NCT04894318

Brief Summary

The aim of this study is to compare LDL sub-group concentration before and after a diet with low-fat and low-cholesterol prescribed to dyslipidemic patients for 12 weeks.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
47

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2017

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

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

September 5, 2017

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 5, 2018

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 25, 2019

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

May 5, 2021

Completed
15 days until next milestone

First Posted

Study publicly available on registry

May 20, 2021

Completed
Last Updated

May 20, 2021

Status Verified

May 1, 2021

Enrollment Period

1 year

First QC Date

May 5, 2021

Last Update Submit

May 15, 2021

Conditions

Keywords

Dyslipidemia, Low-Fat Low-Cholesterol Diet, LDL Sub-groups

Outcome Measures

Primary Outcomes (1)

  • Change in Baseline LDL subgroups at 12 weeks

    LDL subgroups were measured in serum samples using a Lipoprint System (Quantimetrix Inc., Redondo Beach, CA, USA). This system separates lipoproteins in a non-denaturing gel gradient of polyacrylamide based on net surface charge and size. The dye binds proportionally to the relative amount of cholesterol in each lipoprotein. After the electrophoresis, densitometric analyzes and proportional concentrations of lipoprotein classes and subclasses were calculated on the Lipoware software. In this system, VLDL, IDL corresponding to 3 midbands (Mid A, B, C) and 7 LDL subgroups: LDL-1 to -2 (large, bouyant, pattern A); LDL-3 to -7 (small, dense; pattern B). The system also gives the average LDL particle size. Type A if particle size was ≥268Â, medium level if particle size was 265-268Â, type B if particle size was ≤265Â

    Baseline and 12 weeks

Secondary Outcomes (15)

  • Change in Baseline body weight at 12 weeks

    Baseline and 12 weeks

  • Change in Baseline height at 12 weeks

    Baseline and 12 weeks

  • Change in Baseline Body mass index (BMI) at 12 weeks

    Baseline and 12 weeks

  • Change in Baseline waist circumference at 12 weeks

    Baseline and 12 weeks

  • Change in Baseline waist-to-height ratio at 12 weeks

    Baseline and 12 weeks

  • +10 more secondary outcomes

Study Arms (1)

Low-fat, low-cholesterol diet

OTHER

Patients diagnosed with dyslipidemia by the endocrinologist were followed up for 12 weeks with a low-fat, low-cholesterol diet on a monthly basis, provided that they were suitable for each.

Behavioral: Low-fat and low-cholesterol diet

Interventions

Low-fat (\<30% of total energy) and low-cholesterol (\<200mg/day) diet total of 12 weeks

Low-fat, low-cholesterol diet

Eligibility Criteria

Age25 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being diagnosed with dyslipidemia by an endocrinologist
  • Those who do not have a history of diabetes, hyperthyroidism, hypothyroidism (including those who have hypothyroidism but receive replacement therapy)
  • years
  • Body Mass Index (BMI) = 25-40 kg/m²
  • Smoking three or less than three cigarettes a day
  • Not using herbal supplements.
  • Not being in pregnancy or lactation period
  • Volunteering to participate in the study

You may not qualify if:

  • Not being diagnosed with dyslipidemia
  • Using a drug that affects the lipid profile
  • Not being in the age range of 25-65
  • BMI = 25-40 kg/m² not
  • Smoking more than three cigarettes a day
  • Using herbal supplements
  • Being in the pregnancy or lactation period
  • Not willing to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Erciyes University

Kayseri, Melikgazi, 38039, Turkey (Türkiye)

Location

Related Publications (33)

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  • Mahley RW, Pepin J, Palaoglu KE, Malloy MJ, Kane JP, Bersot TP. Low levels of high density lipoproteins in Turks, a population with elevated hepatic lipase. High density lipoprotein characterization and gender-specific effects of apolipoprotein e genotype. J Lipid Res. 2000 Aug;41(8):1290-301.

  • Bedard A, Corneau L, Lamarche B, Dodin S, Lemieux S. Sex Differences in the Impact of the Mediterranean Diet on LDL Particle Size Distribution and Oxidation. Nutrients. 2015 May 15;7(5):3705-23. doi: 10.3390/nu7053705.

  • El Harchaoui K, van der Steeg WA, Stroes ES, Kuivenhoven JA, Otvos JD, Wareham NJ, Hutten BA, Kastelein JJ, Khaw KT, Boekholdt SM. Value of low-density lipoprotein particle number and size as predictors of coronary artery disease in apparently healthy men and women: the EPIC-Norfolk Prospective Population Study. J Am Coll Cardiol. 2007 Feb 6;49(5):547-53. doi: 10.1016/j.jacc.2006.09.043. Epub 2007 Jan 22.

  • Ai M, Otokozawa S, Asztalos BF, Ito Y, Nakajima K, White CC, Cupples LA, Wilson PW, Schaefer EJ. Small dense LDL cholesterol and coronary heart disease: results from the Framingham Offspring Study. Clin Chem. 2010 Jun;56(6):967-76. doi: 10.1373/clinchem.2009.137489. Epub 2010 Apr 29.

