Status:

COMPLETED

Effects of Black Tea Intake on Serum Lipids

Lead Sponsor:

University of Minnesota

Collaborating Sponsors:

National Center for Research Resources (NCRR)

Conditions:

Hypercholesterolemia

Eligibility:

All Genders

45-65 years

Phase:

NA

Brief Summary

A diet-controlled clinical trial which attempts to provide estimates of the effect of black tea consumption on serum lipids under tightly controlled conditions, including a controlled diet. Mildly hyp...

Eligibility Criteria

Inclusion

  • between 45-65 years old
  • mildly hypercholesterolemic (total cholesterol levels between 4.9 and 6.7 mmol/L, 190 and 260 mg/dl)
  • high-density lipoprotein cholesterol (HDL-C) between 0.9 and 1.6 mmol/L (35 and 65 mg/dl)
  • triglyceride (TG) concentrations below 6.8 mmol/L (600 mg/dl)
  • habitually consumed a typical American diet with low dietary flavonoid intake (\<4 one-half cup servings of fruits and vegetables/day) and low intake (\<1 serving/day) of soy-rich foods, nuts, herbs, and spices (besides salt and pepper)
  • aspartate aminotransferase (AST) between 0 and 55 mg/L
  • creatinine between 70.7 and 150.3 mmol/L (0.8 and 1.7 mg/dl)
  • glucose between 3.3 and 6.4 mmol/L (60 and 115 mg/dl)

Exclusion

  • current smoker
  • usage of high amounts of antioxidant vitamin supplements (\>3 times the Recommended Dietary Allowance (RDA) of vitamins E, C, and selenium, or \>10 mg/day of beta carotene)
  • had been diagnosed with diabetes, coagulation disorders, chronic pulmonary disease, current active malignancy, renal disease requiring dialysis, malabsorption, or gastrointestinal disorders, or had a history of cardiovascular disease.
  • antihypertensive, immunosuppressive, cholesterol lowering, or anticoagulant medications
  • consuming \>3 servings of alcohol daily
  • Pre-menopausal (women)

Key Trial Info

Start Date :

April 1 2002

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

April 1 2004

Estimated Enrollment :

57 Patients enrolled

Trial Details

Trial ID

NCT01882283

Start Date

April 1 2002

End Date

April 1 2004

Last Update

May 7 2019

Active Locations (1)

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1

General Clinical Research Center, University of Minnesota

Minneapolis, Minnesota, United States, 55454