Clinical trial Recruiting at 34 sites Phase 2 Interventional Ages 1 Year to 17

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.

More Pulmonary Arterial Hypertension trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages1 Year to 17 Years
SexAll
Enrollment42 (estimated)
SponsorMerck Sharp & Dohme LLC
Industry-sponsored
Locations35 sites (Los Angeles, California and 34 other locations)
StatusRecruiting
StartedJanuary 19, 2023
Main results expectedSeptember 21, 2028
Study endsSeptember 21, 2028
Registry record updatedNovember 2, 2026
Trial IDNCT05587712 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

  • 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
  • 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.