NCT02656940

Brief Summary

The purpose of this study is to determine whether the modulation of dietary lipids are effective in the treatment of obesity and comorbidities.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
32

participants targeted

Target at P25-P50 for not_applicable obesity

Timeline
Completed

Started Feb 2013

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2013

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2014

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2014

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

January 7, 2016

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 15, 2016

Completed
Last Updated

January 15, 2016

Status Verified

January 1, 2016

Enrollment Period

1.2 years

First QC Date

January 7, 2016

Last Update Submit

January 12, 2016

Conditions

Keywords

obesitylipidsenergy expendituregene expression

Outcome Measures

Primary Outcomes (1)

  • Compare the effects of modulation of PUFA and MUFA in energy expenditure of obese women

    The energy expenditure was evaluated by indirect calorimetry (Vmax Encore 29 Systems®)

    Change from baseline energy expenditure at 2 months

Secondary Outcomes (13)

  • Effects of modulation of PUFA and MUFA in body weight of obese women

    Change from baseline loss of body weight at 2 months

  • Effects of modulation of PUFA and MUFA in body composition of obese women

    Change from baseline body composition at 2 months

  • Effects of modulation of PUFA and MUFA in feeding behavior of obese women

    Change from baseline feeding behavior at 2 months

  • Effects of modulation of PUFA and MUFA in gene expression of obese women

    Change from baseline gene expression at 2 months

  • Effects of modulation of PUFA and MUFA in blood glucose of obese women

    Change from baseline blood glucose at 2 months

  • +8 more secondary outcomes

Study Arms (3)

Group 1 - diet rich in n-3 and n-6 PUFA

EXPERIMENTAL

Assigned intervention: The dietary intervention was conducted by 60 days. Were prescribed normocaloric diets with similar macronutrient composition, varying only the type of lipids offered. Group 1 received diet rich in n-3 and n-6 polyunsaturated fatty acids (PUFA). The volunteers were asked to consume daily a mixture of virgin olive oil and soybean oil, totaling 35.2g to 52.8g, and 2 g of fish oil.

Dietary Supplement: Group 1 - diet rich in n-3 and n-6 PUFA

Group 2 - diet rich in MUFA

EXPERIMENTAL

Assigned intervention: The dietary intervention was conducted by 60 days. Were prescribed normocaloric diets with similar macronutrient composition, varying only the type of lipids offered. Group 2 received diet rich in monounsaturated fatty acids (MUFA). The volunteers were asked to consume daily virgin olive oil, totaling 35.2g to 50.6g, and 1 capsule of 1g of soybean oil.

Dietary Supplement: Group 2 - diet rich in MUFA

Group 3 - Placebo group

EXPERIMENTAL

Placebo group was instructed to keep their eating habits and consuming 1 sachet of 2g of soybean oil and 1 capsule of 1g of soybean oil by day.

Dietary Supplement: Group 3 - Placebo group

Interventions

In order to achieve the desired intake of unsaturated FA, the group received individual portions of vegetable oils in the form of sachets, which were consumed for lunch and dinner, besides gelatin capsules, for 60 days.

Group 1 - diet rich in n-3 and n-6 PUFA
Group 2 - diet rich in MUFADIETARY_SUPPLEMENT

In order to achieve the desired intake of unsaturated FA, the group received individual portions of vegetable oils in the form of sachets, which were consumed for lunch and dinner, besides gelatin capsules, for 60 days.

Group 2 - diet rich in MUFA
Group 3 - Placebo groupDIETARY_SUPPLEMENT

Placebo group was instructed to keep their eating habits and consuming placebo for 60 days.

Group 3 - Placebo group

Eligibility Criteria

Age20 Years - 39 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • obesity grades I and II (body mass index between 30 and 39,99 kg/m2);
  • completion of basic education (former 4th primary series).

