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ObesityOBEPALIPNCT01138774

Effects of Lipoic Acid and Eicosapentaenoic Acid (EPA) in Human Obesity

A study testing Double blind dietary intervention with EPA and lipoic acid in people with Obesity and Body Fat, run by Clinica Universidad de Navarra, Universidad de Navarra at 1 site in Spain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of the study is to analyze the effects of Lipoic acid and/or EPA supplementation on weight loss, lipid profile, insulin resistance, oxidative and inflammation parameters, metabolomic profile as well as on adipose tissue gene profile in healthy overweight/obese subjects following an energy-restricted diet. Read more about this study

Who is it for?
Ages 20 to 45 years, women onlyHealthy volunteers can take part
Conditions the study is for
Obesity, Body Fat, Insulin Resistance
What is being tested?
Double blind dietary intervention with EPA and lipoic acid
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
103 participants
Where
1 siteSpain
Study dates
Jan 2010to Dec 2012
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 20 to 45 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Women
  • Ages between 20 and 45 years, and with regular menstrual cycles
  • Body Mass Index (BMI) between 27.5 and 39.9 kg/m2
  • Weight unchanged (± 3 kg) for the last 3 months
  • All subjects should have an overall physical and psychological condition that the investigator believes is in accordance with the overall aim of the study.

Who cannot join

  • Use of prescription medication
  • To suffer from any chronic metabolic or obesity related disease, hepatic or renal systemic disease: Hypertension, dislipidemia, type 1 or 2 diabetes, thyroid function disorders, cirrhosis, fatty liver, etc.
  • Food allergies or food intolerance expected to come up during the study
  • Special diets (Atkins, vegetarian, etc.) prior three months the start of the study.
  • Eating disorders
  • Surgically treated obesity
  • Pregnant or lactating women or planning to be pregnant in the next two months
  • Alcohol or drug abuse (based on clinical parameters)

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Department of Nutrition, Food Science, Physiology and Toxicology. University of Navarra

    Pamplona, Navarre, 31008

Other trials in Spain

About this study

Official title: Cellular and Molecular Effects of Lipoic Acid and Eicosapentaenoic Acid (EPA) on Adipose Tissue: Potential Application in Human Obesity

The aim of the study is to analyze the effects of Lipoic acid and/or EPA supplementation on weight loss, lipid profile, insulin resistance, oxidative and inflammation parameters, metabolomic profile as well as on adipose tissue gene profile in healthy overweight/obese subjects following an energy-restricted diet.

Being tested
Double blind dietary intervention with EPA and lipoic acid
Keywords
Obesity, Calorie restriction, Eicosapentaenoic acid (EPA), Lipoic acid, Weight loss, Insulin sensitivity, Lipid metabolism, Adipokines, Inflammation, Oxidative stress, Adipose tissue gene profile, Metabolomic profile
Medical subject headings
Obesity, Insulin Resistance, Weight Loss, Inflammation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Double blind dietary intervention with EPA and lipoic acidDietary supplement

    Placebo-controlled dietary intervention during 10 weeks. All groups will have a dietary treatment with a calorie restriction of 30 % the subject's energy expenditure at baseline, supplemented with eicosapentaenoic acid (EPA) and/or lipoic acid (LA).

Study groups in NCT01138774
Study groupRoleWhat they receive
Control groupPlacebo comparatorDietary treatment with a calorie restriction of 30 % the subject's energy expenditure at baseline + placebos supplements
Receives: Dietary Supplement: Double blind dietary intervention with EPA and lipoic acid
EPA groupExperimentalDietary treatment with a calorie restriction of 30 % the subject's energy expenditure at baseline + EPA (1.3 g/day, 3 capsules of 433 mg/day) supplement (EPA Group).
Receives: Dietary Supplement: Double blind dietary intervention with EPA and lipoic acid
Lipoic acid groupExperimentalDietary treatment with a calorie restriction of 30 % the subject's energy expenditure at baseline + LA (300 mg/day, 3 capsules of 100 mg/day) supplement (LA Group)
Receives: Dietary Supplement: Double blind dietary intervention with EPA and lipoic acid
EPA+LA groupExperimentalDietary treatment with a calorie restriction of 30 % the subject's energy expenditure at baseline + EPA/LA (1.3 g /day and 300 mg/day respectively).
Receives: Dietary Supplement: Double blind dietary intervention with EPA and lipoic acid

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Weight Loss

    Volunteers will attend the Nutritional Intervention unit (University of Navarra), where their weight will be measured to the nearest 0.1 kg.