  • Gerber PA, Nikolic D, Rizzo M. Small, dense LDL: an update. Curr Opin Cardiol. 2017 Jul;32(4):454-459. doi: 10.1097/HCO.0000000000000410.

  • Feingold KR. Introduction to Lipids and Lipoproteins. 2024 Jan 14. In: Feingold KR, Adler RA, Ahmed SF, Anawalt B, Blackman MR, Chrousos G, Corpas E, de Herder WW, Dhatariya K, Dungan K, Hamilton E, Hofland J, Jan de Beur S, Kalra S, Kaltsas G, Kapoor N, Kim M, Koch C, Kopp P, Korbonits M, Kovacs CS, Kuohung W, Laferrere B, Levy M, McGee EA, McLachlan R, Muzumdar R, Purnell J, Rey R, Sahay R, Shah AS, Sperling MA, Stratakis CA, Trence DL, Wilson DP, editors. Endotext [Internet]. South Dartmouth (MA): MDText.com, Inc.; 2000-. Available from http://www.ncbi.nlm.nih.gov/books/NBK305896/

  • Ivanova EA, Myasoedova VA, Melnichenko AA, Grechko AV, Orekhov AN. Small Dense Low-Density Lipoprotein as Biomarker for Atherosclerotic Diseases. Oxid Med Cell Longev. 2017;2017:1273042. doi: 10.1155/2017/1273042. Epub 2017 May 7.

  • Guay V, Lamarche B, Charest A, Tremblay AJ, Couture P. Effect of short-term low- and high-fat diets on low-density lipoprotein particle size in normolipidemic subjects. Metabolism. 2012 Jan;61(1):76-83. doi: 10.1016/j.metabol.2011.06.002. Epub 2011 Aug 3.

  • Authors/Task Force Members; ESC Committee for Practice Guidelines (CPG); ESC National Cardiac Societies. 2019 ESC/EAS guidelines for the management of dyslipidaemias: Lipid modification to reduce cardiovascular risk. Atherosclerosis. 2019 Nov;290:140-205. doi: 10.1016/j.atherosclerosis.2019.08.014. Epub 2019 Aug 31. No abstract available.

  • Schwingshackl L, Hoffmann G. Comparison of effects of long-term low-fat vs high-fat diets on blood lipid levels in overweight or obese patients: a systematic review and meta-analysis. J Acad Nutr Diet. 2013 Dec;113(12):1640-61. doi: 10.1016/j.jand.2013.07.010. Epub 2013 Oct 17.

  • Wu L, Ma D, Walton-Moss B, He Z. Effects of low-fat diet on serum lipids in premenopausal and postmenopausal women: a meta-analysis of randomized controlled trials. Menopause. 2014 Jan;21(1):89-99. doi: 10.1097/GME.0b013e318291f5c2.

  • Lee PH, Macfarlane DJ, Lam TH, Stewart SM. Validity of the International Physical Activity Questionnaire Short Form (IPAQ-SF): a systematic review. Int J Behav Nutr Phys Act. 2011 Oct 21;8:115. doi: 10.1186/1479-5868-8-115.

  • Zen V, Fuchs FD, Wainstein MV, Goncalves SC, Biavatti K, Riedner CE, Fuchs FC, Wainstein RV, Rhoden EL, Ribeiro JP, Fuchs SC. Neck circumference and central obesity are independent predictors of coronary artery disease in patients undergoing coronary angiography. Am J Cardiovasc Dis. 2012;2(4):323-30. Epub 2012 Oct 25.

  • Hoefner DM, Hodel SD, O'Brien JF, Branum EL, Sun D, Meissner I, McConnell JP. Development of a rapid, quantitative method for LDL subfractionation with use of the Quantimetrix Lipoprint LDL System. Clin Chem. 2001 Feb;47(2):266-74.

  • Kostis JB. The importance of managing hypertension and dyslipidemia to decrease cardiovascular disease. Cardiovasc Drugs Ther. 2007 Aug;21(4):297-309. doi: 10.1007/s10557-007-6032-4.

  • Aoki T, Yagi H, Sumino H, Tsunekawa K, Araki O, Kimura T, Nara M, Ogiwara T, Nakajima K, Murakami M. Relationship between carotid artery intima-media thickness and small dense low-density lipoprotein cholesterol concentrations measured by homogenous assay in Japanese subjects. Clin Chim Acta. 2015 Mar 10;442:110-4. doi: 10.1016/j.cca.2015.01.010. Epub 2015 Jan 17.

  • Taylan E, Tuncel EP. Distribution of LDL subgroups in patients with hyperlipidemia. Turk J Med Sci. 2016 Feb 17;46(2):374-80. doi: 10.3906/sag-1410-40.