You may not qualify if:

  • menopausal;
  • weight loss more than three kilograms (3 kg) in the last three months;
  • diagnosis of diabetes mellitus, heart disease, hypertension, nephropathy, liver diseases , thyroid dysfunction; gastrointestinal disorders , acquired immunodeficiency syndrome or cancer;
  • cholecystectomy in the past 12 months and other recent surgeries;
  • pregnancy or lactation;
  • smokers;
  • drugs to lipid-lowering, diabetes, hypertension, depression, or obesity;
  • food history of allergy or intolerance to vegetable oils (olive oil, soy or canola), fish oil, fish and / or seafood.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (17)

  • Ailhaud G, Massiera F, Weill P, Legrand P, Alessandri JM, Guesnet P. Temporal changes in dietary fats: role of n-6 polyunsaturated fatty acids in excessive adipose tissue development and relationship to obesity. Prog Lipid Res. 2006 May;45(3):203-36. doi: 10.1016/j.plipres.2006.01.003. Epub 2006 Feb 10.

    PMID: 16516300BACKGROUND
  • Barson JR, Karatayev O, Gaysinskaya V, Chang GQ, Leibowitz SF. Effect of dietary fatty acid composition on food intake, triglycerides, and hypothalamic peptides. Regul Pept. 2012 Jan 10;173(1-3):13-20. doi: 10.1016/j.regpep.2011.08.012. Epub 2011 Sep 6.

    PMID: 21903140BACKGROUND
  • Bjermo H, Iggman D, Kullberg J, Dahlman I, Johansson L, Persson L, Berglund J, Pulkki K, Basu S, Uusitupa M, Rudling M, Arner P, Cederholm T, Ahlstrom H, Riserus U. Effects of n-6 PUFAs compared with SFAs on liver fat, lipoproteins, and inflammation in abdominal obesity: a randomized controlled trial. Am J Clin Nutr. 2012 May;95(5):1003-12. doi: 10.3945/ajcn.111.030114. Epub 2012 Apr 4.

    PMID: 22492369BACKGROUND
  • Buckley JD, Howe PR. Anti-obesity effects of long-chain omega-3 polyunsaturated fatty acids. Obes Rev. 2009 Nov;10(6):648-59. doi: 10.1111/j.1467-789X.2009.00584.x. Epub 2009 May 12.

    PMID: 19460115BACKGROUND
  • Casas-Agustench P, Lopez-Uriarte P, Bullo M, Ros E, Gomez-Flores A, Salas-Salvado J. Acute effects of three high-fat meals with different fat saturations on energy expenditure, substrate oxidation and satiety. Clin Nutr. 2009 Feb;28(1):39-45. doi: 10.1016/j.clnu.2008.10.008. Epub 2008 Nov 17.

    PMID: 19010571BACKGROUND
  • Clarke SD, Gasperikova D, Nelson C, Lapillonne A, Heird WC. Fatty acid regulation of gene expression: a genomic explanation for the benefits of the mediterranean diet. Ann N Y Acad Sci. 2002 Jun;967:283-98.

    PMID: 12079856BACKGROUND
  • Clevenger HC, Stevenson JL, Cooper JA. Metabolic responses to dietary fatty acids in obese women. Physiol Behav. 2015 Feb;139:73-9. doi: 10.1016/j.physbeh.2014.11.022. Epub 2014 Nov 13.

    PMID: 25446217BACKGROUND
  • DeFina LF, Marcoux LG, Devers SM, Cleaver JP, Willis BL. Effects of omega-3 supplementation in combination with diet and exercise on weight loss and body composition. Am J Clin Nutr. 2011 Feb;93(2):455-62. doi: 10.3945/ajcn.110.002741. Epub 2010 Dec 15.

    PMID: 21159785BACKGROUND
  • Flint A, Helt B, Raben A, Toubro S, Astrup A. Effects of different dietary fat types on postprandial appetite and energy expenditure. Obes Res. 2003 Dec;11(12):1449-55. doi: 10.1038/oby.2003.194.

