Evaluating Sotatercept in Children with Pulmonary Arterial Hypertension
Official title: A Phase 2 Open-label Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Sotatercept (MK-7962) in Children From 1 to Less Than 18 Years of Age With PAH on Standard of Care
Run by Merck Sharp & Dohme LLC · NCT05587712 · Data updated 2026-11-12
This study is testing a new drug called sotatercept in children with pulmonary arterial hypertension to see how well they tolerate it and how it affects their condition.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 1 Year to 17 Years |
| Sex | All |
| Enrollment | 42 (estimated) |
| Sponsor | Merck Sharp & Dohme LLC Industry-sponsored |
| Locations | 35 sites (Los Angeles, California and 34 other locations) |
| Status | Recruiting |
| Started | January 19, 2023 |
| Main results expected | September 21, 2028 |
| Study ends | September 21, 2028 |
| Registry record updated | November 2, 2026 |
| Trial ID | NCT05587712 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are children aged 1 to 17 years with a documented diagnosis of PAH and stable on background therapy.
✕Probably not a fit
Patients who do not have a confirmed diagnosis of PAH or are not on stable background therapy 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 study evaluates the safety, tolerability, and pharmacokinetics of sotatercept in children aged 1 to 17 years diagnosed with pulmonary arterial hypertension (PAH) of various subtypes. Participants must be on a stable dose of standard PAH therapy and will receive sotatercept over a 24-week treatment period. The study aims to gather data on how well the drug is tolerated and its effects on the condition without a formal hypothesis.
Why it matters
Potential benefit: If successful, this treatment could improve outcomes for children suffering from pulmonary arterial hypertension.
How similar studies have gone: While this approach is novel in the pediatric population, similar studies in adults have shown promise with sotatercept.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria * Documented, historic diagnostic right heart catheterization (RHC) any time before Screening confirming the diagnosis of PAH WHO Group 1 in any of the following subtypes: * Idiopathic pulmonary arterial hypertension (IPAH) * Heritable PAH * Drug/toxin-induced PAH * PAH associated with connective tissue disease * PAH-congenital heart disease (CHD) with shunt closure \>6 months before Screening and subsequently confirmed by RHC before Screening * PAH with coincidental shunt. * Must be on a stable dose(s) of background PAH therapy (phosphdiesterase-5 (PDE5) inhibitors, endothelin receptor antagonists (ERAs), soluble guanylate cyclase stimulators (sGCS), or prostanoids \[including subcutaneous and intravenous\]) * If male, agree to the following during the intervention period and for at least 16 weeks (112 days) after the last dose of study intervention: * Abstains from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long-term and persistent basis) and agrees to remain abstinent or * Uses contraception unless confirmed to be azoospermic (vasectomized or secondary to medical cause, documented from the site personnel's review of the participant's medical records, medical examination, or medical history interview) as detailed below: * Uses a male condom plus partner use of an additional contraceptive method when having penile-vaginal intercourse with a woman of childbearing potential (WOCBP) who is not currently pregnant Note: Men with a pregnant or breastfeeding partner must agree to remain abstinent from penile-vaginal intercourse or use a male condom during each episode of penile-vaginal penetration. * If female, must be either not a WOCBP or use a contraceptive method that is highly effective or be abstinent from heterosexual intercourse during the intervention period and for at least 16 weeks (112 days) after the last dose of study intervention * If male, agrees to refrain from donating blood or sperm for the duration of the study and for 16 weeks (112 days) after the last dose of study intervention * If female, agrees to refrain from donating blood, eggs, or ovum for the duration of the study and for at least 16 weeks (112 days) after the last dose of study intervention Exclusion Criteria * History of left-sided heart disease, including valvular disease (eg, moderate or greater mitral or aortic regurgitation or stenosis), left ventricular outflow tract obstruction, and/or left heart failure (eg, restrictive or dilated cardiomyopathy) * Severe (as based on the opinion of the investigator) congenital or developmental abnormalities of the lung, thorax, and/or diaphragm * History of Eisenmenger syndrome, Potts shunt, or atrial septostomy * Unrepaired or residual cardiac shunt * Diagnosis of pulmonary veno-occlusive diseases, pulmonary capillary hemangiomatosis, or overt signs of capillary and/or venous involvement * PAH associated with portal hypertension * Known visceral (lung, liver, or brain) arteriovenous malformation(s) * History of full or partial pneumonectomy * Untreated more than mild obstructive sleep apnea * History of known pericardial constriction * Family history of sudden cardiac death or long QT syndrome * Any current or prior history of symptomatic coronary disease (myocardial infarction, percutaneous coronary intervention, coronary artery bypass graft surgery, or cardiac anginal chest pain) within 6 months before Screening * Cerebrovascular accident within 3 months before Screening * Prior exposure to sotatercept or luspatercept or has had an allergic reaction to any of their excipients
Where it's running
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The Regents of the University of California - Los Angeles (UCLA Pediatrics) ( Site 1606)
Los Angeles, California, United States Recruiting -
Stanford University School of Medicine ( Site 1603)
Palo Alto, California, United States Recruiting -
UCSF Benioff Children's Hospital San Francisco ( Site 1611)
San Francisco, California, United States Recruiting -
Children's Hospital Colorado ( Site 1609)
Aurora, Colorado, United States Recruiting -
Children's National Medical Center ( Site 1600)
Washington D.C., District of Columbia, United States Recruiting -
Cincinnati Children's Hospital Medical Center ( Site 1602)
Cincinnati, Ohio, United States Recruiting
Show 29 more locations
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Children's Hospital of Philadelphia (CHOP) ( Site 1608)
Philadelphia, Pennsylvania, United States Recruiting -
Seattle Children's Hospital ( Site 1605)
Seattle, Washington, United States Recruiting -
Children's Wisconsin ( Site 1610)
Milwaukee, Wisconsin, United States Recruiting -
The Children's Hospital at Westmead ( Site 0001)
Westmead, New South Wales, Australia Recruiting -
Clinica Somer-Unidad de Investigacion y Docencia ( Site 0205)
Rionegro, Antioquia, Colombia Recruiting -
Fundación Valle del Lili ( Site 0200)
Cali, Valle del Cauca Department, Colombia Recruiting -
Clínica Imbanaco S.A.S ( Site 0203)
Cali, Valle del Cauca Department, Colombia Recruiting -
CHU de Toulouse - Hôpital des Enfants ( Site 0302)
Toulouse, Haute-Garonne, France Recruiting -
Assistance Publique Hôpitaux de Marseille - Hôpital de la Timone ( Site 0303)
Marseille, Provence-Alpes-Côte d'Azur Region, France Recruiting -
Hôpital Universitaire Necker Enfants Malades ( Site 0300)
Paris, France Recruiting -
Universitaetsklinikum Heidelberg ( Site 0401)
Heidelberg, Baden-Wurttemberg, Germany Recruiting -
Klinikum der Universität München Großhadern ( Site 0404)
München, Bavaria, Germany Recruiting -
Medizinische Hochschule Hannover ( Site 0405)
Hanover, Lower Saxony, Germany Recruiting -
Schneider Children's Medical Center ( Site 0603)
Petah Tikva, Israel Recruiting -
Sheba Medical Center ( Site 0601)
Ramat Gan, Israel Recruiting -
University Medical Center Groningen ( Site 0900)
Groningen, Netherlands Recruiting -
Centrum Zdrowia Dziecka w Warszawie-Klinika Kardiologii ( Site 1103)
Warsaw, Masovian Voivodeship, Poland Recruiting -
Uniwersyteckie Centrum Kliniczne-Klinika Kardiologii Dziecięcej i Wad Wrodzonych Serca ( Site 1102)
Gdansk, Pomeranian Voivodeship, Poland Recruiting -
Wits Clinical Research-Chris Hani Baragwanath Hospital ( Site 1201)
Johannesburg, Soweto, Gauteng, South Africa Recruiting -
Hospital Universitario Ramón y Cajal ( Site 1300)
Madrid, Madrid, Comunidad de, Spain Recruiting -
Hospital Universitari i Politecnic La Fe ( Site 1303)
Valencia, Valencia, Spain Recruiting -
Hospital Universitari Vall d'Hebron ( Site 1302)
Barcelona, Spain Recruiting -
HOSPITAL GENERAL UNIVERSITARIO GREGORIO MARAÑON ( Site 1301)
Madrid, Spain Recruiting -
Hacettepe Universite Hastaneleri ( Site 1400)
Ankara, Turkey (Türkiye) Recruiting -
Gazi University Health Research and Application Center Gazi -Çocuk Sağlığı ve Hastalıkları Anabilim ( Site 1402)
Ankara, Turkey (Türkiye) Recruiting -
Ankara Bilkent Şehir Hastanesi. ( Site 1403)
Ankara, Turkey (Türkiye) Recruiting -
Mehmet Akif Ersoy Research and Training Hospital ( Site 1404)
Istanbul, Turkey (Türkiye) Recruiting -
Great Ormond Street Hospital For Children NHS Foundation Trust ( Site 1500)
London, London, City of, United Kingdom Recruiting -
Monroe Carell Jr. Children's Hospital ( Site 1601)
Nashville, Tennessee, United States Completed
Study contacts
- Study coordinator: Toll Free Number
- Email: Trialsites@msd.com
- Phone: 1-888-577-8839
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.