    Measured: Week 0 (baseline)

  2. Weight Loss

    Volunteers will attend the Nutritional Intervention unit (University of Navarra), where their weight will be measured to the nearest 0.1 kg.

    Measured: Week 2

  3. Weight Loss

    Volunteers will attend the Nutritional Intervention unit (University of Navarra), where their weight will be measured to the nearest 0.1 kg.

    Measured: Week 4

  4. Weight Loss

    Volunteers will attend the Nutritional Intervention unit (University of Navarra), where their weight will be measured to the nearest 0.1 kg.

    Measured: week 6

  5. Weight Loss

    Volunteers will attend the Nutritional Intervention unit (University of Navarra), where their weight will be measured to the nearest 0.1 kg.

    Measured: Week 8

  6. Weight Loss

    Volunteers will attend the Nutritional Intervention unit (University of Navarra), where their weight will be measured to the nearest 0.1 kg.

    Measured: Week 10 (end of treatment)

  7. Body composition and Anthropometric parameters

    Changes in body composition will be analyzed by Dual X-ray Absorptiometry (DXA) and by bioimpedance, and hip and waist circumferences will be measured.

    Measured: Week 0 (Baseline)

  8. Body composition and anthropometric parameters

    Changes in body composition will be analyzed by Dual X-ray Absorptiometry (DXA) and by bioimpedance, and hip and waist circumferences will be measured.

    Measured: Week 10 (end of treatment)

  9. Glucose metabolism parameters

    Fasting serum glucose, Fasting serum insulin, Oral Glucose Tolerance Test, HOMA index

    Measured: Week 0 (baseline)

  10. Glucose metabolism parameters

    Fasting serum glucose, Fasting serum insulin, Oral Glucose Tolerance Test, HOMA index

    Measured: Week 10 (end of treatment)

  11. Lipid metabolism biomarkers

    Serum total-cholesterol, HDL-cholesterol, LDL-cholesterol, triacylglycerols, free fatty acids, ketone bodies.

    Measured: Week 0 (baseline)

  12. Lipid metabolism biomarkers

    Serum total-cholesterol, HDL-cholesterol, LDL-cholesterol, triacylglycerols, free fatty acids, ketone bodies.

    Measured: Week 10 (end of treatment)

Secondary outcomes (13)
  1. Blood Pressure and Cardiovascular Risk biomarkers

    Blood pressure, PAI-1 and VEGF will be measured.

    Measured: Baseline

  2. Blood Pressure and Cardiovascular Risk biomarkers

    Blood pressure, PAI-1 and VEGF will be measured.

    Measured: Week 10 (end of treatment)

  3. Energy expenditure

    Energy expenditure will be estimated by indirect calorimetry, and T3, T4 and TSH levels will be analysed by ELISA kits

    Measured: Baseline

  4. Energy expenditure

    Energy expenditure will be estimated by indirect calorimetry, and T3, T4 and TSH levels will be analysed by ELISA kits

    Measured: Week 10 (end of treatment)

  5. Satiety

    Satiety will be estimated by using a VAS questionnaire

    Measured: Baseline

  6. Satiety

    Satiety will be estimated by using a VAS questionnaire

    Measured: Week 10 (end of treatment)

  7. Serum inflammation biomarkers

    TNF-alpha, IL-6, C-reactive protein, serum A-amiloid, Leptin, Adiponectin, Visfatin

    Measured: Baseline

  8. Serum inflammation biomarkers

    TNF-alpha, IL-6, C-reactive protein, serum A-amiloid, Leptin, Adiponectin, Visfatin

    Measured: Week 10 (end of treatment)

  9. Serum oxidative stress biomarkers

    Total and Reduced Glutathione, Glutathione Peroxidase, MDA, Superoxide Dismutase-2 (Mn-SOD).

