Spain at 1 site in Spain.
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 4 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 21 Sep 2016. 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 Spain. 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?
Delay in plasma triglyceride and CM clearance in obese pre-adolescents (time frame: 2 and 4 hours postprandially). 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 NCT01518803, which also lists 1 linked publication.
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 21 Sep 2016.