Long-term evaluation of seralutinib for pulmonary arterial hypertension
Official title: An Open-label Extension Study Evaluating the Long-term Safety and Efficacy of Seralutinib Orally Inhaled for the Treatment of Pulmonary Arterial Hypertension (PAH)
Run by Gossamer Bio USA, Inc. · NCT06274801 · Data updated 2026-11-12
This study is testing how well and safely a new inhaled medication called seralutinib works for adults with pulmonary arterial hypertension who have already tried it before.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 330 (estimated) |
| Sponsor | Gossamer Bio USA, Inc. Industry-sponsored |
| Drugs / interventions | seralutinib |
| Locations | 120 sites (Fresno, California and 119 other locations) |
| Status | Recruiting |
| Started | September 3, 2024 |
| Main results expected | December 2026 |
| Study ends | December 2026 |
| Registry record updated | October 13, 2026 |
| Trial ID | NCT06274801 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults who have completed a prior seralutinib study and meet the eligibility criteria.
✕Probably not a fit
Patients who have not participated in previous seralutinib studies or do not meet the inclusion criteria may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This open-label extension study aims to assess the long-term safety, tolerability, and efficacy of orally inhaled seralutinib in adults who have previously participated in a seralutinib study. Participants will continue receiving the treatment until seralutinib receives market approval or the study is terminated. The study focuses on individuals with pulmonary arterial hypertension (PAH) to gather additional data on the medication's performance over an extended period.
Why it matters
Potential benefit: If successful, this study could provide valuable insights into the long-term management of pulmonary arterial hypertension with seralutinib.
How similar studies have gone: Other studies involving seralutinib have shown promise, indicating potential for success in this extension study.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Subjects must have completed a qualifying last visit in a prior seralutinib PAH study on investigational product (IP) and in accordance with the protocol. 2. Evidence of an informed consent document, signed and dated by the subject, indicating that the subject has been informed of all pertinent aspects of the study prior to initiation of any subject-mandated procedures. 3. Willingness and ability to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures 4. Women of childbearing potential (WOCBP) must have a negative urine or serum pregnancy test at enrollment visit before first administration of Investigational Product (IP) in this study. 5. WOCBP who are not abstinent and intend to be sexually active with a non-sterilized male partner must be willing to use a highly effective method of contraception from consent through 30 days following the last administration of IP. 6. Male subjects: Non-sterilized male subjects who are not abstinent and intend to be sexually active with a female partner of childbearing potential must use a male condom from consent through 90 days after the last dose of IP. Exclusion Criteria: 1. Severe acute or chronic medical or laboratory abnormality that may increase the risk associated with study participation or seralutinib administration, unless associated with an ongoing AE and discussed with the Sponsor's medical monitor (MM) (or designee). 2. Have any other condition or reason that, in the opinion of the Investigator, would prohibit the subject from participating in the study.
Where it's running
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Valley Advanced Lung Diseases Institute
Fresno, California, United States Recruiting -
Department of Veterans Affairs Greater Los Angeles Healthcare System
Los Angeles, California, United States Recruiting -
UC Davis Health Medical Center
Sacramento, California, United States Recruiting -
Stanford Healthcare
Stanford, California, United States Recruiting -
University of Florida Health
Gainesville, Florida, United States Recruiting -
Mayo Clinic Jacksonville
Jacksonville, Florida, United States Recruiting
Show 44 more locations
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Piedmont Physicians Pulmonary & Sleep Medicine of Buckhead
Atlanta, Georgia, United States Recruiting -
The Emory Clinic
Atlanta, Georgia, United States Recruiting -
Northside Hospital - Atlanta
Atlanta, Georgia, United States Recruiting -
UI Health Hospital
Chicago, Illinois, United States Recruiting -
University of Kansas Medical Center
Kansas City, Kansas, United States Recruiting -
Norton Pulmonary Specialists
Louisville, Kentucky, United States Recruiting -
University of Michigan
Ann Arbor, Michigan, United States Recruiting -
Washington University School of Medicine
St Louis, Missouri, United States Recruiting -
University of Nebraska Medical Center
Omaha, Nebraska, United States Recruiting -
NYU Langone Health
New York, New York, United States Recruiting -
University of Rochester Medical Center
Rochester, New York, United States Recruiting -
University of Cincinnati Medical Center
Cincinnati, Ohio, United States Recruiting -
The Hospital of the University of Pennsylvania
Philadelphia, Pennsylvania, United States Recruiting -
Temple Heart and Vascular Institute (Outpatient Clinic)
Philadelphia, Pennsylvania, United States Recruiting -
UPMC Presbyterian Hospital
Pittsburgh, Pennsylvania, United States Recruiting -
Medical University of South Carolina - Nexus Research Center
Charleston, South Carolina, United States Recruiting -
UT Southwestern Medical Center
Dallas, Texas, United States Recruiting -
CHI St. Luke's Health Baylor College of Medicine Medical Center
Houston, Texas, United States Recruiting -
University of Texas Health Science Center at San Antonio
San Antonio, Texas, United States Recruiting -
Intermountain Medical Center
Murray, Utah, United States Recruiting -
University of Utah Hospital
Salt Lake City, Utah, United States Recruiting -
Inova Fairfax Medical Campus
Falls Church, Virginia, United States Recruiting -
Pulmonary Associates of Richmond, Inc.
Richmond, Virginia, United States Recruiting -
Cardiologia Palermo
Buenos Aires, Argentina Recruiting -
Instituto de Cardiologia de Corrientes Juana Francisca Cabral
Corrientes, Argentina Recruiting -
Instuto de Investigacion Clinicas Quilmes
Quilmes, Argentina Recruiting -
Instituto Medico Rio Cuarto
Río Cuarto, Argentina Recruiting -
Hospital Provincial Dr. Jose Maria Cullen
Santa Fe, Argentina Recruiting -
Pulmonary Hypertension Research Queensland
Auchenflower, Australia Recruiting -
St Vincent's Hospital (Melbourne)
Fitzroy, Australia Recruiting -
Royal Hobart Hospital
Hobart, Australia Recruiting -
University Hospitals of Leuven (Campus Gasthuisberg)
Leuven, Belgium Recruiting -
Instituto das Pequenas Missionarias de Maria Imaculada - Hospital Madre Teresa
Belo Horizonte, Brazil Recruiting -
Complexo de Prevencao, Diagnostico, Terapia e Reabilitacao Respiratoria - Hospital Dia di Pulmao
Blumenau, Brazil Recruiting -
Irmandade da Santa Casa de Misericórdia de Porto Alegre
Porto Alegre, Brazil Recruiting -
Uniao Brasileira de Educacao e Assistencia Hospital Sao Lucas da PUCRS
Porto Alegre, Brazil Recruiting -
Instituto do Coracao do Hospital das Clinicas da Faculdade de medicina da Universidade de Sao Paulo
São Paulo, Brazil Recruiting -
Peter Lougheed Center
Calgary, Canada Recruiting -
London Health Sciences Centre - Victoria Hospital
London, Canada Recruiting -
Centro de Investigacion Clinica UC-CICUC
Santiago, Chile Recruiting -
Enroll SpA
Santiago, Chile Recruiting -
Fundacion Abood Shaio
Bogotá, Colombia Recruiting -
Fundacion Neumologica Colombiana
Bogotá, Colombia Recruiting -
Institut klinicke a experimentalni mediciny Klinika kardiologie Ambulance plicni hypertenze
Prague, Czechia Recruiting
+70 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: GB002 Inc.
- Email: ClinicalTrials@gossamerbio.com
- Phone: 1-866-668-4083
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Understanding how low-load leg exercises affect muscle and blood flow in PAH patients
This substudy tests whether a gentle leg exercise program can change blood flow and oxygen use in the calf muscles of adults with pulmonary arterial hypertension.
-
Sotatercept in Japanese children with pulmonary arterial hypertension
This study tests whether sotatercept is safe and well tolerated in Japanese children with PAH when added to standard PAH treatment.
-
DIAG723 in Adults With HHT
A first-in-human study tests DIAG723 versus placebo in adults with hereditary hemorrhagic telangiectasia to see if it is safe and possibly helpful.
-
See if 18F-FAPI-74 PET/CT can better detect fibrosis in heart and lung disease
Researchers are testing a new PET/CT tracer, 18F-FAPI-74, to see if it can reveal early fibrotic changes in people with heart and lung diseases who are at risk for tissue scarring.
-
Sotatercept in Indian adults with pulmonary arterial hypertension on standard therapy
This study tests whether adding sotatercept to current PAH medicines is safe and tolerable for adults with PAH in India.
-
Once-daily treprostinil palmitil inhalation powder for PAH
This study tests whether taking a daily inhaled treprostinil palmitil powder for 24 weeks improves exercise ability in adults with pulmonary arterial hypertension compared to a placebo.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.