    Measured: Baseline

  10. Serum oxidative stress biomarkers

    Total and Reduced Glutathione, Glutathione Peroxidase, MDA, Superoxide Dismutase-2 (Mn-SOD).

    Measured: Week 10 (end of treatment)

  11. Adipose tissue gene profile and function analysis

    A biopsy (2 g) of subcutaneous abdominal periumbilical area adipose tissue will be obtained. In order to identify clusters/pathways of genes regulated by the supplementation of EPA and LA, microarray gene profiling will be performed in adipose tissue from the 4 groups after the nutritional intervention. If possible primary explant culture of adipose tissue biopsies will be also carried out.

    Measured: Week 10 (end of treatment)

  12. Metabolomic and lipidomic profile

    Samples of plasma and 24-h urine will be analysed by Ultra Performance Liquid Chromatography-Mass Spectrometry (UPLC-MS), and Nuclear Magnetic Resonance (NMR), and Bidimensional Gas Chromatography-Mass Spectrometry (BC-MS).

    Measured: Baseline

  13. Metabolomic and lipidomic profile

    Samples of plasma and 24-h urine will be analysed by Ultra Performance Liquid Chromatography-Mass Spectrometry (UPLC-MS), and Nuclear Magnetic Resonance (NMR), and Bidimensional Gas Chromatography-Mass Spectrometry (BC-MS).

    Measured: Week 10 (end of treatment)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Jun 2010 (estimated)
  2. Study startJan 2010
  3. Primary completionDec 2011
  4. Study completionDec 2012

Resources

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
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
103 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01138774
Sponsor's protocol ID
OBEPALIP
Acronym
OBEPALIP
Status last verified
Feb 2012
First submitted
21 May 2010
Last updated
28 May 2015
Results posted
No
Data monitoring committee
No

Publications

  • Prieto-Hontoria PL, Perez-Matute P, Fernandez-Galilea M, Barber A, Martinez JA, Moreno-Aliaga MJ. Lipoic acid prevents body weight gain induced by a high fat diet in rats: effects on intestinal sugar transport. J Physiol Biochem. 2009 Mar;65(1):43-50. doi: 10.1007/BF03165968.

    PubMed 19588730
  • Lorente-Cebrian S, Bustos M, Marti A, Martinez JA, Moreno-Aliaga MJ. Eicosapentaenoic acid up-regulates apelin secretion and gene expression in 3T3-L1 adipocytes. Mol Nutr Food Res. 2010 May;54 Suppl 1:S104-11. doi: 10.1002/mnfr.200900522.

    PubMed 20352620
  • Lorente-Cebrian S, Bustos M, Marti A, Martinez JA, Moreno-Aliaga MJ. Eicosapentaenoic acid stimulates AMP-activated protein kinase and increases visfatin secretion in cultured murine adipocytes. Clin Sci (Lond). 2009 Aug 14;117(6):243-9. doi: 10.1042/CS20090020.

    PubMed 19296827
  • Perez-Echarri N, Perez-Matute P, Marcos-Gomez B, Marti A, Martinez JA, Moreno-Aliaga MJ. Down-regulation in muscle and liver lipogenic genes: EPA ethyl ester treatment in lean and overweight (high-fat-fed) rats. J Nutr Biochem. 2009 Sep;20(9):705-14. doi: 10.1016/j.jnutbio.2008.06.013. Epub 2008 Sep 30.

    PubMed 18829285
  • Perez-Echarri N, Perez-Matute P, Marcos-Gomez B, Baena MJ, Marti A, Martinez JA, Moreno-Aliaga MJ. Differential inflammatory status in rats susceptible or resistant to diet-induced obesity: effects of EPA ethyl ester treatment. Eur J Nutr. 2008 Oct;47(7):380-6. doi: 10.1007/s00394-008-0738-3. Epub 2008 Sep 18.

    PubMed 18807107
  • Perez-Echarri N, Perez-Matute P, Marcos-Gomez B, Martinez JA, Moreno-Aliaga MJ. Effects of eicosapentaenoic acid ethyl ester on visfatin and apelin in lean and overweight (cafeteria diet-fed) rats. Br J Nutr. 2009 Apr;101(7):1059-67. doi: 10.1017/S0007114508048307. Epub 2008 Aug 28.

