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Ginkgo Biloba Extract and the Insulin Resistance Syndrome

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.
 
ClinicalTrials.gov Identifier: NCT00032474
Recruitment Status : Completed
First Posted : March 22, 2002
Last Update Posted : August 18, 2006
Sponsor:
Information provided by:
National Center for Complementary and Integrative Health (NCCIH)

Tracking Information
First Submitted Date  ICMJE March 21, 2002
First Posted Date  ICMJE March 22, 2002
Last Update Posted Date August 18, 2006
Study Start Date  ICMJE December 2001
Primary Completion Date Not Provided
Current Primary Outcome Measures  ICMJE Not Provided
Original Primary Outcome Measures  ICMJE Not Provided
Change History
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Ginkgo Biloba Extract and the Insulin Resistance Syndrome
Official Title  ICMJE Ginkgo Biloba Extract and the Insulin Resistance Syndrome
Brief Summary The purpose of this study is to examine whether the ingestion of the herbal dietary supplement Ginkgo biloba extract has any effect on the efficacy of three classes of diabetic medications - (Glucotrol, Glucophage and Actose). Additionally, the study will examine the effect of Ginkgo biloba extract on pancreatic insulin production in non-diabetic subjects between the ages of 20 and 75 years old.
Detailed Description Herbal remedy is popular among those with chronic diseases, who may already be taking several prescription medications, thereby increasing the risk of drug-herb interactions. Ginkgo biloba extract is a popular dietary supplement that is ingested by the general population to enhance mental focus and by the elderly to delay onset of age-acquired loss of cognitive function. In subjects with non-insulin dependent diabetes (NIDDM), ingestion of Ginkgo biloba may decrease efficacy of the hypoglycemic agents and increase whole body insulin resistance. Because aging is a significant risk factor for the development of NIDDM as a result of a progressive decline in pancreatic function, and because the elderly chronically take multiple prescription medications, the increased use of Ginkgo biloba in this population may increase drug-herb interactions. Therefore, we shall examine the effect of Ginkgo biloba on the pancreatic function in the elderly to determine whether it may produce pancreatic dysfunction and a potential for the development of insulinopenia. The results of this study should provide valuable information for designing new therapeutic strategies for the treatment of diseases in the insulin resistance syndrome.
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 1
Phase 2
Study Design  ICMJE Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double
Primary Purpose: Treatment
Condition  ICMJE Type 2 Diabetes Mellitus
Intervention  ICMJE Drug: Ginkgo biloba extract
Study Arms  ICMJE Not Provided
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Enrollment  ICMJE
 (submitted: June¬†23,¬†2005)
150
Original Enrollment  ICMJE Same as current
Study Completion Date  ICMJE May 2005
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Clinical diagnosis of type 2 diabetes mellitus and taking oral diabetes medications - Glucotrol, Glucophage and Actose or Avandia
  • Must be able to swallow
  • Healthy individuals without diabetes aged 20 to 80 years of age

Exclusion Criteria:

  • Type 1 diabetes mellitus
  • Type 2 diabetes mellitus taking insulin injections
  • Regular use of anti-inflammatory drugs
  • Chronic anemia
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 20 Years to 80 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT00032474
Other Study ID Numbers  ICMJE R01AT000832-01( U.S. NIH Grant/Contract )
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Not Provided
Study Sponsor  ICMJE National Center for Complementary and Integrative Health (NCCIH)
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Principal Investigator: George B. Kudolo, PhD The University of Texas Health Science Center at San Antonio
PRS Account National Center for Complementary and Integrative Health (NCCIH)
Verification Date July 2006

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP