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Published on: May 26, 2022
Selective endothelin receptor blockade in resistant hypertension: results of the DORADO trial
1University of Milano-Bicocca, Clinica Medica, Ospedale San Gerardo, Via Pergolesi 33, 20052 Monza (Milano), Italy. guido.grassi@unimib.it
Insights
Darusentan, a novel endothelin receptor blocker, effectively controlled blood pressure in over 50% of patients with resistant hypertension. However, its use was linked to significant peripheral edema and fluid retention, warranting further long-term safety evaluation.
Area of Science:
- Cardiovascular Medicine
- Pharmacology
Background:
- Resistant hypertension poses a significant challenge in antihypertensive drug treatment.
- The DORADO trial investigated darusentan, a selective endothelin receptor blocker, for patients with uncontrolled hypertension despite multiple medications.
Discussion:
- Darusentan demonstrated efficacy in lowering both clinical and ambulatory blood pressure in over 50% of participants.
- A notable concern is the high incidence of peripheral edema and fluid retention associated with darusentan, impacting its safety and tolerability profile.
Key Insights:
- Selective endothelin receptor blockade with darusentan shows promise for treating resistant hypertension.
- Peripheral edema and fluid retention are significant side effects requiring careful consideration.
Outlook:
- Further long-term studies are essential to fully assess the safety and efficacy of darusentan.
- The potential benefits of darusentan must be weighed against its side effect profile in clinical practice.
Abstract:
Effective treatment of resistant hypertension still remains an unmet goal of antihypertensive drug treatment. The DORADO trial recently evaluated the efficacy and safety profile of the selective endothelin receptor blocker darusentan in almost 400 hypertensive patients treated with more than four antihypertensive drugs (including a diuretic) but without effective blood pressure control. The trial results show that > 50% of patients treated with the drug exhibit clinical blood pressure < 140/90 mmHg and well-controlled ambulatory blood pressure values. Darusentan, however, was associated with a high incidence of peripheral edema and fluid retention, a side effect that may reduce the safety profile of the drug and its tolerability. Although these data are promising, the drug requires further evaluation, with particularly regard to the long term.
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