New drug hope for kids with rare lung disease
NCT ID NCT05587712
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a drug called sotatercept in 42 children aged 1 to 18 who have pulmonary arterial hypertension (PAH), a serious lung condition that makes the heart work too hard. The drug is given as a shot every 3 weeks, and the main goal is to see if it is safe and how the body processes it. Researchers will also check if it helps children walk farther and improves heart function.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- sotatercept (a drug given as an injection under the skin every 3 weeks)
- What this could lead to
- If it works, this could provide a new treatment option for children with pulmonary arterial hypertension, helping control the disease and improve daily life.
- What could go wrong
- This is an early phase 2 study with only 42 children, so results may not apply to all patients. The drug may cause side effects or not work better than current treatments.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 42 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2023
- Expected to finish
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Sep 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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1 year to 17 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
34 sites in 12 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Show contact details
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Study contacts
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Contact
Email: •••••@•••••
Locations
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Ankara Bilkent Şehir Hastanesi. ( Site 1403)
RECRUITINGAnkara, 06800, Turkey (Türkiye)
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Assistance Publique Hôpitaux de Marseille - Hôpital de la Timone ( Site 0303)
RECRUITINGMarseille, Provence-Alpes-Côte d'Azur Region, 13005, France
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CHU de Toulouse - Hôpital des Enfants ( Site 0302)
RECRUITINGToulouse, Haute-Garonne, 31059, France
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Centrum Zdrowia Dziecka w Warszawie-Klinika Kardiologii ( Site 1103)
RECRUITINGWarsaw, Masovian Voivodeship, 04-730, Poland
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Children's Hospital Colorado ( Site 1609)
RECRUITINGAurora, Colorado, 80045, United States
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Children's Hospital of Philadelphia (CHOP) ( Site 1608)
RECRUITINGPhiladelphia, Pennsylvania, 19104, United States
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Children's National Medical Center ( Site 1600)
RECRUITINGWashington D.C., District of Columbia, 20010, United States
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Children's Wisconsin ( Site 1610)
RECRUITINGMilwaukee, Wisconsin, 53226, United States
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Cincinnati Children's Hospital Medical Center ( Site 1602)
RECRUITINGCincinnati, Ohio, 45229, United States
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Clinica Somer-Unidad de Investigacion y Docencia ( Site 0205)
RECRUITINGRionegro, Antioquia, 054040, Colombia
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Clínica Imbanaco S.A.S ( Site 0203)
RECRUITINGCali, Valle del Cauca Department, 760042, Colombia
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Fundación Valle del Lili ( Site 0200)
RECRUITINGCali, Valle del Cauca Department, 760032, Colombia
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Gazi University Health Research and Application Center Gazi -Çocuk Sağlığı ve Hastalıkları Anabilim ( Site 1402)
RECRUITINGAnkara, 06560, Turkey (Türkiye)
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Great Ormond Street Hospital For Children NHS Foundation Trust ( Site 1500)
RECRUITINGLondon, London, City of, WC1N 3JH, United Kingdom
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HOSPITAL GENERAL UNIVERSITARIO GREGORIO MARAÑON ( Site 1301)
RECRUITINGMadrid, 28007, Spain
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Hacettepe Universite Hastaneleri ( Site 1400)
RECRUITINGAnkara, 06100, Turkey (Türkiye)
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Hospital Universitari Vall d'Hebron ( Site 1302)
RECRUITINGBarcelona, 08035, Spain
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Hospital Universitari i Politecnic La Fe ( Site 1303)
RECRUITINGValencia, Valencia, 46026, Spain
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Hospital Universitario Ramón y Cajal ( Site 1300)
RECRUITINGMadrid, Madrid, Comunidad de, 28034, Spain
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Hôpital Universitaire Necker Enfants Malades ( Site 0300)
RECRUITINGParis, 75015, France
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Klinikum der Universität München Großhadern ( Site 0404)
RECRUITINGMünchen, Bavaria, 81337, Germany
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Medizinische Hochschule Hannover ( Site 0405)
RECRUITINGHanover, Lower Saxony, 30625, Germany
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Mehmet Akif Ersoy Research and Training Hospital ( Site 1404)
RECRUITINGIstanbul, 34303, Turkey (Türkiye)
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Monroe Carell Jr. Children's Hospital ( Site 1601)
COMPLETEDNashville, Tennessee, 37232, United States
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Schneider Children's Medical Center ( Site 0603)
RECRUITINGPetah Tikva, 4920235, Israel
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Seattle Children's Hospital ( Site 1605)
RECRUITINGSeattle, Washington, 98105, United States
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Sheba Medical Center ( Site 0601)
RECRUITINGRamat Gan, 5265601, Israel
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Stanford University School of Medicine ( Site 1603)
RECRUITINGPalo Alto, California, 94304, United States
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The Children's Hospital at Westmead ( Site 0001)
RECRUITINGWestmead, New South Wales, 2145, Australia
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The Regents of the University of California - Los Angeles (UCLA Pediatrics) ( Site 1606)
RECRUITINGLos Angeles, California, 90095, United States
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UCSF Benioff Children's Hospital San Francisco ( Site 1611)
RECRUITINGSan Francisco, California, 94158, United States
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Universitaetsklinikum Heidelberg ( Site 0401)
RECRUITINGHeidelberg, Baden-Wurttemberg, 69120, Germany
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University Medical Center Groningen ( Site 0900)
RECRUITINGGroningen, 9713 GZ, Netherlands
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Uniwersyteckie Centrum Kliniczne-Klinika Kardiologii Dziecięcej i Wad Wrodzonych Serca ( Site 1102)
RECRUITINGGdansk, Pomeranian Voivodeship, 80-952, Poland
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Wits Clinical Research-Chris Hani Baragwanath Hospital ( Site 1201)
RECRUITINGJohannesburg, Soweto, Gauteng, 2013, South Africa
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- A 10-Question survey could give brazilian pulmonary hypertension patients a voice in their care
- Experimental blood pressure drug put to the test in healthy volunteers
- Can a new drug keep pulmonary arterial hypertension in check over the long haul?
- Could light leg workouts revive Oxygen-Starved muscles in PAH?
- Texting therapy: could a simple phone message boost exercise and quality of life in a rare lung disease?