Bosentan is named as an intervention in 3 current clinical trials in our France and Netherlands registers. 1 is recruiting patients now. The most common phase is Phase 2. The sponsor with the most trials is Assistance Publique - Hôpitaux de Paris (1). The most-studied condition is Giant Cell Arteritis (GCA).
| Study | Phase | Status | Lead sponsor | Registers |
|---|---|---|---|---|
|
Endothelin-1 Receptor Blockade in Resistant Hypertension
NCT04388124 · ClinicalTrials.gov ↗ · Resistant Hypertension
|
Phase 2 | Recruiting | University Hospital, Rouen | France |
|
Bosentan in the Treatment of Giant Cell Arteritis
NCT06957002 · ClinicalTrials.gov ↗ · Giant Cell Arteritis (GCA)
|
Phase 2 | Not yet open | Assistance Publique - Hôpitaux de Paris | France |
|
Efficacy of Endothelin Receptor Antagonism in Coronary Artery Spasm
NCT06432452 · ClinicalTrials.gov ↗ · Coronary Spasm
|
Phase 2/3 | By invitation | Radboud University Medical Center | Netherlands |
Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Trial titles and statuses are copied from the registry as published.
The same active substance in our other registers, matched by its exact name. Each entry links to the register record it comes from.
12 single-substance products containing Bosentan on the HPRA medicines list.
No entry for Bosentan in the EMA, FDA or German BfArM shortage lists we track.
| Lead sponsor | Trials |
|---|---|
| Assistance Publique - Hôpitaux de Paris | 1 |
| University Hospital, Rouen | 1 |
| Radboud University Medical Center | 1 |
| Register | Trials | Recruiting |
|---|---|---|
| Clinical trials in France | 2 | 1 |
| Clinical trials in Netherlands | 1 | 0 |
A trial with sites in more than one country appears in each of those registers.
3 current trials in our France and Netherlands registers name Bosentan as a drug or biological intervention, as of the registry sync on 26 September 2026. Completed and withdrawn studies are not counted.
Yes. 1 of the 3 trials is recruiting: 1 with sites in France. Eligibility and site contacts are on each trial's record. Only the study team can confirm whether a patient is eligible.
Assistance Publique - Hôpitaux de Paris (1), University Hospital, Rouen (1) and Radboud University Medical Center (1). The number in brackets is how many trials each organisation leads.
Yes. The HPRA medicines list includes 12 single-substance products containing Bosentan, for example Bosentan Accord 125 mg film-coated tablets (Accord Healthcare Ireland Ltd.). A licence does not mean a product is currently marketed or reimbursed; see each product's record.
Not in the lists we track: Bosentan has no entry in the EMA, FDA or German BfArM shortage registers as of their latest sync.
Every trial, status, phase and sponsor on this page is copied from public ClinicalTrials.gov records by a daily sync. Nothing here describes how Bosentan works or whether it is effective, and it is not medical advice.
Everything on this page is copied from public ClinicalTrials.gov registry records — it is not written from memory, and nothing here describes how Bosentan works or whether it is effective. Each trial links to its own record so you can check it yourself.
This page is built automatically: a daily sync job reads the registry records behind our country trial registers, collects every trial that lists Bosentan (or a registered synonym) as a drug or biological intervention, and tabulates the registry fields directly. Placebos and generic comparators are excluded. There is no AI drafting and no per-compound editorial pass, and the page has not been clinically reviewed. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The ClinicalTrials.gov data on this page was last retrieved on 26 Sep 2026.