    PMID: 14694208BACKGROUND
  • Guri AJ, Hontecillas R, Bassaganya-Riera J. Dietary modulators of peroxisome proliferator-activated receptors: implications for the prevention and treatment of metabolic syndrome. J Nutrigenet Nutrigenomics. 2008;1(3):126-35. doi: 10.1159/000112460. Epub 2008 Feb 20.

    PMID: 19776622BACKGROUND
  • Krebs JD, Browning LM, McLean NK, Rothwell JL, Mishra GD, Moore CS, Jebb SA. Additive benefits of long-chain n-3 polyunsaturated fatty acids and weight-loss in the management of cardiovascular disease risk in overweight hyperinsulinaemic women. Int J Obes (Lond). 2006 Oct;30(10):1535-44. doi: 10.1038/sj.ijo.0803309. Epub 2006 Mar 21.

    PMID: 16552404BACKGROUND
  • Krishnan S, Cooper JA. Effect of dietary fatty acid composition on substrate utilization and body weight maintenance in humans. Eur J Nutr. 2014 Apr;53(3):691-710. doi: 10.1007/s00394-013-0638-z. Epub 2013 Dec 22.

    PMID: 24363161BACKGROUND
  • Liao FH, Liou TH, Shieh MJ, Chien YW. Effects of different ratios of monounsaturated and polyunsaturated fatty acids to saturated fatty acids on regulating body fat deposition in hamsters. Nutrition. 2010 Jul-Aug;26(7-8):811-7. doi: 10.1016/j.nut.2009.09.009. Epub 2009 Dec 22.

    PMID: 20022469BACKGROUND
  • Nakamura MT, Yudell BE, Loor JJ. Regulation of energy metabolism by long-chain fatty acids. Prog Lipid Res. 2014 Jan;53:124-44. doi: 10.1016/j.plipres.2013.12.001. Epub 2013 Dec 18.

    PMID: 24362249BACKGROUND
  • Mejia-Barradas CM, Del-Rio-Navarro BE, Dominguez-Lopez A, Campos-Rodriguez R, Martinez-Godinez Md, Rojas-Hernandez S, Lara-Padilla E, Abarca-Rojano E, Miliar-Garcia A. The consumption of n-3 polyunsaturated fatty acids differentially modulates gene expression of peroxisome proliferator-activated receptor alpha and gamma and hypoxia-inducible factor 1 alpha in subcutaneous adipose tissue of obese adolescents. Endocrine. 2014 Feb;45(1):98-105. doi: 10.1007/s12020-013-9941-y. Epub 2013 Apr 2.

    PMID: 23546614BACKGROUND
  • van Dijk SJ, Feskens EJ, Bos MB, Hoelen DW, Heijligenberg R, Bromhaar MG, de Groot LC, de Vries JH, Muller M, Afman LA. A saturated fatty acid-rich diet induces an obesity-linked proinflammatory gene expression profile in adipose tissue of subjects at risk of metabolic syndrome. Am J Clin Nutr. 2009 Dec;90(6):1656-64. doi: 10.3945/ajcn.2009.27792. Epub 2009 Oct 14.

    PMID: 19828712BACKGROUND
  • Lopes MCODS, Kaippert VC, Crovesy L, de Carvalho DP, Rosado EL. Monounsaturated fat-rich diet reduces body adiposity in women with obesity, but does not influence energy expenditure and substrate oxidation: a parallel randomized controlled clinical trial. Eur J Clin Nutr. 2024 Apr;78(4):335-343. doi: 10.1038/s41430-024-01401-3. Epub 2024 Jan 12.

MeSH Terms

Conditions

Obesity

Interventions

Fatty Acids, Monounsaturated

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Fatty Acids, UnsaturatedFatty AcidsLipids

Study Officials

  • Eliane L Rosado, Doctor

    UFRJ

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Doctor

Study Record Dates

First Submitted

January 7, 2016

First Posted

January 15, 2016

Study Start

February 1, 2013

Primary Completion

May 1, 2014

Study Completion

July 1, 2014

Last Updated

January 15, 2016

Record last verified: 2016-01