NCT01363791

Brief Summary

Diabetes and heart associations continue to discourage high intakes of dietary fructose, a constituent part of the sucrose molecule that is found in fruits and vegetables as a natural sugar and in some processed foods and beverages as an added sweetener. The concern relates to its ability to increase certain blood fats and cholesterol, which increase the risk of cardiovascular disease. The evidence for an adverse effect of fructose on these risk factors, however, is inconclusive. To improve the evidence on which nutrition recommendations for fructose are based, the investigators therefore propose to study the effect of fructose on blood fats, cholesterol, sugars, blood pressure, and body weight, by undertaking a systematic synthesis of the data taken from all available clinical studies in humans. This technique has the strength of allowing all of the available data to be pooled together and differences to be explored in groups of different study participants (healthy humans of different sex, weight, and age and in those with diseases which predispose to disturbances in metabolism, such as diabetes) with dietary fructose in different forms, doses, and with differing durations of exposure. The findings generated by this proposed knowledge synthesis will help improve the health of consumers through informing recommendations for the general public, as well as those at risk of diabetes and cardiovascular disease.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2009

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

May 1, 2009

Completed
2.1 years until next milestone

First Submitted

Initial submission to the registry

May 25, 2011

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 2, 2011

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2014

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2016

Completed
Last Updated

May 27, 2015

Status Verified

May 1, 2015

Enrollment Period

4.8 years

First QC Date

May 25, 2011

Last Update Submit

May 26, 2015

Conditions

Keywords

Systematic review and meta-analysisEvidence-based medicine (EBM)Evidence-based nutrition (EBN)Clinical practice guidelinesClinical trialsDietary sugarsFructoseHigh fructose corn syrupFruitIsocaloricHypercaloricCardiometabolic risk factorsTriglyceridesCholesterolGlycemic controlInsulin resistanceBody weightUric acidBlood pressureFatty liverFastingPostprandial

Outcome Measures

Primary Outcomes (7)

  • Lipid Analysis

    Analyses: 1. Fasting lipids (triglycerides, HDL-cholesterol \[C\], LDL-C, apo-B, total-C:HDL-C ratio, apo-B:apo-A1 ratio, non-HDL-C) 2. Postprandial lipids (peak, mean, and area under the curve \[AUC\] triglycerides)

    June 2012

  • Body Weight Analysis

    Analyses: 1\. Body weight

    November 2011

  • Glycemic Control Analysis

    Analyses: 1. Glycated blood proteins (HbA1c, fructosamine, glycated albumin), glucose, and insulin in people with diabetes 2. Glycated blood proteins (HbA1c, fructosamine, glycated albumin), glucose, and insulin in people without diabetes 3. Insulin sensitivity (Euglycemic-hyperinsulinemic clamp, frequent sampling intravenous glucose tolerance test \[FSIGT\], Homeostasis model assessment of insulin resistance \[HOMA-IR\], oral glucose tolerance test insulin sensitivity index \[OGTT-ISI\])

    June 2012

  • Blood Pressure (BP) Analysis

    Analyses: 1\. Systolic BP, diastolic BP, and mean arterial pressure (MAP)

    January 2012

  • Uric Acid Analysis

    Analyses: 1\. uric acid

    February 2012

  • "Catalytic" Fructose Across Cardiometabolic Endpoints Analysis

    Analyses: 1\. Lipids, glycemic control, body weight, blood pressure, and uric acid

    January 2012

  • Non-Alcoholic Fatty Liver (NAFL) Analysis

    Analyses: 1\. Imaging and spectroscopy endpoints of liver fat (Liver ultrasound \[US\], computed tomography \[CT\], magnetic resonance imaging \[MRI\], or magnetic resonance spectroscopy \[MRS\]) and biomarkers of hepatocellular injury (transaminases \[ALT, AST, GGT\])

    June 2012

Interventions

Oral dietary fructose in free (unbound) form in isocaloric exchange for other non-fructose carbohydrate sources (isocaloric trials) or added to a control diet as a source of excess energy (hypercaloric trials).

