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Sotatercept /kg

Phase 2

Hypertension, Pulmonary | Small molecule | Cardiovascular |Merck & Company, Inc.|Last Updated: Jun 8, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment294
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06814145Extension Study of Sotatercept in People With Pulmonary Hypertension (MK-7962-023)PHASE2 ACTIVE NOT_RECRUITING 130Apr 16, 2025Aug 10, 2035Jun 8, 202657 United States, Belgium +10
NCT04945460A Study of Sotatercept for the Treatment of Cpc-PH Due to HFpEF (MK-7962-007/A011-16)PHASE2 COMPLETED 164Dec 29, 2021Apr 9, 2026Apr 15, 2026119 United States, Belgium +10
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Study Endpoints
Primary Endpoints
Number of Participants Who Experience an Adverse Event (AE)
Up to approximately 187 weeks

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.

Number of Participants Who Discontinue Study Treatment Due to an AE
Up to approximately 168 weeks

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.

Change From Baseline in Pulmonary Vascular Resistance (PVR) at Week 24
Baseline and Week 24

PVR, a hemodynamic variable of pulmonary circulation, is measured by right heart catheterization (RHC).

Secondary Endpoints
Change From Baseline in Pulmonary Vascular Resistance (PVR) at Week 48
Baseline and Week 48
Change From Baseline in the 6-Minute Walk Distance (6MWD) at Week 48
Baseline and Week 48
Change From Baseline in the 6MWD at Week 126
Baseline and Week 126
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Sotatercept 0.3 mg/kgEXPERIMENTALParticipants receive sotatercept 0.3 mg/kg subcutaneous (SC) injection every 3 weeks (Q3W) for up to approximately 168 weeks or until discontinuation.
Sotatercept 0.7 mg/kgEXPERIMENTALParticipants receive sotatercept 0.7 mg/kg SC injection Q3W for up to approximately 168 weeks or until discontinuation.
PlaceboPLACEBO_COMPARATORDelivered subcutaneously (SC) every 3 weeks (Q3W) for 24 weeks in the placebo-controlled treatment period.
Sotatercept 0.3 mg/kg, escalating to 0.7 mg.kgEXPERIMENTALSotatercept SC at a starting dose level of 0.3 mg/kg for 3 dosing visits (Q3W), then escalating to 0.7 mg/kg SC on the fourth dosing visit and Q3W for the remainder of the 24-week treatment Period.
Interventions
NameTypeDescription
SotaterceptBIOLOGICALsubcutaneous injection
Sotatercept 0.3 mg/kgDRUGAdministered by subcutaneous injection. Sotatercept (ACE-011) is a recombinant fusion protein consisting of the extracellular domain of the human activin receptor type IIA linked to the Fc piece of human IgG1.
PlaceboDRUGAdministered by subcutaneous injection
Sotatercept 0.3 mg/kg escalating to 0.7 mg/kgDRUGAdministered by subcutaneous injection. Sotatercept (ACE-011) is a recombinant fusion protein consisting of the extracellular domain of the human activin receptor type IIA linked to the Fc piece of human IgG1.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites57

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: \- Completed MK-7962-007 (CADENCE) (Visit 9 and end of treatment \[EOT\] visit) without discontinuing study intervention and is able to safely enroll into MK-7962-007 (HARMONIZE) Exclusion Criteria: The...

Countries:United StatesBelgiumCanadaFranceGermanyIsraelItalyMexicoPolandSpainSwedenUnited Kingdom
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Recent Changes (Last 90 Days)
MEDIUMJun 8, 2026NCT06814145Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJun 8, 2026NCT06814145Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJun 8, 2026NCT06814145Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMMay 27, 2026NCT06814145primaryCompletionDate: changed
MEDIUMMay 27, 2026NCT06814145primaryCompletionDate: changed
MEDIUMMay 26, 2026NCT04945460TRIAL_REMOVED: changed
LOWMay 26, 2026NCT06814145primaryCompletionDate: changed
LOWMay 24, 2026NCT06814145studyFirstPostDate: changed
LOWMay 24, 2026NCT04945460studyFirstPostDate: changed