DORADO - Fixed Doses of Darusentan as Compared to Placebo in Resistant Hypertension

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Gilead Sciences
ClinicalTrials.gov Identifier:
NCT00330369
First received: May 24, 2006
Last updated: February 19, 2014
Last verified: February 2014
  Purpose

This is a research study of a new experimental drug called darusentan. Darusentan is not currently approved by the U.S. Food and Drug Administration (FDA) for use in the United States, which means that a doctor cannot prescribe this drug. The purpose of this study is to determine if darusentan is effective in reducing systolic blood pressure in subjects with resistant systolic hypertension, despite treatment with full doses of three or more antihypertensive drugs, including a diuretic.


Condition Intervention Phase
Hypertension
Drug: Darusentan
Drug: Darusentan Placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: DORADO - A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Multi-Center, Parallel Group Study to Evaluate the Efficacy and Safety of Fixed Doses of Darusentan in Subjects With Resistant Systolic Hypertension Receiving Combination Therapy With Three or More Antihypertensive Drugs, Including a Diuretic (Protocol DAR-311)

Resource links provided by NLM:


Further study details as provided by Gilead Sciences:

Primary Outcome Measures:
  • Change from baseline in trough sitting systolic and diastolic blood pressure measured by sphygmomanometry [ Time Frame: Baseline to Week 14 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Change from baseline in mean 24-hour systolic and diastolic ambulatory blood pressure [ Time Frame: Baseline to Week 14 ] [ Designated as safety issue: No ]
  • Percentage of subjects to reach systolic blood pressure goal [ Time Frame: Week 14 ] [ Designated as safety issue: No ]
  • Change from baseline in estimated glomerular filtration rate (eGFR) [ Time Frame: Baseline to Week 14 ] [ Designated as safety issue: No ]

Enrollment: 352
Study Start Date: June 2006
Study Completion Date: January 2009
Primary Completion Date: January 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Darusentan Placebo
Placebo to match darusentan for 2-week placebo run-in period, followed by placebo to match darusentan administered orally once daily for 14 weeks
Drug: Darusentan Placebo
Placebo to match darusentan administered orally once daily
Experimental: Darusentan 50 mg
Placebo to match darusentan for 2-week placebo run-in period, followed by darusentan 50 mg administered orally once daily for 14 weeks
Drug: Darusentan
Darusentan administered orally once daily
Other Name: LU 135252
Drug: Darusentan Placebo
Placebo to match darusentan administered orally once daily
Experimental: Darusentan 100 mg
Placebo to match darusentan for 2-week placebo run-in period, followed by darusentan 100 mg administered orally once daily for 14 weeks
Drug: Darusentan
Darusentan administered orally once daily
Other Name: LU 135252
Drug: Darusentan Placebo
Placebo to match darusentan administered orally once daily
Experimental: Darusentan 300 mg
Placebo to match darusentan for 2-week placebo run-in period, followed by darusentan 300 mg administered orally once daily for 14 weeks
Drug: Darusentan
Darusentan administered orally once daily
Other Name: LU 135252
Drug: Darusentan Placebo
Placebo to match darusentan administered orally once daily

  Eligibility

Ages Eligible for Study:   35 Years to 80 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Subjects who are competent to provide written consent
  • Aged 35 to 80 years
  • Subjects with diabetes and/or chronic kidney disease must have a mean systolic blood pressure ≥130 mmHg
  • All other subjects must have a mean systolic blood pressure ≥140 mmHg
  • Receiving and adhering to full doses of appropriate guideline-recommended antihypertensive drugs from three different classes of antihypertensive agents, including a diuretic
  • Female subjects of non-childbearing potential (i.e., post-menopausal for at lest 2 years; surgically sterile)

Exclusion Criteria:

  • Average sitting systolic blood pressure ≥180 mmHg or diastolic blood pressure ≥110 mmHg
  • Serum ALT or AST >2 x the upper limit of the normal range (ULN)
  • Subjects who have experienced myocardial infarction, unstable angina pectoris, or a cerebrovascular accident (CVA) within 6 month; or sick sinus syndrome or second or third degree atrioventricular block, atrial fibrillation or recurrent atrial tachyarrhythmia, recurrent ventricular tachycardia, or symptomatic bradycardia
  • Implanted pacemakers or implanted cardioverter defibrillator (ICD)
  • Symptomatic congestive heart failure requiring treatment
  • Hemodynamically significant valvular heart disease
  • Type I diabetes mellitus
  • Hemodialysis or peritoneal dialysis; or history of renal transplant
  • Diagnosis or recurrence of malignancy within the past 3 years
  • Sleep apnea, unless a recent sleep study demonstrates arterial oxygen saturation greater than or equal to 90%
  • Subjects who perform alternating shift or night work
  • Subjects who have participated in a clinical study involving another investigational drug or device within 4 weeks prior to Screening
  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: NCT00330369

  Show 115 Study Locations
Sponsors and Collaborators
Gilead Sciences
  More Information

Additional Information:
No publications provided by Gilead Sciences

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Gilead Sciences
ClinicalTrials.gov Identifier: NCT00330369     History of Changes
Other Study ID Numbers: DAR-311
Study First Received: May 24, 2006
Last Updated: February 19, 2014
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Hypertension
Vascular Diseases
Cardiovascular Diseases
Antihypertensive Agents
Cardiovascular Agents
Therapeutic Uses
Pharmacologic Actions

ClinicalTrials.gov processed this record on July 22, 2014