A Clinical Study of Sotatercept (MK-7962) in People With Pulmonary Arterial Hypertension (MK-7962-038)
SOTERIA
An Open-label Long-term Follow-up Study to Evaluate the Effects of Sotatercept When Added to Background Pulmonary Arterial Hypertension (PAH) Therapy for the Treatment of PAH (MK-7962-038)
5 other identifiers
interventional
815
20 countries
81
Brief Summary
Researchers are looking for more ways to treat PAH. In PAH, the blood vessels in the lungs become thick and narrow, which makes it harder for blood to flow. This causes high blood pressure in the lungs and overworks the heart. PAH can make it hard to breathe and be active. Some standard (usual) treatments for PAH can treat symptoms of PAH but do not stop PAH from getting worse. Sotatercept is a study medicine designed to treat PAH. It is a targeted therapy, which is a treatment that works on certain proteins that play a role in causing PAH. This is a long-term follow-up (LTFU) study. People who took part in certain other studies testing sotatercept for PAH may be able to join this study. The goal of this study is to learn about the long-term safety of sotatercept and if people tolerate it when taken with standard PAH treatment over a longer period of time.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started May 2021
Longer than P75 for phase_3
81 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 12, 2021
CompletedFirst Submitted
Initial submission to the registry
October 7, 2025
CompletedFirst Posted
Study publicly available on registry
October 20, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 7, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 7, 2028
March 27, 2026
March 1, 2026
7.6 years
October 7, 2025
March 25, 2026
Conditions
Outcome Measures
Primary Outcomes (8)
Number of Participants Who Experience an Adverse Event (AE)
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who experience an AE will be reported.
Up to approximately 90 months
Number of Participants Who Discontinue Study Treatment Due to an AE
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who discontinue study treatment due to an AE will be reported.
Up to approximately 86 months
Number of Participants with Detectable Anti-Drug Antibodies (ADAs)
ADAs will be detected in serum. The number of participants with detectable ADAs will be reported.
Up to approximately 88 months
Laboratory parameters (Hematology): Concentration of Platelets and Hemoglobin
Blood samples will be collected to determine the concentration of platelets and hemoglobin.
Up to approximately 88 months
Laboratory parameters (Chemistry): Concentration of Creatinine, Total Bilirubin, and Alanine Aminotransferase (ALT)
Blood samples will be collected to determine the concentration of creatinine, total bilirubin, and ALT.
Up to approximately 86 months
Change From Baseline in Body Weight
Change from baseline in body weight will be reported.
Baseline and up to approximately 86 months
Change From Baseline in Blood Pressure
Change from baseline in systolic and diastolic blood pressure will be reported.
Baseline and up to approximately 86 months
Change From Baseline in Electrocardiogram (ECG)
Change from baseline in ECG (12-lead) for the determination of Fridericia's corrected QT interval (QTcF) will be reported.
Baseline and up to approximately 86 months
Secondary Outcomes (5)
Change From Baseline in 6-Minute Walk Distance (6MWD)
Baseline and up to approximately 48 months
Change From Baseline in N-Terminal Pro-Hormone B-type Natriuretic Peptide (NT-proBNP) Levels
Baseline and up to approximately 48 months
Change From Baseline in the Percentage of Participants Who Improve or Show Maintenance in Modified New York Heart Association/ World Health Organization Classification of Functional Status (WHO FC)
Baseline and up to approximately 48 months
Change From Baseline in Pulmonary Vascular Resistance (PVR)
Baseline and up to approximately 48 months
Change From Baseline in Percentage of Participants Who Maintain or Achieve a Low Risk Score Using the Simplified French Risk Score Calculator
Baseline and up to approximately 48 months
Study Arms (1)
Sotatercept
EXPERIMENTALParticipants enrolling from blinded PAH sotatercept studies will begin sotatercept at a dose of 0.3 mg/kg subcutaneous (SC) injection and can titrate up to the target dose of 0.7 mg/kg SC injection for the remainder of the study. Participants enrolling from unblinded PAH sotatercept studies will continue sotatercept at their current dose and, if at a dose \<0.7 mg/kg, can titrate up to the target dose of 0.7 mg/kg SC injection for the remainder of the study.
Interventions
Sotatercept SC injection every 3 weeks
Eligibility Criteria
You may qualify if:
- Has completed their current respective PAH sotatercept clinical study and its requirements, and must not have discontinued early
- Is willing to adhere to the study visit schedule, and understands and will comply with all protocol requirements
- Must have the ability to understand and provide documented informed consent
You may not qualify if:
- Did not participate in a sotatercept PAH parent study
- Missed more than the equivalent of 4 consecutive doses between the end of parent study and the start of this study.
- Presence of an ongoing serious adverse event that occurred during a PAH sotatercept clinical study that is assessed to be possibly or probably related to sotatercept
- Is a female who is pregnant or breastfeeding
- Is or has an immediate family member who is investigational site or Sponsor staff directly involved with this study
- Is currently enrolled in another investigational product study other than a sotatercept study
- Is incapacitated
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (81)
Pulmonary Associates, PA ( Site 1008)
Phoenix, Arizona, 85032, United States
University of California San Diego Health ( Site 1002)
La Jolla, California, 92039, United States
UCSF Helen Diller Medical Center at Parnassus Heights ( Site 1019)
San Francisco, California, 94143, United States
Jeffrey S. Sager, MD Medical Corporation ( Site 1060)
Santa Barbara, California, 93105-5316, United States
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center ( Site 1028)
Torrance, California, 90502, United States
University of Colorado Hospital ( Site 1013)
Aurora, Colorado, 80045, United States
Mayo Clinic Jacksonville ( Site 1045)
Jacksonville, Florida, 32224, United States
AdventHealth Orlando ( Site 1058)
Orlando, Florida, 32803, United States
University of Kansas Medical Center ( Site 1020)
Kansas City, Kansas, 66160, United States
Norton Pulmonary Specialists ( Site 1066)
Louisville, Kentucky, 40202, United States
Tufts Medical Center ( Site 1012)
Boston, Massachusetts, 02111, United States
University Of Nebraska Medical Center ( Site 1053)
Omaha, Nebraska, 68198-5990, United States
Weill Cornell Medical Center ( Site 1046)
New York, New York, 10021, United States
The Carl and Edyth Lindner Center for Research and Education at the Christ Hospital ( Site 1001)
Cincinnati, Ohio, 45219, United States
University of Cincinnati Medical Center ( Site 1035)
Cincinnati, Ohio, 45219, United States
Ohio State University Wexner Medical Center ( Site 1032)
Columbus, Ohio, 43210, United States
Oregon Health & Science University ( Site 1054)
Portland, Oregon, 97239, United States
CHI St. Luke's Health Baylor College of Medicine Medical Center ( Site 1044)
Houston, Texas, 77030, United States
Instituto de Investigaciones Clinicas Quilmes ( Site 1903)
Quilmes, Buenos Aires, B1878GEG, Argentina
Instituto Médico Río Cuarto ( Site 1907)
Río Cuarto, Córdoba Province, X5800AEV, Argentina
Instituto Cardiovascular de Rosario ( Site 1906)
Rosario, Santa Fe Province, S2000DSR, Argentina
Sanatorio Parque ( Site 1905)
Rosario, Santa Fe Province, S2000DSV, Argentina
Sanatorio Allende ( Site 1908)
Córdoba, X5021FPQ, Argentina
Hospital Provincial Dr. Jose M. Cullen ( Site 1902)
Santa Fe, S3000EOZ, Argentina
Royal Prince Alfred Hospital ( Site 1106)
Camperdown, New South Wales, 2050, Australia
John Hunter Hospital ( Site 1101)
New Lambton Heights, New South Wales, 2305, Australia
Royal Hobart Hospital ( Site 1107)
Hobart, Tasmania, 7000, Australia
Fiona Stanley Hospital ( Site 1103)
Murdoch, Western Australia, 6150, Australia
Université Libre de Bruxelles - Hôpital Erasme ( Site 1402)
Brussels, Bruxelles-Capitale, Region de, 1070, Belgium
UZ Leuven ( Site 1401)
Leuven, Vlaams-Brabant, 3000, Belgium
Clínica Imbanaco S.A.S ( Site 3404)
Cali, Valle del Cauca Department, 760042, Colombia
Institut Klinicke a Experimentalni Mediciny ( Site 2202)
Prague, Praha 4, 140 21, Czechia
Vseobecna fakultni nemocnice v Praze ( Site 2201)
Prague, 128 08, Czechia
Rigshospitalet ( Site 3802)
København Ø, Capital Region, 2100, Denmark
Aarhus Universitetshospital, Skejby ( Site 3801)
Aarhus, Central Jutland, 8200, Denmark
Centre Hospitalier Universitaire de Nice - Hopital Pasteur ( Site 1311)
Nice, Alpes-Maritimes, 06300, France
Nouvel Hôpital Civil (NHC) ( Site 1307)
Strasbourg, Bas-Rhin, 67000, France
Hopital Cavale Blanche ( Site 1314)
Brest, Finistere, 29609, France
Hopital Larrey ( Site 1315)
Toulouse, Haute-Garonne, 31400, France
Institut Coeur Poumon - CHRU de Lille ( Site 1306)
Lille, Hauts-de-France, 59037, France
CHU de Grenoble Hopital Nord ( Site 1303)
La Tronche, Isere, 38700, France
Hopital Nord Laennec ( Site 1309)
