2025-523010-89-00RecruitingPhase 1/2
Phase 1b/2 Dose-Ranging Study of the Safety, PK, PD & Efficacy of the Activin Signaling Inhibitor HS235 vs placebo added to background therapy in PAH (SEASIde)
Source: EU CTIS (euclinicaltrials.eu) · Last updated 26 Oct 2026
- Status (registry)
- Recruiting
- Phase (registry)
- Phase 1/2
- Study type
- Interventional
- Enrollment
- 50 (estimated)
- First submitted
- 5 Sept 2025
- Start date
- 21 Oct 2026
- Lead sponsor
- 35Pharma Inc.
- Diseases
- Pulmonary arterial hypertension
- EU CT number
- 2025-523010-89-00
What you commit to
- Study type: Interventional · Phase 1/2
- Planned participants: 50
- 17 sites in 5 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of EU CTIS (euclinicaltrials.eu). It describes the study design.
Sites (17)
Sites in registry order. Save your city in your profile to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Vseobecna fakultni nemocnice v Praze | Prague | Czechia | Not yet recruiting |
| Institute for Clinical and Experimental Medicine | Prague | Czechia | Not yet recruiting |
| Universitaetsmedizin Greifswald KöR | Greifswald | Germany | Not yet recruiting |
| Thoraxklinik Heidelberg gGmbH | Heidelberg | Germany | Not yet recruiting |
| Hospital Clinic de Barcelona | Barcelona | Spain | Recruiting |
| Hospital Universitari Vall d'Hebron | Barcelona | Spain | Recruiting |
| Hospital Universitario 12 de Octubre | Madrid | Spain | Recruiting |
| Hospital Universitario La Paz | Madrid | Spain | Recruiting |
| Hospital Costa del Sol | Marbella | Spain | Recruiting |
| Hospital Universitario De Salamanca | Salamanca | Spain | Recruiting |
| Hospital Universitario Marqués de Valdecilla | Santander | Spain | Recruiting |
| Hospital Universitario Virgen De La Macarena | Sevilla | Spain | Recruiting |
| Hospital Universitario de Toledo | Toledo | Spain | Recruiting |
| Semmelweis University | Budapest VIII | Hungary | Not yet recruiting |
| University of Szeged | Szeged | Hungary | Not yet recruiting |
| Szpital Uniwersytecki nr 2 im dr Jana Biziela w Bydgoszczy | Bydgoszcz | Poland | Not yet recruiting |
| Krakowski Szpital Specjalistyczny Im. Sw. Jana Pawla II | Cracow | Poland | Not yet recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.