Effect of an Extract of Green Tea on Adults With Type 2 Diabetes
NCT ID: NCT00389350
Last Updated: 2023-10-13
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE2/PHASE3
48 participants
INTERVENTIONAL
2005-08-31
2006-06-30
Brief Summary
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Detailed Description
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Objective: We evaluated the ability of an extract of green and black tea to improve glucose control over a three month period using a double blinded randomized multiple dose (either placebo, 375mg or 750mg) study in adults in with Type 2 Diabetes.
Patients: The 49 subjects who completed this study were predominantly whites with an average age of 65, a median duration of Diabetes of 6 years, and 80% reported using hypoglycemic medication.
Measurements: HbA1c at three months was the primary endpoint. Results: After three months the mean changes in HbA1c were +0.4, +0.3 and +0.5, in the placebo, 375mg and 750mg arms, respectively. The changes were not significantly different between study arms.
Limitations: Evaluation of a particular extract that contained components of black teas as well as green tea. Power insufficient to detect changes in HbA1c \< 0.5.
Conclusions: We did not find a hypoglycemic effect of extract of green tea in adults with Type 2 Diabetes, but cannot rule out the possibility that tea may have a small beneficial effect.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Interventions
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Extract of Green and Black Tea
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
90 Years
ALL
No
Sponsors
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Dartmouth-Hitchcock Medical Center
OTHER
Responsible Party
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Todd MacKenzie
Principle Investigator, Professor, Data Science
Principal Investigators
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Todd A MacKenzie, PhD
Role: PRINCIPAL_INVESTIGATOR
Dartmouth-Hitchcock Medical Center
Locations
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Dartmouth-Hitchcock Medical Center
Lebanon, New Hampshire, United States
Countries
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Other Identifiers
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Hitchcock Tea 1
Identifier Type: -
Identifier Source: org_study_id
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