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Varied.

You may qualify if:

  • Trials in humans
  • Oral fructose intervention
  • Suitable control (i.e. another carbohydrate source in isocaloric exchange for fructose or a control diet which is compared with the same diet supplemented with excess energy from fructose)
  • \>= 7-days diet duration
  • Viable endpoint data

You may not qualify if:

  • Non-human studies
  • IV or parenteral fructose
  • High fructose corn syrup or sucrose intervention (except where these are the comparators)
  • Lack of a suitable control
  • \< 7-days diet duration.
  • No viable endpoint data

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Toronto 3D (Diet, Digestive tract and Disease) Knowledge Synthesis and Clinical Trials Unit, Clinical Nutrition and Risk Factor Modification Centre, St. Micheal's Hospital

Toronto, Ontario, M5C 2N8, Canada

Location

Related Publications (13)

  • Sievenpiper JL, Carleton AJ, Chatha S, Jiang HY, de Souza RJ, Beyene J, Kendall CW, Jenkins DJ. Heterogeneous effects of fructose on blood lipids in individuals with type 2 diabetes: systematic review and meta-analysis of experimental trials in humans. Diabetes Care. 2009 Oct;32(10):1930-7. doi: 10.2337/dc09-0619. Epub 2009 Jul 10.

    PMID: 19592634BACKGROUND
  • Ha V, Sievenpiper JL, de Souza RJ, Chiavaroli L, Wang DD, Cozma AI, Mirrahimi A, Yu ME, Carleton AJ, Dibuono M, Jenkins AL, Leiter LA, Wolever TM, Beyene J, Kendall CW, Jenkins DJ. Effect of fructose on blood pressure: a systematic review and meta-analysis of controlled feeding trials. Hypertension. 2012 Apr;59(4):787-95. doi: 10.1161/HYPERTENSIONAHA.111.182311. Epub 2012 Feb 13.

  • Sievenpiper JL, de Souza RJ, Mirrahimi A, Yu ME, Carleton AJ, Beyene J, Chiavaroli L, Di Buono M, Jenkins AL, Leiter LA, Wolever TM, Kendall CW, Jenkins DJ. Effect of fructose on body weight in controlled feeding trials: a systematic review and meta-analysis. Ann Intern Med. 2012 Feb 21;156(4):291-304. doi: 10.7326/0003-4819-156-4-201202210-00007.

  • Wang DD, Sievenpiper JL, de Souza RJ, Chiavaroli L, Ha V, Cozma AI, Mirrahimi A, Yu ME, Carleton AJ, Di Buono M, Jenkins AL, Leiter LA, Wolever TM, Beyene J, Kendall CW, Jenkins DJ. The effects of fructose intake on serum uric acid vary among controlled dietary trials. J Nutr. 2012 May;142(5):916-23. doi: 10.3945/jn.111.151951. Epub 2012 Mar 28.

  • Sievenpiper JL, Chiavaroli L, de Souza RJ, Mirrahimi A, Cozma AI, Ha V, Wang DD, Yu ME, Carleton AJ, Beyene J, Di Buono M, Jenkins AL, Leiter LA, Wolever TM, Kendall CW, Jenkins DJ. 'Catalytic' doses of fructose may benefit glycaemic control without harming cardiometabolic risk factors: a small meta-analysis of randomised controlled feeding trials. Br J Nutr. 2012 Aug;108(3):418-23. doi: 10.1017/S000711451200013X. Epub 2012 Feb 21.

  • Sievenpiper JL, de Souza RJ, Jenkins DJ. Sugar: fruit fructose is still healthy. Nature. 2012 Feb 22;482(7386):470. doi: 10.1038/482470e. No abstract available.

  • Sievenpiper JL, de Souza RJ, Kendall CW, Jenkins DJ. Is fructose a story of mice but not men? J Am Diet Assoc. 2011 Feb;111(2):219-20; author reply 220-2. doi: 10.1016/j.jada.2010.12.001. No abstract available.