Saint-Herblain, Loire-Atlantique, 44800, France
CHU Angers ( Site 1313)
Angers, Maine-et-Loire, 49100, France
Centre Hospitalier Universitaire de Saint Étienne- Hôpital Nord-Medecine Vasculaire et Therapeutique ( Site 1302)
Saint-Étienne-de-Montluc, Pays de la Loire Region, 42055, France
Hôpital Louis Pradel ( Site 1317)
Lyon, Rhone, 69677, France
Hôpitaux Universitaires Paris Sud - Hôpital Bicêtre-Pneumologie ( Site 1304)
Le Kremlin-Bicêtre, Val-de-Marne, 94275, France
CHU de la Miletrie Poitiers ( Site 1316)
Poitiers, Vienne, 86021, France
AHEPA University General Hospital of Thessaloniki-1st Cardiology Clinic ( Site 3601)
Thessaloniki, 546 36, Greece
Carmel Hospital ( Site 1705)
Haifa, 3436212, Israel
Haddasah Medical Center ( Site 1711)
Jerusalem, 9112001, Israel
Rabin Medical Center ( Site 1703)
Petah Tikva, 4941492, Israel
Sheba Medical Center ( Site 1701)
Ramat Gan, 5265601, Israel
Ospedale San Giuseppe ( Site 2403)
Milan, Milano, 20123, Italy
AOU Policlinico Umberto I ( Site 2402)
Rome, Roma, 00161, Italy
Radboud University Nijmegen Medical Centre ( Site 2605)
Nijmegen, Gelderland, 6525 GA, Netherlands
Amsterdam UMC, locatie VUmc ( Site 2601)
Amsterdam, North Holland, 1081 HV, Netherlands
Waikato Hospital ( Site 2702)
Hamilton, Waikato Region, 3240, New Zealand
Hospital Garcia de Orta ( Site 3501)
Almada, Setúbal District, 2805-267, Portugal
Gachon University Gil Medical Center ( Site 3103)
Incheon, 21565, South Korea
Severance Hospital, Yonsei University Health System ( Site 3101)
Seoul, 03722, South Korea
Samsung Medical Center ( Site 3106)
Seoul, 06351, South Korea
Hospital Universitario de Son Espases ( Site 1611)
Palma de Mallorca, Balearic Islands, 07120, Spain
Hospital Universitario Marques de Valdecilla ( Site 1601)
Santander, Cantabria, 39008, Spain
Hospital Universitari Vall D Hebron ( Site 1605)
Barcelona, Catalonia, 08035, Spain
Hospital Universitario Puerta de Hierro-Majadahonda ( Site 1604)
Majadahonda, Madrid, 28222, Spain
Hospital Universitario 12 de Octubre ( Site 1603)
Madrid, Madrid, Comunidad de, 28041, Spain
Hospital Clinic de Barcelona ( Site 1602)
Barcelona, 08036, Spain
Hospital Universitario La Paz ( Site 1610)
Madrid, 28046, Spain
Hospital General Universitario Ramon y Cajal ( Site 1609)
Madrid, 28048, Spain
HOSPITAL GENERAL UNIVERSITARIO DE TOLEDO ( Site 1607)
Toledo, 45007, Spain
Sahlgrenska Universitetssjukhuset ( Site 3201)
Gothenburg, Västra Götaland County, 41346, Sweden
UniversitätsSpital Zürich ( Site 3301)
Zurich, 8091, Switzerland
Kaohsiung Veteran General Hospital ( Site 3702)
Kaohsiung City, 813, Taiwan
National Cheng Kung University Hospital ( Site 3703)
Tainan, 704302, Taiwan
Papworth Hospital NHS Foundation Trust ( Site 1208)
Cambridge, Cambridgeshire, CB2 0AY, United Kingdom
Golden Jubilee National Hospital ( Site 1204)
Glasgow, Glasgow City, G81 4DY, United Kingdom
Royal Free Hospital ( Site 1202)
London, London, City of, NW3 2QG, United Kingdom
Royal Brompton Hospital ( Site 1206)
London, London, City of, SW3 6NP, United Kingdom
Hammersmith Hospital ( Site 1203)
London, London, City of, W12 0HS, United Kingdom
Freeman Hospital ( Site 1205)
Newcastle upon Tyne, NE7 7DN, United Kingdom
Royal Hallamshire Hospital ( Site 1207)
Sheffield, S10 2JF, United Kingdom
Related Publications (1)
Preston IR, Badesch D, Ghofrani HA, Gibbs JSR, Gomberg-Maitland M, Hoeper MM, Humbert M, McLaughlin VV, Waxman AB, Manimaran S, Mikhailova E, Reddy M, Lau A, de Oliveira Pena J, Souza R. A long-term follow-up study of sotatercept for treatment of pulmonary arterial hypertension: interim results of SOTERIA. Eur Respir J. 2025 Jul 24;66(1):2401435. doi: 10.1183/13993003.01435-2024. Print 2025 Jul.
PMID: 39978862RESULT
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Medical Director
Merck Sharp & Dohme LLC
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 7, 2025
First Posted
October 20, 2025
Study Start
May 12, 2021
Primary Completion (Estimated)
December 7, 2028
Study Completion (Estimated)
December 7, 2028
Last Updated
March 27, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will share
https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf