# Endothelin-1 Receptor Blockade in Resistant Hypertension

> **NCT04388124** · PHASE2 · RECRUITING · sponsor: **University Hospital, Rouen** · enrollment: 24 (estimated)

## Conditions studied

- Resistant Hypertension

## Interventions

- **DRUG:** Bosentan
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT04388124
- **Lead sponsor:** University Hospital, Rouen
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2021-10-20
- **Primary completion:** 2026-08
- **Final completion:** 2026-08
- **Target enrollment:** 24 (ESTIMATED)
- **Last updated:** 2026-02-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04388124

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04388124, "Endothelin-1 Receptor Blockade in Resistant Hypertension". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04388124. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*