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Is Carotid Intima-media Thickness Affected by A1C Variability?

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: February 12, 2009
Last Update Posted: September 15, 2009
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:
Yonsei University
This study was conducted to evaluate the effect of A1C variability on the progression of carotid artery intima-media thickness in type 2 diabetic patients.

Type 2 Diabetes A1C Variability

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective

Resource links provided by NLM:

Further study details as provided by Yonsei University:


Information from the National Library of Medicine

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Ages Eligible for Study:   34 Years to 79 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
typeII, Fluroscopy in carotid once a year during 2 years.

Inclusion Criteria:

  • type II
  • fluoroscopy in carotid once a year during 2 years

Exclusion Criteria:

  • type 1 diabetes
  • history or clinical evidence of coronary artery disease or cerebral or peripheral vascular disease
  • the presence of albuminuria (defined as 24 hour urine albumin excretion ≥ 30 mg)
  • renal dysfunction (defined as creatinine blood level ≥ 2.0 mg/dL)
  • hepatic dysfunction (defined as alanine aminotransferase and/or aspartate aminotransferase blood level ≥ 3 × upper normal limit)
  • smoking within the past 3 months prior to commencement of the study
  • use of any medication likely to alter IMT such as calcium channel blocker, thiazolidinedione, antiplatelet agent (clopidogrel, cilostazol)
  • use of glucocorticoid
  • pregnancy
  • severe concomitant disease such as cancer
  • infection
  • Cushing's syndrome
  • acromegaly, or any other disorder likely to alter glycemia
  • primary hypercholesterolemia
  • hypothyroidism or hyperthyroidism
  • use of any hormonal drugs
  • alcoholism or drug abuse
  Contacts and Locations
No Contacts or Locations Provided
  More Information

Responsible Party: Ahn, Chul Woo, Gangnam Severance Hospital
ClinicalTrials.gov Identifier: NCT00842972     History of Changes
Other Study ID Numbers: 3-2006-0005
First Submitted: February 11, 2009
First Posted: February 12, 2009
Last Update Posted: September 15, 2009
Last Verified: September 2009