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I3LTE4: Intensive Insulin Therapy and Production of LTE4 in Patients With Diabetes

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00324792
First Posted: May 11, 2006
Last Update Posted: June 13, 2008
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
University Hospital, Grenoble
  Purpose
The primary objective of the study is to assess the effect of a 3-month intensive insulin therapy on urinary leukotriene E4 (LTE4) excretion in patients with diabetes.

Condition Intervention
Diabetes Mellitus Leucotrienes Drug: intensive insulin therapy

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Effect of an Intensive Insulin Therapy on the Production of LTE4 in Patients With Diabetes

Resource links provided by NLM:


Further study details as provided by University Hospital, Grenoble:

Primary Outcome Measures:
  • changes in urinary LTE4 excretion and HbA1c after 3-month intensive insulin therapy versus baseline

Secondary Outcome Measures:
  • urinary 11-dehydroTXB2
  • hs-CRP
  • fibrinogen
  • sICAM-1 plasma levels

Estimated Enrollment: 45
Study Start Date: May 2006
Study Completion Date: October 2007
Detailed Description:

Our group has recently reported the results of a preliminary cross-sectional study, which demonstrated that the urinary LTE4 excretion is increased in patients with type 1 diabetes. With regard to recent human genetic studies showing that polymorphisms in the 5-lipoxygenase (5-LO) promoter and FLAP haplotypes is linked to cardiovascular disease susceptibility our data suggested the potential interest of LTE4 as a non-invasive biomarker of cardiovascular risk. In diabetes mellitus, further studies are required to evaluate the 5-LO pathway after improvement of glucose control and concomitantly with established inflammatory cardiovascular biomarkers.

The secondary objectives are:

Before and after 3-month intensive insulin therapy- Relationship between a marker of platelet activation (urinary 11-dehydro-thromboxan B2 :11-dehydroTXB2) and urinary LTE4- Relationship between inflammatory plasma markers of cardiovascular risk (hs-CRP and fibrinogen) and urinary LTE4- Relationship between a plasma marker of endothelial dysfunction (sICAM-1) and urinary LTE4- Changes in LTE4 according to patient subgroups (patients with type 1 and type 2 diabetes mellitus)

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • diabetes mellitus (type 1 or type 2)
  • > 18 year-old
  • subject has given free, informed written consent
  • subject entitled to health insurance cover
  • medical follow-up at the department of Diabetology, Grenoble University Hospital
  • inappropriate glucose control (HbA1c > 8.5%) requiring an initiation, or revision, of insulin therapy

Exclusion Criteria:

  • legal incapacity or limited legal competence
  • pregnant women
  • heart failure
  • impaired renal function,defined by a creatinin clearance < 60 ml/mn according to Cockroft formula
  • asthma
  • respiratory failure
  • IV, IM, SC or oral treatment with cortico-steroids for the last 2 months prior to baseline
  • current smoking > cigarettes / day
  • any infectious disease for the last 2 months prior to baseline
  • baseline CRP > 20 mg/l
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00324792


Locations
France
Département d'urologie, néphrologie et endocrinologie-University Hospital of Grenoble
Grenoble, France, 38043
Sponsors and Collaborators
University Hospital, Grenoble
Investigators
Principal Investigator: Robert Boizel, Dr University Hospital, Grenoble
  More Information

Publications:
Hardy G, Boizel R, Bessard J, Cracowski JL, Bessard G, Halimi S, Stanke-Labesque F. Urinary leukotriene E4 excretion is increased in type 1 diabetic patients: a quantification by liquid chromatography-tandem mass spectrometry. Prostaglandins Other Lipid Mediat. 2005 Dec;78(1-4):291-9. Epub 2005 Nov 2.
Hardy G, Vergnaud S, Lunardi J, Peoc'h M, Bessard G, Stanke-Labesque F. 5-lipoxygenase expression and activity in aorta from streptozotocin-induced diabetic rats. Prostaglandins Other Lipid Mediat. 2005 Jan;75(1-4):91-103.
Cipollone F, Mezzetti A, Fazia ML, Cuccurullo C, Iezzi A, Ucchino S, Spigonardo F, Bucci M, Cuccurullo F, Prescott SM, Stafforini DM. Association between 5-lipoxygenase expression and plaque instability in humans. Arterioscler Thromb Vasc Biol. 2005 Aug;25(8):1665-70. Epub 2005 Jun 2.
Dwyer JH, Allayee H, Dwyer KM, Fan J, Wu H, Mar R, Lusis AJ, Mehrabian M. Arachidonate 5-lipoxygenase promoter genotype, dietary arachidonic acid, and atherosclerosis. N Engl J Med. 2004 Jan 1;350(1):29-37.
Helgadottir A, Manolescu A, Thorleifsson G, Gretarsdottir S, Jonsdottir H, Thorsteinsdottir U, Samani NJ, Gudmundsson G, Grant SF, Thorgeirsson G, Sveinbjornsdottir S, Valdimarsson EM, Matthiasson SE, Johannsson H, Gudmundsdottir O, Gurney ME, Sainz J, Thorhallsdottir M, Andresdottir M, Frigge ML, Topol EJ, Kong A, Gudnason V, Hakonarson H, Gulcher JR, Stefansson K. The gene encoding 5-lipoxygenase activating protein confers risk of myocardial infarction and stroke. Nat Genet. 2004 Mar;36(3):233-9. Epub 2004 Feb 8.

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
ClinicalTrials.gov Identifier: NCT00324792     History of Changes
Other Study ID Numbers: DCIC 05 54
First Submitted: May 10, 2006
First Posted: May 11, 2006
Last Update Posted: June 13, 2008
Last Verified: June 2008

Additional relevant MeSH terms:
Diabetes Mellitus
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Insulin, Globin Zinc
Insulin
Hypoglycemic Agents
Physiological Effects of Drugs


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