Expired Study
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Boston, Massachusetts 02115


Observing how cocoa effects the cardiovascular and renal system.

Study summary:

Study designed to assess the vascular benefits of drinking Cocoa that is rich in polyphenols. Vascular beds studied will include kidney, brain, eye, and periphery (finger). Time course of the effects will be studied in healthy normal (including elderly), and also in subjects with Type I and Type II diabetes. Renal blood flow will be determined by PAH/In u test clearance. Cranial ultrasound will be used to measure brain blood flow. Retinal blood flow will be assessed by specialized ultrasound/doppler device. Peripheral blood flow is measured by plethysmography. Urine and blood samples will be assayed for routine physiologic parameters, including hormone assessment, and also for the presence of cocoa metabolites.


Inclusion Criteria: Diabetes (Type I and II), with or without Hypertension, blood pressure <165/105 Exclusion Criteria: Under 18 or over 85 years old, women who are pregnant or able to become pregnant, history of heart attack, stroke or chest pain within the past 6 months, kidney disease, heart disease, severe high blood pressure not controlled by medication



Primary Contact:

Principal Investigator
Norman K Hollenberg, M.D., Ph.D.
Brigham and Women's Hospital

Backup Contact:


Location Contact:

Boston, Massachusetts 02115
United States

There is no listed contact information for this specific location.

Site Status: N/A

Data Source: ClinicalTrials.gov

Date Processed: February 04, 2019

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