The Effect of Hibiscus Sabdariffa L. Tea on Blood Pressure

This study has been completed.
Sponsor:
Collaborators:
Celestial Seasonings
Tufts Medical Center
Information provided by:
Tufts University
ClinicalTrials.gov Identifier:
NCT00175110
First received: September 12, 2005
Last updated: December 2, 2009
Last verified: December 2009
  Purpose

The goal of this study is to find out whether the plant compounds present in Hibiscus sabdariffa, a plant commonly used in herbal tea blends and other beverages, will have a beneficial effect on blood pressure in people with mildly elevated blood pressure.


Condition Intervention Phase
Hypertension
Behavioral: herbal therapy/botanical therapy (Hibiscus sabdariffa)
Phase 1
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: The Effect of Hibiscus Sabdariffa L. Tisane on Blood Pressure in Prehypertensive and Mildly Hypertensive Men and Women

Resource links provided by NLM:


Further study details as provided by Tufts University:

Enrollment: 66
Study Completion Date: December 2007
Primary Completion Date: December 2007 (Final data collection date for primary outcome measure)
  Eligibility

Ages Eligible for Study:   30 Years to 70 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Systolic blood pressure 120-150 mm Hg
  • Diastolic blood pressure 95 mm Hg or less
  • Body mass index (BMI) 18.5-34.9 kg/m2

Exclusion Criteria:

  • Smoking
  • Use of medications that influence blood pressure
  • Cardiovascular disease
  • Chronic kidney disease
  • Diabetes
  • Regular use of vitamin C supplements (min 500 mg/day) within prior 30 days
  • Regular strenuous aerobic activity greater than 30 min/day
  • Excessive intake of caffeine or alcohol
  • Pregnancy within last 6 months or during study period
  • Abnormal complete blood count (CBC), urinalysis or electrocardiogram (EKG)
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00175110

Locations
United States, Massachusetts
Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University
Boston, Massachusetts, United States, 02111
Sponsors and Collaborators
Tufts University
Celestial Seasonings
Tufts Medical Center
Investigators
Principal Investigator: Jeffrey B Blumberg, Ph.D. Tufts Medical Center
  More Information

Additional Information:
No publications provided by Tufts University

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Jeffrey B. Blumberg, Tufts University
ClinicalTrials.gov Identifier: NCT00175110     History of Changes
Other Study ID Numbers: PV3727
Study First Received: September 12, 2005
Last Updated: December 2, 2009
Health Authority: United States: Institutional Review Board

Keywords provided by Tufts University:
pre-hypertension
mild hypertension

Additional relevant MeSH terms:
Hypertension
Vascular Diseases
Cardiovascular Diseases

ClinicalTrials.gov processed this record on July 24, 2014