The Effect of Hibiscus Sabdariffa L. Tea on Blood Pressure

This study is currently recruiting participants.

Verified by Tufts Medical Center, July 2006

First Received: September 12, 2005 Last Updated: January 12, 2007 History of Changes

Sponsors and Collaborators:	Tufts Medical Center Celestial Seasonings
Information provided by:	Tufts Medical Center
ClinicalTrials.gov Identifier:	NCT00175110

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 I Phase II

Study Type:	Interventional
Study Design:	Treatment, Randomized, Double-Blind, Placebo Control, Parallel Assignment, Efficacy Study
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:

MedlinePlus related topics: Herbal Medicine High Blood Pressure

U.S. FDA Resources

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

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

Contacts

Contact: Diane L McKay, Ph.D.

(617) 556-3000 ext 4666

diane.mckay@tufts.edu

Locations

United States, Massachusetts
Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University	Recruiting
Boston, Massachusetts, United States, 02111
Contact: Robert M Russell, MD 617-556-3335 rob.russell@tufts.edu
Principal Investigator: Jeffrey B Blumberg, PhD
Sub-Investigator: Diane L McKay, PhD
Sub-Investigator: Edward Saltzman, MD

Sponsors and Collaborators

Tufts Medical Center

Celestial Seasonings

Investigators

Principal Investigator:

Jeffrey B Blumberg, Ph.D.

Tufts Medical Center

More Information

Additional Information:

Click here for more information about this study This link exits the ClinicalTrials.gov site

No publications provided

Study ID Numbers:	PV3727
Study First Received:	September 12, 2005
Last Updated:	January 12, 2007
ClinicalTrials.gov Identifier:	NCT00175110 History of Changes
Health Authority:	United States: Institutional Review Board

Keywords provided by Tufts Medical Center:

pre-hypertension
mild hypertension

Study placed in the following topic categories:

Hibiscus
Tea
Vascular Diseases
Hypertension

Additional relevant MeSH terms:

Vascular Diseases
Cardiovascular Diseases
Hypertension

ClinicalTrials.gov processed this record on September 02, 2009