    PubMed 18755047
  • Perez-Matute P, Perez-Echarri N, Martinez JA, Marti A, Moreno-Aliaga MJ. Eicosapentaenoic acid actions on adiposity and insulin resistance in control and high-fat-fed rats: role of apoptosis, adiponectin and tumour necrosis factor-alpha. Br J Nutr. 2007 Feb;97(2):389-98. doi: 10.1017/S0007114507207627.

    PubMed 17298710
  • Marrades MP, Martinez JA, Moreno-Aliaga MJ. Differences in short-term metabolic responses to a lipid load in lean (resistant) vs obese (susceptible) young male subjects with habitual high-fat consumption. Eur J Clin Nutr. 2007 Feb;61(2):166-74. doi: 10.1038/sj.ejcn.1602500. Epub 2006 Aug 9.

    PubMed 16900083
  • Marrades MP, Milagro FI, Martinez JA, Moreno-Aliaga MJ. Differential expression of aquaporin 7 in adipose tissue of lean and obese high fat consumers. Biochem Biophys Res Commun. 2006 Jan 20;339(3):785-9. doi: 10.1016/j.bbrc.2005.11.080. Epub 2005 Nov 22.

    PubMed 16325777
  • Ramel A, Martinez A, Kiely M, Morais G, Bandarra NM, Thorsdottir I. Beneficial effects of long-chain n-3 fatty acids included in an energy-restricted diet on insulin resistance in overweight and obese European young adults. Diabetologia. 2008 Jul;51(7):1261-8. doi: 10.1007/s00125-008-1035-7. Epub 2008 May 20.

    PubMed 18491071
  • Parra D, Ramel A, Bandarra N, Kiely M, Martinez JA, Thorsdottir I. A diet rich in long chain omega-3 fatty acids modulates satiety in overweight and obese volunteers during weight loss. Appetite. 2008 Nov;51(3):676-80. doi: 10.1016/j.appet.2008.06.003. Epub 2008 Jun 14.

    PubMed 18602429
  • Ramel A, Martinez JA, Kiely M, Bandarra NM, Thorsdottir I. Moderate consumption of fatty fish reduces diastolic blood pressure in overweight and obese European young adults during energy restriction. Nutrition. 2010 Feb;26(2):168-74. doi: 10.1016/j.nut.2009.04.002. Epub 2009 May 31.

    PubMed 19487105
  • Navas-Carretero S, Perez-Granados AM, Schoppen S, Vaquero MP. An oily fish diet increases insulin sensitivity compared to a red meat diet in young iron-deficient women. Br J Nutr. 2009 Aug;102(4):546-53. doi: 10.1017/S0007114509220794. Epub 2009 Feb 12.

    PubMed 19210857
  • Romo-Hualde A, Huerta AE, Gonzalez-Navarro CJ, Ramos-Lopez O, Moreno-Aliaga MJ, Martinez JA. Untargeted metabolomic on urine samples after alpha-lipoic acid and/or eicosapentaenoic acid supplementation in healthy overweight/obese women. Lipids Health Dis. 2018 May 9;17(1):103. doi: 10.1186/s12944-018-0750-4.

    PubMed 29743087
  • Huerta AE, Prieto-Hontoria PL, Sainz N, Martinez JA, Moreno-Aliaga MJ. Supplementation with alpha-Lipoic Acid Alone or in Combination with Eicosapentaenoic Acid Modulates the Inflammatory Status of Healthy Overweight or Obese Women Consuming an Energy-Restricted Diet. J Nutr. 2015 Apr 1;146(4):889S-896S. doi: 10.3945/jn.115.224105.

    PubMed 26962183

Questions about this trial

What is this clinical trial studying?

A study testing Double blind dietary intervention with EPA and lipoic acid in people with Obesity and Body Fat, run by Clinica Universidad de Navarra, Universidad de Navarra 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 5 inclusion and 8 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 28 May 2015. 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. Some participants in this study may receive a placebo. 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?

Weight Loss (time frame: Week 0 (baseline)). The study lists 12 primary outcomes in all. 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 NCT01138774, which also lists 15 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 28 May 2015.

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