Live from ClinicalTrials.gov + Open Targets, fetched 2026-11-12 03:23 UTC. Every row links to its source record.
Postmortem · what the sponsor and named sources said, kept apart from what merely happened at the same time
A Study to Evaluate Efficacy and Safety of Macitentan 75 mg in Inoperable or Persistent/Recurrent Chronic Thromboembolic Pulmonary Hypertension
NCT04271475 · Actelion · PHASE3 · terminated · last registry update 2025-06-27 · Decision brief
No research has been run for this trial yet, so only the registry's own reason and the timeline are shown.
What was said, and by whom
Stated is the sponsor's own words; Reported is a named third party. The category is our label from a fixed list; the quote is the evidence.
| Kind | Quote | Our category | Source |
|---|---|---|---|
| Stated | “The Sponsor decided to stop the study for futility based on a recommendation by the IDMC following a pre-planned interim analysis” | – | Registry record, Actelion |
Also happening at the time. Not shown to be a cause.
Registry events on other trials of drugs against EDNRB within 12 months either side of this trial's last update, live from ClinicalTrials.gov. Nothing here was stated as a reason.
- 2026-06-15Also stopped (suspended): City of Hope Medical Center, Bosentan + Gemcitabine (NCT04158635)
- 2026-06-09Phase 3 first posted: CSPC Zhongnuo Pharmaceutical (Shijiazhuang) Co., Ltd., Aprocitentan tablets(SYH9108) + Placebo (NCT07635914)
- 2026-03-30Results posted on the registry: Boehringer Ingelheim, BI 425809 + Bosentan (NCT05723874)
- 2025-11-24Phase 3 first posted: Assistance Publique - Hôpitaux de Paris, Tadalafil + Ambrisentan (NCT07245680)
- 2025-10-21Results posted on the registry: Janssen Pharmaceutical K.K., Macitentan (NCT05167825)
- 2025-09-16Results posted on the registry: PharmaMar, Lurbinectedin + Bosentan (NCT05072106)
- 2025-09-12Results posted on the registry: Actelion, Macitentan (NCT02932410)
- 2025-07-31Results posted on the registry: Aerogen Pharma Limited, VentaProst (NCT03122730)
- 2025-07-31Results posted on the registry: Aerogen Pharma Limited, VentaProst (inhaled epoprostenol delivered via a dedicated delivery system) (NCT04452669)
- 2025-06-22Also stopped (withdrawn): Actelion, Macitentan (NCT01346930)
- 2025-03-30Also stopped (withdrawn): Actelion, Macitentan (NCT05731492)
- 2025-02-20Also stopped (withdrawn): Franz Rischard, DO, Opsumit 10 Mg Tablet (NCT03726398)
- 2025-02-04Also stopped (terminated): Actelion, Inhaled Iloprost (5 μg) + Inhaled Placebo (NCT00302211)
- 2025-02-04Also stopped (terminated): Actelion, bosentan (NCT00313196)
- 2025-02-04Also stopped (terminated): Actelion, macitentan 10 mg (NCT03714815)
- 2025-02-04Also stopped (terminated): Actelion, Bosentan (NCT00310830)
- 2025-02-04Also stopped (terminated): Actelion, Bosentan + Matching placebo (NCT01389856)
- 2025-02-04Also stopped (terminated): Actelion, Macitentan 3 mg + Macitentan 10 mg (NCT01474122)
- 2025-02-03Also stopped (terminated): Actelion, a drug against EDNRB (NCT04955990)
- 2025-02-03Also stopped (terminated): Actelion, Bosentan (NCT00360087)
- 2024-11-12Results posted on the registry: University of Edinburgh, Isosorbide Mononitrate XL (ISMN) + Cilostazol (NCT03451591)
- 2024-11-01Results posted on the registry: United Therapeutics, Treprostinil Inhalation Powder (NCT03950739)
- 2024-10-15Also stopped (terminated): Duke University, Inhaled Iloprost (NCT02170519)
- 2024-08-23Results posted on the registry: Universitaire Ziekenhuizen KU Leuven, Antithrombin-III + Infliximab (NCT02251041)
- 2024-07-30Results posted on the registry: Liquidia Technologies, Inc., LIQ861 Inhaled Treprostinil (NCT03399604)
What is not public
- Internal portfolio and board discussions
- Unpublished trial data and interim analyses
- Terms of any partner or licence decision