  • David Wang D, Sievenpiper JL, de Souza RJ, Cozma AI, Chiavaroli L, Ha V, Mirrahimi A, Carleton AJ, Di Buono M, Jenkins AL, Leiter LA, Wolever TM, Beyene J, Kendall CW, Jenkins DJ. Effect of fructose on postprandial triglycerides: a systematic review and meta-analysis of controlled feeding trials. Atherosclerosis. 2014 Jan;232(1):125-33. doi: 10.1016/j.atherosclerosis.2013.10.019. Epub 2013 Nov 2.

  • Sievenpiper JL, de Souza RJ, Cozma AI, Chiavaroli L, Ha V, Mirrahimi A. Fructose vs. glucose and metabolism: do the metabolic differences matter? Curr Opin Lipidol. 2014 Feb;25(1):8-19. doi: 10.1097/MOL.0000000000000042.

  • Sievenpiper JL; Toronto 3D (Diet, Digestive Tract, and Disease) Knowledge Synthesis and Clinical Trials Unit. Fructose: where does the truth lie? J Am Coll Nutr. 2012 Jun;31(3):149-51. doi: 10.1080/07315724.2012.10720021. No abstract available.

  • Chiavaroli L, Ha V, de Souza RJ, Kendall CW, Sievenpiper JL. Re. "Association of fructose consumption and components of metabolic syndrome in human studies: a systematic review and meta-analysis". Nutrition. 2015 Feb;31(2):419-20. doi: 10.1016/j.nut.2014.07.018. Epub 2014 Aug 8. No abstract available.

  • Chiavaroli L, de Souza RJ, Ha V, Cozma AI, Mirrahimi A, Wang DD, Yu M, Carleton AJ, Di Buono M, Jenkins AL, Leiter LA, Wolever TM, Beyene J, Kendall CW, Jenkins DJ, Sievenpiper JL. Effect of Fructose on Established Lipid Targets: A Systematic Review and Meta-Analysis of Controlled Feeding Trials. J Am Heart Assoc. 2015 Sep 10;4(9):e001700. doi: 10.1161/JAHA.114.001700.

  • Cozma AI, Sievenpiper JL, de Souza RJ, Chiavaroli L, Ha V, Wang DD, Mirrahimi A, Yu ME, Carleton AJ, Di Buono M, Jenkins AL, Leiter LA, Wolever TM, Beyene J, Kendall CW, Jenkins DJ. Effect of fructose on glycemic control in diabetes: a systematic review and meta-analysis of controlled feeding trials. Diabetes Care. 2012 Jul;35(7):1611-20. doi: 10.2337/dc12-0073.

MeSH Terms

Conditions

DyslipidemiasDiabetes MellitusPrediabetic StateOverweightObesityGoutHypertensionNon-alcoholic Fatty Liver DiseaseMetabolic SyndromeCardiovascular DiseasesInsulin ResistanceBody WeightFatty LiverFasting

Condition Hierarchy (Ancestors)

Lipid Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesGlucose Metabolism DisordersEndocrine System DiseasesOvernutritionNutrition DisordersSigns and SymptomsPathological Conditions, Signs and SymptomsArthritisJoint DiseasesMusculoskeletal DiseasesCrystal ArthropathiesRheumatic DiseasesPurine-Pyrimidine Metabolism, Inborn ErrorsMetabolism, Inborn ErrorsGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesVascular DiseasesLiver DiseasesDigestive System DiseasesHyperinsulinismFeeding BehaviorBehavior

Study Officials

  • John L Sievenpiper, MD, PhD

    Department of Pathology and Molecular Medicine, McMaster University and Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital

    STUDY DIRECTOR
  • David JA Jenkins, MD, PhD, DSc

    Department of Nutritional Sciences and Medicine, University of Toronto and Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Adjunct Research Fellow

Study Record Dates

First Submitted

May 25, 2011

First Posted

June 2, 2011

Study Start

May 1, 2009

Primary Completion

March 1, 2014

Study Completion

March 1, 2016

Last Updated

May 27, 2015

Record last verified: 2015-05

Locations