  • Jacobson TA, Maki KC, Orringer CE, Jones PH, Kris-Etherton P, Sikand G, La Forge R, Daniels SR, Wilson DP, Morris PB, Wild RA, Grundy SM, Daviglus M, Ferdinand KC, Vijayaraghavan K, Deedwania PC, Aberg JA, Liao KP, McKenney JM, Ross JL, Braun LT, Ito MK, Bays HE, Brown WV, Underberg JA; NLA Expert Panel. National Lipid Association Recommendations for Patient-Centered Management of Dyslipidemia: Part 2. J Clin Lipidol. 2015 Nov-Dec;9(6 Suppl):S1-122.e1. doi: 10.1016/j.jacl.2015.09.002. Epub 2015 Sep 18.

  • Zhu Z, Wu F, Lu Y, Wang Z, Zang J, Yu H, Guo C, Jia X, Shen X, Ding G. The Association of Dietary Cholesterol and Fatty Acids with Dyslipidemia in Chinese Metropolitan Men and Women. Nutrients. 2018 Jul 25;10(8):961. doi: 10.3390/nu10080961.

  • Ensign W, Hill N, Heward CB. Disparate LDL phenotypic classification among 4 different methods assessing LDL particle characteristics. Clin Chem. 2006 Sep;52(9):1722-7. doi: 10.1373/clinchem.2005.059949. Epub 2006 Jun 1.

  • Ohmura H, Mokuno H, Sawano M, Hatsumi C, Mitsugi Y, Watanabe Y, Daida H, Yamaguchi H. Lipid compositional differences of small, dense low-density lipoprotein particle influence its oxidative susceptibility: possible implication of increased risk of coronary artery disease in subjects with phenotype B. Metabolism. 2002 Sep;51(9):1081-7. doi: 10.1053/meta.2002.34695.

  • Chiu S, Williams PT, Krauss RM. Effects of a very high saturated fat diet on LDL particles in adults with atherogenic dyslipidemia: A randomized controlled trial. PLoS One. 2017 Feb 6;12(2):e0170664. doi: 10.1371/journal.pone.0170664. eCollection 2017.

  • Hosaka S, Okada Y, Maruyama K, Maruyama D. Increased intima-media thickness of the carotid artery in Japanese female type 2 diabetic patients with 'midband lipoprotein'. Diabetes Res Clin Pract. 2007 Mar;75(3):333-8. doi: 10.1016/j.diabres.2006.07.032. Epub 2006 Sep 8.

  • Srisawasdi P, Vanavanan S, Rochanawutanon M, Pornsuriyasak P, Tantrakul V, Kruthkul K, Kotani K. Heterogeneous properties of intermediate- and low-density lipoprotein subpopulations. Clin Biochem. 2013 Oct;46(15):1509-15. doi: 10.1016/j.clinbiochem.2013.06.021. Epub 2013 Jul 2.

  • Klop B, Elte JW, Cabezas MC. Dyslipidemia in obesity: mechanisms and potential targets. Nutrients. 2013 Apr 12;5(4):1218-40. doi: 10.3390/nu5041218.

  • Taylor AE, Ebrahim S, Ben-Shlomo Y, Martin RM, Whincup PH, Yarnell JW, Wannamethee SG, Lawlor DA. Comparison of the associations of body mass index and measures of central adiposity and fat mass with coronary heart disease, diabetes, and all-cause mortality: a study using data from 4 UK cohorts. Am J Clin Nutr. 2010 Mar;91(3):547-56. doi: 10.3945/ajcn.2009.28757. Epub 2010 Jan 20.

  • Frimel TN, Sinacore DR, Villareal DT. Exercise attenuates the weight-loss-induced reduction in muscle mass in frail obese older adults. Med Sci Sports Exerc. 2008 Jul;40(7):1213-9. doi: 10.1249/MSS.0b013e31816a85ce.

  • Newman AB, Lee JS, Visser M, Goodpaster BH, Kritchevsky SB, Tylavsky FA, Nevitt M, Harris TB. Weight change and the conservation of lean mass in old age: the Health, Aging and Body Composition Study. Am J Clin Nutr. 2005 Oct;82(4):872-8; quiz 915-6. doi: 10.1093/ajcn/82.4.872.

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  • Pai JK, Manson JE. Acceleration of cardiovascular risk during the late menopausal transition. Menopause. 2013 Jan;20(1):1-2. doi: 10.1097/gme.0b013e318278e9b4. No abstract available.

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Related Links

MeSH Terms

Conditions

Dyslipidemias

Interventions

Diet, Fat-Restricted

Condition Hierarchy (Ancestors)

Lipid Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Diet TherapyNutrition TherapyTherapeuticsDietNutritional Physiological PhenomenaDiet, Food, and NutritionPhysiological Phenomena

Study Officials

  • Ülger Kaçar Mutlutürk, Phd

    TC Erciyes University

    PRINCIPAL INVESTIGATOR
  • Fahri Bayram, Prof.Dr.

    TC Erciyes University

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof.Dr.

Study Record Dates

First Submitted

May 5, 2021

First Posted

May 20, 2021

Study Start

September 5, 2017

Primary Completion

September 5, 2018

Study Completion

July 25, 2019

Last Updated

May 20, 2021

Record last verified: 2021-05

Data Sharing

IPD Sharing
Will share

All off the individual

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
Immediately following publication. No end date
Access Criteria
Anyone who wishes to access the date

Locations