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Completed Phase 3 Interventional

DORADO-AC - Optimized Doses of Darusentan as Compared to an Active Control in Resistant Hypertension

ClinicalTrials.gov ID: NCT00389779

Public ClinicalTrials.gov record NCT00389779. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jun 26, 2026, 1:30 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3 Randomized, Double-Blind, Placebo- and Active-Controlled, Multi-center, Parallel Group Study to Evaluate the Safety and Efficacy of Darusentan in Subjects With Resistant Hypertension Receiving Combination Therapy With Three or More Antihypertensive Drugs, Including a Diuretic, as Compared to Guanfacine or Placebo (Protocol DAR-312)

Study identification

NCT ID
NCT00389779
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Gilead Sciences
Industry
Enrollment
849 participants

Conditions and interventions

Conditions

Interventions

  • Darusentan Drug
  • Guanfacine Drug
  • Darusentan Placebo Drug

Drug

Eligibility (public fields only)

Age range
35 Years to 80 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Aug 31, 2006
Primary completion
Jul 31, 2009
Completion
Jul 31, 2009
Last update posted
Mar 17, 2014

2006 – 2009

United States locations

U.S. sites
87
U.S. states
29
U.S. cities
73
Facility City State ZIP Site status
Alabama Internal Medicine, PC Birmingham Alabama 35235
Greystone Medical Research, LLC Birmingham Alabama 35242
The Heart Center, PC Huntsville Alabama 35801
Mulberry Medical Associates, PC Montgomery Alabama 36106
Arizona Center for Clinical Research Glendale Arizona 85306
Cardiovascular Consultants, Ltd. Glendale Arizona 85306
Lovelace Scientific Resources, Inc Phoenix Arizona 85016
Cochise Clinical Research Sierra Vista Arizona 85635
Southwest Heart Tucson Arizona 85715
HealthFirst Physician of AR, PA dba Convenient Care Clinic Hot Springs Arkansas 71913
NEA Clinic Jonesboro Arkansas 72401
Arkansas Primary Care Clinic, PA Little Rock Arkansas 72204
Medical Investigations Inc. Little Rock Arkansas 72205
Highgrove Medical Center Bakersfield California 93301
Central Cardiology Medical Clinic Bakersfield California 93308
Impact Clinical Trials Beverly Hills California 90211
VA Greater Los Angeles Healthcare System Los Angeles California 90073
Rancho Cucamonga Clinical Trials Rancho Cucamonga California 91730
Pacific Heart Institute Santa Monica California 90404
Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center Torrance California 90502
Aurora Denver Cardiology Associates Aurora Colorado 80012
Aurora Denver Cardiology Associates Aurora Colorado 80218
Clinical Research of South Florida Coral Gables Florida 33134
Doctors Medical Center of Walton County DeFuniak Springs Florida 32435
Broward General Medical Center Fort Lauderdale Florida 33316
Maxine Hamilton, MD, PA Fort Lauderdale Florida 33316
St. John's Center for Clinical Research Jacksonville Florida 32259
Private Practice of Dr. Bridget Bellingar Largo Florida 33773
A+ Research Inc. Miami Florida 33144
AppleMed Research, Inc. Miami Florida 33155
Internal Medicine Associates of South Florida North Miami Beach Florida 33179
Ormond Medical Arts Pharmaceutical Research center Ormond Beach Florida 32174
Northwest Florida Heart Group, PA - Research Dept Pensacola Florida 32514
Cardiovascular Center of Sarasota Sarasota Florida 34231
Suncoast Cardiovascular Research, Inc. St. Petersburg Florida 33701
Tampa Bay Nephrology Associates, PL Tampa Florida 33603
Orlando Rangel, MD, PA Tampa Florida 33607
Medical College of Georgia Augusta Georgia 30912
AMR Research Associates, LLC Bogart Georgia 30622
Atlanta Vascular Research Foundation Tucker Georgia 30084
North Shore Cardiologist Bannockburn Illinois 60015
Consultants in Cardiovascular Med (CIS) Melrose Park Illinois 60160
Illinois Heart & Lunch Research Normal Illinois 61761
Methodist Medical Center-Heart, Lung & Vascular Institute Peoria Illinois 61606
Medical Consultants, PC Muncie Indiana 47303
University Medical Associates Louisville Kentucky 40202
Dr. Jeffrey Chen Lafayette Louisiana 70503
Louisiana Research Associates, Inc New Orleans Louisiana 70114
Maine Research Associate Auburn Maine 04210
PrimeCare Internal Medicine Biddeford Maine 04005
Great Lakes Heart Center of Alpena Alpena Michigan 49707
Internal Medicine of Nothern Michigan Petoskey Michigan 49770
Minneapolis VAMC Minneapolis Minnesota 55417
Central Minnesota Heart Center at St. Cloud Hospital Saint Cloud Minnesota 56303
St. Paul Cardiology Saint Paul Minnesota 55102
Glacier View Cardiology, PC Kalispell Montana 59901
Impact Clinical Trials Las Vegas Nevada 89106
NJ Heart Linden New Jersey 07036
New Jersey Physicians Passaic New Jersey 07055
Lifeline Research Institute Brooklyn New York 11214
Metrolina Internal Medicine, PA Charlotte North Carolina 28204
Heart Care Center of Charlotte Charlotte North Carolina 28211
Physicians East, PA Winterville North Carolina 27858
Plaza Medical Group, PC Oklahoma City Oklahoma 73112
Castlerock Clinical Research Counsultants, LLC Tulsa Oklahoma 74136
Integrated Medical Research PC Ashland Oregon 97520
Blackstone Cardiology Associates Pawtucket Rhode Island 02860
Charleston Cardiology Charleston South Carolina 29403
Paris View Family Practice Greenville South Carolina 29601
Internal Medicine of Greer Greer South Carolina 29651
Scenic City Research Cleveland Tennessee 37311
Southeast Texas Clinical Research Center Beaumont Texas 77702
Cardiovascular Research Inst. of Dallas Dallas Texas 75231
Galenos Research Dallas Texas 75251
Sergio F Rovner, MD El Paso Texas 79935
Salim Gopalani, MD, PA Houston Texas 77008
Humayun Mirza, MD, PA Houston Texas 77055
Clinical Trial Network Houston Texas 77074
Houston Clinical Research Assoc. Houston Texas 77090
Innovative Research of West Florida Hurst Texas 76054
North Texas Medical Research Plano Texas 75093
Scott & White Memorial Hospital Temple Texas 76508
Fletcher Allen Health Care/University of Vermont Burlington Vermont 05401
Kamlesh N. Dave Cardiology Hopewell Virginia 23860
WVU Physicians of Charleston Charleston West Virginia 25304
Alpha Medical Research, LLC Madison Wisconsin 43717
Executive Health and Research Associates Madison Wisconsin 53717

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 60 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00389779, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 17, 2014 · Synced Jun 26, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00389779 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →