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DORADO-EX – A Dose-Blinded, Long-Term, Safety Extension Study to the Phase 3 DORADO Study of Darusentan in Resistant Hypertension

DORADO-EX – A Dose-Blinded, Long-Term Safety Extension Study of Fixed Doses of Darusentan in Subjects with Resistant Systolic Hypertension Receiving Combination Therapy with Four of More Antihypertensive Drugs, Including a Diuretic (Protocol DAR-311-E)

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12606000310561
Acronym
DORADO-EX
Enrollment
300
Registered
2006-07-20
Start date
2006-12-01
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This is a dose-blinded, long-term safety and efficacy study of a new experimental drug called darusentan. Darusentan is not currently approved by the Therapeutic Goods Administration (TGA) for use in Australia, which means that a doctor cannot prescribe this drug. The purpose of this study is to evaluate the long-term safety of darusentan in subjects with resistant systolic hypertension despite treatment with full doses of four or more antihypertensive medications, including a diuretic. Three doses of darusentan (50, 100, or 300 mg qd) that are orally administered will be examined for the long-term duration of the study.

Interventions

This is a dose-blinded, long-term safety and efficacy study of a new experimental drug called darusentan. Darusentan is not currently approved by the Therapeutic Goods Administration (TGA) for use in Australia, which means that a doctor cannot prescribe this drug. The purpose of this study is to evaluate the long-term safety of darusentan in subjects with resistant systolic hypertension despite treatment with full doses of four or more antihypertensive medications, including a diuretic. Three

This is a dose-blinded, long-term safety and efficacy study of a new experimental drug called darusentan. Darusentan is not currently approved by the Therapeutic Goods Administration (TGA) for use in Australia, which means that a doctor cannot prescribe this drug. The purpose of this study is to evaluate the long-term safety of darusentan in subjects with resistant systolic hypertension despite treatment with full doses of four or more antihypertensive medications, including a diuretic. Three doses of darusentan (50, 100, or 300 mg qd) that are orally administered will be examined for the long-term duration of the study.

Sponsors

Myogen, Inc.
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
0 to No maximum
Healthy volunteers
No

Inclusion criteria

1) Subjects who have completed the Treatment Period of clinical trial DAR-311; 2) Receiving and adhering to full doses of appropriate guideline-recommended antihypertensive drugs from four different classes of antihypertensive agents, including a diuretic.

Exclusion criteria

1) Subjects who discontinued treatment with study drug prior to the end of the Treatment Period of DAR-311 due to a study drug-related AE; 2) Subjects who experience a study drug-related SAE during the DAR-311 study.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026